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A N D<br />

J O U R N A L O F<br />

HIJ<br />

Volume 138 • Supplement 1 • <strong>February</strong> <strong>2012</strong><br />

<strong>Cancer</strong> Research<br />

Clinical Oncology<br />

<strong>30th</strong> <strong>German</strong> <strong>Cancer</strong> <strong>Congress</strong><br />

22.–25. <strong>February</strong> <strong>2012</strong><br />

ICC and Messe <strong>Berlin</strong><br />

<strong>Congress</strong> President: Univ.-Prof. Dr. P. Albers<br />

30. Deutscher Krebskongress<br />

22.-25. Februar <strong>2012</strong><br />

Messe und ICC <strong>Berlin</strong><br />

Kongresspräsident: Univ.-Prof. Dr. P. Albers


Inhaltsverzeichnis<br />

This supplement was not sponsored<br />

by outside commercial interests . It was<br />

funded entirely by the publisher .<br />

Inhaltsverzeichnis<br />

Best of Poster<br />

Best of Poster – GI-Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3<br />

Best of Poster – Hauttumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<br />

Best of Poster – Lungentumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6<br />

Best of Poster – Lymphome/Leukämien/kindliche Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . 8<br />

Best of Poster – Mammakarzinom/gynäkologische Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . 10<br />

Best of Poster – Molekulare Onkologie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12<br />

Best of Poster – Palliativmedizin/Supportivtherapie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13<br />

Best of Poster – Seltene Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15<br />

Best of Poster – Versorgungsstrukturen/Qualitätssicherung . . . . . . . . . . . . . . . . . . . . . . . . . . 17<br />

Best of Poster – Urologische Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19<br />

Discussed Poster<br />

Discussed Poster – GI-Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20<br />

Discussed Poster – Mammakarzinom/gynäkologische Tumoren . . . . . . . . . . . . . . . . . . . . . . 23<br />

Discussed Poster – Molekulare Onkologie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26<br />

Discussed Poster – Seltene Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28<br />

Discussed Poster – Supportivtherapie/Palliativmedizin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30<br />

Discussed Poster – Versorgungsstrukturen/Qualitätssicherung . . . . . . . . . . . . . . . . . . . . . . . 33<br />

General Poster<br />

GI-Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35<br />

Hauttumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53<br />

Lungentumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55<br />

Lymphome/Leukämien/pädiatrische Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57<br />

Mammakarzinom/gynäkologische Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61<br />

Molekulare Onkologie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90<br />

Seltene Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106<br />

Supportivmedizin/Palliativtherapie . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119<br />

Urologische Tumoren . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134<br />

Versorgungsstrukturen/Qualitätssicherung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144<br />

KOK<br />

KOK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151<br />

Autorenverzeichnis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

1


Abstracts<br />

J <strong>Cancer</strong> Res Clin Oncol (<strong>2012</strong>)<br />

[Suppl 1] · 138:2–162<br />

10 .1007/s00432-011-1144-4<br />

© Springer-Verlag <strong>2012</strong><br />

Programmkomitee DKK <strong>2012</strong><br />

Adam G (Hamburg), Albers P (Düsseldorf),<br />

Bartsch HH (Freiburg), Beckmann MW (Erlangen),<br />

Bokemeyer C (Hamburg), Brümmendorf<br />

T (Aachen), Bruns J (<strong>Berlin</strong>), Creutzig<br />

U (Hannover), Domagk K (Hamburg),<br />

Ehninger G (Dresden), Engers R (Düsseldorf),<br />

Enghofer E (Leverkusen), Feyer P (<strong>Berlin</strong>),<br />

Gabbert HE (Düsseldorf), Graeven U<br />

(Mönchengladbach), Gschwend J (München),<br />

Hallek M (Köln), Hauschild A (Kiel), Hegewisch-Becker<br />

(Hamburg), Helbig U (<strong>Berlin</strong>),<br />

Helou A (Bonn), Hofstädter F (Regensburg),<br />

Hohenberger W (Erlangen), Hölscher A<br />

(Köln), Hübner J (Frankfurt/M), Iro H (Erlangen),<br />

Kastenholz H (Bonn), Kerschgens C<br />

(<strong>Berlin</strong>), Kleeberg U (Hamburg), Klingebiel<br />

T (Frankfurt), Klinkhammer-Schalke M<br />

(Regensburg), Kohlhuber F (Bonn), Kortmann<br />

R-D (Leipzig), Kotzerke J (Dresden),<br />

Lang H (Mainz), Meier K (Soltau), Nettekoven<br />

G (Bonn), Ortmann, O (Regensburg),<br />

Paradies K (Hamburg), Propping P (Bonn),<br />

Riemann JF (Ludwigshafen), Schadendorf<br />

D (Essen), Schirren J (Wiesbaden), Schmidberger<br />

H (Mainz), Schmiegel W (Bochum),<br />

Schmutzler R (Köln), Singer S (Leipzig),<br />

Stummer W (Münster), Thomas M (Heidelberg),<br />

Wallwiener D (Tübingen), Weis J (Freiburg),<br />

Wesselmann S (<strong>Berlin</strong>), Wiedenmann<br />

B (<strong>Berlin</strong>), Wiegel T (Ulm), Wiestler O (Heidelberg),<br />

Wittekind C (Leipzig), Wolff K-D<br />

(München), Wylegalla C (Freiburg), Zeeb H<br />

(Bremen)<br />

Steering Comitee<br />

2 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

30. Deutscher Krebskongress<br />

22.–25. Februar <strong>2012</strong><br />

Messe und ICC <strong>Berlin</strong><br />

Kongresspräsident<br />

Univ.-Prof. Dr. P. Albers<br />

Albers P (Düsseldorf), Beckmann MW (Erlangen),<br />

Bokemeyer C (Hamburg), Brümmendorf<br />

T (Aachen), Bruns J (<strong>Berlin</strong>), Graeven<br />

U (Mönchengladbach), Hallek M (Köln),<br />

Hauschild A (Kiel), Ortmann, O (Regensburg),<br />

Schmiegel W (Bochum), Zeeb H (Bremen)<br />

Gutachter <strong>2012</strong><br />

Al-Batran S (Frankfurt/M.), Albers P (Düsseldorf),<br />

Alberti W (Wuppertal), Bamberg<br />

M (Tübingen), Barth J (Gießen), Bartsch H<br />

(Freiburg), Beckmann M (Erlangen), Belka<br />

C (München), Berdel W (Münster), Berking<br />

C (München), Biersack H (Bonn), Bokemeyer<br />

C (Hamburg), Bosslet K (Penzberg),<br />

Branscheid D (Bielefeld), Britzen-Laurent<br />

N (Erlangen), Brossart P (Bonn), Budach<br />

W (Düsseldorf), Büttner R (Köln), Dartsch<br />

D (Hamburg), Debatin K (Ulm), Dunst J<br />

(Lübeck), Ebert M (Mannheim), Einsele H<br />

(Würzburg), Emons G (Göttingen), Engenhart-Cabillic<br />

R (Marburg), Engers R (Neuss),<br />

Engert A (Köln), Fehm T (Tübingen), Feyer<br />

P (<strong>Berlin</strong>), Folprecht G (Dresden), Freidank<br />

A (Fulda), Friedel G (Gerlingen), Gabbert H<br />

(Düsseldorf), Ganser A (Hannover), Geißler<br />

M (Esslingen a.N.), Glimm H (Heidelberg),<br />

Graeven U (Mönchengladbach), Gutzmer R<br />

(Hannover), Hallek M (Köln), Hartenstein<br />

R (München), Hartmann J (Kiel), Heike M<br />

(Dortmund), Henne-Bruns D (Ulm), Hense<br />

H (Münster), Hertenstein B (Bremen), Hillemanns<br />

P (Hannover), Hochhaus A (Jena),<br />

Hofheinz R (Mannheim), Hohenberger W<br />

(Erlangen), Hölscher A (Köln), Howaldt H<br />

(Gießen), Hübner J (Frankfurt/M.), Jaehde U<br />

(Bonn), Jocham D (Lübeck), Jonat W (Kiel),<br />

Jordan K (Halle/S.), Kaaks R (Heidelberg),<br />

Keller M (Heidelberg), Kiechle M (München),<br />

Kimmig R (Essen), Klug S (Dresden), Knüchel-Clarke<br />

R (Aachen), Koch U (Hamburg),<br />

Köhne C (Oldenburg), Kortmann R (Leipzig),<br />

Kreienberg R (Ulm), Krug B (Köln), Kubicka<br />

S (Reutlingen), Lang H (Mainz), Lehnert T<br />

(Bremen), Lipp M (<strong>Berlin</strong>), Loquai C (Mainz),<br />

Lordick F (Braunschweig), Lorenzen S (München),<br />

Lutz M (Saarbrücken), Mackensen A<br />

(Erlangen), Marmé D (Freiburg), Meier K<br />

(Soltau), Meyer H (Solingen), Meyer T (Ansbach),<br />

Miller K (<strong>Berlin</strong>), Möhler M (Mainz),<br />

Molls M (München), Müller R (Köln), Neuhaus<br />

P (<strong>Berlin</strong>), Niederle N (Leverkusen),<br />

Oettle H (Friedrichshafen), Ortmann O<br />

(Regensburg), Paradies K (Hamburg), Petersen<br />

C (Hamburg), Possinger K (<strong>Berlin</strong>),<br />

Propping P (Bonn), Reinacher-Schick A (Bochum),<br />

Riemann J (Ludwigshafen), Rödel C<br />

(Frankfurt/M.), Schäfer R (<strong>Berlin</strong>), Schirren<br />

J (Wiesbaden), Schlag P (<strong>Berlin</strong>), Schlegel U<br />

(Bochum), Schmidt E (Bremen), Schmidt-<br />

Wolf I (Bonn), Schmieder K (Mannheim),<br />

Schmiegel W (Bochum), Schöning T (Heidelberg),<br />

Schuler M (Essen), Schütte W Halle/S.,<br />

Schwarz M (Tübingen), Seufferlein T Halle/S.,<br />

Singer S (Leipzig), Stahl M (Essen), Stenzl A<br />

(Tübingen), Stuschke M (Essen), Tannapfel<br />

A (Bochum), Thomas M (Heidelberg), Trarbach<br />

T (Essen), Trefzer U (<strong>Berlin</strong>), Trepel M<br />

(Hamburg), Trümper L (Göttingen), Ukena<br />

D (Bremen), Unger C (Freiburg), Vanhoefer<br />

U (Hamburg), Wecht D (Marburg), Wiegel<br />

T (Ulm), Wirth M (Dresden), Wittekind C<br />

(Leipzig), Wylegalla C (Freiburg)


GI-Tumoren<br />

Best of Poster – GI-Tumoren<br />

B1 – 0077<br />

Protein profiling identifies HDAC2 and TXNL1 as aneuploidy-associated<br />

markers in colorectal cancer<br />

*T . Gemoll 1,2,3 , U . Roblick 1,2,3 , S . Szymczak 4 , T . Braunschweig 5 , S . Becker 3 ,<br />

B .-W . Igl 4 , H .-P . Bruch 1 , A . Ziegler 4 , U . Hellman 6 , M . Difilippantonio 7 , T . Ried 7 ,<br />

H . Jörnvall 2 , G . Auer 3 , J . Habermann 1,2,3,7<br />

1 University of Lübeck, Department of Surgery, Lübeck, Deutschland,<br />

2 Karolinska Institut, Stockholm, Schweden, 3 Karolinska Biomic Center,<br />

Stockholm, Schweden, 4 University of Lübeck, Institute for Medical Biometry<br />

and Statistics, Lübeck, Deutschland, 5 University Clinic RWTH Aachen,<br />

Institute of Pathology, Aachen, Deutschland, 6 Ludwig Institute for <strong>Cancer</strong><br />

Research, Uppsala, Schweden, 7 NCI/NIH, Genetics Department, Bethesda,<br />

Deutschland<br />

Background. DNA aneuploidy has been identified as prognostic factor<br />

for epithelial malignancies. Further understanding of the translation of<br />

DNA aneuploidy into protein expression will help to define therapies,<br />

prognosis and prevention. We therefore aimed at identifying aneuploidy-associated<br />

protein expression.<br />

Methods. DNA ploidy assessment by image cytometry identified three<br />

diploid and four aneuploid colorectal cancer cell lines. All cell lines were<br />

subjected to protein expression profiling by two-dimensional gel electrophoresis.<br />

Proteins were identified by mass spectrometry, subjected to<br />

Ingenuity Pathway Analysis (IPA), and target proteins were validated by<br />

Western Blot. Validated proteins were clinically evaluated by immunohistochemistry<br />

using a tissue microarray (TMA). The TMA comprised<br />

47 aneuploid and 31 diploid primary colorectal carcinomas, as well as 19<br />

adjacent normal mucosa specimens.<br />

Results. Two independent statistical analyses revealed 64 proteins that<br />

were significantly differentially expressed between the diploid and<br />

aneuploid cell lines. Of these, 26 proteins could be identified by mass<br />

spectrometry and were subjected to IPA. The majority of these proteins<br />

interacted in two overlapping high-ranked IPA networks maintaining<br />

Cellular Assembly and Organization, Cellular Function and Maintenance,<br />

Infection Mechanism, Cell Cycle, and Cellular Growth and<br />

Proliferation. Network proteins showed cancer-associated functions of<br />

Cellular Assembly and Organization, Cell-To-Cell Signalling, and Cell<br />

Death (p


Abstracts<br />

their therapeutical role for human gastrointestinal cancers has not yet<br />

been clarified.<br />

To define the inhibitory and pro-apoptotic effects of two PI3K inhibitors<br />

BEZ235 and BKM120, three human colon cancer (HT-29, HCT-116,<br />

DLD-1) and three gastric cancer cell lines (NCIn87, AGS, MKN-45) with<br />

different PIK3CA mutation status were analysed. First, viability, apoptosis<br />

and caspase assays were performed during incubation with these<br />

inhibitors alone or combined with classical cytotoxic agents. Second,<br />

molecular consequences for cell cycle and the signalling pathways were<br />

analysed by defining the protein levels by FACS and Western blot.<br />

Both, BKM120 and the dual PI3K/mTOR inhibitor BEZ235 induced a<br />

significant concentration-dependent reduction in cell viability and an<br />

increase of apoptotic cell death, while mutated cells reacted more sensitive<br />

to treatment. Here, BKM120 was more effective than BEZ235. It caused<br />

a G1 arrest in tumor cells. In contrast, BKM120 induced a G2 shift<br />

in all gastrointestinal cancer cell lines. BKM120 clearly down-regulated<br />

the AKT pathway and BEZ235 additionally inhibited the mTOR (via<br />

p70S6K) pathway. In colon cancer cells, BEZ235 caused a synergistic<br />

induction of apoptosis combined with irinotecan. Combinations with<br />

5-fluoruracil and both substances induced additive apoptotic effects.<br />

Human gastric cancer cells were less sensitive to BEZ235 and BKM120.<br />

In sum, BEZ235 and BKM120 had high pro-apoptotic effects in all human<br />

cell lines and in special cases a better response in the PIK3CA mutated<br />

cells. Our in vitro data further support the clinical development of<br />

these PI3K inhibitors BEZ235 and BKM120 as potential targeting agents<br />

for patients with different wild type or mutated gastrointestinal cancer<br />

cells.<br />

Best of Poster – GI-Tumoren<br />

B4 – 0499<br />

STAT3 is a potential molecular target to sensitize colorectal<br />

cancer cells to chemoradiotherapy<br />

*M . Grade1 , M . Spitzner1 , G . Emons1 , E . Kendziorra1 , M . Rave-Fränk2 , J . Gaedcke1<br />

, H . Becker1 , T . Beißbarth3 , M . Ghadimi1 1Universitätsmedizin Göttingen, Klinik für Allgemein- und Viszeralchirurgie,<br />

Göttingen, Deutschland, 2Universitätsmedizin Göttingen, Klinik für<br />

Strahlentherapie und Radioonkologie, Göttingen, Deutschland, 3Universi tätsmedizin Göttingen, Medizinische Statistik, Göttingen, Deutschland<br />

Background. Resistance to preoperative chemoradiotherapy represents<br />

a major clinical problem in the treatment of patients with locally advanced<br />

rectal cancer. Therefore, the identification of molecular biomarkers<br />

that differentiate responsive and resistant tumors is exceedingly important,<br />

because this may lead to the identification of novel molecular<br />

targets whose modification could be harnessed to sensitize a priori resistant<br />

tumors to multimodal treatment.<br />

Materials and methods. We recently established an in vitro model for<br />

5-FU based chemoradiotherapy, and correlated differences in treatment<br />

sensitivity of 12 colorectal cancer cell lines with pretherapeutic gene expression<br />

profiles. One gene the expression of which correlated positively<br />

with treatment resistance was the signal transducer and activator of<br />

transcription 3, STAT3. To test the functional relevance of this observation,<br />

we first determined STAT3 mRNA and protein expression levels in<br />

all cell lines. Next, we established doxycycline-inducible stable shRNA<br />

single-cell clone (SCC) populations. Successful silencing of STAT3 was<br />

detected by Western blot analysis. The induced SCCs were treated with<br />

3 µM 5-FU, and subsequently exposed to 0, 1, 2, 4, 6, and 8 Gy of Xrays.<br />

In addition, STAT3 was inhibited using two different siRNAs, and<br />

a small-molecular inhibitor (STATTIC).<br />

Results. STAT3 was significantly overexpressed in resistant cells. In<br />

SW480 and SW837 cells, both shRNA- and siRNA-mediated silencing<br />

as well as STATTIC-induced inhibition of STAT3-phosphorylation re-<br />

4 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

sulted in a significantly increased chemoradiosensitivity, with dose-reduction<br />

factors of 1.8 to 2.<br />

Conclusion. These results highlight the potential relevance of STAT3 as a<br />

novel molecular target to sensitize a priori resistant tumor cells to chemoradiotherapy.<br />

Hauttumoren<br />

Best of Poster – Hauttumoren<br />

B5 – 0178<br />

Efficient induction of apoptosis in melanoma cells and reduced<br />

melanoma growth in nude mice by a gene therapy approach<br />

based on oncolytic adenoviral vectors with inducible expression<br />

of TRAIL<br />

*L .F . Fecker1 , H . Fechner2 , J . Eberle1 1Charité – Universitätsmedizin <strong>Berlin</strong> Klinik für Dermatologie, Venerologie<br />

und Allergologie, Hauttumorzentrum, AG Apoptoseregulation in Hauttumoren,<br />

<strong>Berlin</strong>, Deutschland, 2Technische Universität, Institut für Biotechnologie,<br />

<strong>Berlin</strong>, Deutschland<br />

Background. High mortality and therapy resistance of melanoma demands<br />

the development of new strategies, and overcoming of apoptosis<br />

deficiency appears as particularly promising. TNF-related apoptosis inducing<br />

ligand (TRAIL) has been shown previously as highly effective<br />

for apoptosis induction in melanoma cells and may apply for gene therapy<br />

due to its selective impact on tumor cells.<br />

Experimental procedures. Established adenoviral vectors AdV-TRAIL<br />

and AdV-CD95L encode for the death ligands TRAIL and CD95L, respectively.<br />

They are characterized by a variant adenoviral E1A protein<br />

and by deletion of E1B aiming at the restriction of viral replication to<br />

tumor cells. For melanoma selectivity, the viral replication gene E1A is<br />

controlled by a tyrosinase promoter. The tetracycline-responsive transactivator<br />

rtTA and the death ligand are further controlled by a bidirectional<br />

tetracycline-inducible promoter. Apoptosis was monitored by a<br />

DNA fragmentation ELISA and cell killing by crystal violet staining.<br />

For proliferation, real time cell analysis (RTCA) was used. Growth of<br />

tumors established in nude mice was monitored after intratumoral injections<br />

of AdV-TRAIL.<br />

Results. AdV-TRAIL mediated strong expression of E1A and doxycycline<br />

-dependent induction of TRAIL selectively in melanoma cells, which<br />

resulted in melanoma cell lysis and induction of apoptosis. In contrast,<br />

non-melanoma cells and normal human melanocytes appeared as protected.<br />

Comparison of AdV-TRAIL with AdV-CD95L revealed largely<br />

similar efficacies of both death ligands in melanoma cells. In melanoma<br />

xenotransplantation models, AdV-TRAIL demonstrated its efficacy by<br />

significant growth reduction of established melanomas after intratumoral<br />

application. Melanoma cell killing by AdV-TRAIL could be further<br />

improved in vitro by combinations with chemotherapeutics.<br />

Conclusions. We demonstrate that melanoma cells can be efficiently targeted<br />

by death ligand-based gene therapy. Possible resistance may be<br />

overcome by combined chemotherapy.<br />

The study was supported by the <strong>German</strong> <strong>Cancer</strong> Aid (Deutsche Krebshilfe,<br />

grants 107398 and 108008) .


Best of Poster – Hauttumoren<br />

B6 – 0275<br />

Cytotoxicity of new Duplex Drugs linking 3’-C-Ethynylcytidine<br />

and 5-Fluor-2’-deoxyuridine against human Melanoma cells<br />

*S . Schott1 , H . Niessner2 , T . Sinnberg2 , S . Venturelli3 , A . Berger3 , F . Meier2 ,<br />

C . Garbe2 , C . Busch2 1Universitätsklinikum Heidelberg, Universitätsfrauenklinik, Nationales<br />

Centrum für Tumorerkrankungen, Heidelberg, Deutschland, 2University of<br />

Tübingen, Section of Dermato-Oncology, Department of Dermatology and<br />

Allergology, Tübingen, Deutschland, 3University of Tübingen, Department<br />

of Internal Medicine I, Tübingen, Deutschland<br />

Introduction. Melanoma is an increasingly common and potentially fatal<br />

malignancy of the skin and some mucous membranes. Since no cure<br />

exists for metastatic disease (stage IV), there is an urgent need for novel<br />

drugs to overcome melanoma therapy resistance. 2’-Deoxy-5-fluorouridylyl-(3’-5’)-3’-C-ethynylcytidine<br />

[5-FdU(3’-5’)ECyd] and 3’-C-ethynylcytidinylyl-(5’->1-O)-2-O-octadecyl-sn-glycerylyl-(3-Oà5')-2'-deoxy-<br />

5-fluorouridine [ECyd-lipid-5-FdU] represent cytostatic active duplex<br />

drugs, which can be metabolized into various active antimetabolites.<br />

Methods. The cytotoxicity of these heterodinucleoside phosphate analogues,<br />

their corresponding monomers ECyd and 5-FdU and combinations<br />

thereof were evaluated on five metastatic melanoma cell lines and<br />

six ex-vivo patient-derived melanoma cells in comparison to current<br />

standard cytostatic agents and the BRAF V600E inhibitor Vemurafenib.<br />

Further, in vitro studies were performed for cell proliferation and<br />

cell-cycle analysis. Embyrotoxicity was assessed with the chicken embryo<br />

assay. In vivo efficacious in the LOX IMVI solid tumor xenograft<br />

mouse model was tested in the Developmental Therapeutic Program<br />

(DTP) of the National <strong>Cancer</strong> Institute (NCI, US).<br />

Results. In vitro (real-time) proliferation assays demonstrated that<br />

5-FdU(3’-5’)ECyd and ECyd-lipid-5-FdU had a high cytotoxic efficacy<br />

causing 75% melanoma cell death at concentrations in the nano- and<br />

micromolar range. Cytotoxicity was conducted by induction of DNA<br />

cleavage/apoptosis. Chicken embryotoxicity demonstrated that the duplex<br />

drugs were less toxic than their parental monomers. In vivo the<br />

duplex drug 5-FdU(3’-5’)ECyd was efficacious in the murine LOX IMVI<br />

solid tumor xenograph model upon administration of 11.2 mg/kg/injection<br />

every fourth day.<br />

Conclusion. Both duplex drugs are promising novel cytostatic agents for<br />

the treatment of malignant melanoma meriting clinical evaluation.<br />

Best of Poster – Hauttumoren<br />

B7 – 0332<br />

Inhibition of the PI3K-AKT signalling pathway to overcome therapy<br />

resistance in melanoma-derived brain metastasis<br />

*H . Niessner1 , A . Adam2 , A . Bornemann3 , J . Honegger4 , L . Quintanilla-Fend2 ,<br />

C . Busch1 , J . Bauer1 , L . Just5 , K . Hoek6 , C . Garbe1 , F . Meier1 1Universität Tübingen, Dermatologische Onkologie, Tübingen, Deutschland,<br />

2Universität Tübingen, Pathologie, Tübingen, Deutschland,<br />

3 4 Universität Tübingen, Hirnforschung, Tübingen, Deutschland, Universität<br />

Tübingen, Neurochirurgie, Tübingen, Deutschland, 5Universität Tübingen,<br />

Anatomie, Tübingen, Deutschland, 6Universität Zürich, Dermatologie,<br />

Zürich, Schweiz<br />

Introduction. Brain metastases occur in over 70% of patients with metastatic<br />

melanoma and are the most common cause of death. Current<br />

therapy options are neurosurgery, radiosurgery, whole brain radiation,<br />

chemotherapy and supportive care. The median survival time for mela-<br />

noma patients with brain metastasis ranges from 0.7 to 5 months depending<br />

on age and performance status. Therefore, new therapy strategies<br />

are mandatory.<br />

Methods. In melanoma, activation of the RAF-MEK-ERK and PI3K-<br />

AKT-mTOR signal transduction pathways makes a decisive contribution<br />

to tumor progression and treatment resistance. Ongoing clinical<br />

studies suggest a transient effect of BRAF inhibitors in melanoma brain<br />

metastases. We posed the question as to whether blockade of the RAF-<br />

MEK-ERK or/and PI3K-AKT-mTOR signalling pathways would be a<br />

promising strategy for the treatment of melanoma brain metastases. We<br />

blocked RAF-MEK-ERK or/and PI3K-AKT-mTOR signalling pathways<br />

at different levels using classical and new pharmacological inhibitors<br />

and investigated the effects on viability/proliferation and survival/<br />

apoptosis of >10 newly isolated cell lines derived from melanoma brain<br />

metastases. Furthermore, immunohistochemical analyses of brain metastases<br />

from >10 melanoma patients including matched extracerebral<br />

metastases from lung and liver in the same patients for p-ERK, ERK,<br />

AKT, p-AKT and PTEN were performed.<br />

Results. Growth inhibition was most pronounced with PI3K inhibitors<br />

achieving growth inhibition rates of up to 80%. Moreover, PI3K inhibition<br />

potently induced apoptosis in cerebral metastatic melanoma cells.<br />

Histochemical analysis showed that both cerebral and extracerebral<br />

metastases were highly positive for ERK and AKT. p-ERK was seen<br />

exclusively at the tumor periphery of both cerebral and extracerebral<br />

metastases. Interestingly, most melanoma brain metastases were highly<br />

positive for activated AKT, whereas matched extracerebral metastases<br />

from lung and liver in the same patients were weakly positive or negative<br />

for activated AKT. Moreover, PTEN appeared to be downregulated<br />

in brain metastases.<br />

Conclusion. Together, these findings suggest that activation of AKT is<br />

relevant for the survival and growth of melanoma cells in the brain parenchyma<br />

and that inhibition of PI3K-AKT signalling may be a suitable<br />

strategy to enhance and/or prolong the antitumor effect of BRAF inhibitors<br />

in melanoma brain metastases.<br />

Best of Poster – Hauttumoren<br />

B8 – 0489<br />

Validation of a fresh-tissue based prognostic gene signature in<br />

formalin-fixed, paraffin-embedded melanomas<br />

*G . Brunner1 , L . Suter1 , H .-J . Schulze2 , C . Berking3 , A . Heinecke4 , J . Atzpodien5 1Hauttumorzentrum Hornheide-Münster, Tumorforschung, Münster,<br />

Deutschland, 2Hauttumorzentrum Hornheide-Münster, Dermatologie,<br />

Münster, Deutschland, 3LMU München, Dermatologie und Allergologie,<br />

München, Deutschland, 4WWU Münster, Medizinische Informatik und Bioinformatik,<br />

Münster, Deutschland, 5Hauttumorzentrum Hornheide-Münster,<br />

Onkologie, Münster, Deutschland<br />

Melanoma incidence is rapidly increasing – with a doubling rate of 10–<br />

20 years. Precision and reliability of conventional histopathological and<br />

clinical staging, however, remain limited in predicting clinical outcome.<br />

On the other hand, complementary molecular prognostic markers<br />

are not yet available.<br />

We have recently identified, for the first time, a prognostic gene signature<br />

expressed in fresh-frozen primary melanomas (n=135), which is<br />

associated with overall survival (multivariate Cox regression analysis:<br />

p=0.0004, hazard ratio 3.83). The clinical value of a signature-based risk<br />

score is its ability to identify patients at low risk, not identified by conventional<br />

AJCC staging, and to define risk patients in need of adjuvant<br />

therapies. The purpose of this study was to establish analysis of the signature<br />

genes in formalin-fixed, paraffin-embedded (FFPE) melanoma<br />

tissue and to validate prognostic significance.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

5


Abstracts<br />

We developed a sensitive and robust methodology to analyze and normalize<br />

gene expression in FFPE tissue samples (some of them more<br />

than 20 years old): Total RNA was prepared from FFPE sections matching<br />

the above fresh-frozen primary melanomas (131 out of 135), quality-controlled,<br />

and transcribed into cDNA. Human reference RNA was<br />

included as an internal standard. Following pre-amplification of the<br />

cDNA, expression of the nine signature genes (KRT9, KBTBD10, DCD,<br />

ECG2/SPINK7, PIP, SCGB1D2, SCGB2A2, COL6A6, HES6) and of four<br />

house-keeping genes (18S rRNA, GAPDH, GUSB, BPNT1) was quantified<br />

by real-time PCR using TaqMan assays specific for short amplicons.<br />

Gene expression data were normalized, in two steps, to correct for interassay<br />

technical variability (based on the reference RNA data) as well as<br />

for inter-sample variability of RNA quality (based on the data for the<br />

house-keeping genes). Significance of correlation of FFPE gene expression<br />

data (CT values or estimated mRNA copy numbers) with data from<br />

matched fresh-frozen tissue samples (two-sided t-test) or with patient<br />

overall survival (univariate Cox regression analysis; clinical follow-up<br />

data up to 273 months) was evaluated.<br />

The majority of FFPE primary melanomas (125 out of 131) yielded<br />

mRNA of sufficient quality. In matched pairs of FFPE and fresh-frozen<br />

tissue samples, there was significant correlation of expression of all<br />

nine signature genes. Significance of correlation was higher with CT<br />

values (r=0.19–0.58; p=0.001–0.05) than with estimated copy numbers.<br />

Expression of 7 out of the 9 genes in FFPE melanomas (CT values or<br />

estimated copy numbers) was significantly associated with overall survival<br />

(p=0.0001–0.07).<br />

Thus, our prognostic melanoma gene signature was successfully transferred<br />

from fresh-frozen onto FFPE tissue samples. This greatly increases<br />

clinical applicability of a gene-signature based prognostic risk score<br />

and, in addition, allows the retrospective prognostic analysis of primary<br />

melanomas.<br />

Lungentumoren<br />

Best of Poster – Lungentumoren<br />

B9 – 0198<br />

Hypofractionated image-guided breath-hold radiotherapy of<br />

pulmonary tumors and metastases – clinical results<br />

A . Frauenfeld1 , *J . Boda-Heggemann1 , C . Weiss2 , U . Attenberger3 ,<br />

K . Siebenlist1 , F . Schneider1 , F . Wenz1 , F . Lohr1 1University Medical Center Mannheim, University of Heidelberg, Department<br />

of Radiation Oncology, Mannheim, Deutschland, 2University Medical<br />

Center Mannheim, University of Heidelberg, Abteilung für Medizinische<br />

Statistik, Biomathematik und Informationsverarbeitung, Mannheim,<br />

Deutschland, 3University Medical Center Mannheim, University of Heidelberg,<br />

Institute of Clinical Radiology and Nuclear Medicine, Mannheim,<br />

Deutschland<br />

Purpose. Stereotactic Ablative RadioTherapy (SABR) of stage I–II tumors<br />

has been shown to be a highly effective treatment modality with<br />

low toxicity. It is also a non-invasive therapy option for lung metastases.<br />

Outcome and toxicity were retrospectively evaluated in a single-institution<br />

patient cohort who had undergone hypofractionated image-guided<br />

breath-hold lung SBRT.<br />

Patients and methods. 50 lesions of 43 patients with NSCLC (n=27, St. I–<br />

IV including patients with controlled brain metastases or local relapse)<br />

and lung metastases of various primary tumors (n=16) were consecutively<br />

treated with image-guided breath-hold SBRT. After an initial dose<br />

finding phase, patients were irradiated with a regimen of 5×12 Gy. Dose<br />

calculation was performed with collapsed cone algorithm in 60% of<br />

the lesions. Breath hold was performed with Active Breathing Control<br />

6 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

(ABC®, Elekta), daily imaging with EPIDs and repeat breath hold cone-beam<br />

CT. The data were evaluated retrospectively regarding overall<br />

survival (OS), progression-free-survival (PFS), progression pattern and<br />

local control (LC). Radiation parameters and follow-up CT images were<br />

analysed.<br />

Results. BED2 (Biologically Effective Dose) was 87±20 Gy (median<br />

83 Gy). 30 lesions were treated with a BED2 of 90 Gy. Median follow-up was 15 months. Median OS<br />

was 20 months, without significant difference in patients with primary<br />

lung tumor or metastases. Actuarial 1-year OS-rate was 67%; 2-years OS<br />

rate 43%, respectively. 27% of the patients died on non-disease related<br />

reason (cardiovascular events or infections). Actuarial 1-year PFS-rate<br />

was 42%, 2-years PFS rate 28% without significant difference in patients<br />

with primary lung tumor or metastases. Site of progression pattern was<br />

predominantly distant (60% distant metastases and 32% mediastinal<br />

lymph nodes). Actuarial 1-year LC-rate was 90%, 2-years local control<br />

rate 85%. 95% of the lesions treated with a BED2 >90 Gy was controlled<br />

locally after one year. Local progression was observed in only 5 cases,<br />

mainly in the initial dose finding phase, in one patient with an extremely<br />

large PTV and in one patient with an only retrospectively recognised<br />

pleural invasion of the irradiated lesion. Clinically apparent pneumonitis<br />

(requiring treatment) was present in 23% of the cases. No patient<br />

experienced fatal toxicity.<br />

Conclusions. Despite the unfavorable patient selection, high local control<br />

rates could be achieved. If a reasonably high BED2 can be applied,<br />

image-guided breath-hold SBRT is an effective non-invasive treatment<br />

modality with a high local control rate and relatively low toxicity in<br />

patients with inoperable lung tumors and lung metastases. As disease<br />

progression was mainly outside the treated area, systemic therapy has<br />

to be improved.<br />

Best of Poster – Lungentumoren<br />

B10 – 0290<br />

First screening round results from the <strong>German</strong> component LUSI<br />

of the European trial on the efficacy of multislice CT for the early<br />

detection of lung cancer, and the perspective of the European<br />

trial in view of the results of the US NLST trial<br />

*N . Becker1 , E . Motsch1 , M .-L . Groß1 , C .P . Heussel2 , H . Dienemann3 , P . Schnabel4<br />

, M . Eichinger5 , D .-E . Optazaite5 , M . Puderbach5 , J . Tremper5 , S . Delorme5 1Deutsches Krebsforschungszentrum, Epidemiologie von Krebserkrankungen,<br />

Heidelberg, Deutschland, 2Thoraxklinik, Radiologie, Heidelberg,<br />

Deutschland, 3Thoraxklinik, Chirurgie, Heidelberg, Deutschland, 4Univer sität, Medizin/Pathologie, Heidelberg, Deutschland, 5Deutsches Krebsforschungszentrum,<br />

Radiologie, Heidelberg, Deutschland<br />

After closure of the recruitment period of the <strong>German</strong> Lung <strong>Cancer</strong><br />

Screening Intervention Trial (LUSI) in 2011 the study comprises 4052<br />

participants, randomised into 2029 subjects in the multislice-CT<br />

(MSCT) screening arm and 2023 into the „usual care“ control arm. The<br />

early recall rate for suspicious nodules requiring further examination<br />

ranges currently around 27%. Nineteen lung cancers have been detected<br />

(detection rate 0.9%). Related to all early recalls, the positive predictive<br />

value was about 3%, and related to the immediate recalls about 35%.<br />

The subsequent screening rounds started in October of the years 2008<br />

(2nd round) to 2011 (5th and final round) having led so far to the identification<br />

of eight, two, two and 0 further lung cancers, respectively.<br />

In overall 41 surgical interventions, 15 were benign and 26 malignant.<br />

Among the lung cancers detected in the screening arm 22 were adenocarcinoma,<br />

5 squamous cell carcinoma, two a small-cell carcinoma<br />

and two a carcinoid. One interval cancer has so far been observed (an<br />

adenocarcinoma).


The study contributes to the European multicenter study comprising<br />

studies from the Netherlands and Belgium (NELSON, 15422 participants),<br />

Denmark (4104 participants), Italy (DANTE, 2472; ITALUNG,<br />

3206; MILD, 3997) and <strong>German</strong>y (LUSI, 4052). The scope is to demonstrate<br />

an at least 25% reduction of lung cancer mortality by MSCT. However,<br />

in 2011, the National Lung Screening Trial (NLST) conducted in<br />

the USA, provided after an average follow-up of 6 years a significantly<br />

reduced lung cancer mortality by MSCT screening in comparison to<br />

chest X-ray in the control group. Nevertheless, the European studies decided<br />

to continue their trials and to conduct a first common evaluation<br />

in <strong>2012</strong> for several reasons, e.g.: (a) an early visible benefit can disappear<br />

after prolonged follow-up due to postponement of cause-specific death<br />

in the screening group, (b) harmful side effects, especially overdiagnosis,<br />

cannot be properly assessed in comparison to a control group with<br />

another screening modality (chest X-ray), (c) efficient screening modalities<br />

are still undefined such as, risk-related selection of the appropriate<br />

target population, appropriate management of suspicious nodules,<br />

screening intervals etc, as to be outlined in the presentation.<br />

Best of Poster – Lungentumoren<br />

B11 – 0436<br />

The role of sleeve resections in advanced nodal disease of NSCLC<br />

*J . Schirren1 , M . Eberlein2 , A . Fischer3 , S . Bölükbas1 1Dr . Horst Schmidt Klinik, Thoraxchirurgie, Wiesbaden, Deutschland,<br />

2Carver College of Medicine, Division of Pulmonary, Critical Care and<br />

Occupational Medicine, Iowa City, USA, 3Dr . Horst Schmidt Klinik, Anästhesie<br />

und Intensivmedizin, Wiesbaden, Deutschland<br />

Objective. The aim of this study was to contrast the short-term and longterm<br />

results of sleeve resections in centrally located non-small cell lung<br />

cancer (NSCLC) depending on limited nodal disease (N0/N1, LND)<br />

and advanced nodal disease (N2/N3, AND).<br />

Methods. All NSCLC-patients undergoing sleeve resections for centrally<br />

located NSCLC were reviewed from our prospective database<br />

between January 1999 and December 2008. Patients’ characteristics,<br />

morbidity, mortality, locoregional recurrence, distant recurrence and<br />

survival were analyzed corresponding to LND and AND.<br />

Results. One-hundred seventy sleeve resections out of 213 consecutive<br />

sleeve resections were performed for ventrally located NSCLC (LND:<br />

n=120; AND: n=50). There were no statistically differences between the<br />

both groups for age (LND: 61.8±12.4 vs. 60.8±9.6 years), gender, co-morbidities,<br />

type of sleeve resection (bronchial vs. bronchovascular), number<br />

of dissected lymph nodes (LND: 40.0±12.4 vs. 36.7±14.0), histology<br />

and completeness of resection (LND: 96.7% vs. 98.0%), respectively.<br />

More patients had induction chemotherapy in AND group (p=0.049).<br />

Similar short-term results were monitored with regard to morbidity<br />

rate (LND: 34.2%, AND: 44.0%), secondary pneumonectomy (LND:<br />

1.7%, AND: 4.0%) and mortality rate (LND: 5.0%, AND: 6.0%), respectively.<br />

Better 5-year-survival rate and mean survival were observed in<br />

LND (LND: 80.8 months; AND: 37.7 months; p=0.014; LND: 67%; AND:<br />

42%). In the long-term, more distant metastases were identified in AND<br />

group (26.0% vs. 14.2%, p=0.079) in comparison of identical locoregional<br />

recurrence (LND: 1.7%; AND: 0%). Mean time to the development of<br />

distant metastases was similar (LND: 19.1 months; AND: 12.4 months;<br />

p=0.2) in event of metastazing.<br />

Conclusions. Lymph node involvement is a negative prognostic factor<br />

with regard to long-term survival. Sleeve resections in AND are not associated<br />

with higher morbidity and mortality. Sleeve resections in AND<br />

are correlated with promising long-term survival and unexpected high<br />

local control of the disease as a result of high complete resection rates.<br />

Further investigation for the systemic control of the disease is warranted<br />

because of high rates of distant failure.<br />

Best of Poster – Lungentumoren<br />

B12 – 0475<br />

Prognostic value of estrogen (ESR-1) receptor expression in curatively<br />

resected non-small cell lung cancer (NSCLC)<br />

*W . Brückl1 , J . Ficker1 , A . Hartmann2 , R . Wirtz2 1 3 2 Klinikum Nürnberg, Medizinische Klinik , Nürnberg, Deutschland, Universität<br />

Erlangen, Institut für Pathologie, Erlangen, Deutschland<br />

Background. Despite undergoing complete resection of NSCLC, 33% and<br />

77% of patients with stage IA and IIIA, respectively, die within 5 years.<br />

The benefit of adjuvant chemotherapy (aCTx) is only modest, whereas<br />

such treatment is associated with adverse effects and predictive factors<br />

are of utmost importance. We recently could show a better outcome in<br />

estrogen (ESR-1) receptor expressing tumors in the palliative treatment<br />

of metastatic NSCLC (Brueckl et al., Proc ASCO 2011). The main objective<br />

of this study was to test, whether ESR-1 expression is of prognostic/<br />

predictive value in the curative setting as well.<br />

Methods. Affymetrix microarray data from N=138 non-metastatic<br />

NSCLC patients undergoing curative resection were retrieved from a<br />

data base (Lee et al., Clin <strong>Cancer</strong> Res 2008) and used as a test set to<br />

hypothesize that ESR-1 expression in the tumor is of prognostic value<br />

in curatively resected NSCLC. Baseline data according to ERS-1 status<br />

were compared with the use of chi-square tests and in a multivariate<br />

logistic model including all variables with p values


Abstracts<br />

Lymphome/Leukämien/kindliche Tumoren<br />

Best of Poster – Lymphome/<br />

Leukämien/kindliche Tumoren<br />

B13 – 0266<br />

Safety and efficacy of Nilotinib therapy in CML patients with<br />

Imatinib failure in routine clinical management – follow-up of<br />

the non-interventional TARGET study<br />

*F . Stegelmann1 , J . Dengler2 , P . le Coutre3 , C . Scheid4 , R . Weide5 , T . Illmer6 ,<br />

A . Sauer7 , M . Walter8 , W . Schneider-Kappus9 , M . Kröger10 , A . Distelrath11 ,<br />

G . Stier12 , S . Stern13 , F . Schlegel14 , M . Meincke15 , O . Frank15 , O .G . Ottmann16 1Universitätsklinikum Ulm, Klinik für Innere Medizin III, Ulm, Deutschland,<br />

2Universitätsklinikum Heidelberg, Medizinische Klink, Innere Medizin V,<br />

Heidelberg, Deutschland, 3Charité – Universitätsmedizin <strong>Berlin</strong>, Campus<br />

Virchow Klinikum (CVK), Medizinische Klinik m . S . Hämatologie, Onkologie<br />

und Tumorimmunologie, <strong>Berlin</strong>, Deutschland, 4Uniklinik Köln, Klinik I<br />

für Innere Medizin, Köln, Deutschland, 5Praxisklinik für Hämatologie<br />

und Onkologie Koblenz, Koblenz, Deutschland, 6Gemeinschaftspraxis Hämatologie – Onkologie, Dresden, Deutschland, 7Medizinisches Versorgungszentrum<br />

für Blut- und Krebserkrankungen, Potsdam, Deutschland,<br />

8Praxis für Innere Medizin, Hämatologie und internistische Onkologie,<br />

Paderborn, Deutschland, 9Hämato-Onkologische Schwerpunkt-Praxis<br />

Ulm, Ulm, Deutschland, 10Gemeinschaftspraxis für Ambulante Onkologie,<br />

Bremerhaven, Deutschland, 11MVZ Osthessen, Fachbereich Innere Medizin,<br />

Fulda, Deutschland, 12Internistisch-Onkologische Praxis, Zella-Mehlis,<br />

Deutschland, 13Praxisklinik für integrative Onkologie, Altötting, Deutschland,<br />

14St .-Antonius-Hospital, Akademisches Lehrkrankenhaus der RWTH<br />

Aachen, Eschweiler, Deutschland, 15Novartis Pharma GmbH, BU Oncology,<br />

Nürnberg, Deutschland, 16Klinikum der J .W . Goethe-Universität Frankfurt,<br />

Med . Klinik II – Hämatologie/Onkologie, Frankfurt, Deutschland<br />

Introduction. Nilotinib is a potent and highly selective BCR-ABL inhibitor<br />

with approval for newly diagnosed Ph+ CML patients in CP based<br />

on superior PFS and faster responses vs Imatinib (IM). Nilotinib is also<br />

indicated for CP and AP Ph+ CML pts who failed prior therapy including<br />

IM.<br />

Methods. Follow-up analysis of an observational study of nilotinib in<br />

148 pts with Ph+ IM-resistant or -intolerant CML within clinical practice<br />

in 71 centres in <strong>German</strong>y between Jan 2008 and Nov 2010.<br />

Results. 64.1% of the patients were older than 60 yrs, 7.4% older than 80<br />

yrs (median age 65.8 yrs). 98.6% (1.4%) presented in CP (AP). 95.9% had<br />

a good performance status (ECOG index ≤1). All pts were pretreated<br />

with IM. Further prior drug treatments were chemotherapy (34.5%),<br />

IFN (26.4%), dasatinib (24.3%) and other unspecified drugs (10.8%). Two<br />

patients had received SCT in the past. 64.2% of patients were treated<br />

with nilotinib as 2nd line therapy mostly due to resistance/intolerance<br />

against IM (50.0%/48.0%) or dasatinib (16.2%/6.1%). At initial visit, a<br />

dose of 800 mg nilotinib/d was prescribed in 70.3% (400 mg/d in 25%).<br />

Median duration of nilotinib therapy at the data cut-off for this analysis<br />

was 235 days. Remission status at study entry was 66.2% in CHR,<br />

41.9% in MCyR (missing data =17.6%), 20.9%/9.5% in MMR/CMR. These<br />

responses improved significantly under nilotinib, reaching cumulative<br />

incidences of CHR, MCyR, MMR and CMR of 89.2%, 33.1%, 41.9% and<br />

31.1%, respectively. Of note, cytogenetic and molecular examinations<br />

were frequently not done (e.g. 81.8% and 26.3% after 6 months, respectively).<br />

Overall, the median time to response was 77 days (5–547 days).<br />

Dose reduction or therapy interruption at any time occurred in 18.9%.<br />

In 33.8% nilotinib treatment was stopped prematurely. 73% experienced<br />

at least one AE during the observation period which was considered serious<br />

in 14.2%. Hematologic toxicity was observed in 18.9% of pts (12.2%<br />

with thrombocytopenia), non-hematologic toxicities occurred in 43.2%<br />

8 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

of pts. The most frequently reported AEs were skin reactions including<br />

pruritus (13.5%) and rash (11.5%), gastrointestinal symptoms such as<br />

nausea (8.8%), diarrhoea (7.4%) and upper abdominal pain (6.1%) as well<br />

as headache (11.5%).<br />

Conclusions. These data from routine clinical management support the<br />

use of nilotinib as an efficacious and safe drug for treatment of a broad<br />

population of CML pts with poor response or intolerance to a prior therapy<br />

including IM.<br />

Best of Poster – Lymphome/<br />

Leukämien/kindliche Tumoren<br />

B14 – 0294<br />

Hepatitis B virus infection and risk of lymphoma: results of a<br />

serological analysis within the European case-control study<br />

EPILYMPH<br />

*N . Becker1 , P . Schnitzler2 , P . Boffetta3 , 4 , P . Brennan3 , L . Foretova5 , M . Maynadié6<br />

, A . Nieters7 , A . Staines8 , Y . Benavente9 , P .L . Cocco10 , S . de Sanjosé9 1Deutsches Krebsforschungszentrum, Epidemiologie von Krebserkrankungen,<br />

Heidelberg, Deutschland, 2Universität, Medizin, Heidelberg, Deutschland,<br />

3International Agency for Research on <strong>Cancer</strong>, Epidemiology, Lyon,<br />

Frankreich, 4International Prevention Research Institute, Epidemiology,<br />

Lyon, Frankreich, 5Masaryk Memorial <strong>Cancer</strong> Institute, <strong>Cancer</strong> Epidemiology<br />

and Genetics, Brno, Tschechische Republik, 6University, Registre des<br />

Hémopathies Malignes, Dijon, Deutschland, 7Universität, Molecular Epidemiology,<br />

Freiburg, Deutschland, 8University, School of Nursing, Dublin,<br />

Irland, 9Unitat d’Infeccions i Càncer – Unit of Infections and <strong>Cancer</strong> (UNIC),<br />

Institut Català d’Oncologia – Catalan Institute of Oncology, Barcelona,<br />

Spanien, 10University, Occupational Medicine, Cagliari, Italien<br />

Introduction. Epilymph is a European multicentric epidemiologic casecontrol<br />

study on the etiology of lymphoma comprising 2362 cases and<br />

2458 controls from 6 countries (Czech Republic, France, <strong>German</strong>y, Ireland,<br />

Italy, Spain). After having found a significantly elevated lymphoma<br />

risk among lymphoma cases with a self-reported medical history of<br />

HBV infection based on questionnaire data, we used the study material<br />

to investigate associations between serological indicators of HBV infection<br />

with risk of HL, NHL and specific lymphoma entities.<br />

Methods. We tested HBs-antigen (HBsAg), anti-HBc and anti-HBs to<br />

distinguish between susceptibility, current, past infection and immunity<br />

by vaccination. Statistical analysis was carried out with unconditional<br />

logistic regression.<br />

Results. We found a statistically significant positive association especially<br />

of a past HBV infection with multiple myeloma (MM, OR=1.97,<br />

95%-CL=1.16–3.37). Past HBV infection was also associated with B-CLL<br />

(OR=1.33, 95%-CL=0.82–2.16) and T-NHL (OR=1.59, 95%-CL=0.65–3.90)<br />

which was, however, not statistically significant. Non-significant association<br />

occurred also for current HBV infection and NHL (OR=1.49,<br />

95%-CL=0.65–3.41), B-NHL (OR=1.58, 95%-CL=0.69–3.64) and diffuse<br />

large B-cell lymphoma (DLBCL, OR=1.50, 95%-CL=0.47–4.82). Subjects<br />

having HBV infection self-reported were serological positive in 75% of<br />

cases and 80% of controls. For vaccination, the corresponding figures<br />

were 49% and 54%, respectively.<br />

Conclusion. The present results support previous reports of an association<br />

between a history of HBV infection with an elevated lymphoma<br />

risk and add multiple myeloma to the list of potentially virus-associated<br />

lymphoma entities. Chronic antigen stimulation and immune response<br />

to a past but not fully cleared HBV infection may be an explanation for<br />

the association.


Best of Poster – Lymphome/<br />

Leukämien/kindliche Tumoren<br />

B15 – 0309<br />

Retrospective analysis of treatment-related toxicities and outcome<br />

in high-risk Ewing sarcoma patients receiving Treosulfan or<br />

Busulfan-based high-dose chemotherapy with autologous stem<br />

cell transplantation*<br />

*H . Jürgens1 , U . Dirksen1 , S . Jabar1 , K . Ehlert1 , J . Boos1 , P . Bader2 , R . Ladenstein3<br />

, A . Ranft1 1University Hospital, Pediatric Hematology and Oncology, Muenster,<br />

Deutschland, 2Johann Wolfgang Goethe University Medical Center,<br />

Frankfurt, Deutschland, 3 3Children‘s <strong>Cancer</strong> Research Institute (CCRI), Wien,<br />

Österreich<br />

Objective. Busulfan (BU), in combination with melphalan (MEL), highdose<br />

chemotherapy (HDC) with autologous stem cell transplantation<br />

is widely used in consolidation treatment of poor-prognosis Ewing sarcoma<br />

patients. Treosulfan (TREO) has been newly introduced recently<br />

into the treatment protocols. We analyzed treatment-related toxicities<br />

and outcome in patients treated with BU-MEL or TREO-MEL HDC according<br />

to the EURO-E.W.I.N.G.99 (EE99) protocol of the <strong>German</strong> Society<br />

of Pediatric Hematology and Oncology (GPOH) from 1998–2009.<br />

Methods. 157 patients were identified with full records of BU-based<br />

HDC, administrated PO in 113 patients and IV in 44 patients, and 44 patients<br />

with IV TREO-based HDC. BU-MEL was given in 31.8% (n=50)<br />

according to high-risk localized disease mainly for poor response to<br />

initial chemotherapy (R2loc), in 25.5% (n=40) for pulmonary metastases<br />

(R2pulm), and in 42.7% (n=67) for primary mainly skeletal dissemination<br />

(R3). TREO-MEL patients had a more progressed risk profile<br />

(R2loc: 6; 13.6%; R2pulm: 5; 11.4%; R3: 33; 75%; p=0.001). HDC toxicity<br />

was analyzed by descriptive statistics according to modified CTC toxicity<br />

grade scales of the EE99 protocol. Outcome was analyzed descriptively<br />

by event-free survival (EFS) and overall survival (OS) controlled<br />

for risk factors by multivariate regression analysis.<br />

Results. Grade 3 and 4 ratings occurred in 654 of 2500 toxic episodes<br />

(26.2%) in BU-MEL HDC (PO: 27.3%; IV: 23.5%), and in 163 of 842 toxic<br />

episodes (19.4%) in TREO-MEL HDC (vs. BU-MEL PO+IV: p10% in total in single scales were observed in TREO-MEL compared<br />

to PO+IV BU-MEL and compared to IV BU-MEL: WBC (vs. BU-MEL<br />

PO+IV: p=.001; IV only: p=.016); granulocytes (p=.016; p=.120); platelets<br />

(p=.016; p=.114); infection (p=0.020; p=0.075); stomatitis (p12,500 steps/day)<br />

while 5% had to be considered as sedentary (100 steps/minute), only 8 of<br />

118 (7%) patients reached the time to be spend on this level of activity as<br />

recommended for an active lifestyle (i.e., 30 min/day). The TESS score<br />

(0–100) for tumors located in upper extremity was 90.2 (range 69.6–100;<br />

SD=11.1), and for lower extremity tumors 88.9 (range 40.8–100; SD=12.1)<br />

indicating good function following multimodal tumor treatment was<br />

achieved.<br />

Conclusions. These preliminary data indicate that patients after Ewing<br />

sarcoma treatment can reach step activity levels similar to healthy<br />

adults. However, most patients stay on a rather low intensity of activity.<br />

SAM can be used to capture activity levels in long-term survivors of<br />

Ewing sarcoma. It may be advantageous to consider the use of a combination<br />

of outcome measures, including SAM, for objective functional<br />

mobility assessment. Parallel recording of physical activity (SAM) and<br />

TESS provides a better measure reflecting the complex situation of the<br />

patients by combining objective and subjective parameters. The study<br />

is being continued to include all long-term Ewing sarcoma survivors<br />

initially diagnosed between 1980 and 2009.<br />

*supported by Bundesministerium für Bildung und Forschung (BMBF)<br />

01ER0807 .<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

9


Abstracts<br />

Mammakarzinom/gynäkologische Tumoren<br />

Best-of-Poster – Mammakarzinom/<br />

gynäkologische Tumoren<br />

B17 – 0067<br />

Phase II-study with a targeted cytotoxic LHRH- analog (AEZS-<br />

108) in patients with LHRH – receptor positive endometrial<br />

cancer: Protocol AGO-Gyn 5, AGO-Study Group<br />

*G . Emons1 , S . Tomov2 , J . Sehouli3 , P . Harter4 , P . Wimberger5 , L .C . Hanker6 ,<br />

A . Stähle7 , A . Hristamian8 , F . Hilpert9 , M .W . Beckmann10 , P . Dall11 , H . Sindermann11<br />

, C . Gründker1 1Georg August Universität, Klinik für Gyn . und Geburtshilfe, Göttingen,<br />

Deutschland, 2University Hospital, Pleven, Bulgarien, 3Charité, <strong>Berlin</strong>,<br />

Deutschland, 4HSK, Wiesbaden, Deutschland, 5University Hospital, Essen,<br />

Deutschland, 6University Hospital, Frankfurt, Deutschland, 7Karlsruhe, <strong>German</strong>y, Deutschland, 8Plovdiv, Bulgarien, Bulgarien, 9University Hospital,<br />

Kiel, Deutschland, 10University Hospital, Erlangen, Deutschland, 11Aeterna Zentaris, Frankfurt, Deutschland<br />

Background. Endometrial cancers (EC) commonly express receptors for<br />

luteinizing homone releasing hormone (LHRH ). AEZS-108 is a targeted<br />

cytotoxic drug where [ D-Lys(6)]-LHRH is linked to doxorubicin.<br />

We assessed efficacy and toxicity of AEZS-108 in endometrial cancer.<br />

Methods. Patients with LHRH-receptor positive advanced (stages FIGO<br />

III or IV; n=27) or recurrent endometrial cancer (n=16) received AEZS-<br />

108 (267 mg/m2 3-weekly) for 6 cycles. At least 1 measurable lesion was<br />

required at baseline. Independent radiologic review was performed. Response<br />

rate per RECIST was defined as primary endpoint. Secondary<br />

endpoints were sefaty, time-to-progression (TTP) and overall survival<br />

(OS).<br />

Results. 43 patients with median age of 68 years entered the study. Percentages<br />

of tumor cells staining for LHRH-R ranged 30–90%. 31 patients<br />

showed endometrioid and 8 serous histological subtype. Prior<br />

treatment included surgery (n=42), radiotherapy (n=29), chemotherapy<br />

(n=9) and hormonal therapy (n=11). 62.8% received AEZS-108 for<br />

6 courses. One patient was retreated at reduced dose. Possibly drug related<br />

adverse events, except for hematologic toxicity grade 3/4 (rapidly<br />

reversible neutropenia: 60%, anemia: 5%), was commonly limited to<br />

CTCAE grade 1/2. There was no evidence of cardiotoxiciy. One patient<br />

stopped therapy because of recurrent anemia. 12 responses were documented<br />

(2 CR, 10 PR and 17 SD). After prior chemotherapy, 1 CR, 1 PR<br />

and 2 SDs were assessed. Median TTP was 30 weeks and median OS<br />

62 weeks.<br />

Conclusions. A promising clinical benefit rate of 74% was shown. OS after<br />

single agent AEZS-108 is similar to that reported for modern triple<br />

combination chemotherapy, but as achieved with distinctly lower toxicity.<br />

10 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Best of Poster – Mammakarzinom/<br />

gynäkologische Tumoren<br />

B18 – 0117<br />

Pegylated liposomal doxorubicin and carboplatin (C-PLD) versus<br />

paclitaxel and carboplatin (C-P) in platinum-sensitive ovarian<br />

cancer (OC) patients (pts): Treatment at recurrence and overall<br />

survival (OS) final analysis from CALYPSO phase III GCIG trial<br />

*C . Kurzeder1 , W . Meier2 , C . Jackisch3 , A . Staehle4 , A . Burges5 , J . Pfisterer6 ,<br />

A . Belau7 , G . Emons8 , U . Canzler9 , W . Schroeder10 , J . Sehouli11 , A . du Bois1,11 ,<br />

P . Wimberger12 , B . Schmalfeldt13 , S . Mahner14 , U . Wagner15 , E . Pujade-Lauraine16<br />

1Kliniken Essen Mitte, Evang . Huyssens-Stiftung/Knappschaft GmbH, Gynäkologie<br />

& Gynäkologische Onkologie, Essen, Deutschland, 2Evangelisches Krankenhaus Düsseldorf, Düsseldorf, Deutschland, 3Klinik für Gynäkologie<br />

und Geburtshilfe Offenbach, Offenbach, Deutschland, 4Frauenarztpraxis, Karlsruhe, Deutschland, 5Klinikum der Universität München, Klinik und<br />

Poliklinik für Frauenheilkunde und Geburtshilfe, München, Deutschland,<br />

6Städt . Klinikum Solingen GmbH, Klinik für Frauenheilkunde und<br />

Geburtshilfe, Solingen, Deutschland, 7Universität Greifswald, Klinik und<br />

Poliklinik für Frauenheilkunde und Geburtshilfe, Greifswald, Deutschland,<br />

8 9 Universitätsfrauenklinik Göttingen, Göttingen, Deutschland, Klinik und<br />

Poliklinik für Frauenheilkunde und Geburtshilfe Universitätsklinikum Carl<br />

Gustav Carus, Dresden, Deutschland, 10Klinikum Bremen Mitte, Frauenklinik,<br />

Bremen, Deutschland, 11Charité Campus Virchow-Klinikum, Klinik<br />

für Gynäkologie, <strong>Berlin</strong>, Deutschland, 12Universitätsklinikum Essen, Klinik<br />

für Frauenheilkunde und Geburtshilfe, Essen, Deutschland, 13Frauenklinik und Poliklinik der Technischen Universität München, München, Deutschland,<br />

14Universitätsklinikum Hamburg-Eppendorf, Klinik und Poliklinik für<br />

Gynäkologie, Hamburg, Deutschland, 15Universitätsklinikum Gießen u .<br />

Marburg GmbH, Standort Marburg, Klinik für Gynäkologie, Gynäkologische<br />

Endokrinologie und Onkologie, Marburg, Deutschland, 16Hopital Hotel-Dieux,<br />

Paris, Frankreich<br />

Background. CALYPSO is a large international randomized phase III<br />

trial comparing CPLD and C-P in pts with OC in late relapse. Results<br />

of the progression-free survival (PFS), the primary endpoint, suggest<br />

a benefit in pts treated with C-PLD with a hazard ratio (HR) of 0.82<br />

(p=0.005). Overall severe non-hematologic toxicity (36.8% vs 28.4%;<br />

p


Best of Poster – Mammakarzinom/<br />

gynäkologische Tumoren<br />

B19 – 0279<br />

Oncofertility; Xenotransplantation of cryopreserved ovarian<br />

tissue from patients with ovarian tumors into SCID mice – no<br />

evidence of malignant cell contamination<br />

*A . Müller1 , L . Lotz1,2 , M . Montag1,2 , H . van der Ven2 , M . von Wollf2,3 , I . Hoffmann1<br />

, D . Wachter4 , M . Beckmann1 , R . Dittrich1 1 2 Universitätsklinikum Erlangen, Frauenklinik, Erlangen, Deutschland, Universitätsklinikum<br />

Bonn, Frauenklinik, Bonn, Deutschland, 3Inselspital Bern,<br />

Frauenklinik, Bern, Schweiz, 4Universitätsklinikum Erlangen, Pathologisches<br />

Institut, Erlangen, Deutschland<br />

Background. There are still many unanswered questions regarding the<br />

safety of ovarian tissue retransplantation in cancer patients, due to the<br />

potential risk that malignant cells in the frozen tissue may lead to recurrence<br />

of the primary disease after transplantation. This study examined<br />

the possible presence of residual malignant cells in ovarian cortex from<br />

patients with ovarian tumors after xenografting of the ovarian tissue<br />

into severe combined immunodeficiency (SCID) mice.<br />

Methods. The ovarian cortex tissue was obtained during surgical laparoscopy<br />

or unilateral/bilateral oophorectomy. Before cryopreservation,<br />

the ovarian cortex was examined histologically to ensure that a sufficient<br />

quantity of primordial follicles had been obtained and to exclude<br />

involvement of the tissue by malignancy. Freezing of the ovarian tissue<br />

was undertaken in accordance with three similar slow freezing protocols.<br />

The ovarian tissue was transplanted into immunodeficient (SCID)<br />

mice in an intramuscular pocket in the neck muscle. Twenty-four weeks<br />

after transplantation, the grafts were recovered and hematoxylin-eosin<br />

stains were performed. In addition, freshly cut sections were stained<br />

with antibodies against pancytokeratin (monoclonal antibody KL1).<br />

Results. All of the patients had a normal follicular distribution relative<br />

to their age, and light microscopy showed no evidence of malignant<br />

cells in the ovarian tissues prior to transplantation, even in patients with<br />

bilateral ovarian carcinoma. All of the animals remained in good health<br />

throughout the study and none of the grafts resulted in recurrences.<br />

Nor did any of the mice showed macroscopically metastasis. The serial<br />

sections from human ovarian grafts had a normal histological appearance.<br />

No carcinoma cells were seen in any of the H&E-stained slides<br />

examined or in any of the slides with antibodies against cytokeratins.<br />

Conclusion. Ovarian transplantation appears to be a feasible consideration<br />

in young female patients with ovarian tumors. The negative<br />

findings do not rule out malignant cell contamination in the ovarian<br />

tissue. A larger number of tissue fragments would increase the validity<br />

of these preliminary results and more sensitive methods may be necessary<br />

for assessment of possible micrometastases. In order to increase<br />

the safety of the procedure, ovarian tissue harvesting and re-implantation<br />

should take place in the setting of clinical trials with clearly defined<br />

methods, objectives, and end points.<br />

Best of Poster – Mammakarzinom/<br />

gynäkologische Tumoren<br />

B20 – 0318<br />

Prospective comparison of risk assessment tools in early breast<br />

cancer (Recurrence Score, uPA/PAI-1, central grade, and luminal<br />

subtypes): final correlation analysis from the phase III WSG-Plan<br />

B trial<br />

*O . Gluz1 , H . Kreipe2 , T . Degenhardt1 , R . Kates1 , C . Liedtke1,3 , M . Christgen2 ,<br />

M . Clemens4 , S . Markmann5 , C . Uleer6 , D . Augustin7 , S . Shak8 , C . Thomssen9 ,<br />

U . Nitz1,10 , N . Harbeck1,11 1Westdeutsche Studiengruppe, Mönchengladbach, Deutschland,<br />

2 3 MHH Hannover, Hannover, Deutschland, Uniklinik Münster, Münster,<br />

Deutschland, 4Klinikum Mutterhaus der Borromäerinnen, Trier, Deutschland,<br />

5Uniklinikum Südstadt, Rostock, Deutschland, 6Gynäkologisch onkologische Praxis, Hildesheim, Deutschland, 7Klinikum Deggendorf,<br />

Degendorf, Deutschland, 8Genomic Health Inc ., Redwood City, Vereinigte<br />

Staaten von Amerika, 9Uniklinikum Halle/Saale, Halle/Saale, Deutschland,<br />

10 11 EVK Bethesda, Mönchengladbach, Deutschland, Uniklinik Köln, Köln,<br />

Deutschland<br />

Background. Both the Recurrence Score® (RS) multi-gene assay and<br />

invasion factors uPA/PAI-1 are recommended by guidelines (ASCO,<br />

AGO) for decision support regarding adjuvant chemotherapy in patients<br />

with early breast cancer (BC). Here, we present the final WSG-<br />

Plan B trial correlation analysis of these risk assessment tools.<br />

Methods. Plan B trial (evaluating anthracyline-free adjuvant chemotherapy,<br />

6×TC, vs. 4×EC-4×DOC in HER2-negative BC; n=2.448 to<br />

be randomized for chemotherapy). RS has been used as the selection<br />

criterion for chemotherapy vs. endocrine therapy alone in HR+ BC (if<br />

RS25 (21%). In 257 patients<br />

with 0–3 involved LN, chemotherapy was omitted based on RS results<br />

(12.3% of patients after amendment). By the last interim analysis in <strong>February</strong><br />

2011, data on central grade are available in 1509 patients and<br />

Ki-67 in 592 patients. An only moderate positive correlation was observed<br />

between Ki-67 and RS (Spearman’s coefficient rs =0.336, p


Abstracts<br />

high-risk according to uPA/PAI-1, Ki-67 or central grade. Further follow-up<br />

of the WSG-Plan B trial will clarify the clinical significance of<br />

these findings regarding patient outcomes.<br />

Molekulare Onkologie<br />

Best of Poster – Molekulare Onkologie<br />

B21 – 0208<br />

Transient telomere dysfunction induces chromosomal instability<br />

and carcinogenesis in telomerase-proficient mice<br />

*D . Hartmann1,2 , Y . Begus-Nahrmann2 , P . Eshraghi2 , P . Schirmacher3 , H .-<br />

W . Lee4 , A . Lechel2 , K .L . Rudolph2 1Chirurgische Klinik und Poliklinik, Klinikum rechts der Isar, München,<br />

Deutschland, 2Institut für Molekulare Medizin und Max-Planck-Forschungsgruppe<br />

für Stammzellalterung, Universität Ulm, Ulm, Deutschland, 3Institut für Pathologie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland,<br />

4Department of Biochemistry, College of Science, Yonsei University, Seoul,<br />

Korea, Republik<br />

Introduction. A current concept indicates that telomere dysfunction can<br />

increase tumor initiation by induction of chromosomal instability, but<br />

initiated tumor cells need to reactivate telomerase for genome stabilization<br />

and tumor progression. However, this concept has not been proven<br />

in vivo since appropriate mouse models were lacking.<br />

Methods. Here, we analyzed hepatocarcinogenesis (i) in a novel mouse<br />

model of inducible telomere dysfunction with wildtype telomerase, (ii)<br />

in telomerase knockout mice with chronic telomere dysfunction (G3<br />

mTerc-/-), and (iii) in wildtype mice with functional telomeres and telomerase.<br />

Results. Transient or chronic telomere dysfunction enhanced the rates<br />

of chromosomal aberrations in developing HCCs, but increases in tumorigenesis<br />

compared to wild-type mice occurred only in telomeraseproficient<br />

mice. In contrast to mTerc-/- tumors, telomerase-proficient<br />

tumors that experienced transient telomere dysfunction retained the<br />

capacity to minimize DNA damage and exhibited elevated rates of tumor<br />

cell proliferation compared to wild-type tumors.<br />

Conclusion. Together, these data provide the first in vivo evidence that<br />

transient telomere dysfunction promotes chromosomal instability and<br />

carcinogenesis in a telomerase-proficient background.<br />

Best of Poster – Molekulare Onkologie<br />

B22 – 0284<br />

Inhibition of Hsp90 impairs hexokinase (HXK-II) activity by disrupting<br />

its interactions with voltage dependent anion channels<br />

(VDAC)<br />

*M .E . Mycielska1 , C . Moser1 , C . Wagner1 , E . Scheiffert1 , E .K . Geissler1 ,<br />

H .J . Schlitt1 , S .A . Lang1 1Universitätsklinikum Regensburg, Experimentelle Chirurgie, Regensburg,<br />

Deutschland<br />

Background. Glycolysis is the predominant metabolic pathway in cancer<br />

cells (Warburg effect) with hexokinase II (HXK II) as its crucial<br />

enzyme. Due to ATP requirements, this enzyme has to be attached to<br />

VDACs in the mitochondrial membrane. In addition, overexpression of<br />

the molecular chaperone heat-shock protein 90 (Hsp90) in cancer cells<br />

has been described. Interestingly, TOM complex, responsible for import<br />

of proteins (e.g. VDACs) into mitochondria, is an Hsp90 client protein.<br />

12 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Therefore, we hypothesised that targeting Hsp90 would affect localisation<br />

of HXK II in cancer cells through changes in VDAC import.<br />

Methods. Human gastric and pancreatic cancer cell lines (TMK1, Mia-<br />

PaCa2) were used to evaluate the effects of Hsp90 inhibitor 17-DMAG<br />

(17-(dimethylaminoethylamino)-17-demethoxygeldanamycin) on cancer<br />

cell metabolism. In vitro, localisation and expression of HXK II and<br />

VDAC protein were determined using Western blotting and immunocytochemistry.<br />

Spectrophotometric technique was employed to evaluate<br />

enzyme activity. In vivo, murine Panc02 pancreatic adenocarcinoma<br />

cells were used in subcutaneous tumor model.<br />

Results. Overall hexokinase activity in the mitochondrial fraction was<br />

decreased by 25±8.1% and 57±9.7% (n=5; p=0.03–0,04) in cells and tissues<br />

when treated with 17-DMAG compared to control conditions, whilst<br />

its activity in the cytoplasmic fractions did not differ (p>0.05). Staining<br />

of HXK II, VDAC and mitochondria in the cells showed large areas of<br />

colocalisation upon control conditions. Interestingly, colocalisation<br />

was significantly reduced when cells were treated with the Hsp90 inhibitor.<br />

Furthermore, treatment with 17-DMAG resulted in a decreased<br />

expression of HXK II in the mitochondrial fraction in cells and tissues.<br />

Determination of the expression of HXK I and III in cancer cells and<br />

tissues showed a slight decrease in HXK III expression in cytoplasmic<br />

fraction whilst there was no change in mitochondrial fraction in either<br />

protein.<br />

Conclusion. Results so far show that targeting Hsp90 affects glucose metabolism<br />

in cancer cells via inhibition of VDAC incorporation into the<br />

mitochondrial membrane and in consequence disabling HXK II-VDAC<br />

binding. Hsp90 inhibitors might, therefore, play a role in treatment<br />

concepts targeting the Warburg effect in human cancer.<br />

Best of Poster – Molekulare Onkologie<br />

B23 – 0337<br />

Genetic analysis for SDH mutations (SDH-B, SDH-C and SDH-D) in<br />

paraganglioma patients<br />

*T . Cohnert1 , J . Fruhmann1 , S . Koter1 , A . Baumann1 , J . Geigl2 1Medizinische Universität Graz, Klin . Abt . für Gefäßchiurgie, Graz,<br />

Österreich, 2Medizinische Universität Graz, Institut für Humangenetik, Graz,<br />

Österreich<br />

Introduction. Paraganglioma represent rare tumours of the head and<br />

neck. They originate from the neural crest cells and can occur from the<br />

skull base to the pelvic floor. Many cases are sporadic. However, the hereditary<br />

cases are most often seen in Von Hippel Lindau Disease, MEN 2<br />

or neurofibromatosis. Recently succinate dehydrogenase mutations<br />

(SDH) have been described in paraganglioma and phaechromocytoma<br />

patients.<br />

Patients and methods. 51 patients (pts.) were operated on 60 Paragangliomas<br />

(PGL) of the neck (carotid body tumors) between January 1988<br />

and July 2011. Prospectively collected clinical data were analyzed retrospectively.<br />

In 2006 genetic analyses were started for succinate dehydrogenase<br />

mutations (SDH; SDH-B, SDH-C and SDH-D). Follow-up was<br />

completed. All patients were contacted and genetic testing as well as genetic<br />

family counselling were offered. Statistical data are given as mean<br />

values and standard deviation.<br />

Results. 51 pts. (36 female, 15 male) were operated at a mean age of<br />

53.9+16.6 years (range 24–80 years). In 9 pts. (4 female, 5 male) there<br />

were bilateral tumors. After a mean follow-up of 94 months (range<br />

1–263 months = 21 years 11 months) 6 pts. had died. 45 pts. were alive,<br />

3 pts. did not agree to genetic testing and one patient was currently not<br />

available for testing (moved abroad). Of the tested 41 pts. no mutation<br />

was detected in 20 pts. (17 female, 3 male). In 21 pts. a total of 14 SDH-D<br />

mutations, 2 SDH-B mutations and 1 SDH-C mutation were found. Additional<br />

4 pts. showed abnormalities in SDH-C that need further investigation.<br />

In summary in 17 of 41 pts. (17/41=41.5%) SDH mutations were


confirmed. In all 9 patients with bilateral tumors SDH-D mutations<br />

were detected.<br />

Conclusions. Long-term survival after surgical removal of paraganglioma<br />

of the neck is not limited. Genetic testing is mandatory in patients<br />

with bilateral tumors or positive family history and strongly recommended<br />

in all other PGL patients. When a SDH mutation is diagnosed,<br />

regular clinical and ultrasound investigations, MRI of the head and<br />

neck, thorax, abdomen and pelvis are recommended for diagnosis or<br />

exclusion of multiple tumor localizations as well as phaechromocytoma.<br />

In addition genetic exploration of patients’ families and counselling<br />

should be offered.<br />

Best of Poster – Molekulare Onkologie<br />

B24 – 0480<br />

Two novel splice variants of the transcriptional co-repressor<br />

Daxx with different p53-regulating properties<br />

N . Wethkamp1 , S . Funke1 , C .V . Suschek2 , E . Grinstein3 , S . Heikaus1 , H .E . Gabbert1<br />

, *C . Mahotka1 1Heinrich Heine Universität – Klinikum, Institut für Pathologie, Düsseldorf,<br />

Deutschland, 2Heinrich Heine Universität – Klinikum, Klinik für Unfallchirurgie,<br />

Düsseldorf, Deutschland, 3Heinrich Heine Universität – Klinikum,<br />

Klinik für Kinder-Onkologie, -Hämatologie und -Immunologie, Düsseldorf,<br />

Deutschland<br />

Aims. Deregulation of apoptosis is involved in several diseases including<br />

cancer, characterized by an abnormally prolonged cell survival.<br />

The ubiquitously expressed protein Daxx is implicated in apoptosis but<br />

whether its function is pro- or anti-apoptotic is still controversially discussed.<br />

Daxx is involved in transcriptional control of several genes and<br />

it comprises domains including a regulatory C-terminus which is responsible<br />

for the interaction with numerous proteins such as p53, PML,<br />

or HSP27.<br />

Methods. RT-PCR, expression cloning, retroviral transfections, confocal<br />

fluorescence microscopy, western blotting, immunoprecipitations,<br />

flow cytometry, luciferase reporter gene assays, apoptosis assays, etc.<br />

Results. Here we describe the identification and characterization of two<br />

novel variants of Daxx termed Daxx-β and Daxx-γ which are generated<br />

by alternative splicing. Alternative splicing results in a truncated<br />

regulatory C-terminus in both proteins. As a consequence, Daxx-β<br />

and Daxx-γ show a markedly decreased affinity to PML, which in turn<br />

is associated with a different subnuclear localization of these proteins<br />

compared to Daxx. While Daxx is mainly localized to PMLoncogenic<br />

domains (PODs) Daxx-β and Daxx-γ display a distinct distribution pattern.<br />

Furthermore, Daxx-β and Daxx-γ show a decreased affinity to p53<br />

also due to the truncated C-terminus. We provide evidence that the p53<br />

recruitment into PODs is Daxx isoform dependent. The decreased affinity<br />

of Daxx-β/-γ to p53 and PML results in a diffuse localization of p53<br />

throughout the nucleus. In contrast to Daxx, Daxx-β and Daxx-γ are<br />

unable to repress p53-mediated transcription.<br />

Conclusion. Therefore, alternative splicing of Daxx as a regulator of p53regulated/dependent<br />

gene expression might indicate an additional level<br />

in the cellular apoptosis network.<br />

Palliativmedizin/ Supportivtherapie<br />

Best of Poster – Palliativmedizin/ Supportivtherapie<br />

B25 – 0058<br />

Randomized placebo-controlled double-blind study of modified<br />

methylphenidate on cancer-related fatigue (CRF)<br />

*M .E . Heim1 , S . Kuhnt2 , R . Schwarz2 , W . Abenhardt3 , B . Lathan4 , K . Verpoort5 ,<br />

S . Siehl6 , C . Ose7 , A . Engels8 , J .-U . Rüffer9 1 2 Universität Göttingen, Rosdorf, Deutschland, Universität Leipzig, Leipzig,<br />

Deutschland, 3Onkologische Praxis, München, Deutschland, 4Onkologische Praxis, Dortmund, Deutschland, 5Onkologische Praxis, Hamburg, Deutschland,<br />

6Onkologische Praxis, Kassel, Deutschland, 7Universitätsklinikum Essen, Inst . f . Med . Informatik, Biometrie u . Epidemiologie, Essen, Deutschland,<br />

8Medice Pütter GmbH, Iserlohn, Deutschland, 9Deutsche Fatigue<br />

Gesellschaft, Köln, Deutschland<br />

Introduction. CRF is the most prevalent symptom of cancer patients<br />

(pts) following treatment, can persist for months or even years, and significantly<br />

reduces usual functioning and health related quality of life.<br />

There is no standard treatment for CRF, initially a comprehensive assessment<br />

and the treatment of possible causative factors, such as anemia<br />

or hypothyroidism is recommended. Nonpharmacological treatments,<br />

such as individualized exercise programs, psychoeducational and cognitive-behavioral<br />

interventions are the backbone of CRF therapy. Pharmacological<br />

treatment with the psychostimulant methylphenidate showed<br />

inconclusive results in several phase II and III studies.<br />

Patients and methods. Tumor pts without active disease suffering from<br />

CRF (MFI-score >40) were randomized into a treatment and a placebo<br />

group. The treatment duration was 3 weeks with modified release methylphenidate<br />

starting with 20 mg in the 1st week, and dose escalation<br />

to 40 mg, and 60 mg in the 2nd and 3rd week in case of inadequate<br />

treatment effect. Treatment results were evaluated by patient reported<br />

outcome measures with MFI, EORTC-QLQ-C30, HADS, and by the<br />

clinical global impression (CGI) of the physician at baseline, week 3 and<br />

6, and for MFI and CGI additionally at week 2 and 3. Primary endpoint<br />

was the general fatigue in the MFI. A total of 67 pts (46 women, 21 men,<br />

mean age 48 years) were randomized, 53 could be evaluated, 25 in the<br />

treatment, 28 in the placebo group. Mean fatigue duration was 4 and<br />

2.5 years.<br />

Results. In the intention to treat analysis there was a mean reduction<br />

of the general fatigue score of the MFI of 22 points (verum) and 13 points<br />

(placebo), in the per protocol analysis of 25 and 16 (not significant).<br />

There was a significant difference in the CGI for therapeutic efficacy in<br />

favor of methylphenidate. Single pts had an impressive advantage of the<br />

treatment with methylphenidate. No significant differences could be<br />

observed for anxiety and depression, and the EORTC-subscales, except<br />

for the cognitive function subscale, which was significantly improved<br />

in the verum group.<br />

Conclusion. In accordance with other studies we could not observe<br />

a significant improvement of CRF in the MFI with methylphenidate.<br />

However significant better results for the intervention group could be<br />

observed in the therapeutic efficacy in the CGI and for the cognitive<br />

function in the EORTC-QLQ-C30. Differences in both groups and subgroup<br />

analysis will be discussed to explain the results.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

13


Abstracts<br />

Best of Poster – Palliativmedizin/ Supportivtherapie<br />

B26 – 0071<br />

Occupational rehabilitation after partial laryngectomy<br />

*D . Wollbrück1 , H . Danker1 , E .F . Meister2 , A . Meyer1 1Universität Leipzig, Medizinische Fakultät, Medizinische Psychologie und<br />

Medizinische Soziologie, Leipzig, Deutschland, 2Klinikum St . Georg, HNO-<br />

Klinik, Leipzig, Deutschland<br />

Purpose. Improvements in early detection and treatment of laryngeal<br />

cancer have let to an increase of numbers of cancer survivors. Against<br />

this background two questions arise for patients after partial laryngectomy:<br />

I. How does the work status of patients with partial laryngectomy<br />

change? II. Which factors are associated with a successful occupational<br />

rehabilitation?<br />

Methods. Since 2007, all patients in Middle <strong>German</strong>y, who underwent<br />

a partial laryngectomy due to laryngeal carcinoma, were contacted in<br />

a multi-centre longitudinal study. Patients were questioned at different<br />

time points (t1= preoperative; t2=2 weeks after partial laryngectomy;<br />

t3=12 weeks after operation; t4=1 year postoperative). For this presentation,<br />

all patients were included, who were interviewed until December<br />

2010 and were under the age of 65 at t1 (n=38). Instruments used were<br />

the Quality of Life Questionnaire of the European Organization of Research<br />

and Treatment of <strong>Cancer</strong> (EORTC QLQ-C30), single questions<br />

(importance of having a job) and sociodemographic (age, professional<br />

career) and medical data (tumour stage; use of rehabilitation).<br />

Results. I. Employment rate one year postoperatively (40%) has decreased<br />

in comparison to preoperatively (63%), while the group of patients<br />

who are no longer available for the job market (due to retirement annuity<br />

or disability pension) has increased (from 21% at t1 to 36% at t4). All<br />

patients who worked one year post surgery had already been working<br />

preoperatively. The perceived extent of limitation in the context of work<br />

and daily activities has increased (from 26% at t1 to 84% at t4). II. The<br />

return to work one year postoperatively is correlated with the professional<br />

career (Rho=0.41*, p=0.04). All other factors show no significant<br />

correlation.<br />

Conclusion. Blue-collar workers return to work significantly less often<br />

than white-collar/self-employed workers. Being able to re-enter the<br />

workforce and to take an active part in the occupational life should be<br />

both a matter of the affected patients and of public interest. The introduced<br />

findings could contribute to further discussion on how to adapt<br />

the specific work situations of blue-collar workers so that a return, if not<br />

to the same job, at least to an alternative job may be within the realms of<br />

possibility for the affected patients.<br />

Best of Poster – Palliativmedizin/ Supportivtherapie<br />

B27 – 0145<br />

Somato-psychosocial caring program to improve symptoms<br />

in cancer patients with stem cell transplantation (HSCT) – first<br />

results of a prospective non randomized intervention study<br />

*H . Schmidt1 , P . Jahn1,2 , S . Böse1 , A . Bauer1 , A . Lau3 , O . Stoll3 , H .-J . Schmoll2 ,<br />

C . Mauz-Körholz2 , O . Kuß4 , M . Landenberger1 1MLU Halle, Institut für Gesundheits- und Pflegewissenschaft, Halle,<br />

Deutschland, 2Universitätsklinikum Halle, Halle, Deutschland, 3MLU Halle,<br />

Department Sportwissenschaft, Halle, Deutschland, 4MLU Halle, Institut für<br />

Medizinische Epidemiologie, Biometrie und Informatik, Halle, Deutschland<br />

Objective. Patients with hematopoietic stem cell transplantation<br />

(HSCT) suffer from a range of symptoms including mucositis, fatigue<br />

and mobility/activity deficits. This single center prospective non randomized<br />

clinical study examined whether an evidence-based interdisci-<br />

14 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

plinary caring program would improve global health status and reduce<br />

somatic symptoms in patients with HSCT.<br />

Method. Patients with HSCT, age >14 years and written informed consent<br />

were eligible. The intervention group received modified care consisting<br />

of three modules based on counseling and exercise focusing<br />

mobility/activity enhancement, prevention of oral mucositis and nutritional<br />

support. Control group patients received standard care. Primary<br />

endpoint was global HRQoL measured by EORTC QLQ C30 at<br />

discharge. Secondary endpoints were symptoms measured by EORTC<br />

symptom-scales, physical activity (kcal per week) and use of resources<br />

e.g. duration of hospitalization.<br />

Results. 82 patients participated (control group n=42, intervention<br />

group n=37, average age of 52.6±12.7 years, 69.9% male). Baseline characteristics<br />

were balanced between both groups except ECOG-status which<br />

was significantly lower for patients of the intervention group (p


patients that were not already (i) in a reduced performance status or (ii)<br />

experiencing symptoms that are indicators for advanced disease (e.g.<br />

dyspnoea).<br />

Results. During the first two years of the project, 862 patients were consulted<br />

by the PCST. Generally, patients were already in a reduced physical<br />

state (ECOG 3 & 4: 40%) and experiencing burdening symptoms<br />

(e.g. dyspnoea 27%) on the initial PCST consultation. After a one-year<br />

period, the number of burdening symptoms presented at first PC consultation<br />

decreased significantly from seven to three (p


Abstracts<br />

Best of Poster – Seltene Tumoren<br />

B31 – 0218<br />

Comparison of Cyclophosphamide versus Ifosfamide containing<br />

adjuvant chemotherapy (CTX) in Ewing sarcoma (ES) patients:<br />

results of the randomized standard risk (SR) cohort of EURO-<br />

E.W.I.N.G. 99 Trial<br />

*U . Dirksen1 , A . Ranft1 , M .-C . Le Deley2 , J . Whelan3 , M . Paulussen4 , O . Oberlin5<br />

, I . Lewis6 , J . Michon7 , R . Ladenstein8 , B . Brennan9 , P . Marec Bérard10 ,<br />

H . van den Berg11 , L . Hjorth12 , C . Douglas13 , I . Judson14 , M . van Glabekke15 ,<br />

A . Craft16 , H . Jürgens1 , *U . Dirksen1 , A . Ranft1 , M .-C . Le Deley2 , J . Whelan3 ,<br />

M . Paulussen4 , O . Oberlin5 , I . Lewis6 , J . Michon7 , R . Ladenstein8 , B . Brennan9 ,<br />

P . Marec Bérard10 , H . van den Berg11 , L . Hjorth12 , C . Douglas13 , I . Judson14 ,<br />

M . van Glabekke15 , A . Craft16 , H . Jürgens1 1UKM, Pädiatrische Hämatologie und Onkologie, Münster, Deutschland,<br />

2 3 Institut Gustave Roussy, Biostatisique, Paris, Frankreich, University<br />

College Hospital, Medical Oncology, London, UK, 4Vestische Kinderklinik,<br />

Datteln, Deutschland, 5Institut Gustave Roussy, Oncologie Pédiatrique,<br />

Paris, Frankreich, 6St .James University Hospital, Leeds, UK, 7Institut Curie,<br />

Paris, Frankreich, 8St . Anna Children’s Hospital and Research Institute, Wien,<br />

Österreich, 9Royal Manchester Children’s Hospital, Manchester, UK, 10Centre Léon Bérard, Lyon, Frankreich, 11Academic Medical Center, Emma Children’s<br />

Hospital, Amsterdam, Niederlande, 12Lund University Hospital, Lund,<br />

Schweden, 13CCLG Data Centre, Leicester, UK, 14University of Birmingham,<br />

Birmingham, UK, 15European Organisation for Research and Treatment of<br />

<strong>Cancer</strong> Headquarters, Brussels, Belgien, 16The Royal Marsden NHS Foundation<br />

Trust, London, UK<br />

Background. Anthracyclines and alkylating agents and are the backbone<br />

of worldwide used chemotherapeutic regimens in ES. Ifosfamide and<br />

cyclophosphamide have different toxicity profiles and unknown relative<br />

efficacy. The EURO-E.W.I.N.G.99 R1 trial for SR patients, compared two<br />

consolidation regimens combining ifosfamide (I) or cyclophosphamide<br />

(C) with vincristine (V) and actinomycin D (A) (VAI vs VAC).<br />

Methods. SR patients with localized ES and either good histological response<br />

to induction chemotherapy or tumor size


Versorgungsstrukturen/Qualitätssicherung<br />

Best of Poster – Versorgungsstrukturen/<br />

Qualitätssicherung<br />

B33 – 0098<br />

Comparison of psychosocial outcomes of breast and colorectal<br />

cancer patients treated in certified cancer centres vs. non-certified<br />

treatment units<br />

*G . Weißflog1 , S . Singer1 , G . Klinitzke2 , E . Kleinert1 , C . Wittekind3 , E . Brähler1 ,<br />

J . Ernst1 1Universität Leipzig, Medizinische Psychologie und Medizinische Soziologie,<br />

Leipzig, Deutschland, 2Universitätsklinikum Leipzig AöR, Klinik und<br />

Poliklinik für Psychosomatische Medizin und Psychotherapie, Leipzig,<br />

Deutschland, 3Tumorzentrum am Universitätsklinikum Leipzig e . V ., Leipzig,<br />

Deutschland<br />

Purpose. In <strong>German</strong>y, breast and colorectal cancer patients are increasingly<br />

being treated in certified cancer centres. To date, there are no<br />

research findings investigating potential differences in clinical, sociodemographic<br />

and psychosocial outcomes (patient satisfaction, quality<br />

of life, and psychosocial distress) between patients treated in certified<br />

cancer centres and patients treated in non-certified units.<br />

Methods. In a cross-sectional study, socio-demographic, disease-related<br />

(e.g. UICC stage), and psychosocial data of patients with breast or<br />

colorectal cancer were assessed in a postal survey. The questionnaire<br />

included the following standardised instruments: for patient satisfaction<br />

the Hamburger Fragebogen zum Krankenhausaufenthalt (HFK),<br />

the EORTC Quality of Life Questionnaire – Core instrument (EORTC<br />

QLQ-C30) and for psychosocial distress the Hospital Anxiety and Depression<br />

Scale (HADS).<br />

Results. A total of 1,925 persons were enrolled into the study. 101 persons<br />

were excluded from this initial sample (48 could not be located, 42<br />

died in the meantime, 14 were cognitive impaired). Of the remaining<br />

1,821 patients, a total of 950 cancer patients participated in the survey<br />

(return-rate: 52%, 666 patients with breast cancer and 284 patients with<br />

colorectal cancer). The mean age of respondents was 64 years. Patients<br />

with breast and colorectal cancer treated in certified cancer centres differed<br />

not to patients treated in non-certified units with respect to clinical<br />

and socio-demographic data. In both groups, patient satisfaction<br />

was generally high. There are only few differences in patient satisfaction<br />

and its subdimensions (e.g. overall judgement was lower in breast cancer<br />

patients who were treated in a certified breast cancer centre; satisfaction<br />

with the sub-dimension medical care is higher in colorectal cancer<br />

patients in certified colorectal cancer centres). There were no differences<br />

between both groups in psychosocial distress (anxiety and depression),<br />

but colorectal cancer patients in certified cancer centres experienced<br />

impaired quality of life.<br />

Conclusion. With respect to these empirical findings, there is evidence<br />

of particular (but not general) differences in psychosocial outcomes in<br />

comparison between certified cancer centres and non-certified units.<br />

These results must be validated in future studies involving further parameters<br />

(e.g. guideline-adherence, compliance), and advanced designs<br />

(longitudinal approach).<br />

Best of Poster – Versorgungsstrukturen/<br />

Qualitätssicherung<br />

B34 – 0179<br />

Trends of population-based breast cancer survival in <strong>German</strong>y<br />

and the US: decreasing discrepancies<br />

*B . Holleczek1 , H . Brenner2 1 2 Saarland <strong>Cancer</strong> Registry, Saarbrücken, Deutschland, Division of Clinical<br />

Epidemiology and Aging Research, <strong>German</strong> <strong>Cancer</strong> Research Center,<br />

Heidelberg, Deutschland<br />

Background. Population-based studies have revealed both higher cancer<br />

survival in the US than in <strong>German</strong>y and substantial improvement of<br />

cancer prognosis in these two countries in the past. This populationbased<br />

study aims at comparing most recent 5-year survival of breast<br />

cancer (BRC) patients and preceding trends in <strong>German</strong>y and the US.<br />

Material and methods. Women with invasive BRC (ICD-10: C50) from<br />

<strong>German</strong>y (Saarland) and the US (SEER 13 registries) diagnosed and<br />

followed up through 1977 and 2008 were included (in total 21,796 and<br />

617,882 patients, respectively). Period analysis was used to derive most<br />

up-to-date 5-year relative survival (RS) for subsequent calendar periods<br />

of 4 years between 1981 and 2008 according to age (1–69 and 70+ years<br />

at diagnosis) and stage (localized, local/regional spread, metastasized,<br />

unknown).<br />

Results. Between 1981 and 2008, age standardized RS has steadily improved<br />

in <strong>German</strong>y and the US from 65% and 75% to 83% and 89%, respectively.<br />

In 2005–2008, no differences in age specific RS were observed<br />

for the US, but RS of elderly patients was only 75% compared to 88% for<br />

younger patients in <strong>German</strong>y. Over time, the gap in RS between <strong>German</strong>y<br />

and the US has almost disappeared for younger patients (from 8 to<br />

1% unit), but remained unchanged for elderly patients (13% units). Most<br />

recent age standardized RS of localized BRC was 98% in both countries.<br />

RS of locally/regionally spread and metastasized BRC was 79% and 24%<br />

in <strong>German</strong>y and 84% and 27% in the US, respectively in 2005–2008. Since<br />

1993–1996, the differences in RS have decreased by 5 and 7% units for<br />

localized and locally/regionally spread BRC, but increased by 4% units<br />

for metastasized BRC. If adjusted for stage mix, the difference in RS has<br />

almost disappeared over time.<br />

Conclusion. Differences between 5-year RS of BRC patients in <strong>German</strong>y<br />

and the US have decreased over time. Similar RS is now observed for<br />

patients below the age of 70 years and localized BRC, but in <strong>German</strong>y<br />

RS is still inferior for elderly patients and advanced disease. Differences<br />

in the health care systems, implementation and utilization of organized<br />

screening, delivery of cancer care as well as population characteristics<br />

may account for the observed differences in survival. Encouraging, the<br />

survival of BRC patients has improved in <strong>German</strong>y to a much greater<br />

extent than in the US, albeit challenges remain for the care of elderly<br />

patients and advanced disease in both countries.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

17


Abstracts<br />

Best of Poster – Versorgungsstrukturen/<br />

Qualitätssicherung<br />

B35 – 0283<br />

Effects of a longitudinal intervention study on physical activity<br />

and functional capability in workaday and occupational following<br />

oncological rehabilitation<br />

*H . Kähnert1 , A .-K . Exner1 , B . Leibbrand2 , I . Biester3 , D . Gharaei4 , C . Niehues5 ,<br />

M . Trapp6 1Salzetalklinik, IFR, Norderney – Bad Salzuflen, Bad Salzuflen, Deutschland,<br />

2 3 Salzetalklinik, Onkologie, Bad Salzuflen, Deutschland, MediClin Rose<br />

Klinik, Onkologie, Horn-Bad Meinberg, Deutschland, 4Klinik Porta-Westfalica,<br />

Onkologie, Bad Oeynhausen, Deutschland, 5Median Kliniken am<br />

Burggraben, Onkologie, Bad Salzuflen, Deutschland, 6Median Klinik am<br />

Park, Onkologie, Bad Oeynhausen, Deutschland<br />

Introduction. Physical activity (PA) plays a major role in the prevention<br />

and rehabilitation of breast cancer patients. Although many patients<br />

may develop an intention to change their PA, they might not act accordingly.<br />

Based on the Health Action Process Approach, volitional<br />

factors like action-/coping planning serve to mediate between exercise<br />

intention and later PA. The study investigates the effectiveness of the<br />

INOP-intervention (Individuelle Nachsorge onkologischer Patienten)<br />

focusing on action- and coping planning to change PA and thus functional<br />

capability in workaday (FCW) as well as occupational (FCO) over<br />

six months.<br />

Methods. The sample consisted of 450 breast cancer patients who underwent<br />

an oncological rehabilitation. They were randomly assigned to<br />

the control (CG) or intervention group (IG) and were interviewed with<br />

a questionnaire at the beginning (t1), at the end (t2) and 6 months after<br />

the rehabilitation (t3). While the CG received the conventional care, the<br />

IG additionally received the INOP intervention (consisting of a seminar,<br />

a counseling interview during the clinical setting and/or a phone<br />

interview 3 months after discharge). Analysis of covariance was applied<br />

to investigate differences between CG and IG regarding the action-/coping<br />

planning, the PA, FCW and FCO (IRES-3 questionnaire).<br />

Results. Compared to the CG the action-/coping planning of the IG<br />

increased from t1 to t3. The IG patients reported significantly higher<br />

planning activities to t2 (p


Urologische Tumoren<br />

Best of Poster – Urologische Tumoren<br />

B37 – 0005<br />

A novel stereotactic prostate biopsy system integrating preinterventional<br />

MRI and live US fusion<br />

*T .H . Kuru 1 , M . Roethke 2 , H .-P . Schlemmer 2 , M . Hohenfellner 1 , B .A . Hadaschik<br />

1<br />

1 Universitätsklinik Heidelberg, Klinik für Urologie und Kinderurologie,<br />

Heidelberg, Deutschland, 2 DKFZ Heidelberg, Abteilung für Radiologie,<br />

Heidelberg, Deutschland<br />

Purpose. To develop an effective way to precisely diagnose prostate cancer<br />

employing a novel prostate biopsy system which integrates preinterventional<br />

MRI with periinterventional ultrasound for perineal navigated<br />

prostate biopsies.<br />

Patients and methods. 106 men with suspicion of prostate cancer (median<br />

age 66 yrs, PSA 8.0 ng/ml, prostate volume 47 ml) underwent multiparametric<br />

3T-MRI. Suspicious lesions were marked on the MRI and<br />

the data were transferred to the novel biopsy system. Using a custommade<br />

biplane TRUS probe mounted on a stepper, 3D-ultrasound data<br />

were gathered and fused with the MRI. As a result, suspicious MRI-lesions<br />

were superimposed over the TRUS-data. Next, 3D-biopsy planning<br />

was performed including systematic biopsies from the peripheral zone<br />

of the prostate. Perineal biopsies were taken under live US-imaging and<br />

the precise location of each biopsy was documented in 3D. Feasibility,<br />

safety, and cancer detection were evaluated.<br />

Results. Prostate cancer was detected in 63 out of 106 patients (59.4%).<br />

A positive correlation between MRI findings and histopathology was<br />

found in 68.9% (71/103). In MRI-lesions marked as highly suspicious,<br />

the detection rate was 95.8% (23/24). Target registration error of the first<br />

2461 biopsy cores was 1.7 mm. Regarding adverse effects, two patients<br />

experienced urinary retention and one patient a perineal hematoma.<br />

Urinary tract infections did not occur.<br />

Conclusions. Perineal stereotactic prostate biopsies guided by the combination<br />

of MRI and ultrasound allow effective examination of suspicious<br />

MRI-lesions. Each biopsy core taken is documented accurately<br />

for its location in 3D enabling MRI-validation and tailored treatment<br />

planning. The morbidity of the procedure was minimal.<br />

Best of Poster – Urologische Tumoren<br />

B38 – 0233<br />

Basal Differentiation Marker KRT14 Identifies High-Risk Bladder<br />

<strong>Cancer</strong> Patients<br />

*J .-P . Volkmer1,2 , D . Sahoo2 , R .K . Chin2 , P .L . Ho3 , C . Tang2 , A .V . Kurtova3 ,<br />

S .B . Willingham2 , S .K . Pazhanisamy3 , H . Contreras-Trujillo 2 , T . Storm2 ,<br />

Y . Lotan4 , A . Beck2 , A . Alizadeh2 , G . Guilherme3 , S . Lerner3 , M . van de Rijn, 2 ,<br />

L . Shortliffe2 , K . Chan3 , I . Weissman2 1 2 Uniklinik Düsseldorf, Urologie, Düsseldorf, Deutschland, Stanford University,<br />

Institute for Stem Cell Biology & Regenerative Medicine, Stanford, USA,<br />

3 4 Baylor College of Medicine, Houston, USA, UT Southwestern, Urology,<br />

Dallas, USA<br />

Background. Pathological stage and grade are the standard for assessing<br />

prognosis of bladder cancer (BC). Grade provides a description of<br />

BC differentiation based on broad histological criteria. We sought to<br />

determine whether a molecular classification of differentiation could<br />

improve BC prognostics.<br />

Methods. We developed a biologically supervised computational approach,<br />

utilizing pre-existing gene-expression datasets, to predict differentially<br />

expressed genes during BC differentiation. Tumor cells corresponding<br />

to each differentiation state were isolated from patient BCs<br />

by fluorescence-activated cell sorting and their relative tumorigenic and<br />

differentiation potential were validated by xeno-transplantation. An association<br />

between the identified molecular markers with patient survival<br />

was validated in three independent pre-existing BC gene expression<br />

datasets and two independent patient tissue datasets by immunohistochemistry.<br />

Results. We identified keratin and corresponding cell-surface marker<br />

expression patterns that putatively define three differentiation states<br />

in BCs: basal (KRT14 + KRT5 + KRT20 − /CD90 + CD44 + CD49f + ), intermediate<br />

(KRT14 − KRT5 + KRT20 − /CD90 - CD44 + CD49f + ), and differentiated<br />

(KRT14 − KRT5 − KRT20 + /CD90 − CD44 − CD49f + ). These differentiation states<br />

revealed three subtypes of BC (basal, intermediate, differentiated).<br />

Only the most primitive cells within each subtype formed xenograft<br />

tumors and differentiated to all downstream cell compartments. KRT14<br />

marks the basal differentiation state and is associated with significantly<br />

worse patient survival in 3 independent gene expression (p


Abstracts<br />

spectrometry (SELDI-TOF MS) and multiplex-two-dimensional fluorescence<br />

gel electrophoresis (Multiplex-2DE) provided protein candidates<br />

separating samples into primary clinical benefit (CB) and primary progressive<br />

disease (PD). Identification of these candidates was performed<br />

by peptide mass fingerprinting. Western Blot and ELISA were carried<br />

out for quantification.<br />

Results. Protein pattern specific for primary PD could be generated by<br />

SELDI-TOF MS and biostatistics. Multiplex-2DE revealed i.a. serum<br />

amyloid A (SAA) as differentially expressed protein. Pre-therapeutic<br />

SAA-concentrations were significantly different between CB and PD in<br />

Sunitinib-treated patients but were not for Sorafenib. Comparison of<br />

therapeutic SAA-concentrations after 3 months resulted in significant<br />

differences for both drugs. High SAA-levels are representative for primary<br />

PD.<br />

Conclusion. Our data show that pre-therapeutic serum is well-suited to<br />

establish protein signatures for TKI-therapy response prediction based<br />

on the used techniques. Selection of patients for personalized medicine<br />

seems possible. In this ongoing study further candidates from the<br />

detected protein signature have to be identified and validated on an independent<br />

patient cohort.<br />

Best of Poster – Urologische Tumoren<br />

B40 – 0431<br />

Influence of morbidity on health-related quality of life after<br />

open retropubic radical prostatectomy<br />

*B . Löppenberg1 , C . von Bodmann1 , M . Brock1 , T . Eggert1 , J . Palisaar1 ,<br />

J . Noldus1 1Ruhr-Universität Bochum Marienhospital Herne, Klinik für Urologie und<br />

Neuro-Urologie, Herne, Deutschland<br />

Introduction and Objectives. Standardized assessment of complications<br />

following open retropubic prostatectomy (ORRP) results in overall<br />

complication rates of about 30%.The influence of medical and surgical<br />

complications on health-related quality of life (HRQOL) has not been<br />

investigated. Objective was to evaluate the influence of complications,<br />

continence and erectile dysfunction on HRQOL one year after ORRP.<br />

Methods. Medical and surgical complications of ORRP were assessed<br />

prospectively within 30 days postoperative. They were graded according<br />

to the Clavien-Dindo classification retrospectively. HRQOL was<br />

assessed preoperatively and one year after ORRP using the EORTC-<br />

QLQ C30 questionnaire. Pre- and postoperative results were compared<br />

by using the Wilcoxon rank test. HRQOL of patients without complications<br />

were compared to patients who had complications using the<br />

Mann Whitney-U test. A p


de and vice versa. Therefore, blockade of the SDF-1-pathway can only<br />

become a successful anti-angiogenic approach in tumor therapy with<br />

respect to I-TAC-mediated signaling.<br />

Discussed Poster – GI-Tumoren<br />

D2 – 0223<br />

Anti-neoplastic activity of Taurolidine in pancreatic cancer – in<br />

vitro study of different pancreatic cancer cell lines<br />

*M . Buchholz1 , A . Flier1 , S . Hahn2 , D . Bulut3 , W . Uhl1 , A . Chromik1 1 2 St . Josefs Hospital, Chirurgie, Bochum, Deutschland, Ruhr Universität,<br />

Bochum, Deutschland, 3St . Josefs Hospital, Bochum, Deutschland<br />

Introduction. Taurolidine (TRD) – a compound derived from the aminosulfoacid<br />

Taurine – has been shown to exert anti-neoplastic activity<br />

in vitro in several malignant cell lines (e.g. glioblastoma, and colorectal<br />

cancer). However, human pancreatic cancer cells have not been tested<br />

for susceptibility against TRD induced cell death. The aim of this project<br />

was therefore to evaluate the anti-neoplastic activity of TRD in different<br />

pancreatic cancer cell lines in vitro.<br />

Material and methods. Five pancreatic cancer cell lines (AsPC-1, BxPC-<br />

3, HPAF II, MiaPaca-2 and Panc1) were incubated with increasing concentrations<br />

of TRD (10, 100, 250, 500 und 1000 µmol/l) for 6 h, 12 h, 24 h<br />

and 48 h. Different methods were used to receive a systematic analysis<br />

of several aspects of anti-neoplastic actions induced by TRD. Cytotoxic<br />

and anti-proliferative activities were evaluated by colorimetric MTT-<br />

and ELISA based BrdU-assays, respectively. The TRD related apoptosis<br />

induction was examined by FACS-analysis (AnnexinV-FITC/Propidiumiodide).<br />

Dose dependent growth curves during exposure of TRD over<br />

a certain period of time were rendered using a real-time cell analyzer<br />

(xCelligence, Roche). To compare the effects of TRD with a standard<br />

chemotherapeutic agent for pancreatic cancer, gemcitabine was used as<br />

control treatment (concentrations: 0.01, 0.1, 1, 10, 100 µmol/l).<br />

Results. TRD showed a strong cytotoxic and anti-proliferative effect<br />

in all pancreatic cancer cells with maximal reduction of cell viability<br />

to 10% and proliferation to 15%, as shown in the MTT-and BrdU assay,<br />

respectively. The FACS analysis resulted in a strong apoptotic response<br />

upon stimulation by TRD leading to a maximal apoptotic effect of<br />

40–50%. Among all concentrations, TRD 250 µM caused the strongest<br />

anti-neoplastic activity. The results of the real-time growth curve experiments<br />

confirmed the results. Interestingly, gemcitabine was less effective<br />

compared to TRD in all cell lines.<br />

Conclusions. In this systematic analysis, it could be demonstrated for<br />

the first time that TRD exerts anti neoplastic activity in different pancreatic<br />

cancer cell lines. The results indicate that TRD operates with<br />

different mechanisms, e.g. inhibition of proliferation, direct cell toxicity<br />

and induction of apoptosis. As the most effective TRD concentration,<br />

250 µmol/l was determined, which was also superior to gemcitabine.<br />

Further studies are necessary to evaluate the in vivo capacity of TRD in<br />

pancreatic cancer.<br />

Discussed Poster – GI-Tumoren<br />

D3 – 0259<br />

KRAS, BRAF and PI3K mutations in rectal cancer<br />

*P . Jo1 , K . Jung2 , J . Salendo1 , T . Beissbarth2 , M . Spitzner1 , H .A . Wolff3 ,<br />

L .C . Conradi1 , M . Grade1 , J . Gaedcke1 , H . Becker1 , M . Ghadimi1 1Universitätsmedizin Göttingen, Abteilung für Allgemein- und Viszeralchirurgie,<br />

Göttingen, Deutschland, 2Universitätsmedizin Göttingen, Abteilung<br />

für Medizinische Statistik, Göttingen, Deutschland, 3Universitätsmedizin Göttingen, Abteilung für Strahlentherapie und Radioonkologie, Göttingen,<br />

Deutschland<br />

Background. The heterogeneous response in locally advanced rectal<br />

cancer (RC) treated with a 5-FU based radiochemotherapy (RCT) is still<br />

a considerable clinical dilemma. The pretherapeutic identification of<br />

responders would allow a patient adjusted therapy. Mutations within<br />

the MAPK and PI3K pathway were previously shown to activate the pathways.<br />

However, data on their clinical impact are rare, especially with<br />

respect to the exchange dependent level of activation.<br />

Materials and methods. Mutation profile of KRAS, BRAF and PI3K was<br />

assessed in 192 patients with RC. All patients were treated and followedup<br />

within the CAO/ARO/AIO-94 and -04 trial of the <strong>German</strong> Rectal<br />

<strong>Cancer</strong> Study Group. Analyses compromised exons 2, 3 and 4 for KRAS,<br />

exon 15 for BRAF and exons 9 and 20 for PI3K. Mutations were assessed<br />

using bidirectional Sanger Sequencing. In case of differing results a primer<br />

extension analyses (SNaPshot Multiplex Kit Applied Biosystems,<br />

Foster City, CA) was applied for definite decision.<br />

Results. No typical (V600E) BRAF mutation was identified. 85 (44%)<br />

tumors revealed a KRAS mutation, 22 (11%) showed a mutation in PI3K.<br />

In 55% (12 out of 22) of the tumors KRAS and PI3K mutations occurred<br />

simultaneously. Those patients harboring both mutations revealed<br />

a significantly worse 3- and 5-year disease free survival (p=0.02). KRAS<br />

mutation was significantly associated with a lower number of postoperative<br />

lymph node positivity (ypN+; p=0.05). However, tremendous differences<br />

occurred between the different type of amino acid exchanges<br />

(p


Abstracts<br />

Discussed Poster – GI-Tumoren<br />

D4 – 0274<br />

Preoperative chemoradiation for resectable adenocarcinom of<br />

the pancreas (ISRCTN 78805636): results of a randomized trial<br />

*H . Golcher1 , H . Witzigmann2 , L . Marti3 , J . Lange3 , W . Bechstein4 , C . Bruns5 ,<br />

H . Jungnickel2 , J . Hauss6 , S . Schreiber7 , T . Brunner8 , G . Grabenbauer9 , S . Merkel1<br />

, R . Fietkau10 , W . Hohenberger1 1Universitätsklinikum Erlangen, Chirurgie, Erlangen, Deutschland,<br />

2Krankenhaus Dresden-Friedrichstadt, Allgemein- und Viszeralchirurgie,<br />

Dresden, Deutschland, 3Kantonsspital St . Gallen, Chirurgie, St . Gallen,<br />

Schweiz, 4Universitätsklinikum Frankfurt/Main, Allgemein- und Viszeralchirurgie,<br />

Frankfurt/Main, Deutschland, 5Universitätsklinikum München-Großhadern,<br />

Chirurgie, München, Deutschland, 6Universitätsklinikum Leipzig,<br />

Department Operative Medizin, Leipzig, Deutschland, 7Universitätsklini kum Leipzig, Unfall-, Wiederherstellungs- und Plastische Chirurgie, Leipzig,<br />

Deutschland, 8Gray Institute for Radiation Oncology and Biology, Oxford,<br />

UK, 9Praxis für Radiologische Diagnostik, Radioonkologie und Nuklearmedizin<br />

(DiaCura Coburg), Strahlentherapie, Coburg, Deutschland, 10Universi tätsklinikum Erlangen, Strahlentherapie, Erlangen, Deutschland<br />

Introduction. Standard treatment for resectable pancreatic carcinoma is<br />

primary surgery, and median overal survival time [mOS] for patients<br />

[pts] with resected pancreatic cancer is about 20 months. But still most<br />

pts die from local relapse or metastases. Therefore, we investigated in<br />

a randomized controlled trial whether preoperative chemoradiation<br />

[CRT] in resectable pancreatic carcinoma is superior compared to primary<br />

resection.<br />

Patients and methods. Pts with histologically proven ductal adenocarcinoma<br />

of the pancreatic head encircling peripancreatic vessels for 180°<br />

were randomized into two groups: Group A: primary surgery, Group B:<br />

preoperative chemoradiation (55.4 Gy; gemcitabine/cisplatin), followed<br />

by surgery 6 weeks later. In 2005 a protocol amendment suggested adjuvant<br />

chemotherapy (gemcitabine). The primary endpoint was mOS.<br />

Results. Between 01.06.2003 and 31.12.2009, 73 pts were randomised in<br />

8 centres (A: n=37, B: n=36). Due to slow recruitment the trial was closed<br />

early (planned n=254). By 25.7.11 data of 68 pts (A/B: n=34) could<br />

be evaluated, 3 pts withdrew consent (A/B: n=2/1), 1 centre did not sent<br />

data (A/B: n=1). The allocated therapy was received by 33 pts in Group A<br />

and 30 pts in Group B. 1 pt (A) developed sepsis and died before surgery.<br />

4 pts refused the allocated CRT and underwent primary surgery. Another<br />

4 pts (B) did not undergo surgery due to obvious tumor progression<br />

after CRT. Tumor resection was performed in 24 pts (A) and in 20 pts<br />

(B) by intention-to-treat-analysis. Explorative laparotomy revealed locally<br />

unresectable tumor in 6 pts (A/B n=4/2) and distant metastasis<br />

in 13 pts (A/B n=5/8). The R0-resection rate was 67% (16/24 pts) in A<br />

and 90% (18/20 pts) in B (p=0.083, fisher exact test). One patient (A)<br />

died postoperatively due to perioperative myocardial infarction/multiorgan<br />

failure in hospital. Postoperative complications were comparable<br />

in both groups. mOS was 14.4 months (A) and 17.4 months (B; p=0.90).<br />

mOS after tumor resection was 18 months and 25 months respectively<br />

(p=0,63). For pts whose tumors were not resected mOS was 9.5 months<br />

(A) and 8.2 months (B; p=0.84; similar figures for per-protocol analysis).<br />

Conclusion. The results for the primary endpoint mOS of this trial were<br />

not statistically significant due to low patient numbers. Instead, both<br />

groups had comparable survival figures for resected as well as for notresected<br />

disease. There was a trend for a higher rate of clear resection<br />

margins after CRT and CRT helped to de-mask the biology of the tumor<br />

sparing pts with rapidly progressive disease from surgery.<br />

22 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Discussed Poster – GI-Tumoren<br />

D5 – 0304<br />

CpG island methylator phenotype infers a poor prognosis in<br />

locally advanced rectal cancer<br />

*P . Jo1 , K . Jung2 , M . Grade1 , L .C . Conradi1 , H .A . Wolff3 , J . Kitz4 , J . Rüschoff5 ,<br />

A . Hartmann6 , H . Becker1 , T . Beissbarth2 , A . Müller1 , M . Ghadimi1 , R . Schneider-Stock6<br />

, J . Gaedcke1 1Universitätsmedizin Göttingen, Abteilung für Allgemein- und Viszeralchirurgie,<br />

Göttingen, Deutschland, 2Universitätsmedizin Göttingen, Abteilung<br />

für Medizinische Statistik, Göttingen, Deutschland, 3Universitätsmedizin Göttingen, Abteilung für Strahlentherapie und Radioonkologie, Göttingen,<br />

Deutschland, 4Universitätsmedizin Göttingen, Abteilung für Pathologie,<br />

Göttingen, Deutschland, 5Pathologie Nordhessen, Kassel, Deutschland,<br />

6Universitätsklinikum Erlangen, Abteilung für Pathologie, Erlangen,<br />

Deutschland<br />

Introduction. Locally advanced rectal cancers are treated with preoperative<br />

radiochemotherapy (RCT). However, subsets of patients have no<br />

benefit from preoperative treatment. Since epigenetic modifications,<br />

including DNA methylation, may influence response to neoadjuvant<br />

treatment we studied the CpG island methylator phenotype (CIMP) in<br />

patients who received a 5-fluoruracil based RCT.<br />

Material and methods. One-hundred and fifty patients with locally<br />

advanced rectal cancer, treated within a phase III clinical trial (CAO/<br />

ARO/AIO-94 and -04), were included in this analysis. CIMP was assessed<br />

by methylation specific PCR (MSP) using RUNX3, SOCS1, NEU-<br />

ROG1, IGF2 and CACNA1G as marker panel. Loss of mismatch repair<br />

gene (MMR) expression was assessed by immunohistochemistry for a<br />

subset of patients. KRAS and BRAF mutation status were available from<br />

previous studies.<br />

Results. The CIMP status could be established in all (n=150) patients.<br />

Fifteen (10%) revealed CIMP positivity (≥3 methylated promoters), whereas<br />

135 patients (90%) where classified as CIMP negative. Analysis for<br />

MMR status did not reveal any microsatellite instability (MSI). A single<br />

mutation of the BRAF gene (D594G) was detected. The KRAS gene<br />

(exon 1, 2, and 3) was mutated in 65 tumors (43%) but was not correlated<br />

to a specific CIMP status. Three- and 5-year disease-free survival was<br />

notably worse in CIMP positive patients (56% and 0% vs. 80% and 75%;<br />

p


Discussed Poster – GI-Tumoren<br />

D6 – 0382<br />

Searching for predictive molecular markers for chemoradioimmunotherapy<br />

with interferon-alpha and 5-fluorouracil of<br />

pancreatic cancer patients<br />

*T . Rusch1 , S . Bulashevska2 , J . Werner1 , A .V . Bazhin1 1Universitätsklinikum Heidelberg, Chirurgische Klinik, Heidelberg, Deutschland,<br />

2Deutsches Krebsforschungszentrum, Division of Theoretical Bioinformatics,<br />

Heidelberg, Deutschland<br />

Background and aims. Nowadays the importance of individualised therapy<br />

finds its way more and more into the awareness of scientists and<br />

medical doctors. Pancreatic carcinoma has a particularly poor prognosis<br />

with a median survival of 6 months. The standard treatment today is<br />

surgical resection and subsequent adjuvant chemotherapy. This is possible<br />

in about 20% of all patients, and results in a median survival of over<br />

20 months. A recent multicenter trial on intensified adjuvant chemoradioimmunotherapy<br />

with interferon-alpha, the CapRi trial, also could<br />

not increase survival compared to standard chemotherapy, 5-fluorouracil<br />

alone. Nevertheless the outcome of over 30 months median survival<br />

represented the best ever reported outcome for patients with resected<br />

pancreatic cancer in a randomized trial. The main aim of the work was<br />

to identify predictive molecular markers for patients’ selection for chemoradioimmunotherapy<br />

with interferon-alpha.<br />

Methods. RNA from the frozen tumor tissues of patients with higher<br />

and lower overall survival (OS) was isolated and used for gene expression<br />

profiling with Illumina technology. Bioinformatics was applied to<br />

select differentially expressed genes. The selected gene candidates were<br />

further validated by real-time PCR. Survival analysis with gene candidates<br />

as predictors was applied to find predictive markers with respect<br />

to OS and disease-free survival (DFS).<br />

Results. 12 gene candidates were selected from the Illumine array data<br />

as potential candidates for their subsequent evaluation as predictive<br />

markers. Expression level of these genes was measured with Real-Time<br />

PCR. Afterwards we applied the Cox Proportional Hazard model on<br />

the 12 selected genes to identify the significant predictors of the OS and<br />

disease-free survival (DFS). Highly significant predictors for the OS of<br />

the patients appeared to be GAGE5 (p =0.0099), as well as MAP3K2 (p<br />

=0.055) and RTEL1 (p =0.06). 3 genes were detected to be highly significant<br />

predictors for the DFS: GAGE5 (p =0.0088), MAP3K2 (p =0.02444)<br />

and TCEA1 (p =0.0304).<br />

Conclusion. Expression level of GAGE5, MAP3K2 and RTEL1 has been<br />

found to be predictive for the OS, and GAGE5, MAP3K2 and TCEA1 –<br />

for the DFS of patients undergoing chemoradioimmunotherapy. These<br />

markers should be prospectively evaluated in a future clinical trial.<br />

Mammakarzinom/gynäkologische Tumoren<br />

Discussed Poster – Mammakarzinom/<br />

gynäkologische Tumoren<br />

D7 – 0163<br />

The power of DNA double-strand break repair testing to predict<br />

breast cancer susceptibility<br />

M . Keimling1 , M . Deniz1 , D . Varga1 , H . Schrezenmeier2 , R . Kreienberg1 , I . Hoffmann3<br />

, J . Koenig3 , *L . Wiesmüller1 1 2 Universität Ulm, Universitätsfrauenklinik, Ulm, Deutschland, Universität<br />

Ulm, Abt . Transfusionsmedizin, Ulm, Deutschland, 3Universität Mainz,<br />

IMBEI, Mainz, Deutschland<br />

Purpose. All breast cancer susceptibility genes have been linked to DNA<br />

double strand break (DSB) repair. However, these genes explain only a<br />

small fraction of the familial risk. To identify novel markers that may<br />

serve as indicators for breast cancer risk, we performed DSB repair<br />

analysis in cohorts of predisposed women, cancer patients, and healthy<br />

women.<br />

Methods. We previously developed a GFP-based test system for detection<br />

of mechanistically distinct DSB repair changes caused by predisposing<br />

mutations. Here, we analyzed DSB repair using three pathway-specific<br />

substrates in peripheral blood lymphocytes (PBLs) from 35 female<br />

members of families with defined history of familial breast and/or ovarian<br />

cancer, 175 female breast cancer patients, and 245 healthy women<br />

without previous cancer and without family history of breast cancer. A<br />

logistic model was fitted for each variable to determine association of<br />

repair changes with breast cancer/risk.<br />

Results. We found increases of the error-prone mechanisms non-homologous<br />

end joining (NHEJ) and single-strand annealing (SSA) in<br />

women with familial risk and breast cancer patients (risk: p=0.0001–<br />

0.0022; cancer: p=0.0004–0.0042). Young age (


Abstracts<br />

Methods. We analyzed the prognostic impact of a B-cell derived gene<br />

signature, including the most representative marker of this signature,<br />

immunoglobulin kappa C (IGKC), in gene expression profiles of 1810<br />

breast carcinomas. Protein and RNA levels of IGKC were examined in<br />

paraffin embedded tissue of 330 node-negative breast cancer patients.<br />

Finally, the origin of IGKC expression was determined using immunostaining<br />

and confocal fluorescence microscopy. Prognosis was analyzed<br />

with Cox regression, Kaplan-Meier analysis, Brier scores and meta-analyses.<br />

Results. IGKC as a single gene similarly predicts better prognosis<br />

in node-negative breast cancer not treated in the adjuvant setting<br />

(HR=0.81; p


moendocrine therapy (CHT) was changed to endocrine therapy (HT)<br />

and in10.7% of all, 11.5% of N0 and 9.0% of N+ from HT to CHT. In 25%<br />

of all, 22% of N0 and 39% of N+ pts initially recommended HT the post-<br />

RS recommendation changed to CHT; in 38% of all, 39% of N0 and 37%<br />

of N+ pts initially recommended CHT it changed to HT. Physicians’<br />

confidence increased in 45.1% of all (p=0.047), 44.7% of N0 and 45.9% of<br />

N+ cases. There was a moderate improvement of the decisional conflict<br />

score which was statistically significant for all pts (p=0.029) and the low<br />

RS subgroup (p=0.003). Net reduction in adjuvant chemotherapy usage<br />

was 19.1% in all, 14.0% in N0 and 27.9% in N+ pts. The incremental costeffectiveness<br />

ratio associated with the use of the test was € 442/life year<br />

and considering the societal perspective € 155/life year.<br />

Conclusions. Results of our study suggest an impact of the RS on adjuvant<br />

treatment decision making in ER+ EBC in <strong>German</strong> clinical practice<br />

resulting in a significant net reduction of adjuvant chemotherapy<br />

usage. The effect was more pronounced for patients with node positive<br />

disease.<br />

Discussed Poster – Mammakarzinom/<br />

Gynäkologische Tumoren<br />

D11 – 0381<br />

Comparison of the ER, PR and HER/2neu status changes in primary<br />

and relapsed breast cancer<br />

*R . Mavrova1 , J . Radosa1 , A . Mayer2 , R .-M . Bohle2 , E .-F . Solomayer1 , I . Juhasz-<br />

Böss1 1 2 Uniklinik Homburg, Frauenklinik, Homburg /Saar, Deutschland, Uniklinik<br />

Homburg, Pathologie, Homburg/ Saar, Deutschland<br />

Question. We analyzed the changes in the estrogene (ER) and progesterone<br />

(PR) receptor, and HER/2neu status of primary and relapsed breast<br />

cancer in patients suffering from a relapse and we searched for possible<br />

causes.<br />

Methods. We analyzed the data of 68 patients with a relapse detected at<br />

the Saarland University Hospital during the last 5 years. We compared<br />

the receptor status of the primary tumor to the receptor status of the<br />

relapse.<br />

Results. 44 of 68 (65%) patients analyzed showed a positive ER and PR<br />

status in the primary tumor. Overall we notices 16 switches in ER status<br />

(23%) and 23 switches in PR status (34%). The switches occurred from<br />

negative status to positive status and vice versa. A trend of switch from<br />

hormone receptor positive status towards negative status could be observed.<br />

In contrast the Her2/neu status changed from negative to positive<br />

in each case.<br />

Conclusion. The hormone and Her2/neu receptor status can vary strongly<br />

between primary tumor and relapse in breast cancer in the same patient.<br />

It is to be noted that there are more switches in PR than in ER status.<br />

In our patients collective the occurrence of receptor status switches<br />

were independent of hormone therapy after the initial diagnosis.<br />

Discussed Poster – Mammakarzinom/<br />

Gynäkologische Tumoren<br />

D12 – 0407<br />

Multivariate analysis of obesity and survival in patients with<br />

node-positive primary breast cancer: The ADEBAR trial<br />

*C . Hagenbeck1 , W . Janni1 , B . Rack2 , P . Hepp1 , U . Andergassen2 , N . Harbeck3 ,<br />

J . Neugebauer2 , K . Annecke4 , A . Wischnik5 , W . Simon6 , M . Rezai7 , T . Fehm8 ,<br />

A . Schneeweiss9 , P .A . Fasching10 , B . Gerber11 , T . Zwingers12 , H . Sommer2 ,<br />

K . Friese2 , M . Kiechle4 1Universitätsklinik Düsseldorf, Frauenklinik, Düsseldorf, Deutschland,<br />

2Ludwig-Maximilians-Universität, Frauenklinik, München, Deutschland,<br />

3 4 Universitätsklinik, Frauenklinik, Köln, Deutschland, Technische Universität<br />

München, Frauenklinik, München, Deutschland, 5Klinikum Augsburg, Frauenklinik,<br />

Augsburg, Deutschland, 6Robert-Bosch-Krankenhaus, Frauenklinik,<br />

Stuttgart, Deutschland, 7Luisenkrankenhaus, Düsseldorf, Deutschland,<br />

8Universitätsklinikum Tübingen, Frauenklinik, Tübingen, Deutschland,<br />

9Universitätsklinikum Heidelberg, Nationales Centrum für Tumorerkrankungen,<br />

Heidelberg, Deutschland, 10Universitätsklinik Erlangen, Frauenklinik,<br />

Erlangen, Deutschland, 11Universitätsklinik Rostock, Frauenklinik,<br />

Rostock, Deutschland, 12Estimate, Augsburg, Deutschland<br />

Background. The prevalence of obesity increases throughout most industrialized<br />

countries. Epidemiological studies have shown not only an<br />

increase in breast cancer (BC) among obese women but also an adverse<br />

impact of obesity on BC survivors. This analysis focuses on the impact<br />

of obesity on high risk BC patients (pts) treated within the ADEBAR<br />

study protocol.<br />

Methods. The ADEBAR Trial compared 4 cycles of EC followed by<br />

4 cycles of Doc vs. 6 cycles of FEC (120) in pts with primary BC (≥4LN).<br />

1500 pts have been accrued from Sep/01 through May/05. For this analysis<br />

data of 1361 pts have been analyzed about the impact of obesity<br />

on disease free survival. Therefore pts have been grouped to be either<br />

underweight (BMI


Abstracts<br />

Molekulare Onkologie<br />

Discussed Poster – Molekulare Onkologie<br />

D13 – 0125<br />

Expression of p53D133 isoforms in novel papillary urothelial<br />

cancer cell lines<br />

*A . Koch1 , J . Hatina2 , H . Rieder3 , R . Stoer4 , W .A . Schulz1 1Heinrich Heine Universität, Forschungslabor Urologische Klinik, Düsseldorf,<br />

Deutschland, 2Charles University, Department of Biology, Pilzen,<br />

Tschechische Republik, 3Heinrich Heine Universität, Inst . f . Humangenetik<br />

und Anthropologie, Düsseldorf, Deutschland, 4Universitätsklinikum Erlangen,<br />

Pathologie, Erlangen, Deutschland<br />

Commonly used urothelial cell lines are mostly derived from invasive<br />

urothelial tumors, whereas cell lines derived from papillary tumors are<br />

rare. To expand the repertoire of papillary derived cell lines, we have<br />

established two novel lines BC61 (pTaG2) and BC44 (papillary part of a<br />

pT4G3 carcinoma) using a specifically adapted culture technique. Both<br />

cell lines presented karyotypes typical of progressive papillary urothelial<br />

cancers including monozygosity of chromosome 9. Accordingly,<br />

CDKN2A at 9p21 was homozygously deleted as in many papillary<br />

and invasive urothelial carcinomas. An oncogenic mutation of FGFR3<br />

(S249C) characteristic of low grade papillary urothelial tumors was detected<br />

in BC61 but not BC44. Likewise typical of such tumors BC61 had<br />

wild-type (wt) TA-p53, whereas p53 was initially undetectable in BC44.<br />

The TP53 gene contains alternative promoters from which several isoforms<br />

are transcribed. In particular, p53D133 isoforms expressed from<br />

promoter p2 were shown to inhibit wt p53 function in several tumors.<br />

We therefore studied p53 expression with Do-6 antibody detecting<br />

TA-p53 and others (PAB240, Do-12) detecting several isoforms. BC61<br />

had a normal level of nuclear wt p53 and weak expression of other p53<br />

isoforms, whereas exclusively p53D isoforms were detectable in BC44.<br />

Western blot and PCR identified these isoforms as p53D40 and D133.<br />

In an extended set of urothelial cancer cells and tissues, D133 was expressed<br />

mostly in additional papillary urothelial tumor cell cultures,<br />

but also individual invasive cancer tissues. Methylation and sequencing<br />

analysis of the TP53 gene p1 promoter and gene in BC44 revealed neither<br />

mutations nor hypermethylation as potential causes of the promoter<br />

shift.<br />

In invasive urothelial carcinomas p53 is typically inactivated by missense<br />

or nonsense mutations in one allele with loss of the second wild-type<br />

allele, whereas mutations are much rarer in papillary tumors. We show<br />

that some urothelial carcinomas predominantly or exclusively express<br />

p53 isoforms from the p2 promoter that do not exhibit the full spectrum<br />

of p53 functions. Alternative promoter usage may therefore constitute<br />

a further mode of p53 inactivation in urothelial carcinomas and might<br />

compromise p53 function particularly in papillary tumors, where point<br />

mutations in the gene are rare.<br />

26 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Discussed Poster – Molekulare Onkologie<br />

D14 – 0168<br />

The role of TGF-b1 dependent L1CAM expression in malignant<br />

transformation of intestinal epithelial cells<br />

B . Struck1 , E .-M . Feldmann1 , F . Bergmann2 , E . Grage-Griebenow1 , C . Geismann3<br />

, P . Altevogt4 , H . Schäfer3 , *S . Sebens1 1Department of Internal Medicine I, Institute for Experimental Medicine,<br />

Kiel, Deutschland, 2University of Heidelberg, Institut of Pathology, Heidelberg,<br />

Deutschland, 3Department of Internal Medicine I, Laboratory for Molecular<br />

Gastroenterology & Hepatology, Kiel, Deutschland, 4<strong>German</strong> <strong>Cancer</strong><br />

Research Center, Translational Immunology D015 , Heidelberg, Deutschland<br />

Background. Inflammatory bowel disease (IBD) patients have an increased<br />

risk to develop colorectal cancer (CRC), particularly after longduration<br />

of the disease. Chronic inflammation of the intestinal mucosa<br />

is characterized by a marked enrichment of immune cells such as macrophages<br />

and a plethora of cytokines and growth factors e.g. Transforming<br />

growth factor-beta 1 (TGF-b1). In colorectal cancer tissues, the<br />

adhesion molecule L1CAM has been detected associating with metastatic<br />

spread and poor prognosis of CRC patients. Moreover, L1CAM<br />

induces apoptosis protection and chemoresistance as well as motility<br />

of tumor cells.<br />

Aim. The present study investigates the role of TGF-b1 and macrophages<br />

in the upregulation of L1CAM in intestinal epithelial cells and its functional<br />

consequences.<br />

Methods and results. We demonstrate by immunohistochemistry that<br />

colonic tissues from IBD patients are already characterized by considerable<br />

L1CAM expression in intestinal epithelial cells particularly in<br />

the presence of macrophages compared to normal non-inflammatory<br />

colon tissues. When cocultured with in vitro generated macrophages<br />

the transcription factor Slug and L1CAM are upregulated in the human<br />

colonic cell line NCM460 along with a Slug- and L1CAM-dependent<br />

increase of cell motility and apoptosis resistance against Irinotecan and<br />

Trail. Pharmacological interference with TGF-b1 signaling abolished<br />

the elevated expression of Slug and L1CAM in cocultured NCM460<br />

cells and decreased cell migration and apoptosis protection. Chromatin<br />

immunoprecipitation (ChIP) and luciferase assays revealed that direct<br />

binding of Slug to the L1CAM promoter is essential for gene activation<br />

and upregulation of L1CAM expression in NCM460 cells.<br />

Conclusion. These data provide new insights into the mechanisms by<br />

which IBD promotes malignant transformation of intestinal epithelial<br />

cells and underscore the role of L1CAM in this scenario.<br />

Discussed Poster – Molekulare Onkologie<br />

D15 – 0211<br />

Targeting fibroblast growth factor receptor (FGFR) system impairs<br />

angiogenic signaling in gastric cancer, endothelial cell and<br />

periycytes<br />

*C . Moser1 , C . Hackl1 , H .J . Schlitt1 , E .K . Geissler1 , S .A . Lang1 1Universitätsklinik Regensburg, Klinik und Poliklinik für Chirurgie, Regensburg,<br />

Deutschland<br />

Background. Expression of FGFRs has been associated with poor prognosis<br />

in gastric cancer patients at least in part via activation of MAPK/<br />

Erk and PI3K/Akt signaling. In addition, activation of FGFRs is a crucial<br />

event in induction of tumor angiogenesis through regulation of<br />

endothelial cell/pericyte motility and survival. Therefore, we sought to<br />

evaluate the effects of targeting FGFR on gastric cancer cells as well as<br />

endothelial cells and pericytes.


Methods. Human gastric cancer cells (TMK-1, KKLS), endothelial<br />

cells (ECs), pericytes (vascular smooth muscle cells, VSMCs) and the<br />

FGFR inhibitor BGJ398 (Novartis Oncology, Basel) were used for the<br />

experiments. Effects of BGJ398 on tumor growth and chemoresistance<br />

were determined by MTT assays. For evaluation of cancer cell motility,<br />

modified Boyden chambers were used. Signaling pathways affected by<br />

BGJ398 treatment were assessed by Western blot analyses. Conditioned<br />

media from gastric cancer cells was used to determine effects of FGFR<br />

blockade by BGJ398 on ECs and VSMCs.<br />

Results. Targeting FGFR with BGJ398 impaired in vitro growth of gastric<br />

cancer cells in a dose-dependent manner. Furthermore, activation<br />

of Akt and Erk in cancer cells was effectively blocked while expression<br />

of HIF-1α and c-Myc was reduced. In addition, treatment with BGJ398<br />

led to marked inhibition of constitutive tumor cell migration and invasion<br />

(p


Abstracts<br />

Discussed Poster – Molekulare Onkologie<br />

D18 – 0498<br />

The Wnt transcription factor TCF4 mediates resistance of colorectal<br />

cancer cells to (chemo-)radiotherapy<br />

*M . Grade 1 , E . Kendziorra 1 , K . Ahlborn 1 , M . Spitzner 1 , C . Eimer 1 , M . Rave-<br />

Fränk 2 , J . Gaedcke 1 , G . Emons 1 , H . Becker 1 , T . Ried 3 , T . Pukrop 4 , M . Ghadimi 1<br />

1 Universitätsmedizin Göttingen, Klinik für Allgemein- und Viszeralchirurgie,<br />

Göttingen, Deutschland, 2 Universitätsmedizin Göttingen, Klinik für<br />

Strahlentherapie und Radioonkologie, Göttingen, Deutschland, 3 National<br />

<strong>Cancer</strong> Institute, Genetics Branch, Bethesda, Deutschland, 4 Universitätsmedizin<br />

Göttingen, Klinik für Hämatologie und Onkologie, Göttingen,<br />

Deutschland<br />

Background. The clinical response of locally advanced rectal cancers<br />

to preoperative chemoradiotherapy is very heterogeneous. We recently<br />

profiled a series of responsive and resistant rectal carcinomas using<br />

gene expression microarrays and identified TCF4, a key effector of the<br />

Wnt/β-catenin pathway, as over-expressed in resistant tumors. The aim<br />

of this study was to explore the functional relevance of TCF4 for mediating<br />

treatment resistance.<br />

Methods. Three colorectal cancer cell lines (SW837, SW480, and HT-29)<br />

were transfected with two different shRNA-vectors targeting TCF4.<br />

After establishing stable single-cell clone (SCC) populations, selected<br />

clones were irradiated at 0, 1, 2, 4, 6 and 8 Gy. γH2AX staining was used<br />

to evaluate DNA double strand repair after irradiation, and changes<br />

in cell cycle distribution were analyzed before and after radiation. βcatenin/TCF<br />

signaling activity was assessed using the TOP-FLASH/<br />

FOP-FLASH reporter assay.<br />

Results. RNAi-mediated silencing of TCF4 led to a significant radiosensitization<br />

in SW837 and SW480, whereas no effect was observed in<br />

HT-29. Well-fitting, we observed significantly more γH2AX foci 24 h<br />

after radiation in SW837 SCCs compared to HT-29 SCCs, pointing to an<br />

impaired DNA damage repair in SW837 SCCs. Furthermore, in SW837<br />

SCCs, but not in HT-29 SCCs, we noticed a change in the cell cycle distribution<br />

towards radiosensitive cell cycle phases before radiation, and<br />

compromised cell cycle control after radiation. Analysis of the reporter<br />

assay revealed that SW837 cells shower high β-catenin/TCF signaling<br />

activity compared to HT-29 cells.<br />

Conclusion. TCF4 was found to be over-expressed in resistant rectal carcinomas,<br />

and its RNAi-mediated silencing caused a significant radiosensitization,<br />

mediated by DNA damage repair deficiencies and impaired<br />

cell cycle control. Thus, we have uncovered a novel role of the Wnt<br />

transcription factor TCF4 for mediating radioresistance. Moreover,<br />

these data suggest that TCF4 is a potential therapeutic target to sensitize<br />

resistant tumor cells to radiation.<br />

28 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Seltene Tumoren<br />

Discussed Poster – Seltene Tumoren<br />

D19 – 0276<br />

Histologic diagnoses in persistently swollen cervical lymph<br />

nodes<br />

*W . Laffers1 , K . Eggert1 , H .-U . Schildhaus2 , F . Bootz1 , A .O . Gerstner1 1Universität Bonn, Klinik für HNO-Heilkunde/Chirurgie, Bonn, Deutschland,<br />

2Universität Köln, Institut für Pathologie, Köln, Deutschland<br />

Background. Biopsy and histological examination of persistently enlarged<br />

cervical lymph nodes represent a major health care issue and have<br />

high impact on further clinical therapy. Tertiary health centers are<br />

faced with an increased demand for diagnostic work-up of persistently<br />

swollen cervical lymph nodes in order to rule out malignancy. We<br />

performed a retrospective study from I/2000 to VI/2008 to identify<br />

patients referred to us for diagnostic biopsy and to document the histopathological<br />

result.<br />

Methods. Patients with a diagnostic biopsy but neither clinical signs of<br />

head and neck cancer nor other malignancies were identified within the<br />

records. Patient characteristics and histopathological diagnosis were<br />

retrieved from the system.<br />

Results. Within that period 326 patients were identified (146 female,<br />

180 male). 123 patients (38%; 44 female, 79 male) had a malignancy: 61<br />

with metastatic disease and 62 with malignant lymphoma, the youngest<br />

15 years and the oldest 92 years old.<br />

Conclusions. Persistently swollen cervical lymph nodes should trigger a<br />

thorough clinical examination and prompt biopsy for histopathological<br />

work-up.<br />

Discussed Poster – Seltene Tumoren<br />

D20 – 0281<br />

The endogenous nicotinamide adenine dinucleotide precursor<br />

quinolinic acid confers resistance of glioma to oxidative stress<br />

*F . Sahm1 , A . von Deimling1 , W . Wick2 , M . Platten2 1Institut für Pathologie, Abt . Neuropathologie, Heidelberg, Deutschland,<br />

2Abt . Neuroonkologie, Heidelberg, Deutschland<br />

Background. Quinolinic acid (QA) is a product of tryptophan degradation<br />

and may serve as a precursor for nicotinamide adenine dinucleotide<br />

(NAD) synthesis, an enzymatic step catabolized by quinolinic acid<br />

phosphoribosyltransferase (QPRT) as a source for energy. Pathologic<br />

accumulation of QA has been found in Alzheimer’s and Huntington’s<br />

disease. In these conditions QA is thought to be toxic for neurons by<br />

activating the N-methyl-D-aspartate (NMDA) receptor and inducing<br />

oxidative stress. The role of QA in glioma biology is unclear till date.<br />

Methods. QA accumulation and expression patterns of the QA producing<br />

enzyme 3-hydroxyanthranilate oxygenase (HAAO) and QA metabolizing<br />

QPRT were analyzed in diffusely infiltrating glioma of the<br />

World Health Organization (WHO) grades II, III and IV by immunohistochemistry.<br />

Immunofluorescent double-labelling with CD68 and<br />

glial fibrillary acid protein (GFAP) was applied to assess HAAO and<br />

QPRT expression in different cell populations within the tumor. Real<br />

time-quantitative polymerase chain reaction and western blot analysis<br />

were performed to analyze HAAO and QPRT expression levels in<br />

the human glioma cell lines U251, A172 and the human astrocyte cell<br />

line CRL-8621. Effects of QA on oxidative stress conditions induced<br />

by 100 µM hydrogen peroxide and NAD synthesis inhibition by 10 nM


FK866 were determined by crystal violet viability assay and western blot<br />

for markers of apoptosis.<br />

Results. There was QA accumulation in human gliomas, which is associated<br />

with a malignant phenotype. Expression of the QA producing<br />

enzyme HAAO was confined to microglial cells in glioma tissue. QPRT<br />

expression correlates with glioma malignancy, determined by WHO<br />

grade and is upregulated in recurrent tumors after radio-chemotherapy<br />

compared to specimens of untreated primary lesions. Human malignant<br />

glioma cells but not non-neoplastic astrocytes express QPRT<br />

and utilize QA for NAD synthesis when de novo NAD synthesis was<br />

blocked. QA protects malignant glioma cells but not non-neoplastic astrocytes<br />

from apoptosis induced by NAD depletion or oxidative stress.<br />

Conclusion. There is QA expression in neoplastic astrocytes and a WHO<br />

grade-dependent expression of QPRT as well as induction in treated,<br />

recurrent tumors. Our data indicate that neoplastic transformation in<br />

astrocytes is associated with a switch in NAD metabolism by exploiting<br />

microglia-derived QA as a source of energy and thereby increasing<br />

the resistance to oxidative stress. These findings have implications for<br />

therapeutic approaches inducing intracellular NAD depletion such as<br />

alkylating agents or direct NAD synthesis inhibitors.<br />

Discussed Poster – Seltene Tumoren<br />

D21 – 0371<br />

The role of relative lymphocyte count as a new biomarker for<br />

the effect of catumaxomab on overall survival in patients with<br />

malignant ascites: follow-up results from a phase ll/lll study<br />

*M .M . Heiss1 , M . Ströhlein1 , C . Bokemeyer2 , D . Arnold3 , S .L . Parsons4 , M . Ott5 ,<br />

E . Schulze6 , H . Lindhofer7 , D . Seimetz5 , M . Hennig5 1 2 Cologne-Merheim Medical Center, Cologne, Deutschland, University<br />

Hamburg-Eppendorf, Clinic for Oncology/Haematology and Stemcell<br />

Transplantation, Hamburg, Deutschland, 3Martin Luther University Halle,<br />

Clinic for Internal Medicine IV, Halle, Deutschland, 4Nottingham University<br />

Hospitals NHS Trust, Nottingham, UK, 5Fresenius Biotech GmbH, Munich,<br />

Deutschland, 6Fresenius Biotech GmbH, Medical Affairs, Munich, Deutschland,<br />

7TRION Pharma GmbH, Munich, Deutschland<br />

Background. Catumaxomab (anti-EpCAM x anti-CD3) is approved in<br />

the EU for the intraperitoneal treatment of malignant ascites in patients<br />

with EpCAM-positive carcinomas. Here we report the follow-up overall<br />

survival (OS) results including long-term survival for the pivotal phase<br />

II/III randomized study in patients with malignant ascites due to different<br />

epithelial cancers. In addition, the impact of relative lymphocyte<br />

count in peripheral blood before treatment (RLC) as a new biomarker<br />

for the efficacy of catumaxomab therapy was tested on the basis of a<br />

separate small hypothesis-generating study.<br />

Methods. Survival analyses were performed for the safety set of the pivotal<br />

trial (paracentesis + catumaxomab [catumaxomab]: n=157; paracentesis<br />

alone [control]: n=88) including only patients who received at<br />

least one dose of catumaxomab. In order to identify patients with pronounced<br />

OS benefit, the impact of treatment and RLC was evaluated<br />

using the Cox model. For group comparisons, the Kaplan-Meier method<br />

and log-rank test were applied.<br />

Results. Follow-up results showed a statistically significant benefit in OS<br />

for catumaxomab-treated patients compared with controls (p=0.0219,<br />

HR=0.649). The 6-month OS rate in these patients was 28.9% compared<br />

with 6.7% for the control group. In addition, higher RLC had a positive<br />

impact on OS (p13% (n=159: 100<br />

catumaxomab; 59 control), catumaxomab treatment was associated<br />

with a more pronounced beneficial effect on OS vs controls (p=0.0072,<br />

HR=0.518), with a median/mean OS benefit of 31/131 days and an increased<br />

6-month survival rate of 37.0% vs 5.2% in the control group. Regarding<br />

the time to first paracentesis patients with a RLC ≤13% (p13% (p13% at start of treatment was a significant biomarker<br />

for a prolonged OS outcome with catumaxomab therapy and should<br />

lead to further investigation into the immunology of this clinical observation.<br />

Discussed Poster – Seltene Tumoren<br />

D22 – 0379<br />

Podoplaninexpression in oralen Plattenepithelkarzinomen<br />

*M . Kreppel1,2 , M . Scheer1,2 , U . Drebber3,2 , I . Wedemeyer3,2 , H .-T . Eich4 ,<br />

J .E . Zöller1,2 1Universitätsklinik Köln, Klinik für Mund-, Kiefer- und plastische Gesichtschirurgie,<br />

Köln, Deutschland, 2Centrum für Integrierte Onkologie,<br />

Köln, Deutschland, 3Universitätsklinik Köln, Institut für Pathologie, Köln,<br />

Deutschland, 4Universitätsklinik Münster, Klinik für Strahlentherapie,<br />

Münster, Deutschland<br />

Fragestellung. Trotz verbesserter therapeutischer Möglichkeiten hat<br />

sich die Überlebenswahrscheinlichkeit von Patienten mit fortgeschrittenen<br />

oralen Plattenepithelkarzinomen in den letzten 30 Jahren nicht<br />

wesentlich verbessert. Die Ursache hierfür ist überwiegend ein lokoregionäres<br />

Therapieversagen. Aktuelle Studien weisen auf die Bedeutung<br />

molekularer Faktoren für die Prädiktion und Prognose bei oralen Plattenepithelkarzinomen<br />

hin. Dem muzinähnlichen Glykoprotein Podoplanin,<br />

das maßgeblich an der Lymphangiogenese beteiligt ist, scheint<br />

dabei eine besondere Bedeutung zuzukommen. Ziel unserer Untersuchungen<br />

war es, zum einen den Einfluss von Podoplanin auf die Prognose<br />

und das Metastasierungsverhalten und von oralen Plattenepithelkarzinomen<br />

und andererseits den Wert als Marker für das Ansprechen<br />

des Tumors auf eine präoperative Radiochemotherapie zu untersuchen.<br />

Methoden. Gegenstand der Untersuchungen waren 150 Patienten mit<br />

oralen Plattenepithelkarzinomen, von denen 63 mit einer präoperativen<br />

(neoadjuvant) Radiochemotherapie und 87 mit einer primären<br />

Operation gefolgt von einer adjuvanten Radiochemotherapie behandelt<br />

wurden. Die Podoplaninexpression wurde semiquantitativ immunhistochemisch<br />

bestimmt. Die Podoplaninexpression wurde mit verschiedenen<br />

klinisch-pathologischen Parametern korreliert, zudem wurde<br />

der Einfluss auf das Gesamtüberleben und die lokoregionäre Kontrolle<br />

untersucht.<br />

Ergebnisse. Sowohl bei den neoadjuvant behandelten als auch bei den<br />

primär operativ behandelten Patienten konnte sowohl univariat als<br />

auch multivariat ein starker Einfluss der Podoplaninexpression auf<br />

das Gesamtüberleben nachgewiesen werden (p


Abstracts<br />

Discussed Poster – Seltene Tumoren<br />

D23 – 0447<br />

Prognostic impact of Survivin in oral squamous cell carcinomas<br />

*C .B . Keschke 1 , M . Kappler 1 , U . Bilkenroth 2 , J . Schubert 1 , H . Taubert 1 ,<br />

A .W . Eckert 1<br />

1 Martin-Luther-Universität Halle-Wittenberg, MKG-Chirurgie, Halle(Saale),<br />

Deutschland, 2 Institut für Pathologie, Eisleben, Deutschland<br />

Introduction. Oral Squamous cell carcinomas (OSCC) are one of the ten<br />

most common human tumors. However, the 5-year survival rate stagnates<br />

at almost 50% since 40 years. For a better prognostic calculation<br />

of patients with OSCC as well as for stratification to an individualized<br />

therapy more promising prognostic markers are necessary. The aim of<br />

the present investigation was to analyze the prognostic impact of Survivin<br />

in OSCC, an inhibitor of apoptosis.<br />

Materials and methods. 72 patients with oral squamous cell carcinomas<br />

were enrolled for the study. Tumor specimens were stained for Survivin<br />

using a standard immunohistochemical technique. Expression of Survivin<br />

was determined by assessing semi-quantitatively the percentage<br />

of decorated tumor cells and the staining intensity. All stained tumor<br />

specimens were viewed at magnifications of 100× and 200× by three independent<br />

investigators and correlated with clinicopathological data.<br />

Statistical analyses were performed using χ2-test, KAPLAN-MEIERanalysis,<br />

the log-rank-test and multivariate Cox’s proportional-hazards<br />

regression analysis.<br />

Results. The patient’s median age was 59 years (ranging from 23 to 83 years).<br />

There were 45 T1/T2-tumors and 27 patients suffered from advanced<br />

T3/T4-forms. Twenty-four were well, 33 moderately and 15 poorly<br />

differentiated. Forty-five patients were only surgically treated the other<br />

27 had a combination of surgery and radiotherapy. Survivin had an impact<br />

on prognosis in OSCC of all patients (RR=2.5, p=0.0026). The Cox’s<br />

regression analysis (adjusted to tumor size and tumor grade) revealed<br />

that patients, whose tumors highly expressed Survivin had a 6.83-fold<br />

increased risk of tumor related death in the operated group (p=0.0015).<br />

Conclusion. Survivin is a member of the IAP-family (inhibitor of apoptosis)<br />

and can be considered as an independent prognostic marker in<br />

OSCC. In summary, increased levels of Survivin are significantly correlated<br />

with poor prognosis of OSCC patients. We therefore suggest that<br />

expression of this protein can be used for an early diagnosis. Immunohistochemical<br />

stainings for Survivin should complete the diagnostic<br />

concept (TNM system, grading) at the beginning.<br />

Discussed Poster – Seltene Tumoren<br />

D24 – 0482<br />

Moguntinones – new selective inhibitors for treating solide<br />

tumours<br />

*A . Müller1 , S . Plutizki2 , K . Khillimberger1 , G . Dannhardt2 , M . Moehler1 1 2 Universitätsmedizin Mainz, I . Med . Klinik, Mainz, Deutschland, Johannes<br />

Gutenberg Universität, Pharmazie, Mainz, Deutschland<br />

Introduction. Moguntinones are new innovative, synthetic designed<br />

small molecules, which are a combination of three natural products.<br />

These patent-protected kinase inhibitors were invented by the Institute<br />

of Pharmacy and our Department of Internal Medicine, Mainz. The<br />

substances displayed a new generation of targeted inhibitors for tumour<br />

progression, angiogenesis suppression and resistance blockage.<br />

Methods. The substances were analysed by kinase assays and HET-CAM<br />

as well as in vitro in four human colon cancer (HT-29, HCT-116, DLD-<br />

1, SW480) and two gastric cancer cell lines (MKN-45, AGS) for RNA<br />

and protein expression levels (RT-PCR, Western blot, ELISA, FACS).<br />

30 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Different viability and apoptosis assays were performed in the tumour<br />

cells, which were incubated with Moguntinones and different cytostatic<br />

drugs. Additionally, intracellular signalling pathways were analysed.<br />

In vitro data were further verified in a human xenograft NOD/SCID<br />

mouse model.<br />

Results. Moguntinones showed clear anti-angiogenic effects in HET-<br />

CAM assays and inhibitory activities in IC50 kinase assays. After generating<br />

additional substances with little structural changes and better<br />

biological effects, these Moguntinones alone induced apoptosis only in<br />

higher concentrations (>10 µM). Furthermore, stronger synergistic effects<br />

for induction of apoptosis were observed in lower concentrations<br />

(


nificant difference between the two groups in the later request for these<br />

offers.<br />

Additionally, a remarkable relation between education and knowledge<br />

of psychosocial-help offers was found. Patients with a higher level of<br />

education also showed a better knowledge about the offers, independent<br />

of their group membership. Concerning the request for help it could<br />

be shown that patients with higher degree of education profited more<br />

from the information given, therefore requesting professional help offers<br />

more often.<br />

In summary the findings demonstrate that systematically providing information<br />

about psychosocial-help offers can influence the knowledge<br />

of and the request for these offers. This seems to be especially the case<br />

for patients with higher levels of education.<br />

Discussed Poster – Supportivtherapie/<br />

Palliativmedizin<br />

D26 – 0079<br />

Decision making at the end of life: <strong>Cancer</strong> patients’ treatment<br />

preferences and prevalence of advance directives<br />

*J . Hilbig1,2 , *S . Sahm3,1 1Goethe-Universität, Institut für Geschichte und Ethik der Medizin, Frankfurt,<br />

Deutschland, 2Capio Mathilden Hospital, Klinik für Innere Medizin,<br />

Büdingen, Deutschland, 3Ketteler Krankenhaus, Medizinische Klinik I,<br />

Offenbach, Deutschland<br />

Introduction. Advanced directives (AD) are promoted as a means to ensure<br />

patient’s autonomy in case they are no longer able to decide themselves.<br />

Little is known about cancer patients’ capacity to express their<br />

treatment preferences in advance and the prevalence of ADs. As part<br />

of a project to evaluate attitudes with respect to ADs we examined treatment<br />

preferences and presence of ADs in cohort of cancer patients.<br />

Method. <strong>Cancer</strong> patients (CP) were interviewed using a structured<br />

questionnaire that had been established before (Sahm et al 2006). All<br />

CPs had proven diagnosis of neoplastic disease of various stages. The<br />

questionnaire included items inquring CPs treatment preferences (in<br />

case of severe non-curable disease), presence of an AD, as well as demographic<br />

data and information about CPs’ current state of health. Association<br />

with demographic and health data were calculated using χ2-test.<br />

Results. 100 CPs inlcuded, 51 male, mean age 68 yrs. Site of disease: 51<br />

colorectal, 8 pancreas, 1 CUP syndrome, 3 breast cancer, 3 ovary, 9 esophagus,<br />

8 stomach, 1 thyroid, 2 renal cell, 5 prostrate, 10 lung, 3 other<br />

(double specification possible). 11 (11%) CPs had an AD fulfilled. Treatment<br />

preferences with respect to particular options are given in table 1.<br />

The presence of AD was not associated to sex, general health state or<br />

frequency of pain (p>0.05).<br />

Tab. 1 D26-0079<br />

n Wish to<br />

be treated<br />

Refusal Not<br />

known<br />

i .v . fluid 100 73 2 25<br />

Artificial nutrition 100 16 35 49<br />

Antibiotic treatment<br />

for pneumonia<br />

100 36 28 36<br />

Analgesia if<br />

consciousness will<br />

be affected<br />

100 82 6 12<br />

Chemotherapy/<br />

dialysis<br />

100 31 19 50<br />

Artificial ventilation 100 3 70 27<br />

Conclusion. Prevalence of ADs amongst CPs is low. Many CPs are not<br />

able to make decisions in advance as they are unsure about their preferences.<br />

In case pain management will affect consciousness a considerable<br />

amount of responders refuse that treatment signifying retaining<br />

autonomy as the more important value. Artificial ventilation is rejected<br />

overwhelmingly while i.v. fluid is favoured by a majority. The high proportion<br />

of answer not known proves a lack of information amongst CPs<br />

which treatment may be comforting (or too burdensome) at the end of<br />

life. To have CPs fulfilling an AD may be not be of value if they have not<br />

been informed appropriately about the respective goals of various treatment<br />

options. Other strategies such as advanced care planning should<br />

be adopted to manage care and sustain CPs’ autonomy at the end of life.<br />

Discussed Poster – Supportivtherapie/<br />

Palliativmedizin<br />

D27 – 0269<br />

Optimism and habitual coping as predictors of group psychotherapy<br />

effectiveness for women after treatment for breast cancer<br />

*K . Teich1 , C . Hamm2 , A . Hamm1 , H . Freyberger2 1Institut für Psychologie, Physiologische und Klinische Psychologie/Psychotherapie,<br />

Greifswald, Deutschland, 2Universitätsklinikum, Klinik für<br />

Psychiatrie und Psychotherapie, Greifswald, Deutschland<br />

Purpose. After treatment for breast cancer psychotherapy helps enhancing<br />

the well-being and quality of life of the patients. Several programs<br />

have been conducted for this purpose but the effectiveness of psychological<br />

intervention on cancer patients’ outcomes varies considerably.<br />

The aim of the present study is to contribute to the improvement of psychological<br />

intervention programs by identifying individual differences<br />

that help understand who benefits from such programs and who does<br />

not. The study focused on differences in optimism, habitual coping, and<br />

social support (SS) and examined effects on health-related quality of life<br />

(HRQL), states of mood, anxiety, and depressive symptoms.<br />

Methods. Data were collected from twenty-four Western Pomeranian<br />

women (mean age: 50 years) receiving an adapted 10-week version of<br />

the cognitive behavioral therapy (CBT) based intervention program B-<br />

SMART by Antoni in a group setting. Participants filled in questionnaires<br />

assessing optimism, habitual use of coping strategies, and SS and<br />

completed pre- and post-assessments on HRQL, states of mood, anxiety,<br />

and depressive symptoms.<br />

Results. The intervention improved reports of vigour, physical, emotional,<br />

and functional well-being and reduced reports of anxiety, depressive<br />

symptoms, numbness, fatigue, and irritability. The effects remain<br />

stable after three months. Furthermore, amount of improvement depended<br />

on two personality variables. Correlation analysis showed that<br />

reduction in depressive symptoms was higher in the less optimistic patients<br />

(r=0.51), and in participants with a less avoidance (r=0.44) and a<br />

more emotion-oriented coping style (r=−0.43). Vigour increased more<br />

in participants with a less avoidance (r=−0.49) and a more emotionoriented<br />

coping style (r=0.42). Emotional well-being increased (r=0.49)<br />

and anxiety decreased (r=−0.45) more in patients with a emotion-oriented<br />

coping style. No such effects emerged for SS.<br />

Conclusions. The adapted CBT group intervention helped Western Pomeranian<br />

women in coping with the diagnosis breast cancer. The intervention<br />

was especially effective for less optimistic patients and participants<br />

with a less avoidance-oriented and a more emotion-oriented<br />

coping style. The results suggest that the effectiveness of psychological<br />

programs could be enhanced by accounting for differences in personality<br />

traits that eventually lead to tailored interventions for breast cancer<br />

patients.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

31


Abstracts<br />

Discussed Poster – Supportivtherapie/<br />

Palliativmedizin<br />

D28 – 0457<br />

Changes in quality of life, anxiety, and depression of women<br />

with and without breast-reconstruction undergoing oncological<br />

rehabilitation: A prospective multi-center study<br />

*J . Giesler1 , H .H . Bartsch1 , J . Weis1 1Klinik für Tumorbiologie, Institut für Reha-Forschung und Prävention,<br />

Freiburg, Deutschland<br />

Objectives. Research on quality of life and subjective well-being of women<br />

with breast cancer undergoing oncological rehabilitation after<br />

breast reconstruction is sparse. Similarly, not much is known about the<br />

specific needs and expectations these patients might have regarding rehabilitation.<br />

Therefore, we surveyed breast cancer patients with (n=129)<br />

and without (n=155) post-mastectomy breast reconstruction with respect<br />

to quality of life, anxiety, depression, and satisfaction with the<br />

outcome of surgery at the beginning, the end, and 6 months after the<br />

end of rehabilitation in 7 rehabilitation clinics.<br />

Method. Quality of life was measured by the QLQ C-30 and the BR-<br />

23 of the EORTC, anxiety and depression were assessed by the HADS.<br />

Quality of life facets specifically related to breast reconstruction were<br />

measured through items addressing sequelae of reconstruction as well<br />

as patients’ satisfaction. In addition, information on selected medical<br />

and demographic variables was obtained. Data were analyzed by 2 (with<br />

vs. without breast reconstruction) ×2 (time of assessment) repeated<br />

measures ANOVAs. Since patient groups differed by age (M=50.9 vs.<br />

M=56.4 years, p


Versorgungsstrukturen/Qualitätssicherung<br />

Discussed Poster – Versorgungsstrukturen/<br />

Qualitätssicherung<br />

Abstract withdrawn<br />

D30 – 0073<br />

Disclosing information about randomized clinical trials: A difficult<br />

and time consuming tasks for oncologists – results of a time<br />

efficient communication skills training evaluated in randomized<br />

controlled design<br />

*A . Wünsch1 , T . Gölz1 , G . Ihorst2 , H . Bertz3 , K . Fritzsche4 1Universitätsklinikum Freiburg, Psychoonkologischer Dienst der Abt .<br />

Psychosomatische Medizin und Psychotherapie sowie Innere Medizin 1 ,<br />

Freiburg, Deutschland, 2Universitätsklinikum Freiburg, Studienzentrum,<br />

Freiburg, Deutschland, 3Universitätsklinikum Freiburg, Innere Medizin I<br />

(Hämatologie und Onkologie), Freiburg, Deutschland, 4Universitätsklini kum Freiburg, Psychosomatische Medizin und Psychotherapie, Freiburg,<br />

Deutschland<br />

Background and Objectives. Disclosing information about randomized<br />

clinical trials (RCT) is one of the hardest communication tasks for physicians<br />

and it is time consuming. Physicians have to address complex<br />

information, e.g. explaining randomization, and they have to respect<br />

patients’ rights to come to a free and uncoerced decision concerning<br />

participation. A Communication Skills Training (CST) was developed<br />

to train physicians to convey key information about RCT adequately, to<br />

respect patients’ rights and to be time efficient. (1) Can a CST improve<br />

communication skills about conveying key information about clinical<br />

trials? (2) Does this CST change the amount of time needed for consultations<br />

about RCTs?<br />

Methods. We developed a time efficient CST, based on the experience of<br />

Jenkins (2005) and Brown (2004, 2007). First, individual learning goals<br />

of participating physicians were derived from a video assessment. Then,<br />

these learning goals were used in role play with actor-patients in a CST<br />

to train each physician. For evaluation, 40 physicians were randomly<br />

assigned to training or waiting control group. Training success was evaluated<br />

by blinded rater using a specific checklist to evaluate video-recorded<br />

standardized consultations with actor-patients. Duration of the<br />

consultation was assessed before and after the training.<br />

Results. (1) Results show significant improvements in content specific<br />

communication skills of trained physicians. (2) By the time of the<br />

conference final data about time changes of these consultations will be<br />

presented.<br />

Conclusions. The developed CST is the first CST, which can show improvements<br />

in communication skills conveying key information about<br />

clinical trials evaluated in a randomized controlled design. It addresses<br />

ethical and legal standards, patient needs in understanding complex<br />

information and especially physicians’ needs in having a time efficient<br />

training for this difficult matter. This CST should be integrated as a<br />

standard training for physicians who disclose information about RCT.<br />

Discussed Poster – Versorgungsstrukturen/<br />

Qualitätssicherung<br />

D31 – 0173<br />

Quality assurance of oral Xeloda® chemotherapy by a mobile<br />

phone application<br />

*M . Welslau1 , S . Haase2 , A . Jakob3 , N . Marschner4 1 2 Praxis Dr . Klausmann, Dr . Welslau, Aschaffenburg, Deutschland, IFETH Ltd .<br />

& Co GbR, Hamburg, Deutschland, 3Gemeinschaftspraxis für Hämatologie<br />

& Onkologie Offenburg, Offenburg, Deutschland, 4Praxis für Interdisziplinäre<br />

Hämatologie & Onkologie, Freiburg, Deutschland<br />

Oral chemotherapy needs active cooperation of patient, physician and<br />

health personnel concomitant with time-consuming elucidation and<br />

supervision to assure effective therapy. The mobile phone-based project<br />

P-com-X was started to support patients suffering from colon-CA, gastric-CA,<br />

and mamma-CA to provide therapeutic safety during Capecitabine<br />

(Xeloda®) oral chemotherapy. Real-time monitoring by a mobile<br />

phone may improve compliance and sense of therapy safety along with<br />

less personnel deployment.<br />

From 03/2008 to 03/2009 n=17 patients (3m/14f, age range 23–87 years)<br />

treated by Xeloda® of its approved indication in 4 oncologic centres in<br />

<strong>German</strong>y (<strong>Berlin</strong>, Duisburg, Freiburg, Aschaffenburg) were evaluated<br />

in this study. Two patients were in adjuvant therapy, 7 patients in<br />

first-line (metastasized), 6 patients in second-line (metastasized) and<br />

2 patients were in third-line treatment or more. Ten patients received<br />

monotherapy, 7 patients combination therapy (CAPOX, CAPIRI, Bevacizumab,<br />

Xeloda®/Herceptin®, Xeloda®/Lapatinib).<br />

Customary mobile phones were programmed with specially developed<br />

Xeloda® documentation software. Within this software patients recorded<br />

general condition, side effects and their feeling of mentoring by the<br />

mobile phone application twice daily. Real-time data submission to the<br />

supervising medical centre allowed direct call-back by the physician if<br />

intervention was required. The project was approved by the Bavarian<br />

Chamber of Physicians Ethical Committee. All patients gave written<br />

informed consent.<br />

2546 treatment days from 17 patients were evaluable. This corresponds<br />

to 119 cycles of Xeloda® treatment (3–14 cycles) while the documentation<br />

time varied between 49–267 days. For general condition data evaluation<br />

revealed no difference between treatment days and treatment-free interval.<br />

Due to adverse effects intervention was necessary only in 7.7% of<br />

treatment days and hospitalisation could be avoided during the surveillance.<br />

Compliance amounted to 100%. The mobile phone application<br />

allowed quick and realistic record of patients’ quality of life.<br />

Patients felt safe and well assisted on 98% of all reviewed days during<br />

Xeloda® therapy by the mobile phone application. None of the elderly<br />

patients reported about handling problems. Evaluation of the therapy<br />

monitoring by the mobile phone application demonstrated considerably<br />

improvement of compliance and allowed rapid intervention at arising<br />

toxicities. Furthermore, it showed multicentre applicability.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

33


Abstracts<br />

Discussed Poster – Versorgungsstrukturen/<br />

Qualitätssicherung<br />

D32 – 0193<br />

Quality of life in patients with thyroid cancer during rehabilitation<br />

compared to the <strong>German</strong> general population<br />

*S . Singer1 , T . Lincke2 , E . Gamper3 , K . Bhaskaran4 , S . Schreiber5 , A . Hinz5 ,<br />

T . Schulte6 1Bergische Universität Wuppertal, Gesundheitspsychologie, Wuppertal,<br />

Deutschland, 2Universität Leipzig, Nuklearmedizin, Leipzig, Deutschland,<br />

3 4 Medizinische Universität, Innsbruck, Österreich, London School of Hygiene<br />

and Tropical Medicine, Epidemiology, London, UK, 5Universität Leipzig,<br />

Medizinische Psychologie, Leipzig, Deutschland, 6Rehabilitation Clinic, Bad<br />

Oexen, Deutschland<br />

Background. Since patients with thyroid cancer have a very good prognosis<br />

overall, clinicians may often assume that their quality of life is<br />

comparable to the general population. We hypothesized that quality of<br />

life of thyroid cancer patients is lower compare to the general population<br />

while controlling the effect of age and gender.<br />

Methods. At the beginning of their stay at an inpatient rehabilitation clinic,<br />

a cohort of n=121 patients with thyroid cancer were assessed using<br />

the quality of life core questionnaire of the European Organisation for<br />

Research and Treatment of <strong>Cancer</strong> (EORTC QLQ-C30). Data for comparison<br />

were derived from a representative <strong>German</strong> community sample<br />

with n=2037.<br />

Results. The patients reported significantly more problems than the<br />

community sample participants independently of gender and age effects<br />

in all but two domains, namely constipation and diarrhoea. The<br />

strongest effects of the group (patients vs. general population) were<br />

found in the following domains: insomnia (B=−43.7, p


elevant, up-to-date, comprehensible, free of charge, with the opportunity<br />

to speak to somebody. Few have used independent counselling<br />

and information services, but 37–45% would do so if they needed information<br />

again.<br />

Conclusions. The internet is already a major source of health information,<br />

but does not provide tailored information and has not widely reached<br />

the older age groups. Overall person to person settings, first of all<br />

with a doctor, are preferred. Counselling services can come up to that<br />

preference, too. They have to stress independence and to cover a broad<br />

range of topics, including complementary medicine, to reach the potential<br />

target groups. People of younger age and lower education, especially<br />

if not affected in any way, seem to have no considerable interest in cancer<br />

related information and don’t seek it.<br />

Discussed Poster – Versorgungsstrukturen/<br />

Qualitätssicherung<br />

D35 – 0468<br />

Proxy assessment of quality of life (QoL) before and after radiotherapy<br />

for brain metastases: results of a prospective study<br />

using the DEGRO brain module<br />

*D . Steinmann1 , D . Vordermark2 , H . Geinitz3 , G . Ernst4 , M . Hipp5 , M . Theodorou3<br />

, A . Bayerl6 , U . Eichenseder-Seiss6 , H .-J . Wypior7 , R . Aschoff8 , C . Schäfer5 1 2 MHH, Strahlentherapie, Hannover, Deutschland, M .-Luther-Universität,<br />

Strahlentherapie, Halle/Saale, Deutschland, 3TU, Strahlentherapie, München,<br />

Deutschland, 4MHH, Medizinische Psychologie, Hannover, Deutschland,<br />

5Universität, Strahlentherapie, Regensburg, Deutschland, 6Hospital, Strahlentherapie, Krems, Österreich, 7Hospital, Strahlentherapie, Landshut,<br />

Deutschland, 8St .-Josef-Hospital, Strahlentherapie, Gelsenkirchen-Horst,<br />

Deutschland<br />

Purpose. Quality of life (QoL) studies in patients undergoing palliative<br />

cancer treatment are difficult to perform due to poor performance status<br />

of patients and their limited ability to complete questionnaires. Proxies<br />

of such patients could give useful informations about patients’ QoL.<br />

We applied a newly developed questionnaire, the DEGRO brain module<br />

(DBM), in a prospective QoL study of patients undergoing radiotherapy<br />

for brain metastases and compared results to scores obtained with validated<br />

patient-completed instruments.<br />

Materials and methods. From 01/2007 to 06/2010 n=166 patients with<br />

previously untreated brain metastases were recruited at 14 centers in<br />

<strong>German</strong>y and Austria. The EORTC-QLQ-C15-PAL and the brain module<br />

BN20 were used to assess QoL in patients at the start of treatment<br />

(T0) and at 3 months (T3mo). At the same timepoints 141 of their proxies<br />

estimated the QoL with the new DEGRO brain module (DBM), a tenitem<br />

questionnaire rating the general condition as well as functions and<br />

impairment by symptoms in areas relevant to patients with brain metastases.<br />

QoL scores were compared between patients and their proxies as<br />

well as between the two timepoints by calculation of the Spearman-Rho<br />

correlation coefficient and by comparison of group means.<br />

Results. At T3mo, 85 of 141 patients (60%) with initial response by a<br />

proxy were alive. 67 of these patients (79% of 3-month survivors) and<br />

65 proxies completed the second set of questionnaires. After 3 months,<br />

QoL significantly deteriorated in all items of proxy-assessed QoL except<br />

headache. Correlations between self-assessed and proxy-assessed QoL<br />

were high in single items like nausea, headache and fatigue and in total<br />

scores of the whole questionnaires at both points in time (r=0.57–0.78).<br />

Conclusions. The high correlation between self assessment and proxy<br />

ratings for the total questionnaire and for single items of physical symptoms<br />

as well as a similar change over time for both approaches suggest<br />

that in patients with brain metastases, proxy assessment using the DBM<br />

questionnaire can be an alternative approach to obtain QoL data when<br />

patients are unable to complete questionnaires themselves.<br />

General Poster<br />

GI-Tumoren<br />

0017<br />

The Janus face of neoadjuvant therapy: the pelvic-perineal<br />

morbidity<br />

*J . Bunse1 , H . Hollerbuhl1 , F . Fritze1 , K . Gellert1 1Sana Klinikum Lichtenberg, Klinik für Allgemein- und Viszeralchirurgie,<br />

<strong>Berlin</strong>, Deutschland<br />

Introduction. In elevating neoadjuvant radiochemotherapy to being the<br />

standard therapy for localized advanced rectal cancer (S3-guidelines),<br />

the risks and side effects of biologically highly-active therapy inevitably<br />

accumulate and pose a significant challenge to both surgeon and<br />

wound therapist. Both the immunosuppression caused by the cancer<br />

and increasingly the localized radiation treatment effects of aggressive<br />

neoadjuvant therapy regimens play a part in the general postoperative<br />

risks. Other relevant risk factors are catabolism, which is present<br />

in almost all cases, hypoproteinemia and age-related multi-morbidity<br />

(such as atherosclerosis, diabetes and hypertonus). With regard to modern<br />

wound management, it seems necessary to adjust the therapeutic<br />

strategy – based on good documentation – to the individual needs of<br />

the patient, taking into consideration the methods available for wound<br />

therapy such as VAC therapy, biological surgery and novel wound dressings.<br />

It is equally important, however, to balance out the catabolic state<br />

and achieve prompt patient mobilization. A positive physician-patient<br />

relationship is required during long periods of hospitalization in order<br />

to maintain good adherence.<br />

Method. 120 patients (2004–2008) with rectal cancer were retrospectively<br />

divided into two groups: patients (n=60) with neoadjuvant therapy<br />

[short-term radiotherapy (RT) and long-term radiochemotherapy<br />

(RCHT) respectively] vs. patients who had undergone surgery without<br />

neoadjuvant therapy. From the period between 2008 and 2010, four patients<br />

with particularly complicated sacral wound healing were retrospectively<br />

extracted.<br />

Results. The evaluation of the two groups (neoadjuvant vs. non-adjuvant)<br />

shows an increase of almost double the rate of disorders of wound<br />

healing in the group of patients with rectum amputation and pre-treatments.<br />

A particularly vulnerable group in terms of complicated healing<br />

processes is women, as the anatomical boundary between the vagina<br />

and the rectum (the rectovaginal fascia) may fall victim to the oncological<br />

resection or debridement subsequent to a sacral cavity infection,<br />

resulting in the formation of a cloaca.<br />

Discussion. The irradiated infected sacral cavity poses a big challenge to<br />

surgeons and patients and requires courses of therapy adjusted to the<br />

individual which include surgical debridement as well as all available<br />

wound therapy options. Success is usually achieved only very slowly and<br />

often requires changes in strategy at a very early stage. The psycho-social<br />

guidance of the patients makes very high demands of the attending<br />

team of doctors. This can only be ensured by an interdisciplinary team.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

35


Abstracts<br />

0051<br />

Trastuzumab in combination with standard chemotherapy as<br />

first-line treatment for patients with HER2-positive metastatic<br />

gastric cancer: safety findings from the <strong>German</strong> non-interventional<br />

observation study HerMES<br />

*S .-E . Al-Batran1 , C .V . Hannig2 , D . Pott2 , C . Tirier2 , C . Lerchenmüller3 , E . Moorahrend4<br />

, H . Kröning5 , S . Hegewisch-Becker6 , V . Petersen7 , M . Königsmann8 ,<br />

E . Böcher9 , T . Hamm9 , K .-U . Däßler10 , M . Groschek11 , C . Maintz11 , C . Hinske11 ,<br />

W . Schneider-Kappus12 , V . Kächele12 1Krankenhaus Nordwest, Klinik für Onkologie und Hämatologie, Frankfurt,<br />

Deutschland, 2Schwerpunktpraxis für Hämatologie und Onkologie, Bottrop,<br />

Deutschland, 3Gemeinschaftspraxis für Hämatologie und Onkologie,<br />

Münster, Deutschland, 4Onkologische Praxis, Porta Westfalica, Deutschland,<br />

5Schwerpunktpraxis für Hämatologie und Onkologie, Magdeburg,<br />

Deutschland, 6Internistische Praxisgemeinschaft Eppendorf, Hamburg,<br />

Deutschland, 7Onkologische Schwerpunktpraxis, Heidenheim, Deutschland,<br />

8Onkologische Schwerpunktpraxis und Tagesklinik am Diakoniekrankenhaus<br />

Henriettenstiftung, Hannover, Deutschland, 9Gemein schaftspraxis, Soest, Deutschland, 10Onkologische Schwerpunktpraxis,<br />

Freital, Deutschland, 11Hämatologisch-Onkologische Praxis, Würselen,<br />

Deutschland, 12Praxis für Hämatologie und interdisziplinäre Onkologie,<br />

Ulm, Deutschland<br />

Background. The ToGA trial, an international multicenter phase III clinical<br />

study involving 24 countries globally, has recently shown that the<br />

anti-HER2 humanized monoclonal antibody trastuzumab is effective<br />

in prolonging survival in HER2-positive carcinoma of the stomach and<br />

the gastroesophageal junction (GEJ). However, few data are available on<br />

trastuzumab when used as part of routine clinical practice in <strong>German</strong>y.<br />

Methods. This non-interventional observation study was conducted to<br />

evaluate the efficacy, safety and feasibility of trastuzumab in previously<br />

untreated patients with HER2-positive metastatic gastric cancer (MGC)<br />

in <strong>German</strong>y. Data from all patients with MGC who received trastuzumab<br />

were recorded in detail on standardized forms (eCRF) until they<br />

had developed disease progression or for a maximum of 12 months of<br />

trastuzumab therapy.<br />

Results. Between April 2010 and June 2011, data from 50 patients were<br />

collected. All patients were evaluable for safety. Baseline patient characteristics<br />

were as follows: median age 59.5 years (range 29–88); gender<br />

(male 66%; female 34%); ECOG PS (0: 28%; 1: 46%; 2: 16%; 3: 6%); distant<br />

metastases (92%); liver metastases (48%), lymph node metastases (38%);<br />

peritoneum metastases (24%); lung metastases (12%); bone metastases<br />

(12%). The median duration of trastuzumab treatment was 3.3 months<br />

(range 0–10.6). The median trastuzumab dose per patient and cycle was<br />

6.2 mg/kg BW. Only 27% of patients received trastuzumab according to<br />

the label in combination with cisplatin and fluoropyrimidine (5-FU or<br />

capecitabine), the remainder received trastuzumab either as monotherapy<br />

(8%) or in other combinations: cisplatin, 5-FU and leukovorin (12%);<br />

5-FU, leukovorin, oxaliplatin and docetaxel (10%); 5-FU, leukovorin and<br />

oxaliplatin (8%); capecitabine (6%); 5-FU, cisplatin and docetaxel (4%).<br />

The most common adverse events (AEs, all grades) were as follows:<br />

nausea (8%), diarrhoea (8%), vomiting (8%), and fatigue (6%). The most<br />

common grade 3/4 AEs were nausea (4%), vomiting (4%), fatigue (4%),<br />

diarrhoea (2%), and urinary tract infection (2%).<br />

Conclusions. Trastuzumab, administered either as monotherapy or in<br />

combination with standard chemotherapy, is well tolerated in the routine<br />

treatment of MGC. These findings support those from the ToGA<br />

trial and suggest that treatment with trastuzumab should be regarded<br />

as standard of care for patients with HER2-positive MGC.<br />

36 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0059<br />

Tumor response and clinical outcome in advanced gastrointestinal<br />

stromal tumors under sunitinib therapy: comparison of<br />

RECIST, Choi and volumetric criteria<br />

*N . Schramm1 , M . Schlemmer2 , E . Englhart1 , C . Becker1 , M . Reiser1 , F . Berger1 1Klinikum der Universität München, Institut für Klinische Radiologie, München,<br />

Deutschland, 2Klinikum der Universität München, Medizinische Klinik<br />

und Poliklinik III, München, Deutschland<br />

Purpose. For patients with metastatic gastrointestinal stromal tumor<br />

(GIST) under imatinib it has been demonstrated that radiological response<br />

according to Choi criteria also taking into account CT density<br />

changes correlates better than RECIST with early therapy response and<br />

disease-specific survival (DSS). Purpose of the study was the comparison<br />

of RECIST, Choi and volumetric radiological response in GIST-patients<br />

under 2nd-line-sunitinib-therapy with correlation to DSS.<br />

Methods. 20 patients with baseline-CT of the abdomen under imatinib<br />

obtained follow-up-CTs 3 months and 1 year after change to sunitinib.<br />

Therapy response was evaluated according to RECIST, Choi and volumetric<br />

criteria (PR: decrease ≥40%, PD: increase ≥33%). The response<br />

categories respectively were: partial response (PR), stable disease (SD)<br />

and progressive disease (PD). Response according to the different assessment<br />

systems was correlated to the DSS of the patients.<br />

Results. The mean DSS (in months) of the response groups 3 months<br />

after therapy change was: RECIST: PR (0/20); SD (17/20): 29.2 (months);<br />

PD (3/20) 11.6/Choi: PR (10/20) 27.9; SD (8/20) 26.4; PD (2/20) 13.5 /<br />

Volumetry: PR (4/20) 29.7; SD (11/20) 28.4; PD (5/20) 17.2. Reponse<br />

groups after 1 year of sunitinib showed the following mean DSS: RE-<br />

CIST: PR (3/20) 33; SD (9/20) 28.2; PD (8/20) 20.3 /Choi: PR (10/20) 21.3;<br />

SD (4/20) 39.6; PD (6/20) 23.9 /Volumetry: PR (6/20) 27.0; SD (5/20) 35.9;<br />

PD (9/20) 19.3. Patients classified as PR after 1 year according to Choi<br />

and volumetry had a shorter DSS than patients classified as SD.<br />

Conclusion. In our GIST-patient collective Choi and volumetric criteria<br />

could detect responders with prolonged survival time under sunitinib<br />

only in the early follow-up but not in the later course of disease. These<br />

results have to be verified in larger patient cohorts. Our data provide<br />

support for the assumption that Choi criteria might not be appropriate<br />

to select GIST-patients with prolonged survival in later follow-up examinations.<br />

0072<br />

Gene markers of progression of Barrett’s metaplasia to carcinoma<br />

*Q . Wang1 , M . Fehlker1 , M . Vieth2 , P .-M . Schlag3 , T . Wex4 , P . Malfertheiner4 ,<br />

W . Kemmner1 1 2 MDC-<strong>Berlin</strong> Buch, Surgical Oncology, <strong>Berlin</strong>, Deutschland, Klinikum<br />

Bayreuth, Pathology, Bayreuth, Deutschland, 3Charité – Universitätsmedizin,<br />

Comprehensive <strong>Cancer</strong> Center, <strong>Berlin</strong>, Deutschland, 4Magdeburg University, Gastroenterology, Magdeburg, Deutschland<br />

Background. The incidence of esophageal adenocarcinoma has increased<br />

strongly during the past 30 years and 5-year survival remained poor<br />

at approximately 20%. Esophageal adenocarcinoma develops through<br />

a multistage process. Barrett’s esophagus metaplasia is considered to<br />

be the key precursor lesion of esophageal adenocarcinoma. The aim of<br />

this study is to generate and validate biomarkers to stratify patients with<br />

Barrett’s esophagus in terms of their risk for developing cancer.<br />

Patients and methods. We studied gene expression profiling of 59 frozen<br />

specimens, consisting of esophageal squamous epithelium from 18<br />

healthy subjects, 20 specimens from patients with Barrett’s epithelium<br />

and 21 cases of esophageal Barrett’s adenocarcinoma, by whole genome<br />

microarray analysis. Laser capture microdissection technique was applied<br />

to procure cells from defined regions of Barrett’s metaplasia and<br />

esophageal Barrett’s adenocarcinoma. Microarray results were validated<br />

by quantitative real-time polymerase chain reaction (qRT-PCR) in


a second and independent cohort consisting of 12 healthy cases, 20 Barrett’s<br />

epithelium, 8 intermediate dysplastic BE closed to esophageal adenocarcinoma<br />

and 10 esophageal Barrett’s adenocarcinomas. Furthermore,<br />

immunohistochemistry was performed on a third independent<br />

cohort consisting of 12 normal squamous esophagus samples, 12 esophageal<br />

adenocarcinoma cases and 12 Barrett’s esophagus samples, five<br />

of which were close to esophageal Barrett’s adenocarcinoma, representing<br />

Barrett’s esophagus at high risk for developing adenocarcinoma.<br />

Results. Microarray analysis showed that 1176 genes were significantly<br />

differentially expressed in esophageal Barrett’s adenocarcinoma compared<br />

to squamous esophagus epithelium. In a second step, the expression<br />

profile of Barrett’s esophagus metaplasia was compared to esophageal<br />

Barrett’s adenocarcinoma and squamous epithelium resulting in a<br />

short list of 16 genes which were differentially expressed among all three<br />

groups. Hierarchical clustering of the samples based on the expression<br />

of these 16 genes allowed a clear discrimination of NE, BE and EAC.<br />

Validation of the microarray results in an independent patient cohort<br />

by qPCR confirmed these results. This analysis showed that in particular<br />

the genes CTHRC1, INHBA, PROCR and ADH7 were significantly<br />

differently expressed between NE, BE and EAC. Furthermore, immunohistochemistry<br />

showed that CTHRC1 and INHBA were only high in<br />

EAC and BE located close to EAC on protein level.<br />

Conclusions. This study identified novel biomarkers to predict esophageal<br />

Barrett’s adenocarcinoma at its Barrett’s esophagus precursor<br />

stage, not only in original cohort, but also in validation cohorts. These<br />

biomarkers can be determined by quantitative expression analysis,<br />

which will complement conventional semi-quantitative immunohistochemical<br />

analysis in the future. However, further efforts are needed to<br />

understand the contribution of these genes to Barrett’s carcinogenesis.<br />

0089<br />

Resection vs. transplantation as curative treatment options for<br />

hepatocellular carcinoma in cirrhosis – Systematic review and<br />

metaanalysis<br />

*A . Proneth1 , F . Zeman2 , S . Bhoorie3 , V . Mazzaferro3 , E .K . Geissler1 ,<br />

H .J . Schlitt1 , A .A . Schnitzbauer1 1Uniklinikum Regensburg, Klinik und Poliklinik für Chirurgie, Regensburg,<br />

Deutschland, 2Uniklinikum Regensburg, Zentrum für Klinische Studien,<br />

Regensburg, Deutschland, 3National <strong>Cancer</strong> Institute, Istituto Nazionale<br />

Tumori Fondazione IRCCS, Gastrointestinal Surgery and Liver Transplantation<br />

Unit, Milano, Italien<br />

Objective. To systematically review the literature on resection (Rx) and<br />

liver transplantation (LT) for hepatocellular carcinoma (HCC) in patients<br />

with Child A cirrhosis.<br />

Background. Hepatocellular Carcinoma is the fifth most neoplasm<br />

worldwide. Current standard curative therapeutic strategies include<br />

resection and liver transplantation with or without prior bridging with<br />

ablative procedures. Organ shortage leads to discussion whether HCC<br />

should be transplanted or whether resection can achieve similar results.<br />

Methods and aims. A systematic review of various databases (Pubmed,<br />

PICO, MEDLINE, Cochrane and Library for RCT) was performed. Studies<br />

investigating Rx vs. LT, and Rx or LT only, and in which patients<br />

were regarded to be both resectable and transplantable between 1998<br />

and 2011 were included in the analysis. The primary endpoint was overall<br />

survival (OS). Secondary endpoints were disease free survival (DFS)<br />

as well as prognostic factors (AFP, tumor size and number, micro- and<br />

macrovascular invasion, stadium of cirrhosis, MELD-score, bridging<br />

therapies etc.). The results should serve as a decision-making basis to<br />

either transplant or resect the patient primarily in case of HCC-diagnosis.<br />

Results. Database research revealed a total 843 hits. To date there is no<br />

existing randomized controlled trial (RCT) investigating Rx vs. Tx for<br />

HCC. A total of 71 publications were eligible for statistical evaluation.<br />

OS and DFS data for LT and Rx differ significantly between groups fa-<br />

voring LT. However, surrogate predictive markers for outcome reveal a<br />

lower microvascular invasion, a better differentiation, less microsatellites,<br />

smaller tumors and lower pre-treatment AFP values in patients<br />

being transplanted.<br />

Conclusion. Current evidence in literature does not allow a meaningful<br />

comparison between patient collectives undergoing Rx or LT for HCC.<br />

There are no data from randomized controlled trials. Analyses do not<br />

compare patients in a comparable tumor stadium. A RCT in patients<br />

without contraindications for transplantation or resection and comparable<br />

surrogate characteristics should be initiated investigating the<br />

hypothesis that resection of HCC achieves similar results than transplantation.<br />

0122<br />

Implementation of adjuvant treatment in routine care of colorectal<br />

cancer – data of a population-based sample<br />

*A . Schlesinger-Raab1 , S . Schrodi1 , R . Emeny1 , R . Eckel1 , G . Schubert-Fritschle1<br />

, J . Engel1 1Tumorzentrum München (TZM), Tumorregister München (TRM), München,<br />

Deutschland<br />

Introduction. In 2004, the first national S3 guideline for the diagnosis,<br />

therapy and aftercare of colorectal patients was implemented in <strong>German</strong>y,<br />

and the first update was released in 2008. Adjuvant chemotherapy is<br />

recommended in colon cancer with UICC stage III. Neoadjuvant radiation<br />

therapy is recommended in rectal cancer with UICC II/III.<br />

Objective. The study aim was to evaluate guideline compliance for adjuvant<br />

treatment of patients with colorectal cancer and to determine<br />

possible influences on survival in a population-based sample.<br />

Methods. The Munich <strong>Cancer</strong> Registry (MCR) records all cancer patients<br />

treated in the registration area that covers upper Bavaria, with<br />

4.5 million inhabitants, since 2007. Data from almost 45,000 cases of<br />

patients with colorectal cancer, diagnosed between 1988 and 2008 were<br />

analysed. The distribution of adjuvant therapies was analysed in regard<br />

to associations with time, age and tumour-related factors. Survival as<br />

outcome parameter was examined by the Kaplan-Meier method and<br />

Cox proportional hazard modelling.<br />

Results. Stratification into two decades (1988–1997, 1998–2002) showed<br />

the demographic ageing, the proportion of patients 80 years and older<br />

increases from 15 to 20% over these two time periods. The proportion of<br />

male patients increased as well from 53 to 56%. UICC stage distribution<br />

was quite stable. Documentation improved continuously; missing values<br />

in tumour-related variables were less than 10%. The realisation of<br />

adjuvant chemotherapy in colon cancer stage III improved from 30%<br />

in the years before 1998 to almost 50% after 1998 and is still improving<br />

year by year. Only 16% of stage II rectal cancer patients were treated with<br />

neoadjuvant radiation before 1998 and about 70% after 1998. In stage III<br />

patients, the proportions improved from 53% to about 80%. A slight<br />

improvement in relative survival can be seen in rectal cancer patients:<br />

about 3% points in 10-year relative survival. Thus, since 1998 colon and<br />

rectal cancer have the same prognosis with 65% and 57% probability for<br />

5- and 10-year relative survival, respectively.<br />

Conclusion. The guideline recommendations concerning adjuvant and<br />

neoadjuvant therapies continue to be brought into practice, especially<br />

in UICC III in rectal cancer patients. Their increasing implementation<br />

may be a reason for improvement in survival in rectal cancer patients.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

37


Abstracts<br />

0131<br />

The impact of multimodal treatment on long-term quality of life<br />

in patients with rectal carcinoma. Results of the CAO/ARO/AIO-94<br />

study<br />

*S . Merkel1 , M .-T . Villanueva1 , W . Hohenberger1 , T . Liersch2 , H . Becker2 ,<br />

R . Raab3 , C . Rödel4 , R . Sauer5 1Universitätsklinikum Erlangen, Chirurgische Klinik, Erlangen, Deutschland,<br />

2Universitätsmedizin Göttingen, Klinik für Allgemein- und Viszeralchirurgie,<br />

Göttingen, Deutschland, 3Klinikum Oldenburg, Klinik für Allgemeinund<br />

Visceralchirurgie, Oldenburg, Deutschland, 4Universitätsklinikum Frankfurt am Main, Klinik für Strahlentherapie und Onkologie, Frankfurt<br />

am Main, Deutschland, 5Universitätsklinikum Erlangen, Strahlenklinik,<br />

Erlangen, Deutschland<br />

Introduction. The <strong>German</strong> multicenter study CAO/ARO/AIO-94 compared<br />

preoperative chemoradiotherapy with postoperative chemoradiotherapy<br />

(CRT) in locally advanced rectal cancer. Preoperative CRT<br />

was found to improve local control and was associated with reduced<br />

acute toxicity but did not improve survival. The aim of our study was<br />

to compare quality of life in the long-term survivors after a median of<br />

11 years (range: 8–15 years).<br />

Patients and methods. Until 2010 of 799 participating patients, 340 patients<br />

(42.6%) had died and 8 patients (1.0) were lost to follow-up. 359<br />

(79.6%) of the 451 long-term survivors (8–15 years) completed the quality<br />

of life questionnaires of the EORTC, the QLQ-C30 and its new colorectal<br />

module, the QLQ-CR29: 190 patients who had preoperative CRT,<br />

109 patients who received postoperative CRT and 60 patients of the<br />

postoperative treatment arm without receiving CRT due to overstaging,<br />

understaging, postoperative complications or denial. The QLQ-CR29<br />

permits a combined analysis of patients with and without a stoma even<br />

in bowel function. Median age of the 237 men and 122 women was 71 years<br />

(range: 43–88 years). For comparisons the Mann-Whitney U test and<br />

the Kruskal-Wallis one-way of variance were used.<br />

Results. Significant differences between the three groups were found in<br />

social functioning, diarrhea, stool frequency, faecal incontinence, flatulence,<br />

bloated feeling, embarrassing bowel movements, abdominal<br />

pain, urinary frequency and dysuria. Patients without CRT indicated<br />

more favourable statements in most measures, followed by patients with<br />

preoperative CRT, while patients with postoperative CRT stated the<br />

most unfavourable results. Impotence was rated highest of all symptom<br />

scales but without differences between the primary treatment groups.<br />

Age, sex, tumour site and stoma were found to be additional factors influencing<br />

significantly quality of life in several aspects.<br />

Conclusion. Multimodal treatment, especially preoperative CRT reduces<br />

the rate of locoregional recurrences. The indication for multimodal<br />

treatment has to be based on evidence based criteria, because long-term<br />

survivors complain about reduced quality of life, especially with respect<br />

to bowel function and defecation. However, long-term quality of life was<br />

found to be superior after preoperative CRT when compared to postoperative<br />

CRT.<br />

38 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0133<br />

Locoregional recurrence in rectal carcinoma: Long-term results<br />

of the <strong>German</strong> multicenter study CAO/ARO/AIO-94<br />

*S . Merkel1 , M .-T . Villanueva1 , W . Hohenberger1 , T . Liersch2 , H . Becker2 ,<br />

R . Raab3 , C . Rödel4 , R . Sauer5 1Universitätsklinikum Erlangen, Chirurgische Klinik, Erlangen, Deutschland,<br />

2Universitätsmedizin Göttingen, Klinik für Allgemein- und Viszeralchirurgie,<br />

Göttingen, Deutschland, 3Klinikum Oldenburg, Klinik für Allgemeinund<br />

Visceralchirurgie, Oldenburg, Deutschland, 4Universitätsklinikum Frankfurt am Main, Klinik für Strahlentherapie und Onkologie, Frankfurt<br />

am Main, Deutschland, 5Universitätsklinikum Erlangen, Strahlenklinik,<br />

Erlangen, Deutschland<br />

Introduction. The <strong>German</strong> multicenter study CAO/ARO/AIO-94 of locally<br />

advanced rectal cancer showed in 2004 after a median follow-up of<br />

46 months in the intention-to-treat-analysis, that preoperative chemoradiotherapy<br />

(CRT) compared with postoperative CRT improved local<br />

control (6% vs 13% locoregional recurrences) and reduced acute toxicity,<br />

but did not improve survival (74% vs 76%). Now we report long-term<br />

results after a median follow-up of 11 years (8–15 years).<br />

Methods. Until 2010 of 799 participating patients, 340 patients (42.6%)<br />

had died and 8 patients (1.0) were lost to follow-up. 764 patients treated<br />

with curative intent (M0/M1, R0/R1) were selected for analysis: 386 patients<br />

after preoperative CRT, and 378 in the postoperative CRT arm<br />

(132 of these did not receive any postoperative treatment due to overstaging,<br />

understaging, complications or denial. An as-treated analysis was<br />

performed to estimate 10-year rate of locoregional recurrences and to<br />

evaluate treatment and prognosis of those patients.<br />

Results. The 5- and 10-year rates of locoregional recurrences of all patients<br />

were 7.2% and 8.5%. These rates differed significantly (p=0.008)<br />

between the preoperative CRT (4.2% and 6.3%) and the postoperative<br />

CRT arm (10.4% and 10.7%) after the long-term follow-up. In multivariate<br />

analysis, R1-resection was the most adverse factor for locoregional<br />

recurrences. Late locoregional recurrences (≥60 months after primary<br />

treatment) were seldom in our study with 7 out of 58 recurrences: five in<br />

the preoperative arm and two in the postoperative CRT arm. In general,<br />

the treatment choice for locoregional recurrences depended on primary<br />

treatment. Radiotherapy or CRT was administered in 7/41 patients (17%)<br />

who had former CRT and in 12/17 patients (71%) with primary surgery<br />

alone (p


0134<br />

Hyperthermia induced by nanotherapy for oesophageal and<br />

pancreatic cancer<br />

*B . Rau1 , M . Steinbach2 , M . Hünerbein2 , J .-T . Ollek3 , A . Jordan3 1Charité Campus Mitte, Klinik für Allgemein-, Thorax- und Gefäßchirurgie,<br />

<strong>Berlin</strong>, Deutschland, 2Helios Klinken Buch, <strong>Berlin</strong>, Deutschland, 3Magforce, <strong>Berlin</strong>, Deutschland<br />

Background. In the literature is postulated, that hyperthermia enhances<br />

the effect of radio- and chemotherapy. Intra-tumorally instilled superparamagnetic<br />

ironoxide nanoparticles (NanoThermR) inducing localized<br />

hyperthermia are a potential option to further improve cancer<br />

treatment. Oesophageal (OC) and pancreatic cancer (PC) have a poor<br />

outcome regarding overall and progression free survival. The objective<br />

of this study was to show that NanoThermR can be applied safely in<br />

incurable OC and PC and effectively induce interstitial hyperthermia.<br />

Methods. The method comprised direct injection of the nanoparticles<br />

into the tumor. Instillation was controlled by CT scan prior to exposure<br />

to the magnetic field. Hyperthermia was applied synchronously or<br />

directly before chemotherapy. Patients were subsequently exposed to<br />

an alternating magnetic field which stimulates the nanoparticles causing<br />

interstitial heat needed for effective thermotherapy. Altogether<br />

17 patients with OC (11) and PC (6) were treated with nanoparticles in<br />

combination with chemo- or chemoradiotherapy. Temperature was<br />

monitored via thermometry catheter placed at the tumor. Treatment<br />

emergent toxicities were records according to the common Toxicity<br />

Criteria (CTC).<br />

Results. Mean tumor volume was 27.3 and 42.3 cm3 in OC and PC, respectively.<br />

Placement of the nanoparticles was feasible in all tumors.<br />

Temperature at the tumor could not be measured in OC. Instead mean<br />

simulated temperatures based on the distribution of the nanoparticles<br />

determines by post-instillation CT was 42.8°C. In PC temperatures<br />

were successfully measured at the tumor yielding 40.0°C on average.<br />

Occurrence of the treatment emergent CTC grade 3 and 4 toxicity was<br />

low. Hot spots during treatment were observed in every patient.<br />

Conclusion. NanoThermR therapy in combination with chemo- or chemoradiotherpy<br />

was feasible and reasonably well tolerated even in this<br />

late-stage patient population. To optimize the NanoThermR application<br />

procedure and to improve the quality of temperature measurement as<br />

well as to show efficacy of the therapy in combination with current therapy<br />

options in OC and PC further investigations are planned.<br />

0141<br />

Identification of predictive molecular markers for chemoradiation<br />

by ICPL proteom amalysis in rectal carcinomas<br />

*R . Croner1 , M . Sevim2 , P . Jo3 , V . Schellerer1 , E . Naschberger4 , M . Stürzl4 ,<br />

W . Hohenberger1 , F . Lottspeich2 , J . Kellermann2 1Universitätsklinikum Erlangen, Chirurgische Klinik, Erlangen, Deutschland,<br />

2Max-Planck Institut Martinsried, Proteinanalytik, Martinsried, Deutschland,<br />

3Universitästklinkum Göttingen, Chirurgische Klinik, Göttingen,<br />

Deutschland, 4Universitästklinkum Erlangen, Abteilung für Molekulare und<br />

Experimentelle Chirurgie, Erlangen, Deutschland<br />

Background. Neodajuvant chemoradiation (CRT) is an established procedure<br />

in rectal carcinomas to increase sphincter preservation and to<br />

decrease local tumor recurrence (9.6%). But only 53% of the carcinomas<br />

respond with tumor regression, while 8–15% show complete response.<br />

Molecular markers may be an option to identify responder from nonresponder<br />

prior to CRT.<br />

Material and methods. Tumor biopsies from 20 rectal carcinomas were<br />

harvested prior to CRT (CAO/ARO/AIO-04). After laser microdissektion<br />

(LCM) of the specimens, proteins were isolated. The samples of CRT<br />

responders (rCRT; n=10) and CRT non reponders (nCRT; n=10) were<br />

pooled regarding their postoperative histopathological tumor regression<br />

rate (Dworak). Isotope Coded Protein Label (ICPLTM) was perfor-<br />

med of the LCM specimen’s proteom to identify differential proteins<br />

between rCRT and nCRT.<br />

Results. From all tumor biopsies a sufficient amount of material could be<br />

harvested during LCM to perform ICPLTM. The isolated protein lysate<br />

was of good quality and ICPLTM worked well. We identified 43 differentially<br />

expressed proteins between the rCRT and nCRT group. These<br />

proteins belonged to the tumor stroma, immune system and gluthation<br />

metabolism.<br />

Conclusions. ICPLTM is a sufficient technology to identify differentially<br />

expressed proteins in rectal carcinoma biopsies. The identified markers<br />

may be potential candidates for CRT prediction, but their clinical value<br />

has to be validated during further analysis.<br />

0151<br />

Evaluation of sorafenib in combination with local microtherapy<br />

guided by gadolinium-EOB-DTPA enhanced MRI in patients with<br />

inoperable hepatocellular carcinoma<br />

*J . Ricke1 , K . Schütte2 , O . Rosmorduc3 , A .L . Jacob4 , J . Lammer5 , C . Verslype6 ,<br />

B . Sangro7 , J . Walecki8 , H .-J . Klumpen9 , B . Peynircioglu10 , S . Yalcin11 , C . Bartolozzi12<br />

, H . Amthauer1 , P . Malfertheiner2 1Universität Magdeburg/ Medizinische Fakultät, Radiologie und Nuklearmedizin,<br />

Magdeburg, Deutschland, 2Universität Magdeburg, Klinik für<br />

Gastroenterologie, Hepatologie und Infektiologie, Magdeburg, Deutschland,<br />

3Hôpital Saint Antoine, Service d’Hepatologie, Paris, Frankreich, 4Uni versitätsspital, Klinik für Radiologie und Nuklearmedizin, Basel, Schweiz,<br />

5Medizinische Universität, Interventional Radiology, Wien, Österreich,<br />

6 7 Medizinische Universität, Digestive Oncology, Wien, Österreich, Clinica<br />

Universitaria and CIBEREHD, Liver Unit, Pamplona, Spanien, 8Centralny Szpital Kliniczny, MSWiA, Department of Radiology, Warszawa, Polen,<br />

9 10 Academic Medical Center, Oncology, Amsterdam, Niederlande, Haceteppe<br />

University of Medicine, Department of Radiology, Ankara, Türkei,<br />

11Haceteppe University of Medicine, Medical Oncology, Ankara, Türkei,<br />

12University of Pisa, Department of Radiology, Pisa, Italien<br />

Background. Hepatocellular carcinoma (HCC) is the fifth most common<br />

cancer worldwide with an increasing incidence rate. Tumour stage<br />

at diagnosis, liver function and general health status are the most important<br />

prognostic factors for the individual patient. Treatment strategy<br />

in early HCC aims at the local removal of the tumor and represents a<br />

potentially curative treatment option [resection, liver transplantation<br />

or local ablation using percutaneous ethanol injection (PEI) or radiofrequency<br />

ablation (RFA)]. In intermediate and advanced stages of<br />

HCC patients receive treatment with palliative intent [transarterial<br />

chemoembolisation (TACE), Yttrium-90-radioembolisation (SIRT)<br />

or systemic therapy with sorafenib]. Studies with the combined use of<br />

locoregional and systemic therapy with their potential of a beneficial<br />

synergism are few and conducted in a small number of patients.<br />

Methods. This phase II study (SORAMIC) is composed of three sub-studies<br />

with the following primary objectives: (1) In patients in whom local<br />

ablation is appropriate to determine if sorafenib in combination with<br />

radiofrequency ablation (RFA) prolongs the time-to-recurrence in comparison<br />

with RFA + placebo. Primary endpoint (PEP): time to recurrence,<br />

n=290 pts. (2) In patients in whom RFA is not appropriate (palliative<br />

treatment group) to determine if the combination of yttrium-90-microspheres<br />

(SIRT) + sorafenib improves the overall survival in comparison<br />

to sorafenib alone. PEP: overall survival, n=375 pts. (3) To test the<br />

diagnostic and staging accuracy of Gd-EOB-DTPA enhanced MRI with<br />

contrast-enhanced multisclice CT. PEP: correct stratification of patients<br />

to a palliative versus local ablation treatment strategy; n=830 pts.<br />

Results. This trial has already started with 34 out of 830 patients enrolled<br />

until July, 18th 2011 and will recruit in 41 European centers in 14<br />

countries. Preliminary results regarding the feasibility of these treatments<br />

within such a complex trial design under academic sponsorship<br />

will be presented. Safety data after at least 2 months of treatment with<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

39


Abstracts<br />

sorafenib /placebo for the first 20 patients did not indicate an increased<br />

toxicity for the combination of local microtherapy and sorafenib.<br />

Conclusion. Findings will provide insight in the synergism of local microtherapy<br />

and systemic treatment in patients with HCC. The complex<br />

trial design with three separate study sections with own PEP will additionally<br />

define the optimal imaging staging modality.<br />

0152<br />

Progression free survival and overall survival in patients with<br />

metastastic gastrointestinal stromal tumor (GIST) treated with<br />

sorafenib as 3rd- or 4th-line therapy<br />

*U . Bitz1 , D . Pink1 , J . Rahm1 , A . Koepke1 , P . Reichardt1 1HELIOS Klinikum Bad Saarow, Klinik für Hämatologie und Onkologie,<br />

Sarkomzentrum <strong>Berlin</strong>-Brandenburg, Bad Saarow, Deutschland<br />

Background. There is no approved treatment option for patients with<br />

unresectable or metastastic GIST with resistance to imatinib and sunitinib.<br />

Results of phase II trials indicate an efficacy of the multi-tyrosinkinase-inhibitor<br />

sorafenib in this population.<br />

Methods. We performed a retrospective analysis of all patients with metastastic<br />

GIST treated with sorafenib in our institution regarding their<br />

progression free survival and overall survival. All of these patients had<br />

suffered disease progression to imatinib and sunitinib, some of them<br />

had also been treated with everolimus and/or nilotinib. Response to<br />

treament was assesed using CT-Scans and RECIST-criteria every three<br />

months.<br />

Results. 37 patients (median age 53 years [33–75 years]) treated with<br />

sorafenib 800 mg daily were included in our analysis. Primary sites<br />

of GIST were small intestine (42%), stomach (30%), duodenum (15%),<br />

unknown (10%) and rectum (3%). 35 patients were eligible for response<br />

evaluation. 3 patients (9%) had a partial remission, 19 patients (54%)<br />

showed stable disease, resulting in a disease control rate (PR + SD) of<br />

63%. 13 (37%) patients showed no response to treatment. Median progression<br />

free survival (mPFS) was 5 months (0–38 months). mPFS in patients<br />

with at least stable disease was 8,5 months (4–38 months). Median<br />

overall survival since start of treatment was 10 months (1–38 months),<br />

82 months (21–158 months) since first diagnose of GIST and 76 months<br />

(10–126 months) since first diagnose of metastasis. Main toxicities during<br />

treatment were skin reactions (rash, hand and foot-syndrome), hypertension,<br />

diarrhea and fatigue. In 24% of the patients a dose reduction<br />

due to toxicity was necessary.<br />

Conclusion. To our knowledge this is the largest collection of patients<br />

with metastastic GIST treated with sorafenib by a single institution,<br />

that has been reported so far. In the majority of patients with intensively<br />

pretreated metastatic GIST, treatment with sorafenib can at least lead to<br />

stabilisation of disease. Our results are comparable to those of phase II<br />

trials from South Korea und the USA. The conduction of randomised<br />

prospective trails is necessary for further evaluation.<br />

40 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0180<br />

Investigating the relationship between quality of life (QoL) and<br />

tumour response in patients (pts) with metastatic colorectal<br />

cancer (mCRC) receiving FOLFIRI plus panitumumab (pmab) as<br />

first-line therapy: an exploratory analysis of study 314<br />

*M . Karthaus1 , J . Thaler2 , R . Hofheinz3 , L . Mineur4 , H . Letocha5 , R . Greil6 , E .<br />

Fernebro7 , E . Gamelin8 , A . Baños9 , C .-H . Köhne10 1 Department of Hematology, Oncology and Palliative Medicine, Klinikum<br />

Neuperlach/ Klinikum Harlaching, München, 2 Department of Hematology<br />

and Medical Oncology, Klinikum Wels-Grieskirchen, Wels, 3 Day treatment<br />

centre at the Interdisciplinary Tumour Centre Mannheim, Universitätsmedizin,<br />

Mannheim, 4 Radiology and Oncology Centre, Institut Sainte-<br />

Catherine, Avignon, 5 Department of Oncology, County Hospital, Västerås,<br />

6 3 7 rd Medical Department, University Hospital, Salzburg, Department of<br />

Oncology, University Hospital, Lund, 8 Department of Medical Oncology<br />

and Oncopharmacology, Centre Paul Papin, Angers, 9 Department of Biostatistics,<br />

Amgen, Uxbridge, 10 Department of Hematology and Oncology,<br />

Onkologie Klinikum, Oldenburg<br />

Introduction. Study 314 was a phase II, single-arm, multicentre study<br />

assessing the efficacy/safety of first-line FOLFIRI plus pmab in pts with<br />

mCRC, stratifying by KRAS tumour status. Here, we explored the relationship<br />

between QoL and tumour response.<br />

Methods. FOLFIRI and pmab (6 mg/kg) were administered every 14<br />

days until disease progression, unacceptable toxicity or consent withdrawal.<br />

EUROQOL EQ-5D Index scores were recorded at screening,<br />

then every 8 wks until wk 32, every 3 months thereafter until disease<br />

progression, and 56 days after stopping study treatment (referred to as<br />

the safety follow up visit). EQ-5D scores range from −0.594 to 1 (1 being<br />

equal to perfect health). A change of ≥0.08 was considered to be clinically<br />

meaningful. Data were analyzed descriptively by best overall response<br />

and by tumour KRAS status (wild type [WT] or mutant [MT]).<br />

Results. In those pts with higher baseline EQ-5D scores, a trend for better<br />

tumour response was observed. In those pts who achieved complete<br />

or partial response, the difference in EQ-5D score between the WT<br />

group and the MT group surpassed the clinically meaningful threshold<br />

at wk 8 and wk 24.<br />

Tab. 2 Mean (SE) change in EQ-5D score from baseline<br />

Mean (SE)<br />

baseline<br />

score<br />

PD<br />

WT<br />

PD<br />

MT<br />

SD<br />

WT<br />

SD<br />

MT<br />

CR or PR<br />

WT<br />

n 4 3 25 26 45 22<br />

0 .720<br />

(0 .178)<br />

0 .588<br />

(0 .205)<br />

0 .833<br />

(0 .039)<br />

0 .790<br />

(0 .034)<br />

0 .812<br />

(0 .034)<br />

Wk 8 n 3 2 23 23 43 21<br />

+0 .047<br />

(0 .047)<br />

−0 .087<br />

(0 .122)<br />

−0 .023<br />

(0 .044)<br />

+0 .015<br />

(0 .030)<br />

+0 .049<br />

(0 .032)<br />

Wk 16 n 1 1 20 19 39 22<br />

−0 .240<br />

(–)<br />

−0 .327<br />

(–)<br />

+0 .024<br />

(0 .039)<br />

−0 .007<br />

(0 .073)<br />

+0 .067<br />

(0 .031)<br />

Wk 24 n 0 10 9 33 19<br />

0 .000 – +0 .014<br />

(0 .073)<br />

+0 .111<br />

(0 .046)<br />

+0 .053<br />

(0 .028)<br />

Wk 32 n 1 0 3 5 15 8<br />

Safety<br />

follow up<br />

visit<br />

−0 .311<br />

(–)<br />

– +0 .195<br />

(0 .195)<br />

+0 .172<br />

(0 .081)<br />

+0 .019<br />

(0 .037)<br />

n 2 1 13 15 19 14<br />

−0 .087<br />

(0 .343)<br />

+0 .000<br />

(–)<br />

−0 .040<br />

(0 .060)<br />

−0 .034<br />

(0 .085)<br />

+0 .048<br />

(0 .042)<br />

CR or PR<br />

MT<br />

0 .817<br />

(0 .052)<br />

−0 .036<br />

(0 .052)<br />

+0 .018<br />

(0 .045)<br />

−0 .027<br />

(0 .033)<br />

−0 .015<br />

(0 .080)<br />

−0 .019<br />

(0 .038)


CR complete response, PD disease progression, PR partial response, SD<br />

stable disease, SE standard error.<br />

Conclusions. Those pts with WT KRAS mCRC who responded to pmab<br />

appeared to maintain their EQ-5D score over time. These results suggest<br />

that the relationship between QoL and tumour response in this<br />

treatment setting should be further investigated, perhaps in a larger<br />

patient population.<br />

0183<br />

Inhibition of portal branch ligation-induced extrahepatic tumor<br />

growth by rapamycin<br />

*S . Dold1 , S . Senger1,2 , B . Huber2 , J . Sperling1 , M .D . Menger2 , M .K . Schilling1 ,<br />

O . Kollmar1 1Universität des Saarlandes, Klinik für Allgemeine Chirurgie, Viszeral-,<br />

Gefäß- und Kinderchirurgie, Homburg/Saar, Deutschland, 2Universität des<br />

Saarlandes, Institut für Klinische & Experimentelle Chirurgie, Homburg/<br />

Saar, Deutschland<br />

Background. Portal branch ligation (PBL) is a frequently used procedure<br />

to achive curative resection of initially unresectable tumors by inducing<br />

liver regeneration in the unligated liver lobe. However, PBL induces<br />

tumor growth within the ligate part of the liver. The mTOR inhibitor<br />

rapamycin (RAPA) has been shown to exhibit potent anti-tumor activities.<br />

Therefore, we analyzed the effect of RAPA on tumor growth and<br />

angiogenesis under the conditions of PBL-associated liver regeneration.<br />

Materials and methods. Tumor growth was studied using GFP-transfected<br />

CT26.WT colorectal cancer cells implanted into the dorsal skinfold<br />

chamber of BALB/c-mice. Directly after tumor cell implantation, PBL<br />

of the left liver lobe was performed. The animals were treated daily with<br />

PBS as control and with RAPA (1.5 mg/kg) starting at day 0 or day 5<br />

after PBL (n=8 each group). Tumors were analyzed for angiogenesis and<br />

tumor growth via intravital fluorescence microscopy at defined time<br />

points until day 14 after PBL.<br />

Results. Extrahepatic tumor growth was markedly reduced by PBL<br />

compared non-PBL controls. Interestingly, RAPA treatment starting<br />

at day 0 significantly inhibited tumor growth compared to PBL-controls<br />

(1.35±0.56 mm2 vs. 3.86±1.28 mm2). RAPA treatment starting at<br />

day 5 did not influenced tumor growth within the observation period<br />

(2.98±0.35 mm2 vs. 3.86±1.28 mm2). The inhibition of tumor growth was<br />

associated with a significantly decreased macro and microvascular density<br />

within the tumor border (6.5±2.7 cm/cm2 vs. 63.0±19.4 cm/cm2) as<br />

well as tumor center (6.3±2.9 cm/cm2 vs. 72.4±29.8 cm/cm2) compared<br />

with controls. This inhibitory effect on the angiogenesis of the tumors<br />

was seen in both RAPA treatment groups.<br />

Conclusion. RAPA treatment is capable of inhibiting angiogenesis and<br />

tumor growth of colorectal metastasis during PBL-associated liver regeneration.<br />

Moreover, our experimental data indicate that an early onset<br />

of RAPA-therapy after PBL has a more potent anti-tumoral effect.<br />

0185<br />

After major liver resection cilostazol stimulates liver regeneration<br />

but not growth of residual colorectal liver metastases<br />

*M . Strowitzki1 , M .R . Moussavian2 , S . Dold2 , M . von Heesen2 , M .K . Schilling2 ,<br />

M .D . Menger1 , O . Kollmar2 1Universität des Saarlandes, Institut für Klinische & Experimentelle Chirurgie,<br />

Homburg/Saar, Deutschland, 2Universität des Saarlandes, Klinik für<br />

Allgemeine Chirurgie, Viszeral-, Gefäß- und Kinderchirurgie, Homburg/<br />

Saar, Deutschland<br />

Background. Liver resection is still the accepted gold standard of treatment<br />

for liver tumours. The resectability rate for liver tumors is about<br />

20–30% in normal livers, but reduced in patients with impaired liver<br />

function caused by neoadjuvant chemotherapy, steatosis or cirrhosis. In<br />

spite of improvements in adjuvant chemotherapy and increasing surgical<br />

confidence and expertise, the parameters determining how much<br />

liver can be resected have remained largely unchanged. Major liver resection<br />

for primary or secondary liver tumors can lead to postoperative<br />

liver dysfunction or even liver failure. Therefore, this study analyzed<br />

whether cilostazol, a selective phosphodiesterase-III inhibitor, is capable<br />

to improve hepatic perfusion and liver regeneration after 70% hepatectomy<br />

and influences tumor growth of colorectal metastases within<br />

the remnant liver.<br />

Methods. Sprague-Dawley-rats were pre-treated with cilostazol (5 mg/<br />

kg bw) or glucose solution. After 5 days animals underwent either 70%<br />

hepatectomy or sham operation. Additional animals (WAG-rats) received<br />

placebo- or cilostazol-treatment followed by 70% hepatectomy or<br />

sham operation and subcapsular implantation of 5×105 CC531-colorectal<br />

cancer cells.<br />

Results. In sham-operated animals cilostazol-treatment resulted in an<br />

improved hepatic blood flow and an elevated hepatic microcirculation<br />

(692±17 vs. 431±24aU). After hepatectomy cilostazol-treated animals<br />

showed improved portal venous flow and hepatic microcirculation<br />

(893±33 vs. 651±54aU). Liver regeneration was found enhanced by cilostazol-treatment<br />

over the whole observation period, as indicated by<br />

significantly increased number of PCNA-expressing hepatocytes (day<br />

3: 21±2 vs. 12±1 cells/HPF) and augmentation of recovered liver mass at<br />

day 6. Tumor volume in cilostazol-treated animals was not different to<br />

controls after 7 respectively after 14 days.<br />

Conclusion. We could demonstrate that cilostazol-treatment efficiently<br />

improves hepatic perfusion and stimulates liver regeneration after<br />

70% hepatectomy. No coincidental stimulation of tumor growth could<br />

be observed. Thus, cilostazol may represent an appropriate therapy to<br />

improve liver function after extended hepatectomy for colorectal liver<br />

metastases.<br />

0187<br />

Comparison of three putative methylation markers for the early<br />

detection of colon cancer<br />

*C . Gerecke1 , Y . Löwenstein1 , I . Fait1 , B . Scholtka1 1Universität Potsdam/IEW, Ernährungstoxikologie, Nuthetal, Deutschland<br />

Background. Colon <strong>Cancer</strong> is one of the most frequent occurring cancers<br />

in the western civilization. Thus it is one of leading causes of cancer<br />

related deaths. Colorectal cancer mortality can be reduced significantly<br />

by early detection of premalignant adenomas and early staged cancers.<br />

Therefore it is necessary to develop sensitive non-invasive screening<br />

tests. In the past few years it has become clear that abnormal hypermethylation<br />

of tumorsuppressor linked gene promoters, resulting in loss of<br />

gene expression, is one of the early events in colonic carcinogenesis. To<br />

evaluate a marker panel including methylated marker genes for an early<br />

detection of colon cancer we analyzed the methylation status of the gene<br />

promoters of integrin alpha subunit 4 (ITGA4), tissue factor pathway<br />

inhibitor II (TFPI2) and vimentin (VIM) in paired patient tissue and<br />

stool samples as well as in stool samples from healthy individuals.<br />

Methods. In this present study we analyzed samples of 4 inflamed tissue<br />

(IT), 13 hyperplastic polyps (HP), 50 adenomas (Ad) and 9 colorectal<br />

carcinomas (CRC). Additionally, stool samples derived from 5 healthy<br />

individuals and from 5 CRC patients were studied. The isolated genomic<br />

DNA was converted by sodium bisulphite treatment and subsequently<br />

analyzed by nested methylation-specific PCR (nMSP) encompassing<br />

the respective promoter regions of ITGA4, TFPI2 and vimentin.<br />

Results. The nMSP revealed a methylated promoter of the ITGA4-gene<br />

in 3/4 IT, 13/13 HP, 44/50 Ad and 8/9 CRC. In 4/5 CRC patient stool samples<br />

a methylated ITGA4 promoter was detected. None of the healthy<br />

stool samples were methylated in the ITGA4-promoter. A methylated<br />

TFPI2-promoter was found in 1/4 IT, 4/13 HP, 32/50 Ad and 8/9 CRC. In<br />

4/5 CRC patient stool samples we detected a methylated TFPI2 promoter<br />

as well. However, no healthy stool sample contained a methylated<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

41


Abstracts<br />

TFPI2-promoter. A methylated VIM-promoter was detected in 3/4 IT,<br />

8/13 HP, 36/50 Ad and in 4/9 CRC. In stool samples from CRC patients<br />

we discovered in 2/5 individuals a methylated VIM-promoter whereas<br />

no healthy sample was methylated.<br />

Conclusion. Because of the high methylation frequency of inflamed tissue<br />

it is concluded that the methylation analysis of VIM and ITGA4 is<br />

no suitable biomarker for early detection of colon cancer and premalignant<br />

adenomas. However, our findings suggest that the TFPI2 methylation<br />

is a proper biomarker with a good specificity and sensitivity.<br />

0188<br />

Quality of life and intestinal symptoms and after multimodal<br />

therapy of rectal cancer<br />

*H . Geinitz1 , A . Seidl1 , R . Thamm1 , R . Rosenberg2 , F . Lordick3 , M . Fuchs4 ,<br />

W . Heitland5 , F . Zimmermann1 , M . Molls1 1Technische Universität München, Klinik für Strahlentherapie, München,<br />

Deutschland, 2Technische Universität München, Chirurgische Klinik,<br />

München, Deutschland, 3Technische Universität München, III . Medizinische<br />

Klinik, München, Deutschland, 4Klinikum München Bogenhausen, Klinik für<br />

Gastroenterologie, München, Deutschland, 5Klinikum München Bogenhausen,<br />

Klinik für Chirurgie, München, Deutschland<br />

Purpose and objective. This cross sectional study was carried out in order<br />

to assess quality of life (QOL) and intestinal symptoms and after<br />

multimodal therapy of locally advanced rectal cancer.<br />

Materials and methods. 216 patients with neoadjuvant or adjuvant radiochemotherapy<br />

and surgery for stage III rectal cancer were assessed at a<br />

median of 62 months (16–137 m.) after the end of radiochemotherapy.<br />

Intestinal symptoms and fecal continence were evaluated with standardized<br />

instruments. Quality of life assessment was carried out with<br />

the EORTC QLQ-C30 and the colorectal module CR38.<br />

Results. 164 patients had received preoperative RChT (45 Gy with continous<br />

5-FU) and 52 patients postoperative RChT (50.4 Gy with 5-FU<br />

continously or bolus). As compared to the age and gender adjusted <strong>German</strong><br />

general population (Schwarz and Hinz; Eur J <strong>Cancer</strong> 2001) quality<br />

of life was significantly compromised in younger patients (50–60 years<br />

old) affecting in particular role functioning, emotional functioning,<br />

cognitive functioning, social functioning and fatigue, while in older<br />

patients (>60 y.) QOL-reduction was less pronounced and involved<br />

mainly social functioning. The most prevalent fecal symptoms were:<br />

diarrhoea (80%), flatulence (75%) and tenesmus (15%). In patients without<br />

a colostomy (n=152) only 18% reported a perfect fecal continence.<br />

Incontinence involved mainly gas (73%) and liquid stool (66%) with<br />

16% reporting incontinence for solid stool. 46% of the non-colostomy<br />

patients reported to wear pads because of fecal incontinence and 49%<br />

were unable to delay defecation for more than 15 minutes. Patients with<br />

low lying tumors (p=0.006) and those with reoperation because of<br />

anastomotic leakage (p=0.041) experienced more incontinence. Global<br />

QOL (p=0.041), physical functioning (p


and NAF were detectable by ICAM-1 staining. In 15 of 16 TAF cultures<br />

ICAM-1 was higher expressed compared to corresponding NAF cultures.<br />

After stimulation of cultures with interleucin-1β also 14 of 16 TAF<br />

cultures presented with higher ICAM-1 levels than corresponding NAF<br />

cultures. Performing an U937 adhesion assay also unstimulated and<br />

with tumor necrosis factor stimulated TAF cultures showed a higher<br />

adherence than corresponding stimulated and unstimulated NAF cultures.<br />

Conclusions. The isolation of TAF and NAF is possible and fibroblasts<br />

present with differences although in vitro cultivation. Isolated fibroblast<br />

present as a useful tool for further functional investigations of the desmoplastic<br />

tissue of CRC.<br />

0222<br />

cDNA-microarray gene expression analysis in different malignant<br />

pancreatic cancer cell lines after induction of apoptosis<br />

induced by Taurolidine (TRD)<br />

*M . Buchholz1 , A . Flier1 , S . Hahn2 , D . Bulut3 , W . Uhl1 , A . Chromik1 1 2 St . Josefs Hospital, Chirurgie, Bochum, Deutschland, Ruhr Universität,<br />

Bochum, Deutschland, 3St . Josefs Hospital, Bochum, Deutschland<br />

Introduction. The originally anti-infective agent Taurolidine (TRD) has<br />

been shown to have cell death inducing properties, but the mechanism<br />

of its action is largely unknown. The aim of this study was to identify<br />

potential common target genes modulated at the transcriptional level<br />

following TRD treatment in different malignant pancreatic cancer cell<br />

lines<br />

Material and methods. Five different malignant human pancreatic cancer<br />

cell lines (AsPC-1, BxPC-3, HPAF II, MiaPaca-2 and Panc1) were<br />

incubated with TRD (250 µmol/l) and Povidon 5%, which served as<br />

control. After 2 h incubation, gene expression analysis was carried out<br />

using the Agilent -microarray platform to indentify early genes which<br />

displayed conjoint regulation following the addition of TRD in all pancreatic<br />

cancer cell lines. Agilant’Feature Extraction Software was used<br />

to analyze acquired array images. Further data processing was performed<br />

using the GeneSpring GX11.01 software package. Following the<br />

data sets were reduced by filtering the raw signal intensity value ≥50<br />

and a quantile normalization of raw data. (T-test was used to examine<br />

the hypothesis that there was no difference in expression between the<br />

TRD treatment group and the Povidon control group). Candidate genes<br />

were analyzed by Ingenuity Pathways Analysis and selected genes were<br />

validated by qRT-PCR and Western Blot.<br />

Results. Among cell death associated genes with the strongest regulation<br />

in gene expression (factor x5–x60), we identified a broad range of<br />

pro-apoptotic proteins, e.g. pro-apoptotic transcription factors (EGR1,<br />

EGR2, EGR4, ATF3) as well as genes involved in proliferation (c-FOS,<br />

DUSP1). Furthermore, inhibitors of the JAK/STAT signaling pathway<br />

(SOCS1), genes involved in oxidative stress response (ADM) as well<br />

as pro-apoptotic proteins of GADD family (GADD45B, GADD45A,<br />

GADD34) were identified. The results of the validation by qRT-PCR and<br />

Western Blot confirmed the prior results.<br />

Conclusions. This is the first conjoint analysis of potential early target<br />

genes of TRD which was performed simultaneously in different malignant<br />

pancreatic cancer cell lines. The increased expression of several<br />

pro-apoptotic proteins of various origins indicates that TRD might be<br />

involved in different signal transduction pathways leading to apoptosis<br />

in pancreatic cancer cell lines. However, further functional studies are<br />

necessary to elucidate the exact mechanism and relative contribution of<br />

death inducing pathways of TRD.<br />

0230<br />

Molecular repair mechanisms and chemoresistance in hyperthermic<br />

intraperitoneal chemotherapy in patients with peritoneal<br />

carcinosis<br />

*M . Vetterlein1 , M . Lazariotou1 , T . Grimmig1 , N . Matthes1 , M . Faber1 , C .-T . Germer2<br />

, J . Pelz2 , A .M . Waaga-Gasser1 , M . Gasser2 1Universitätsklinikum Würzburg, Chirurgische Klinik I, Molekulare Onkoimmunologie,<br />

Würzburg, Deutschland, 2Universitätsklinikum Würzburg,<br />

Chirurgische Klinik I, Würzburg, Deutschland<br />

Background. In patients with isolated peritoneal carcinosis (PC) of<br />

gastric, colorectal and ovarian cancer hyperthermic intraperitoneal<br />

chemotherapy (HIPEC) represents a promising treatment option integrated<br />

into multimodal concepts. We analyzed relevant heat shock proteins<br />

(HSPs) that confer resistance to physical stress like hyperthermia<br />

as well as specific multidrug resistence (MDR) genes in patients with<br />

PC.<br />

Methods. Patients with different adenocarcinomas and additional PC<br />

that underwent HIPEC therapy between 09/09 and 03/11 in our department<br />

(gastric, colorectal and ovarian cancer) were included in the study.<br />

HIPEC therapy was performed under specific conditions (1hr permanent<br />

chemotherapeutical flux via external pump into the abdominal cavity<br />

after resection of relevant tumor masses with elevated temperature<br />

up to 43°C). Tumors before and after HIPEC therapy were analyzed for<br />

HSPs, ABC transporter and CD133 expression by immunohistochemistry,<br />

Western Blot, and RT-qPCR. Additionally, HT29 tumor cells were<br />

exposed in vitro to different conditions of hyperthermia up to 43°C for<br />

60 minutes and comparably analyzed. Tumor cells were counted and<br />

studied for apoptosis.<br />

Results. HSP70/72, HSP90 and CD133 expression was upregulated in the<br />

investigated tumors, in particular post HIPEC therapy. Upregulated<br />

protein and gene expression was also shown for MDR genes ABCB5,<br />

ABCG2 and ABCC5. Hyperthermia induced upregulated protein and<br />

gene expression in HT29 tumor cells dependent on incubation temperature,<br />

mainly for HSPs observed in western blot, immunohistochemistry<br />

and RT-qPCR. Furthermore, cell viability decreased with increasing<br />

incubation temperature.<br />

Conclusions. Therapeutic approaches like HIPEC to achieve antiproliferative<br />

and apoptosis inducing cellular effects in patients with PC seem<br />

to be negatively influenced by highly conserved HSP mechanisms as<br />

well as multidrug resistance genes. Studying HSP and MDR expression<br />

profiles both in patient tumors and in vitro are valuable tools to further<br />

clarify the effects of hyperthermia and chemotherapeutical agents in<br />

context with the treatment of HIPEC therapy in the affected patients.<br />

0232<br />

PDGF stimulates proliferation in colorectal cancer<br />

*M . Faber1 , N . Matthes1 , M . Kim2 , T . Grimmig1 , C .-T . Germer2 , M . Gasser2 ,<br />

A .M . Waaga-Gasser1 1Universitätsklinikum Würzburg, Chirurgische Klinik I, Molekulare Onkoimmunologie,<br />

Würzburg, Deutschland, 2Universitätsklinikum Würzburg,<br />

Chirurgische Klinik I, Würzburg, Deutschland<br />

Background. Platelet derived growth factor (PDGF) plays an important<br />

role in angiogenesis of several cancer types. It induces cell migration<br />

and proliferation in stromal cancer tissue and is a key target in cancer<br />

metastasis therapy. Aim of our study was to analyze the Mitogen-activated<br />

protein kinase (MAPK)-pathway in colon cancer cells stimulated<br />

by PDGF for putative future therapeutic interventions in colorectal cancer<br />

(CRC).<br />

Methods. The human colorectal cancer cell line HT-29 was cultured<br />

and stimulated with PDGF-BB over the time periods of 5, 10, 15,<br />

30 and 60 minutes. Cell protein and RNA extracts were analyzed by<br />

Western Blot and RT-PCR for PDGF-receptor-β and for proteins of the<br />

MAPK-pathway. To determine effects on proliferation HT-29 cells were<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

43


Abstracts<br />

cultured on a Matrigel layer and stimulated with PDGF over two weeks<br />

and cell count and colony formation were analyzed.<br />

Results. Western blot analysis and RT-PCR revealed no relevant PDGFreceptor-β<br />

in HT-29 cells. Nevertheless, stimulation of PDGF-BB resulted<br />

in an upregulation of downstream MAPK-pathway events in<br />

Western Blot analysis and in an increased proliferation in the matrigel<br />

assay. After two weeks of stimulation with PDGF cell count as well as<br />

colony forming significantly increased compared to unstimulated cell<br />

populations.<br />

Conclusions. PDGF-receptor-β expression has been described in cancer<br />

stromal tissues. We could show for the first time that in the absence<br />

of its receptor, stimulation with PDGF-BB results in activation of the<br />

MAPK-pathway and consecutive proliferation in colon cancer cells.<br />

Our results suggest that PDGF activates MAPK and cancer cell proliferation<br />

by an alternative signaling route.<br />

0245<br />

CAES/ CAMIC- Zentralregister: “Okkultes Gallenblasenkarzinom”.<br />

Analyse der Prognosefaktoren nach Auswertung von mehr als<br />

700 Fällen<br />

*T . Goetze1 , V . Paolucci1 1Ketteler-Krankenhaus, Chirurgische Klinik, Offenbach, Deutschland<br />

Background. The incidental gallbladder carcinoma (IGBC) is a cancer<br />

first discovered by the pathologist after cholecystectomy. The indication<br />

for the operation was a benign disease. The indication for early radical<br />

re-resection (ERR) is debated in the recent literature and the S3 guidelines.<br />

According to the S3 guidelines a ERR is recommended in T2 and<br />

more advanced carcinomas. Recent data of the literature, the <strong>German</strong><br />

Registry, and even international guidelines, e.g. National Comprehensive<br />

<strong>Cancer</strong> Networks show that patients with T1b carcinomas do profit<br />

from an ERR. Another important prognostic factor that has to be discussed<br />

in context with ERR is the lymph node status.<br />

Methods. For data analysis we used „The <strong>German</strong> Registry“ ( CAES/<br />

CAMIC- Zentralregister: „Okkultes Gallenblasenkarzinom“, der deutschen<br />

Gesellschaft für Chirurgie) . For getting the data a questionnaire<br />

was sent to all <strong>German</strong> surgical clinics. The data are actualised in a period<br />

of 3 months. All patients of the registry have been treated according<br />

to the S3 guidelines.<br />

Results. To date more than 700 patients have been registered and 684<br />

cases of IGBC are calculated by the statistics. In 29 patients with T1a<br />

carcinomas there was no ERR. In 6 cases of T1a carcinomas there was<br />

an ERR. In 28 of 84 patients with T1b tumors there was a ERR. The 5<br />

year- survival rate shows a significant prognostic survival benefit for<br />

T1b- tumors with ERR, but there is no prognostic benefit for T1a carcinomas<br />

after ERR. All of the liver resections have been combined with a<br />

lymph node dissection of hepatoduodenale ligament. The liver resection<br />

in cases of T1b tumors was 16× a wedge resection, 6× a IVb/V resection<br />

and 5× another kind liver resection technique was used. The wedge resection<br />

shows a 5 year survival of 84%, the IVb/V resection 75%. Patients<br />

with positive lymph nodes show a worse prognosis compared with nodal<br />

negative IGBC’s in all stages.<br />

Discussion. The analysis of more than 700 cases of IGBC of the <strong>German</strong><br />

registry shows, a significant benefit for T1b patients with ERR. For<br />

patients with T1a carcinomas a simple cholecystectomy is enough. The<br />

positive nodal status is a significant negative prognostic factor in T1–3<br />

tumors. Patients with radical re-resection show always a better survival<br />

than without. Liver resection and lymph node dissection of the hepatoduodenal<br />

ligament has to be highly recommended up to T1b.<br />

44 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0256<br />

Analysis of tumor cell dissemination gives evidence for peripheral<br />

tumor initiating cells in colorectal cancer<br />

*M . Kim1 , M . Frank2 , N . Frank2 , T . Grimmig3 , C .-T . Germer1 , A .M . Waaga-Gasser3<br />

, M . Gasser1 1Universitätsklinikum Würzburg, Chirurgische Klinik I, Würzburg, Deutschland,<br />

2Children‘s Hospital, Harvard Medical School, Boston, USA, 3Universi tätsklinikum Würzburg, Chirurgische Klinik I, Molekulare Onkoimmunologie,<br />

Würzburg, Deutschland<br />

Background. Recent findings suggest that tumor initiating cells beside<br />

differentiated tumor cells are responsible for disseminated tumor disease.<br />

This study evaluates CD133, a marker described for tumor initiating<br />

cells, together with ABCB5 and ALDH1 as putative additional markers<br />

in peripheral blood and bone marrow of patients with colorectal cancer<br />

(CRC).<br />

Methods. Expression of CD133, ABCB5, a chemoresistance mediator,<br />

ALDH1, and Lgr5 were analyzed in cells from peripheral blood of patients<br />

with CRC (n=105, UICC stages I–III) and completed 5-year followup<br />

by RT-qPCR. A cohort of 26 healthy individuals served as controls.<br />

Bone marrow aspirates (n=24) were analyzed for further evidence of<br />

cancer cell migration in this compartment.<br />

Results. CD133 and ABCB5 expression in peripheral blood cells was<br />

upregulated in patients with CRC even at early tumor stages (p


clinical tumors less present. Further in vitro analysis of a specifically<br />

induced expression seems to be relevant to develop clinical strategies<br />

for increased tumor cell apoptosis in pancreatic cancer with detected<br />

increased TLR expression patterns.<br />

0288<br />

Outcome of surgical and interventional therapy of patients with<br />

hepatocellular carcinoma<br />

*T . Förtsch1 , W . Hohenberger1 , S . Merkel1 , V . Mueller1 , R . Croner1 1Universität Erlangen, Chirurgische Klinik, Erlangen, Deutschland<br />

Introduction. Hepatocellular carcinoma (HCC) represents the fifth most<br />

common malignant tumor worldwide with a rising incidence especially<br />

in the western countries. Our retrospective analysis compares outcome<br />

and survival of patients with HCC, who were treated at the department<br />

of surgery of University of Erlangen from 1998–2008, by the means of<br />

different possibilities of treatment. In addition risk factors like pT classification,<br />

tumor size and lymph node dissection are tested for their prognostic<br />

influence on survival.<br />

Material and methods. At our department 260 patients (231 male, 29<br />

female) with HCC were treated from 1998–2008. Thereof 96 patients<br />

received a removal of the tumor by liver resection; on 23 patients with<br />

small HCC a liver transplantation (LTx) was performed. 71 patients were<br />

treated by an interventional therapy (radiofrequency ablation, chemoembolization).<br />

Because of advanced liver cirrhosis or advanced tumor<br />

stage only a supportive palliative therapy was done in 70 patients.<br />

Results. The 1-, 3- and 5-year survival rates for all patients who underwent<br />

surgery amounted to 75%, 50% and 37%. Comparing the group of<br />

liver resected patients with patients who underwent LTx, the survival<br />

rates resulted in 70%, 46% and 32% vs. 85%, 64% and 59% (log-rank test<br />

p=0.007). In patients who have received interventional therapy without<br />

surgical resection, the 1-, 3-, and 5-year survival rates were 58%, 25% and<br />

17% (log-rank test compared to all operated patients p


Abstracts<br />

Median disease free survival (DFS) was 23.2 months revealing 3700 differentially<br />

regulated probes (q≤0.005).<br />

Conclusion. Whole genome expression analyses enable a correct prediction<br />

of lymph node negativity after preoperative RCT in 81%. Although<br />

validated by LOOCV these data still need an independent validation<br />

that is currently ongoing. The high number of differentially regulated<br />

probes for DFS is promising to find a predictive profile.<br />

0311<br />

Influence of multimodality treatment on the immune system of<br />

patients with esophageal cancer<br />

*T . Herbold1 , E . Bollschweiler1 , A . Worring1 , H . Alakus1 , W . Schröder1 , A . Hölscher1<br />

, R . Metzger1 1Universität zu Köln, Allgemein-, Viszeral- und Tumorchirurgie, Köln,<br />

Deutschland<br />

Introduction. Neoadjuvant radiochemotherapy (RTx/CTx) is an important<br />

part of the multimodality treatment in locally advanced esophageal<br />

cancer. Analyzed were the effects of neoadjuvant radiochemotherapy<br />

on the immune status of patients with esophageal cancer.<br />

Patients and methods. In this prospective study 86 patients (m: 71, w: 15)<br />

with locally advanced esophageal cancer (uT3/4) were included. Median<br />

age was 59 years (min: 31, max: 78). 27 patients had a squamous cell carcinoma<br />

(SCC), 59 patients an adenocarcinoma (AC) of the esophagus.<br />

All patients underwent induction therapy with 5-FU, CDDP and 40 Gy.<br />

Analysis of the cellular immune system (leucocytes, lymphocytes, CD3-<br />

, CD4-, CD8-, CD16-, CD19-, CD25-, CD56-, HLA-DR-bearing cells)<br />

was performed before and 3 weeks after induction therapy.<br />

Results. The neoadjuvant radiochemotherapy resulted in a significant<br />

decrease of leucocytes, lymphocytes and subgroups. Pathologic low values<br />

after induction therapy were detected in 19% of the patients for leucocytes,<br />

in 20% for thrombocytes, in 61% for lymphocytes, in 76% for B<br />

cells, in 37% for T cells, in 31% for T helper cells, in 33% for T suppressor<br />

cells, in 30% for NK cells. The posttherapeutic results reflect the preoperative<br />

status of the cellular immune system.<br />

Conclusion. In our cohort of patients with locally advanced esophageal<br />

cancer (uT3/4) neoadjuvant radiochemotherapy results in a significant<br />

decrease of immune competent cells particularly in lymphocytes. However,<br />

we didn’t observe any case of aplasia caused by induction therapy.<br />

In consideration of a demanding surgical procedure this would be<br />

unfavorable.<br />

0323<br />

GPI-anchored tissue inhibitor of matrix metalloproteinase-1<br />

(TIMP-1) inhibits tumor growth in fibrosarcoma and pancreatic<br />

cancer<br />

*Q . Bao1 , H . Niess1 , R . Djafarzadeh2 , Y . Zhao1 , B . Schwarz1 , K .-W . Jauch1 ,<br />

P .J . Nelson2 , C .J . Bruns1 1Campus Großhadern, LMU, Department of Surgery, Munich, Deutschland,<br />

2LMU, Medical Policlinic, Clinical Biochemistry Group, Munich, Deutschland<br />

Background. The family of tissue inhibitors of metalloproteinases<br />

(TIMPs) exhibit diverse physiological/biological functions including<br />

the moderation of tumor growth, metastasis, and apoptosis. TIMP-1<br />

is a secreted protein that can be detected on the cell surface through<br />

its interaction with surface proteins. The diverse biological functions<br />

of TIMP-1 are based, in part, on the kinetics of TIMP-1/MMP/surface<br />

protein interactions. Proteins anchored by glycosylphosphatidylinositol<br />

(GPI), when purified and added to cells in vitro, are incorporated into<br />

their surface membranes. A GPI anchor was fused to TIMP-1 to generate<br />

a reagent that could be added directly to cell membranes and thus<br />

deliver defined concentrations of TIMP-1 protein on any cell surface independent<br />

of protein-protein interaction.<br />

46 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Methods. We produced and purified a fusion protein based on the tissue<br />

inhibitor of matrix metalloproteinase-1 linked to a glycosylphosphatidylinositol<br />

anchor (TIMP-1-GPI). TIMP-1-GPI was exogenously added<br />

to the human fibrosarcoma cell (HT1080) and murine pancreatic cancer<br />

cells (Panc02) culture medium. Fluorescent staining assays, proliferation<br />

assays, clonogenic assays, migration assays, and apoptosis assays<br />

were performed comparably with rhTIMP-1 and vehicle treatment. In<br />

a homogenetic subcutaneous pancreatic cancer mouse model, TIMP-<br />

1-GPI, rhTIMP-1, and vehicle were applied locally, and their effects on<br />

tumor growth were investigated.<br />

Results. TIMP-1-GPI showed better incorporation with cell membranes<br />

compared to TIMP-1. As the concentration of TIMP-1-GPI increased<br />

(2–14 ng/ml), the proliferation rates of both cancer cell lines were significantly<br />

inhibited. The inhibition effects were enhanced by incubation<br />

time prolongation. While control rhTIMP-1 protein did not significantly<br />

affect proliferation of HT1080 and Panc02 cells at the concentration<br />

(14 ng/ml) tested, the GPI-anchored TIMP-1 protein showed a pronounced<br />

suppression of cancer cell clone formation and migration. Furthermore,<br />

TIMP-1-GPI induced significant higher percentage of apoptotic<br />

cells than rhTIMP-1 and control group, the sequentially combination of<br />

TIMP-1-GPI and chemotherapy (Doxorubicin) had synergetic effects of<br />

inducing apoptosis. In addition, TIMP-1-GPI can inhibit HT1080 sidepopulation<br />

cells with Hoechst staining. Treatment of Panc02 tumors<br />

implanted in C57BL/6 mice with local applied TIMP-1-GPI, control<br />

rhTIMP-1 protein, or vehicle showed a significant inhibition of tumor<br />

growth following treatment with TIMP-1-GPI.<br />

Conclusion. Compared with rhTIMP-1, exogenous administration of<br />

TIMP-1-GPI result in transient morphological changes of tumor cells<br />

including better incorporation of TIMP-1 in the cell membrane, pronounced<br />

inhibition of proliferation, clone formation, migration, and<br />

enhancement of side-population cells, inducing more apoptotic cells<br />

either as single reagent or combined with chemotherapy. In vivo, TIMP-<br />

1-GPI significantly inhibited tumor growth. GPI-anchored TIMP-1 may<br />

represent a more effective version of the protein for cancer therapy.<br />

0344<br />

Ulcerative colitis-associated carcinogenesis depends on alternatively<br />

activated “M2 macrophages” – from mice to men<br />

R . Kesselring1 , M . Martin1 , P . Ruemmele2 , H .J . Schlitt1 , *S . Fichtner-Feigl1 1Universität Regensburg, Klinik und Poliklinik für Chirurgie, Regensburg,<br />

Deutschland, 2Universität Regensburg, Institut für Pathologie, Regensburg,<br />

Deutschland<br />

The pathogenesis of human ulcerative colitis (UC) is characterized by<br />

the presence of IL-13-producing Natural Killer T cells (NKT cells). One<br />

major complication of UC is the development of colitis-associated colorectal<br />

cancer. In these studies we determined the role of alternatively<br />

activated „M2 macrophages“ in a new mouse model of colitis-associated<br />

carcinogenesis based on chronic Oxazolone-colitis in combination with<br />

an initial i.p. azoxymethane (AOM) injection. Further, we verified these<br />

results through the immunological analysis of surgical specimens obtained<br />

from 6 patients with UC-associated colon cancer.<br />

We could show that chronic Oxazolone-colitis was mediated by colonic<br />

alpha-galactosyl-ceramide+CD1+ NKT-cells producing IL-13 and therefore<br />

resembles the immunological characteristics of human UC. Colon<br />

cancer development in this model was dependent on the presence of<br />

F4/80+CD11bhighGr1low macrophages producing IL-6 and EGF. Those<br />

cells inherited phenotypic characteristics of IL-13-stimulated alternatively-activated<br />

“M2 macrophages”. To elucidate the importance of these<br />

“M2 macrophages”, we conducted bone marrow chimera studies and<br />

demonstrated that innate immune signaling through MyD88 in “M2<br />

macrophages” is the key event for the production of tumor supporting<br />

factors like IL-6 and EGF. In surgical specimens obtained from patients<br />

with UC-associated colon cancer we verified those experimental findings.<br />

We consistently found a dense accumulation of IL-13-producing


NKT cells inside the tumors. In addition, in this IL-13-dominated tumor<br />

micromilieu CD14+ and CD68+ antigen-presenting cells accumulated<br />

intensively and those antigen-presenting cells demonstrated an alternatively<br />

activated “M2 phenotype” by the expression of CD163 and CD205.<br />

In conclusion, we could demonstrate that in an experimental UC model,<br />

as well as in human UC, pathogenic IL-13-producing NKT cells<br />

accumulate in the tumor micromilieu of UC-associated colon cancers.<br />

This immunologic situation inside the tumor microenvironment of<br />

mice and men induces tumor promoting M2 macrophages. Therefore<br />

M2 macrophages represent a potential target for future therapeutic strategies.<br />

0353<br />

Pancreatic cancer cells expressing stem cell markers survive<br />

Gemcitabine treatment in vitro<br />

*K . Quint1 , P . Di Fazio1 , R . Montalbano1 , M . Ocker1 1Philipps Universität Marburg, Institut für Chirurgische Forschung, Marburg,<br />

Deutschland<br />

Introduction and objectives. The prognosis of pancreatic carcinoma patients<br />

remains among the worst of all solid tumors. Response rates to<br />

the standard chemotherapeutic regimens remain low and tumors recur<br />

frequently. In recent years, subpopulations of cells have been identified<br />

in various solid tumors, which express stem cell associated markers and<br />

are associated with increased resistance against radiochemotherapy. In<br />

this study, we address the question whether chemotherapy leads to a<br />

selection of resistant cancer stem cells and whether the epithelial-tomesenchymal<br />

transition (EMT) is associated with chemoresistance.<br />

Materials and methods. Panc-1 and Capan-1 cells were continuously incubated<br />

with 10 µM Gemcitabine for up to 6 days. Vital cells were counted<br />

after one, 3 and 6 days after trypan blue staining. Gene expression of<br />

the early developmental markers and stem cell associated genes PDX-1,<br />

SHH, CD24, CD44, CD133, EpCAM, CBX7 and OCT4, EMT markers<br />

Slug, Snail and Twist were quantified using qPCR. PDX-1, SHH, CBX7,<br />

Oct-4, CD133, Ki-67, E-Cadherin and β-catenin were stained by immunocytochemistry.<br />

Results. After 3 days, Gemcitabine treatment reduced viable cell numbers<br />

to less than 10% of the untreated controls. mRNA levels of all investigated<br />

genes showed a time-dependent increase in both cell lines<br />

compared to the untreated controls (normalized n-fold gene expression<br />

for Panc-1/Capan-1, respectively): PDX1: 13.3/4.1; SHH: 24.1/2.0; CD24:<br />

1.7/47.3; CD44: 17.4/3.2; CD133: 20.2/7.8; EpCAM: 3.1/15.9; CBX7: 3.1/3.5;<br />

OCT4: 4.2/13.4, Snail: 6.4/6.4, Slug: 15.2/3.5. Immunocytochemistry confirmed<br />

gene expression for Oct-4, SHH, PDX-1, CD133, E-Cadherin and<br />

β-catenin. The majority of surviving cells stained positive for Ki-67.<br />

Conclusion. Cells surviving six days of high-dose Gemcitabine treatment<br />

express increased levels of stem cell and EMT markers and retain their<br />

proliferative capacity. These data suggest a selection of cancer stem cells<br />

which could be responsible for tumor recurrence in the clinical setting.<br />

0355<br />

Mutation analysis of the metastasis-inducing gene MACC1 and<br />

association with colon cancer metastasis<br />

*F . Schmid1 , K . Klockmeier2 , S . Burock3 , P .M . Schlag3 , U .S . Stein4 1 2 Max-Delbrück-Center for Molecular Medicine, <strong>Berlin</strong>, Deutschland, Freie<br />

Universität <strong>Berlin</strong>, <strong>Berlin</strong>, Deutschland, 3Charité Comprehensive <strong>Cancer</strong><br />

Center, <strong>Berlin</strong>, Deutschland, 4Experimental and Clinical Research Center, a<br />

joint cooperation between the Charité Medical Faculty and the Max-Delbrück-Center<br />

for Molecular Medicine, <strong>Berlin</strong>, Deutschland<br />

Colorectal cancer is one of the most common cancer diseases in the<br />

Western world. About 90% of cancer deaths arise from the formation<br />

of metastases. Recently, the new gene MACC1 (metastasis-associated<br />

in colorectal cancer 1) was identified as a prognostic marker for colon<br />

cancer metastasis. Tumors, which developed later metastases, showed a<br />

significantly higher MACC1 expression compared to non-metastasizing<br />

tumors. The 5-year survival rate for patients with a high MACC1 expression<br />

was only 15% compared to 80% for subjects with a low MACC1<br />

expression. It was shown that MACC1 is a key-regulator of Met (met<br />

proto-oncogene) expression that plays a decisive role in epithelial-mesenchymal<br />

transition, cell motility, invasiveness and metastasis. In this<br />

study, we analyzed the mutation status of the genes MACC1 and Met in<br />

human colorectal tumors. We wanted to evaluate if mutations in these<br />

genes are associated with expression modulation of MACC1 and Met,<br />

as well as with clinicopathological data, particularly with the metastasis<br />

formation. We sequenced the genomic coding exons of MACC1 and the<br />

exons of the juxtamembrane and the tyrosine kinase domain of Met. We<br />

detected in a test set of 60 tumors the Met variants T1010I and R988C<br />

in only two tumors. We identified in the same test set three MACC1<br />

single nucleotide polymorphisms (SNPs): L31V, S515L and R804T. Additionally,<br />

we screened them in a validation set of further 94 tumors. We<br />

found them almost as frequent as in the test set. L31V occurs in 13%, SNP<br />

S515L in 48% and SNP R804T in 84% of all 154 tumors. We correlated<br />

the MACC1 SNPs to sex, age, tumor grade, tumor stage, lymph node<br />

metastasis and metachronous metastases and did not find a significant<br />

correlation. In order to evaluate the biological abilities of the SNPs we generated<br />

plasmids containing MACC1 SNPs by site-directed mutagenesis.<br />

Colon cancer cells were transfected with these constructs. MACC1 SNPs<br />

had no impact on the migratory, proliferative or wound healing abilities<br />

of the cells. So far, MACC1 mutation analysis even when combined with<br />

MACC1 expression data does not improve the prediction of colon cancer<br />

metastasis.<br />

0365<br />

Capecitabine-induced cardiotoxicity associated with complete<br />

remission in a rectal cancer patient treated with neoadjuvant<br />

radio-chemotherapy<br />

*N . Henze1 , J . Kuhfahl1 , S . Wagner1 1Klinikum Deggendorf, Med . Klinik II, Deggendorf, Deutschland<br />

Background. Neoadjuvant radiochemotherapy is the therapeutic standard<br />

in patients with locally advanced rectal cancer. Infusional or oral<br />

5-FU-derivatives form the basis of chemotherapy. Cardiotoxicity is a<br />

rare but clinically important side effect of 5-FU. Here we report a case<br />

with complete histomorphologic remission despite dose reduction caused<br />

by severe capecitabine-induced cardiotoxicity.<br />

Case report. A 63-year-old male patient (80 kg, 168 cm) with rectal<br />

cancer (uT3, G3, uN+, cM(HEP); UICC IV) and six hepatic metastatic<br />

cancer lesions (maximum diameter 32 mm) was presented to the local<br />

tumour board. A curatively-intented neoadjuvant radiochemotherapy<br />

with capecitabine and oxaliplatin combined with 50.4 Gy pelvine radiation<br />

was recommended as consensus decision. Five days after initiation<br />

of capecitabine (3000 mg/d) rapidly increasing cardiostenotic<br />

pain and dyspnoea developed. Coronary artery disease was excluded by<br />

percutaneous coronary arterial angiography. Stenocardiac symptoms<br />

dissolved after stopping of cabecitabine. Thus the diagnosis of cabecitabine<br />

induced coronary spasms was established. Re-treatment with<br />

cabecitabine in a 50% reduced dose was started using prophylaxis with<br />

nitrate. Oxaliplatin was given in unchanged dosage. Neoadjunvant radiochemotherapy<br />

then could be applied as planned without any further<br />

complaints. Total mesorectal excision (TME) and simultaneous hepatic<br />

resection of all intraoperatively detectable lesions was performed [ypT0,<br />

yV0, yL0, yN0 (0/15)]. Histopathologic examinations revealed no vital<br />

cancer cells in colonic and hepatic resection material.<br />

Conclusion. Capecitabine may rarely induce coronary spasms. After<br />

exclusion of coronary artery disease, therapy can be restarted at individually<br />

adapted dose. Despite dose reduction complete remission may<br />

be induced which could suggest a special tumour response to 5-FU in<br />

such patients.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

47


Abstracts<br />

0385<br />

Immune status in patients with esophageal squamous cell carcinoma<br />

and adenocarcinoma<br />

*R . Metzger 1 , E . Bollschweiler 1 , T . Herbold 1 , W . Schöder 1 , A . Worring 1 ,<br />

H . Alakus 1 , A .H . Hölscher 1<br />

1 Uniklinik Köln, Allgemein-, Viszeral- und Tumorchirurgie, Köln,<br />

Deutschland<br />

Introduction. Esophageal cancer comprises the tumor entities squamous<br />

cell carcinoma (SCC) and adenocarcinoma (AC) of the esophagus.<br />

Epidemiology, etiology and tumorbiology are different in both SCC<br />

and AC. Consequently the two histological subtypes are considered to<br />

be different tumors. Patients with AC usually are overweight and report<br />

on a long history of reflux. Contrary, patients with SCC usually are smokers<br />

and have an abuse of alcohol leading to cirrhosis and malnutrition.<br />

The immune status was analyzed and compared in patients with SCC<br />

and AC; the influence of alcohol and malnutrition was evaluated.<br />

Patients and methods. In this prospective cohort study 86 patients<br />

(m: 71, w: 15) with locally advanced esophageal cancer (uT3/4) were included<br />

so far. Median age was 59 years (min: 31, max: 78). 27 patients<br />

had SCC, 59 patients had AC. As part of the initial staging comparative<br />

analysis of the cellular immune status (leucocytes, lymphocytes, CD3-,<br />

CD4-,CD8-, CD16-, CD19-, CD25-, CD56-, HLA-DR-bearing cells) was<br />

performed in all patients.<br />

Results. Pretherapeutic values were detected in a pathological range in<br />

3.5% oft he patients for leukocytes, in 3.5% for thrombocytes, in 7% for<br />

lymphocytes, in 7% for B cells, in 5.8% for T cells, in 3.5% for T helper<br />

cells, in 11.6% for T suppressor cells, in 5.9% for NK-cells.<br />

Conclusions. Despite a locally advanced oncological disease and different<br />

risk factors the immune system in patients with esophageal cancer<br />

was not significantly compromised. Comparing the different tumor<br />

subtypes SCC and AC no significant difference was detectable regarding<br />

the immune system.<br />

0395<br />

<strong>Cancer</strong> stem cells and chemoresistance in oesophageal cancer<br />

*Y . Zhao1 , B . Schwarz1 , S . Gros2 , A . Renner1 , J . Mysliwietz3 , J . Ellwart3 , P . Camaj1<br />

, Q . Bao1 , E . Yecebas2 , J . Izbicki2 , C . Bruns1 1 2 Klinikum Großhadern, LMU Munich, Munich, Deutschland, Department of<br />

Surgery, University Hamburg-Eppendorf, Hamburg, Deutschland, 3Institute of Molecular Immunology, Helmholtz Center for Environment and Health,<br />

Munich, Deutschland<br />

Introduction. Side population (SP) cells – potential cancer stem cells<br />

(CSC) – are known to be resistant to chemotherapy and more likely to<br />

cause epithelial-to-mesenchymal transition (EMT). We examined the<br />

existence of the SP subpopulation in 5 human oesophageal cancer cell<br />

lines. In addition, corresponding 5-FU, Cisplatin and Sorafenib resistant<br />

cell lines were developed in order to evaluate the potential contribution<br />

of SP-CSC to chemotherapy resistance of oesophageal cancer.<br />

Methods. OE19, OE21, OE33 and PT1590 (derived from a primary tumor)<br />

as well as LN1590 (derived from a corresponding lymph node with<br />

micro-metastasis) were analyzed in this study. Cells resistant to 5-FU,<br />

Cisplatin, and Sorafenib were identified via IC-50 determination after<br />

long-term in vitro exposure. The SP subpopulation was detected and<br />

sorted by Hoechst 33342 staining as previously described. ABCG2 and<br />

CD133 expression was detected by FACS, immunofluresence staining,<br />

and RT-PCR in both SP and Non-SP populations and EMT markers (E-<br />

Cadherin, ZEB1 and Vimentin) were evaluated at the protein level.<br />

Results. Five esophageal cell lines showed different chemo-sensitivity<br />

and processed different metastatic potential in vitro. Neither LN1590<br />

nor PT1590 had detectable SP cells, while the percentage of SP cells in<br />

OE19, OE21, and OE33 cells was 17.07%, 0.83% and 8.82%, respectively.<br />

Sorted OE19 SP cells were more resistant to 5-FU and Cisplatin than<br />

OE19 non-SP cells. Colony formation assay showed significant higher<br />

48 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

clonogenic capabilities of the SP population in OE19, OE21, and OE33.<br />

All chemotherapy-resistant oesophageal cell lines contained an enriched<br />

SP subpopulation with enhanced efflux capacity.<br />

Conclusions. Further in vivo studies are necessary to elucidate SP stemlike<br />

characteristics. SP cells purified from oesophageal cancer cell lines<br />

harbor cancer stem-like properties and may be related to metastasis,<br />

therapeutic-resistance, and EMT stimulation in oesophageal carcinoma.<br />

Identifying new molecular targets against chemotherapy resistant<br />

CSCs might potentially result in more effective anti-cancer strategies.<br />

0398<br />

Measurements of 5-FU level in serum of patients with gastrointestinal<br />

cancer: 5-FU levels in blood reflect 5-FU dose applied<br />

(24 h CIV) Response to 5-FU therapy reflects AUC values and 5-FU<br />

dosage<br />

*M . Blaschke1 , M . Nischwitz1 , G . Ramadori1 , S . Cameron1 1UM Göttingen, Gastroenterologie und Endokrinologie, Göttingen,<br />

Deutschland<br />

Introduction. 5-Fluorouracil (5-FU) is the base of most combination chemotherapies<br />

for gastrointestinal tumors. It is generally well tolerated,<br />

but side-effects might require dose-adjustment. As chemotherapy-induced<br />

adverse events might not be specific for the 5-FU component of<br />

the chemotherapy-combination, the knowledge of 5-FU serum levels<br />

might help to attribute these side effects to the 5-FU compound.<br />

Methods. 5-FU serum levels (n=230) in 30 patients with gastrointestinal<br />

cancer treated with 5-FU containing infusional therapy were monitored<br />

using the Saladax 5-FU PCMTM- Immunoassay. Patients received<br />

different 5-FU regimens based on a 24 or 48-hour AIO treatment-schedule<br />

using a Baxter pump. Blood was taken before and towards the end<br />

of the infusion (21-23h), when 5-FU concentrations are at a steady-state<br />

level. In 14 patients long term measurements of 5-FU levels over up to<br />

50 weeks and up to 18 measurements per patient were obtained.<br />

Results. Care has to be taken with blood sample collection before the<br />

pump is empty, placement on ice and prompt centrifugation of the samples.<br />

5-FU concentrations did increase with elevated 5-FU doses. Intraindividual<br />

variation in 5-FU plasma concentration was negligible. One<br />

third of our patients reached AUC-values within the proposed range of<br />

20–25 mgh/l (Gamelin 2008): 3 patients achieved AUC-levels 25 mgh/l. There was a tendency to better response in<br />

patients receiving higher 5-FU doses and therefore obtaining higher<br />

AUC-levels (>20 mgh/l). Side effects could not necessarily be attributed<br />

to 5-FU concentrations, as they did not correlate with the measured<br />

5-FU concentrations.<br />

Conclusions. The measurement of 5-FU plasma concentrations leads to<br />

reproducible results in our test system. Our preliminary data show that<br />

5-FU concentrations are dose-dependent with low intraindividual variability.<br />

The measurement of 5-FU plasma concentrations may in the<br />

future allow to optimize the 5-FU dose and to identify the cause of toxicity.<br />

0402<br />

Prognosis in colon cancer<br />

*K . Oeckl1 , W . Hohenberger1 , S . Merkel1 , M . Langheinrich1 1Chirurgische Universitätsklinik, Allgemeinchirurgie, Erlangen, Deutschland<br />

From 1978 to 2004 1453 patients from our ERCRC with solitary colon<br />

carcinoma were selected and the data analysed for local recurrence, distant<br />

metastasis and 5-year survival-rate.<br />

The 5-year rate of local recurrence was 4.8 % (95% CI 3.6–6.0). Local recurrence<br />

occurred in median 20 months after primary therapy. In univariate<br />

analysis it was significantly elevated at tumors with advanced pT<br />

and pN category, high tumor stadium, high grade tumors, tumors with


extramural venous invasion and emergency presentation with emergency<br />

operation. In multivariate analysis we analysed three risc factors:<br />

pN-category (relative risk 8.6 in pN2-tumors), grading of tumor tissue<br />

(relative risk: 8.6 in high grade tumors) and emergency presentation (relative<br />

risk: 1.6 in emergency operation).<br />

The 5-year rate of distant metastases was 19.2 % (95% CI 17.0–21.4). In<br />

univariate analysis we found significantly factors in advanced pT and<br />

pN category, tumor stadium, grading, extramural venous invasion and<br />

emergency presentation as well as lymphatic invasion and in patients<br />

without adjuvant chemotherapy. Independent factors in multivariate<br />

analysis were pT and pN category, tumor stadium, extramural venous<br />

invasion and emergency presentation.<br />

The 5-year survival rate of all patients was 84.4 %. Similar to local recurrence<br />

significant factors in univariate analysis were an advanced pT and<br />

pN category, tumor stadium and grading, extramural venous invasion<br />

and emergency presentation. In multivariate analysis we found advanced<br />

pT and pN category and emergency presentation as independent<br />

factors.<br />

At contemplating the independent risk factors advance pT and pN category<br />

and emergency presentation are the most important factors. Using<br />

better prevention and early diagnosis the tumor can be diagnosed and<br />

treated in an earlier tumor stage. A sophisticated operation technique<br />

and performing the operation by a specialized surgeon with high experience<br />

can improve prognosis. In our data we can see, that prognosis is<br />

considerably better since introduction the method of CME (complete<br />

mesocolic exczsion) in 1995. (Exemplary 10,4% of local recurrence in<br />

stadium III tumors in 1978–1984, 4.9 % local recurrence in 2000–2004.)<br />

0416<br />

Therapy resistance in HCC is modulated by IL-29 and Rapamycin<br />

*E .B . Schwarz1 , Y . Zhao1 , F . Beigel2 , J . Mysliwietz3 , J .W . Ellwart3 , S . Brand2 ,<br />

K .-W . Jauch1 , C .J . Bruns1 1Universitätsklinikum der LMU München Campus Großhadern, Chirurgie,<br />

München, Deutschland, 2Universitätsklinikum der LMU München Campus<br />

Großhadern, Med II, München, Deutschland, 3Helmholtz Center for Environment<br />

and Health, Institute of Molecular Immunology, München,<br />

Deutschland<br />

Background. HCC is the fifth leading cause of cancer-related death<br />

worldwide. Patients with advanced HCC rarely benefit from the available<br />

first-line therapies. Second line therapies are often associated with<br />

development of resistance. Thus, it is essential to gain deeper knowledge<br />

of HCC tumor biology, in particular the significance of cancer stem<br />

cells and their impact on therapy resistance, to develop novel therapeutic<br />

strategies. Therefore, we investigated in vitro and in vivo the<br />

effects of interleukin-29 (IL-29) and the mTOR-inhibitor Rapamycin<br />

on different cancer stem cell subpopulations in HCC. Our aim was to<br />

characterize CSC markers on sensitive and Sorafenib-resistant human<br />

HCC cells (Huh7) and to demonstrate the therapeutic effects of IL-29<br />

and Rapamycin.<br />

Methods. For in vitro experiments sensitive and Sorafenib-resistant<br />

(Huh7-SoR) Huh7 cells were used. To characterize CSC surface markers<br />

FACS and immunofluorescence staining for SP (side population),<br />

CD133, CD44, ABCG2 were performed. Cell viability, migration, colony<br />

formation and apoptosis of sensitive and Sorafenib-resistant Huh7 cells<br />

were analyzed under treatment of IL-29 and Rapamycin.<br />

Results. We could demonstrate a significant dose-dependent inhibition<br />

of cell proliferation in both Huh7 and Huh7-SoR cells under IL-29 treatment.<br />

The Huh7 SP subpopulation increased after 72 h of therapy with<br />

Sorafenib at IC50-concentrations and enriched with long term therapy<br />

after 3 months (5,19% vs. 12,9%). The CD133+ and CD44+ double positive<br />

subpopulation significantly increased in Huh7-SoR compared to sensitive<br />

Huh7 cells over the same treatment period. Interestingly, Rapamycin<br />

reduced the SP subpopulation in sensitive Huh7 and Huh7-SoR<br />

cells more effectively than IL-29. Inhibition of colony formation in both<br />

sensitive Huh7 and Huh7-SoR cells was more pronounced following<br />

treatment with Rapamycin compared to IL-29. Immunofluorescence<br />

stainings showed similar results.<br />

Conclusions. There is an obvious effect of IL-29 treatment on sensitive<br />

and Sorafenib-resistant Huh7 cells. However, with respect to different<br />

cancer stem cell subpopulations Rapamycin was a more effective inhibitor<br />

in vitro. Therefore, mTOR inhibition seems to open new possibilities<br />

for second line therapy in HCCs.<br />

0427<br />

microRNA signature for the chemoradiosensitivity in colorectal<br />

cancer cell lines<br />

*J . Salendo1 , M . Spitzner1 , P . Jo1 , F . Kramer2 , T . Beissbarth2 , H .A . Wolff3 ,<br />

M . Grade1 , H . Becker1 , B .M . Ghadimi1 , J . Gaedcke1 1Universitätsmedizin Göttingen, Allgemein- und Viszeralchirurgie, Göttingen,<br />

Deutschland, 2Universitätsmedizin Göttingen, Medizinische Statistik,<br />

Göttingen, Deutschland, 3Universitätsmedizin Göttingen, Strahlentherapie<br />

& Radioonkologie, Göttingen, Deutschland<br />

Background. Preoperative 5-fluorouracil-based chemoradiotherapy is<br />

the standard treatment for locally advanced rectal carcinomas. However,<br />

the individual tumor response is very heterogeneous, ranging from<br />

complete resistance to regression. Recently, it has been shown that microRNAs<br />

(miRNAs) play a key role in the initiation, progression and<br />

therapy response of cancer. Therefore, the identification of miRNAs as<br />

predictive markers for response remains very crucial.<br />

Materials and methods. Previously, we established in vitro models for<br />

studying the molecular basis of this heterogeneous tumor response. 12<br />

colorectal cancer cell lines were exposed to 3 µM of 5-fluorouracil and<br />

2 Gy of radiation. The pretherapeutic miRNA expression profiles of these<br />

cell lines were assessed using 60 K Agilent Human miRNA Microarray.<br />

Differences in treatment sensitivity of the cell lines and miRNAs<br />

expression were then correlated.<br />

Results. Using a linear model analysis, we identified 36 miRNAs whose<br />

expression levels correlated significantly with the heterogeneous sensitivity<br />

of the cell lines to chemoradiotherapy (p


Abstracts<br />

infiltrating lymphocytes (TIL). Additionally, immunogenic factors of<br />

the gastric tumors at hand were to be investigated.<br />

Methods. Tumor samples of 52 patients with gastric adenocarcinoma of<br />

the intestinal subtype located at the cardia were assessed using tissue<br />

microarrays. The relationship between subtypes of tumor infiltrating<br />

immune cells (CD3+, CD8+, CD20+, CD68+, GranzymeB+, FoxP3+<br />

and CXCR3+) in different histologic compartments and no evidence of<br />

disease (NED) – survival was investigated. To further understand the<br />

specific immunogenic tumoral environment human epidermal growth<br />

factor receptor 2 (Her2) overexpression and Ebstein-Barr virus (EBV) –<br />

status of the carcinomas were determined and set into relation to TIL<br />

infiltration.<br />

Results. A strong compartmentalization with high TIL counts in the tumoral<br />

stroma as compared to low intratumoral infiltration was noted.<br />

In the stromal compartment, an association of high FoxP3+ regulatory<br />

T cells with long NED-survival was observed, while high stromal<br />

CD68+/FoxP3+ ratios were linked to shorter NED-survival times. Her2<br />

overexpression/amplification had no correlation to TIL infiltration,<br />

whereas EBV infection showed an association with both intratumoral<br />

and stromal CD8+ cell accumulation. Stromal CXCR3+ T cell infiltration<br />

equalling Th1 cell infiltration showed an inverse correlation to T<br />

category.<br />

Conclusion. The association of Treg with improved outcome might be<br />

due to an inhibition of carcinogenic inflammatory processes. CD68+<br />

macrophages on the other hand are possible promoters of carcinogenesis.<br />

The diminishing CXCR3+ T cell infiltration with increasing T<br />

category suggests a subversion of Th1 immunoresponse in cancer progression.<br />

This underlines the important role of inflammation for early<br />

carcinogenesis.<br />

0435<br />

Circulating microRNAs in rectal cancer<br />

*J . Salendo1 , P . Jo1 , T . Beissbarth2 , M . Spitzner1 , H .A . Wolff3 , L .C . Conradi1 ,<br />

M . Grade1 , H . Becker1 , B .M . Ghadimi1 , J . Gaedcke1 1Universitätsmedizin Göttingen, Allgemein- und Viszeralchirurgie, Göttingen,<br />

Deutschland, 2Universitätsmedizin Göttingen, Medizinische Statistik,<br />

Göttingen, Deutschland, 3Universitätsmedizin Göttingen, Strahlentherapie<br />

& Radioonkologie, Göttingen, Deutschland<br />

Background. The identification of response in locally advanced rectal<br />

cancer (RC) to a 5-FU based chemoradiotherapy is a crucial step towards<br />

an individualization of the therapy. The impact of microRNAs<br />

(miRNAs) on progression or resistance in cancer has recently been described.<br />

Although their impact in patients’ blood has recently been described<br />

in different cancer types data in rectal cancer are scarce.<br />

Materials and methods. miRNAs were extracted from patient and healthy<br />

control plasma including C. elegans miRNA mimics for the normalisation<br />

process. Each miRNA was detected using SYBR-Green based<br />

miScript PCR system from Qiagen. 15 differentially regulated miRNAs<br />

that were retrieved from the comparison of rectal cancer and normal<br />

tissue based on miRNA microarray analyses were analysed in a first set<br />

of 17 patients. All patients were treated within the CAO/ARO/AIO-94<br />

and -04 trial of the <strong>German</strong> Rectal <strong>Cancer</strong> Study Group. Additionally,<br />

14 age and gender matched healthy controls were analysed. In a second<br />

set of 46 controls and 122 patients a subset of miRNAs was validated and<br />

analysed on postsurgical blood specimens.<br />

Results. 5 of the 15 analyzed miRNAs turned out to be significantly<br />

down regulated in plasma compared to healthy controls (miR-17, miR-<br />

18b, miR-20a, miR-31 and miR-193a-3p). Subsequently, a second set of<br />

patients was analysed and two of the previously identified miRNAs<br />

could be validated in this independent cohort. Interestingly, all miR-<br />

NAs were downregulated in the RC patients. Comparing pretherapeutical<br />

and postsurgical expression 4 out of 5 miRNAs were significantly<br />

differentially expressed.<br />

50 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Conclusion. This study demonstrates for the first time the differential<br />

expression of plasma miRNAs in RC patients compared to healthy controls.<br />

To assess the impact of miRNAs on response or prognosis prediction<br />

these results will be correlated to the clinical data and a more<br />

comprehensive approach will be undertaken.<br />

0440<br />

Isolation and characterisation of different stem cell-like subpopulations<br />

in an esophagus ascites<br />

*S . Stoelting1 , H . Ungefroren1 , H . Lehnert1 , F . Gieseler1 1UK S-H, Campus Lübeck, Med . Klinik I, Onkologie, Lübeck, Deutschland<br />

Background. First indication for the existence of cancer stem cells<br />

(CSCs) was made by J. Dick et al in 1994. They identified the presence<br />

of CSCs in acute lymphatic leukaemia. CSCs represent only 1% of the<br />

tumor but appear to be the only cells that are able to generate a new<br />

tumor. CSCs were discussed as the origin of tumor resistance and metastases.<br />

So far CSCs would be isolated and characterized only from solid<br />

tumors. Basack et al. (2009) detected cells similar to stem cells with specific<br />

markers in a NSCLC pleura effusion for the first time. Until know<br />

it is not clear whether only one population of stem cell like cells exist in<br />

maligne effusions or different subpopulations with stem cell characters.<br />

For the time being no data about the behaviour of those cells have been<br />

determined.<br />

Material and methods. We detected CSCs from an esophagus ascites<br />

with stemgent alkaline phosphatase staining kit II and characterised<br />

different subpopulations with stem cell markers by separating CD133+,<br />

CD133+/Lin- and TRA-1-60+ cells with the miltenyi separating kits.<br />

These cells had been cultured with the esophagus CSC medium from<br />

cell system and analysed by determined surface marker (e.g. CD133)<br />

with FACS, quantitative gene expression of stem cell transcription<br />

factors (Oct3/4, Sox2, Nanog, cMyc), expression of microRNA (system<br />

bioscience) and their behaviour of migration under TGFβ stimulation.<br />

Results. After separation of different cell subpopulations with stemness<br />

from an esophagus ascites we cultured the cells under specific conditions<br />

for CSCs. We obtained differences in gene expression of stem cell<br />

markers (e.g. Oct3/4, Nanog) and also for microRNA. We also obtained<br />

differences in migration behaviour. Under TGFβ stimulation TRA-1-<br />

60+ cells showed migration, in contrast the migration of CD133+ and<br />

CD133+/Lin− cells have been inhibited.<br />

Discussion. We demonstrated that cells with stemness not only exist<br />

within solid tumors but also in ascites. These cells exhibit markers like<br />

CD133 which describe for CSCs and TRA-1-60 which describes for pluripotent<br />

stem cells. The quantitative analysis of specific transcription<br />

factors and microRNA indicates that only the subpopulation of TRA-<br />

1-60+ cells feature a stem cell potential and maybe play an important<br />

role in metastases. This hypothesis is supported by the observance that<br />

only the TRA-1-60+ cells showed migration under TGFβ stimulation.<br />

The presented data clarify the importance of understanding CSCs and<br />

to generate a treatment.<br />

0444<br />

Generating scFv antibodies against pancreatic carcinoma from<br />

naïve human Phage Display Libraries for clinical application<br />

*E .-M . Siepert1 1Helmholtz Institute for Applied Biomedical Engineering, Experimental<br />

Medicine and Immunotherapy, Aachen, Deutschland<br />

Pancreatic carcinoma (PC) is an aggressive form of cancer characterized<br />

by its high potential for metastasis and thus resulting in a low survival<br />

rate. As the initial stages of this disease are almost asymptomatic, early<br />

detection, before metastasis occurs, is challenging because no reliable<br />

detection tools for early diagnosis and treatment of PC are available. In<br />

patients with metastasis the average survival rate of 5 years is less than


5%. Therefore, the need to develop tumour-specific therapies and tools<br />

for early diagnosis is significant. The aim of this study was to develop an<br />

immunotherapeutic approach for targeted diagnosis and treatment of<br />

pancreatic cancer by using highly specific human antibody fragments<br />

(scFv). Using the Phage Display Technology highly specific scFv were<br />

generated from the naïve human Tomlinson phage library in a two-step<br />

panning strategy with depletion on human peripheral blood lymphocytes<br />

(PBL) followed by a positive selection on the metastatic pancreatic<br />

cancer cell line (L3.6pl). Monoclonal phage ELISA identified 16 unique<br />

positive binders which were subsequently expressed in eukaryotic cells<br />

(HEK293T) as scFv-SNAP-tag fusion proteins. The SNAP-tag® is a novel<br />

tool for site specific conjugation of any benzylguanine-labeled molecule<br />

to a given protein, providing the imaging of tumor cells in vitro and in<br />

vivo. IMAC-purified fusion proteins were analyzed by protein ELISA<br />

and flow cytometry for their binding specificity on several pancreatic<br />

cancer cell lines. Eight clones were identified as recognizing L3.6pl cells<br />

with cross-reactivity to other pancreatic cancer-derived cell lines. To<br />

validate the selective binding of these clones to human pancreatic cancer<br />

cells, frozen primary tissue sections from patients with pancreatic<br />

carcinoma were used and selective binding of at least one individual clone<br />

to tumor cells over normal cells was shown. All clones are currently<br />

being tested for their ability for internalization in order to identify candidate<br />

clones for development of immunotoxins eliminating pancreatic<br />

cancer cells.<br />

0454<br />

The systematic assessment of health information on colorectal<br />

cancer screening in <strong>German</strong>y<br />

*M . Dreier1 , B . Borutta1 , G . Seidel1 , S . Kramer1 , I . Kreusel1 , J . Töppich2 ,<br />

E .M . Bitzer3 , M .-L . Dierks1 , U . Walter1 1Medizinische Hochschule Hannover, Institut für Epidemiologie, Sozialmedizin<br />

und Gesundheitssystemforschung, Hannover, Deutschland,<br />

2Bundeszentrale für gesundheitliche Aufklärung (BZgA), Köln, Deutschland,<br />

3Pädagogische Hochschule, Freiburg, Deutschland<br />

Objective. The informed choice to attend or not attend colorectal cancer<br />

screening tests (fecal occult blood test FOBT, screening colonoscopy)<br />

may be supported by evidence-based health information. The aim was<br />

to assess whether written health information on colorectal cancer screening<br />

meet the criteria of evidence-based health information.<br />

Methods. The development of a criteria list included the following steps:<br />

systematic literature review in 8/2010 in relevant electronic databases<br />

(including Medline, Embase, search period from 2000) and Internet,<br />

identification of recommendations and assessment tools for health information,<br />

extraction of the criteria, summary of the criteria by topics,<br />

review by external experts, modification. In 8/2010 major players in<br />

<strong>German</strong>y were asked for leaflets via email.<br />

Results. The criteria list was based on 16 documents with recommendations<br />

and 17 tools for health information and contains a total of 235<br />

criteria in the following categories: formal issues, information on the<br />

target disease, information on screening-colonoscopy/FOBT, readability<br />

and comprehensibility, layout, neutrality, correctness of the information.<br />

Input of free text ensures the transparency. An accompanying<br />

manual supports the assessment by giving the correct answers, based<br />

on systematic reviews, HTA reports, and guidelines. Eighteen flyers and<br />

13 brochures on colorectal cancer screening were identified and assessed.<br />

It turned out that information was often not given (including risks,<br />

quantification of the benefits), false information were given (“screening<br />

results in a gain in life years in any case”), benefits and risks of the procedure<br />

were not be represented in a balanced way, and information was<br />

partly misleading, e.g. the accuracy of colonoscopy was circumscribed<br />

as the safest kind of prevention, which could be misunderstood as a low<br />

risk of the procedure.<br />

Discussion. An evaluation concept was developed and applied, which<br />

goes beyond previous tools by considering not only the presence but<br />

also the correctness of information. It also allowed the detailed detection<br />

of missing information, distorted presented benefits and risks as well<br />

as of false and misleading information. The requirements for evidencebased<br />

patient information were currently not met by most of the offered<br />

leaflets in <strong>German</strong>y. The results may be used to revise existing leaflets<br />

or to develop new health information on colorectal cancer screening.<br />

0465<br />

Solid pseudopapillary tumor of the pancreas: a new name for an<br />

old enigmatic, but universally recognized entity<br />

*N . Vassos1 , A . Agaimy2 , P . Klein1 , W . Hohenberger1 , R . Croner1 1Universitätsklinikum Erlangen, Chirurgische Klinik, Erlangen, Deutschland,<br />

2Universitaetsklinikum Erlangen, Pathologisches Institut, Erlangen,<br />

Deutschland<br />

Background. Solid pseudopapillary tumor (SPT) of the pancreas is an<br />

infrequently-encountered tumor, typically affects young women without<br />

significant symptoms. Its behavior is relatively indolent and largely<br />

benign.<br />

Material and methods. We report a case series of four patients with SPT<br />

of pancreas, who were treated at our hospital between 2008 and 2011.<br />

The clinical, pathological and immunohistochemical parameters as<br />

well as the therapy and follow-up were investigated retrospectively.<br />

Results. All four patients were female whose ages ranged between 15 and<br />

42 years. Two patients were presented with abdominal pain, one patient<br />

with abdominal mass and one with acute abdominal signs following<br />

blunt trauma. The tumor’s size ranged between 1 and 16 cm. Two of them<br />

were diagnosed preoperatively through a percutaneous needle biopsy<br />

and the other two underwent surgery because of the high clinical and<br />

radiological suspicion of SPT. By immunohistochemistry, all four cases<br />

were stained strongly for vimentin, progesterone-receptor and beta-catenin<br />

and variably with pankeratin and neuroendocrine markers. The<br />

proliferation index (Ki-67) was less than 2%. The patients underwent<br />

surgical resection of the tumor and after a follow-up period between 3<br />

and 36 months, all of them were alive with no evidence of disease.<br />

Conclusion. SPT of pancreas should be considered in the differential diagnosis<br />

of any solid or partly cystic pancreatic or upper abdominal mass,<br />

particularly in young females. The tumor has a low malignant potential<br />

and the treatment of choice consists of surgical resection. Adequate surgical<br />

intervention is associated with an excellent prognosis.<br />

0466<br />

Management of liver metastases of gastrointestinal stromal<br />

tumors (GISTs)<br />

*N . Vassos1 , A . Agaimy2 , W . Hohenberger1 , R . Croner1 1Universitätsklinikum Erlangen, Chirurgische Klinik, Erlangen, Deutschland,<br />

2Universitätsklinikum Erlangen, Pathologisches Institut, Erlangen,<br />

Deutschland<br />

Introduction. Liver metastases and/or peritoneal dissemination are the<br />

main clinical manifestations of advanced GISTs. With the advent of tyrosine<br />

kinase inhibitors (TKI), the role of surgery in management of<br />

advanced GISTs has radically changed. The effectiveness of TKI-therapy<br />

has provided an increasing proportion of GIST-patients with liver<br />

metastases who are candidates for potentially curative therapy.<br />

Material and methods. We herein present our experience about management<br />

of liver metastases of GISTs, investigating in retrospective analysis<br />

clinical, macro-/microscopic and immunohistochemical criteria, surgical<br />

or TKI therapy and follow-up in these cases.<br />

Results. Within a 10-year period (2000–2009), 85 patients with GISTs<br />

were referred to our institution. In 24 patients (28.2%) metastatic disease<br />

was disclosed. Of these, 10 patients (11.7%; M:F=1:1) were rendered<br />

to have liver metastases. The mean age was 59 (range: 35–75) years. The<br />

primary GISTs were located in stomach (40%) and in small intestine<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

51


Abstracts<br />

(60%), expressed CD117 and/or CD34. Liver metastases were commonly<br />

multiple, distributed in both lobes (70%) and detected synchronously<br />

with primary tumor (n=4) or metachronously (n=6). The period of time<br />

between diagnosis of GIST and metachronous liver metastases ranged<br />

from 23 to 76 (mean period: 36.3) months. All patients with liver involvement<br />

were considered to treatment with imatinib. The liver metastases<br />

were estimated as resectable in 4 cases (R0). In recurrent (2/4, 50%) or<br />

resistant cases, other treatments were carried out, including radiofrequency<br />

ablation (RFA) and sunitinib or nilotinib therapy. During a<br />

mean follow-up of 52.6 months (range: 7–111 months), death for progressive<br />

disease occurred in 2 cases (20%). Eight patients (80%) were alive;<br />

five of them remained free of disease and the other three have maintained<br />

disease with partial response or stabilization.<br />

Conclusion. The liver is a common metastatic site for GISTs. Appropriate<br />

initial evaluation remains of paramount importance for selecting the<br />

correct treatment strategy. Combining surgery with TKI treatment is<br />

the most effective management for GIST patients with liver metastases.<br />

For unresectable disease, RFA, hepatic artery chemoembolization<br />

(TACE), TKI therapy, or any combination of these treatments can be<br />

considered. Multidisciplinary management of this disease is important<br />

for both curative and palliative treatment in these patients.<br />

0483<br />

Tumorinfiltrierende regulatorische T-Lymphozyten als prognostische<br />

Marker mit therapeutischer Relevanz beim Rektumkarzinom<br />

*T . Borschitz1 , D . Wohland1 , E . von Stebut2 1Deutsche Klinik für Diagnostik, Chirurgie und Koloproktologie, Wiesbaden,<br />

Deutschland, 2Universitätsmedizin Mainz, Core Facility-Histologie,<br />

Dermatologie, Mainz, Deutschland<br />

Fragestellung. Die Behandlung von Rektumkarzinomen erfordert eine<br />

stadiengerechte, optimierte Therapie. Dabei entscheiden Histologie/<br />

Eindringtiefe/Lymphknotenmetastasen sowohl über das Operationsverfahren<br />

(lokale vs. radikale Exzision), als auch (neo-)adjuvante Therapien.<br />

Ziel dieser Untersuchung war es, zu evaluieren, inwiefern die<br />

Infiltration des Tumors mit immunmodulierenden T-Lymphozyten<br />

prognostisch relevant und in Therapieentscheidungen einzubeziehen<br />

ist.<br />

Methode. Getrennt nach Lymphknotenmetastasen (n=40 N+/n=40 N0)<br />

wurden Tumorschnitte von 80 Patienten (8% T1, 44% T2, 46% T3, 3% T4)<br />

mit einem Follow-up von ≥5 Jahren untersucht, die nicht neoadjuvant<br />

behandelt wurden. Sechs Patienten (8%) wiesen im Verlauf Lokalrezidive<br />

(LR) auf, 14 (18%) synchrone und 10 (13%) metachrone Fernmetastasen<br />

(M). Es wurden tumorinfiltrierende CD4+/CD8+ Lymphozyten,<br />

CD57+ NK-Zellen sowie FoxP3+ bzw. CD25+ regulatorische T-Zellen<br />

(Treg) immunhistochemisch dargestellt. Durch Auszählen aller positiven<br />

Zellen und Mittlung von 5 repräsentativen Gesichtsfeldern/Tumor<br />

wurde die jeweilige Infiltrationsdichte quantifiziert und statistisch<br />

mittels Mann-Whitney-U-Test auf Unterschiede hinsichtlich T-Kategorie,<br />

Lymphknotenstatus (N0/N+), Grading (G) und LR-/M-Auftritt<br />

untersucht. Unterschiede im Gesamtüberleben (GSÜ) wurden mit Log-<br />

Rank-Test und Cox-Regression ausgewertet.<br />

Ergebnisse. Färbungen gegen CD4, CD8, CD57 und CD25 wiesen keine<br />

Unterschiede in den jeweiligen Verteilungen auf. Die FoxP3+ Treg-<br />

Dichte war bei T1 Karzinomen am höchsten und nahm mit zunehmender<br />

T-Kategorie signifikant ab (T1/2 vs. T3/4 p=0,002). Gleiches ergab<br />

sich für N+ und M1 gegenüber N0 (p=0,033) bzw. M0 Karzinomen (synchrone<br />

p=0,006/metachrone p=0,04/kombiniert p=0,004). Außerdem<br />

fanden sich bei „high-grade“- (G3–4) signifikant weniger FoxP3+ Tregs<br />

als bei „low-grade“- (G1–2) Karzinomen (p=0,012) und schließlich für<br />

hohe Treg-Infiltrationsdichten ein signifikant längeres GSÜ (p


Hauttumoren<br />

0022<br />

R1-Status bei fazialen Basalzellkarzinomen – Realität oder<br />

Mythos<br />

*L . Tischendorf1 1Praxis MKG-Chirurgie, Praxis, Halle, Deutschland<br />

Fragestellung. Aktuelle Leitlinien für die Behandlung von Basalzellkarzinomen<br />

(BCC) fordern den Einsatz der mikroskopisch kontrollierten<br />

Chirurgie und der sekundären Defektabdeckung speziell im Gesichtsbereich.<br />

Diese Ansicht ist wissenschaftlich nicht ausreichend belegt, vor<br />

allem nicht durch randomisierte kontrollierte Studien. Wir analysierten<br />

2 Fragen: 1.) Ist der R1-Status realistisch beurteilbar? 2.) Was ist der<br />

prognostische Wert des R1-Status?<br />

Material und Methodik. Ergebnisse der operativen Behandlung fazialer<br />

BCC (649 stationär 1948–1982 retrospektive R1-Bewertung, 847 ambulant<br />

1993–2007 prospektive R1-Bewertung). Berechnungen der Rezidivwahrscheinlichkeit<br />

(Kaplan-Meier) in Abhängigkeit von R1-Status.<br />

Ergebnisse. 1.) R1-Status beträgt bei unvorbehandelten BCC: 9% bzw.<br />

3%, bei rezidivierten: 8% bzw. 19%. 2.) Rezidivwahrscheinlichkeit ist 26fach<br />

(unvorbehandelte BCC) bzw. 3-fach (rezidivierte BCC) höher bei<br />

R1-Status. Nachgewiesen werden Tumorreste in 30–85%. 3. R1-Status<br />

beeinflusst Überleben nicht. Allerdings treten in 30% Zweitgeschwülste<br />

auf und die Lebenserwartung verkürzt sich im Vergleich zur Normalpopulation<br />

um 5 Jahre.<br />

Schlussfolgerungen. 1.) R1-Status beeinflusst Prognose nur begrenzt auf<br />

das Rezidivverhalten. 2.) Mikroskopisch kontrollierte Chirurgie bildet<br />

(auch in vereinfachten Modifikationen) R1-Status im lateralen Bereich<br />

sicher ab und kann die onkologische Sicherheit erhöhen. 3.) Verzögerte<br />

Defektabdeckungen bleiben seltenen Ausnahmefällen vorbehalten.<br />

0027<br />

Sensitization of melanoma cells for TRAIL-induced apoptosis by<br />

the kinase inhibitor indirubin is mediated through upregulation<br />

of p53 and death receptors<br />

*A . Berger1 , S .-A . Quast1 , M . Kunz2 , P . Langer3,4 1Charité – Universitätsmedizin <strong>Berlin</strong>, Klinik für Dermatologie und Allergologie,<br />

<strong>Berlin</strong>, Deutschland, 2University Hospital of Leipzig, Department of<br />

Dermatology and Allergy, Leipzig, Deutschland, 3University of Rostock, Institute<br />

of Organic Chemistry, Rostock, Deutschland, 4University of Rostock,<br />

Leibniz Institute of Catalysis e .V ., Rostock, Deutschland<br />

Background. No effective therapy is available for metastatic melanoma<br />

so far. An anti-tumour activity of indirubin is known from traditional<br />

Chinese medicine, and its derivative 8-Rha-beta has been described as<br />

a cyclin-dependent kinase inhibitor. However, the molecular basis underlying<br />

8-Rha-beta-induced apoptosis remained elusive. TNF-related<br />

apoptosis-inducing ligand (TRAIL) is known to trigger apoptosis in a<br />

variety of human cancer cells, while normal cells are largely spared.<br />

However, prevalent or inducible resistance prevented its efficient use in<br />

cancer therapy so far. TRAIL resistance in melanoma cell lines is frequently<br />

associated with downregulation of its agonistic receptors DR4<br />

and DR5.<br />

Methods. TRAIL-sensitive melanoma cell lines A-375 and Mel-HO<br />

were compared to permanently resistant MeWo and Mel-2a as well as<br />

to cell lines selected for death ligand resistance A-375-TS, Mel-HO-TS<br />

(TRAIL-selected) and A-375-CS, Mel-HO-CS (selected with an agonistic<br />

CD95 antibody, CH-11, for resistance to the death ligand CD95L).<br />

Results. Both death ligand-sensitive cell lines (A-375 and Mel-HO) responded<br />

with enhanced apoptosis to combinations of death ligands<br />

(TRAIL, CH-11) with 8-Rha-beta. The indirubin was further able to<br />

sensitize resistant Mel-2a and A-375-TS (DR4+, DR5+) for death ligand-<br />

induced apoptosis. In contrast, MeWo and Mel-HO-TS (DR4−, DR5+)<br />

remained without effect. The unraveling of proapoptotic signaling<br />

pathways in A-375-TS revealed strong enhancement of the effector caspase-3<br />

in the combination. Significant loss of the mitochondrial membrane<br />

potential, release of cytochrome c and apoptosis-inducing factor<br />

(AIF) as well as processing of caspase-9 was evident for activation of<br />

intrinsic apoptosis pathways. On the other hand, enhanced surface expression<br />

of DR4 and DR5 as well as processing of initiator caspase-8 was<br />

indicative for activation of extrinsic apoptosis pathways. Remarkably,<br />

this combination was able to overcome an apoptosis block due to ectopic<br />

Bcl-2 overexpression. The effects may be explained by downregulation<br />

of antiapoptotic proteins Mcl-1 and XIAP as well as by activation of<br />

the master regulator p53 seen in course of 8-Rha-beta treatment.<br />

Conclusions. Apoptosis resistance to TRAIL may be overcome by kinase<br />

inhibitors, and the indirubin 8-Rha-beta appears as a promising therapeutic<br />

strategy for melanoma cells, dependent on their expression of<br />

TRAIL receptors.<br />

0032<br />

Sensitization of melanoma cells for death ligand-induced apoptosis<br />

by the potassium channel inhibitor TRAM-34 correlates<br />

with the intrinsic pathway and SMAC release<br />

*S .-A . Quast1 , A . Berger1 , N . Buttstädt2 , K . Friebel2 , R . Schönherr2 , *J . Eberle1 1Charité – Universitätsmedizin <strong>Berlin</strong>, Klinik für Dermatologie und Allergologie,<br />

<strong>Berlin</strong>, Deutschland, 2Universität Jena, Zentrum für molekulare<br />

Biomedizin, Jena, Deutschland<br />

Introduction. Melanoma only poorly responds to chemotherapy, and the<br />

death ligand TRAIL, which mediates apoptosis via TRAIL-R1/DR4 and<br />

TRAIL-R2/DR5, appears as a promising therapeutic strategy. However,<br />

prevalent and inducible TRAIL resistance may limit its clinical use in<br />

melanoma cells. Potassium channels as KCa3.1 are involved in tumor<br />

progression and may serve as additional targets.<br />

Material and methods. Functional expression of KCa3.1 in melanoma<br />

cells is demonstrated by quantitative RT-PCR analysis and patch-clamp<br />

recordings. We prove that TRAM-34, a selective KCa3.1 inhibitor,<br />

strongly enhanced TRAIL sensitivity of melanoma cells and overcomes<br />

prevalent and inducible TRAIL resistance. Unraveling the signaling<br />

pathways revealed that TRAM-34 was able to overrule the lack of caspase-3<br />

processing in selected TRAIL-resistant cells. Disruption of the<br />

mitochondrial membrane potential and the release of proapoptotic mitochondrial<br />

factors such as SMAC clearly indicate the involvement of<br />

the mitochondrial apoptosis pathway. Importantly, TRAM-34 mediated<br />

enhancement of the TRAIL-induced apoptosis was critically dependent<br />

on the expression of either Bax or Bak, as shown in genetic models,<br />

and apoptosis was abrogated in Bax/Bak double knockout cells as well<br />

as by overexpression of the antiapoptotic Bcl-2 protein Bcl-2.<br />

Conclusion. Taking into account the physiological role of death ligands<br />

in immune surveillance, sensitization of melanoma cells for death ligands<br />

may be supportive for an anti-tumor immune response. The data<br />

prove the critical role of the mitochondria in TRAIL resistance and present<br />

a new strategy for TRAIL sensitization based on the targeting of<br />

potassium channels. Furthermore, combinations with the potassium<br />

channel inhibitor TRAM-34 may help for a breakthrough of TRAILmediated<br />

strategies in melanoma.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

53


Abstracts<br />

0251<br />

Mechanism analysis of melanoma chemosensitization by<br />

MIDGE-mediated hTNF-alpha gene transfer in combination with<br />

vindesine<br />

*D . Kobelt1 , J . Aumann2 , M . Schmidt3 , M . Schroff3 , I . Fichtner4 , P .M . Schlag5 ,<br />

W . Walther2 1MDC <strong>Berlin</strong> Buch, Chirurgie/chirurgische Onkologie, <strong>Berlin</strong>, Deutschland,<br />

2Experimental and Clinical Research Center, a joint cooperation<br />

between the Charité Medical Faculty and the MDC for Molecular Medicine,<br />

Chirurgie/chirurgische Onkologie, <strong>Berlin</strong>, Deutschland, 3MOLOGEN AG,<br />

<strong>Berlin</strong>, Deutschland, 4MDC <strong>Berlin</strong> Buch, Experimental Pharmacology, <strong>Berlin</strong>,<br />

Deutschland, 5Charité University Medicine, Charité Comprehensive <strong>Cancer</strong><br />

Center, <strong>Berlin</strong>, Deutschland<br />

Non-viral vectors are frequently used for clinical gene therapy trials.<br />

Compared to viral vectors they offer a better safety profile due to their<br />

limited ability to integrate or to provoke immune reactions. Besides<br />

long known plasmids as gene transfer vectors there are novel non-viral<br />

vectors available. Among those, the MIDGE vector technology (Mologen,<br />

<strong>Berlin</strong>, <strong>German</strong>y) offers the smallest vectors for transient gene<br />

transfer. They are linear double stranded DNA molecules with end-sealing<br />

loops at their ends. Using those vectors it is possible to avoid the<br />

transfer of any unnecessary genetic material like ORIs, CpG islands or<br />

resistance genes besides the expression cassette.<br />

In our in vitro experiments using luciferase reporter gene we showed,<br />

that the MIDGE vector is superior compared to plasmid vectors. In<br />

different human melanoma (A375, MeWo, SKMEL-5, SK-MEL-28) and<br />

colon carcinoma (HCT116, SW480) cell lines, reporter gene expression<br />

increased up to 10-fold after equimolar transfection and >100-fold after<br />

equimolar electroporation compared to the parental plasmid harboring<br />

the identical expression cassette. This increase was due to an enhanced<br />

transgene expression when using MIDGE vectors as shown by expression<br />

studies at the mRNA level by qRT-PCR. For a therapeutic approach<br />

we were combining the MIDGE based gene transfer of human tumor<br />

necrosis factor alpha (hTNF-alpha) with vindesine in vitro and in vivo.<br />

The equimolar gene transfer by transfection/electroporation in vitro or<br />

in vivo jet-injection gene transfer in melanoma xenotransplants showed<br />

improved MIDGE-mediated transgene expression. The hTNF-alpha<br />

gene transfer led to an up to 10-fold reduction of the vindesine IC50 in<br />

vitro. Analyzing the mechanism of enhanced cell killing using lactate<br />

dehydrogenase (LDH) release assay and caspase 8, 9, 3/7 activation assays<br />

we showed in vitro, that particularly an accelerated activation of<br />

caspases leads also to accelerated apoptosis.<br />

The in vivo tumor growth was significantly reduced by MIDGE-based<br />

hTNF-alpha gene transfer in combination with i.v. vindesine treatment.<br />

Additionally, the MIDGE vector showed a good safety profile with low<br />

systemic leakiness and fast clearance of the vector after intratumoral<br />

jet-injection. The MIDGE vector demonstrated its great potential for<br />

future clinical application in tumor gene therapy.<br />

0321<br />

Bone morphogenetic protein and nodal induce epithelial-mesenchymal<br />

transition in melanoma cells and confer a neural crest<br />

phenotype to melanocytes in vitro and in vivo<br />

*C . Busch1 , C . Garbe1 1Universitäts-Hautklinik, Dermatologische Onkologie, Tübingen, Deutschland<br />

During embryonic development, TGF-β family members nodal and<br />

bone morphogenetic protein-2 (BMP-2) induce an epithelial-mesenchymal<br />

transition (EMT) in the neural crest. Here we demonstrate numerous<br />

effects of BMP-2, BMP-7 and nodal, their antagonists noggin and<br />

lefty, and the nodal receptor (Alk4/5/7) antagonist SB431542 on melanoma<br />

cells and melanocytes.<br />

54 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

There was no effect on cell cycle or cell proliferation. In melanoma cells<br />

aggregate formation was reduced by agonist treatment and increased<br />

by antagonists. Migration and invasion were increased by agonists and<br />

blocked by antagonists. Western Blot analyses showed a down-regulation<br />

of neural crest proteins Slug and SOX9 upon antagonist treatment.<br />

mTOR signalling was also inhibited by antagonists. In epidermal skin<br />

reconstructs invasion of melanoma cells was reduced by antagonists.<br />

BMP-2 and nodal induced invasiveness in radial growth phase melanoma<br />

cells in epidermal reconstructs. In vivo, the SB431542 entirely<br />

abrogated neural crest migration of SKMel28 cells upon transplantation<br />

into the chick embryonic neural tube. Cytoplasmatic expression of<br />

nodal was confined to melanoma cells performing EMT. Noggin and<br />

SB431542 significantly inhibited invasion of BLM melanoma cells in a<br />

newly established in vivo model of brain metastasis in the chick embryo.<br />

Agonists (BMP-2, BMP-7, nodal) conferred a neural crest phenotype<br />

to primary human melanocytes: They reduced adhesiveness, induced<br />

migration and invasion in vitro, induced neural crest-specific proteins<br />

Slug and SOX9, and mTOR signalling. In vivo BMP-2 and nodal induced<br />

EMT in melanocytes transplanted into the chick embyonic neural<br />

crest, thus behaving like melanoma cells in the same experimental setup.<br />

Expression of nodal and its receptors were determined in a newly-generated<br />

melanoma tissue microarray. Expression of nodal receptors significantly<br />

increased from nevi to primary melanoma. Further, BMP-2<br />

levels were determined in plasma of 40 melanoma patients and healthy<br />

controls. BMP-2 levels were significantly higher in plasma of patients<br />

with a short survival time when compared to long-term survivors.<br />

In summary, we highlight that BMP and nodal are crucial for melanoma<br />

cell invasiveness in vitro and in vivo. Plasma level of BMP-2 turned<br />

out to be a novel biomarker for rapid disease progression in melanoma<br />

patients. Together, we are able to demonstrate that BMP and nodal represent<br />

highly crucial therapeutic targets to prevent melanoma progression.<br />

0357<br />

The BRAFV600E kinase inhibitor vemurafenib induces endoplasmic<br />

reticulum stress-mediated apoptosis in BRAFV600E mutated<br />

melanoma cells<br />

*D . Beck1 , H . Niessner1 , D . Kulms2 , C . Garbe1 , F . Meier1 1Universität Tübingen, Dermatologische Onkologie, Tübingen, Deutschland,<br />

2Universität Stuttgart, Institute of Cell Biology and Immunology,<br />

Stuttgart, Deutschland<br />

Background. In a previous study, we observed that the pan-RAF inhibitor<br />

sorafenib induces upregulation of endoplasmic reticulum (ER)<br />

stress-related genes and apoptosis in melanoma cells in vitro. In this<br />

study, we investigated whether vemurafenib, which selectively inhibits<br />

the BRAFV600E kinase and demonstrates potent antitumor activity in<br />

melanoma patients with the BRAFV600E mutation, induces ER stressmediated<br />

apoptosis.<br />

Methods and results. The BRAFV600E kinase inhibitor vemurafenib inhibited<br />

growth, induced caspase-dependent apoptosis and upregulated<br />

the ER stress-related genes p8, CHOP, ATF4, ATF3 and TRB3 mRNA<br />

levels exclusively in BRAFV600E mutated melanoma cell lines. Apoptosis<br />

was correlated with the induction of the proapoptotic BH3-only protein<br />

Bim-particularly Bim short, which is linked to ER stress-mediated<br />

apoptosis. Western blot analysis showed that vemurafenib increases the<br />

protein levels of the ER stress marker CHOP in BRAF mutated but not<br />

in NRAS mutated melanoma cells. Furthermore, electron microscopy<br />

showed typical morphological signs of ER stress, in particular significant<br />

swelling of the endoplasmic reticulum lumen of BRAFV600E<br />

mutated melanoma cells treated with vemurafenib. siRNA inhibition<br />

of ATF4 diminished melanoma cell apoptosis induced by vemurafenib.<br />

Furthermore, classical ER stress inducers such as thapsigargin and tunicamycin<br />

potently inhibited growth, induced apoptosis and suppressed


invasive tumor growth of melanoma cells. Moreover, both thapsigargin<br />

and tunicamycin upregulated p8 and CHOP and induced apoptosis in<br />

vemurafenib-resistant melanoma cells.<br />

Conclusions. These data suggest that the BRAFV600E kinase inhibitor<br />

vemurafenib induces apoptosis in BRAFV600E mutated melanoma<br />

cells through upregulation of ER stress-related genes.<br />

Lungentumoren<br />

0097<br />

A multi-centric, open-label, phase II study investigating the combination<br />

of RAD001 (everolimus) with paclitaxel and carboplatin<br />

in first line treatment of patients with advanced (stage IV) Large<br />

Cell Lung <strong>Cancer</strong> with neuroendocrine differentiation (LCNEC)<br />

*C . Grohé1 , O . Zaba1 , N . Reinmuth2 , I . Nimmrich3 , J . Stieglmaier4 , C . May4 ,<br />

M . Serke5 , M . Thomas2 1Evangelische Lungenklinik <strong>Berlin</strong>, Pneumologische Klinik, <strong>Berlin</strong>, Deutschland,<br />

2Thoraxklinik am Universitätsklinikum Heidelberg, Onkologie der<br />

Thoraxtumoren, Heidelberg, Deutschland, 3i .A . Novartis Pharma GmbH,<br />

<strong>Berlin</strong>, Deutschland, 4Novartis Pharma GmbH, Nürnberg, Deutschland,<br />

5Lungenklinik Hemer, Abt .Pneumologie III, Hemer, Deutschland<br />

Neuroendocrine tumors (NET) of the lung can be divided into typical<br />

carcinoid (TC), atypical carcinoid (AC), large cell neuroendocrine carcinoma<br />

(LCNEC) and small cell lung carcinoma (SCLC). LCNEC, which<br />

accounts for approximately 3% of all lung cancers, progresses rapidly, is<br />

aggressively metastatic, and exhibits a poor prognosis, with currently<br />

no curative treatment option. Upcoming targeted therapies such as angiogenesis<br />

inhibitors, tyrosine kinase inhibitors, and mTOR inhibitors<br />

are discussed as promising approaches to improve outcome of LCNEC.<br />

RAD001 (everolimus) is an inhibitor of mTOR, a component of the PI3/<br />

AKT/mTOR pathway known to be dysregulated in numerous human<br />

cancers. RAD001 is approved for treatment of metastatic renal cell cancer<br />

and known to be effective in pancreatic neuroendocrine tumors.<br />

In the presented trial for advanced (stage IV) LCNEC patients, RAD001<br />

is combined with carboplatin and paclitaxel, a standard chemotherapy<br />

routinely used in both non-small cell lung cancer (NSCLC) and smallcell<br />

lung cancer (SCLC) patients. The primary objective of this study<br />

is to evaluate the efficacy of this treatment in patients with advanced<br />

LCNEC. The primary endpoint is the proportion of patients progression-free<br />

after three months. Main inclusion criteria are histologically<br />

confirmed stage IV LCNEC (at least positive for one of the neuroendocrine<br />

markers CD56, Synaptophysine, Chromogranine A), measurable<br />

disease according to RECIST, adequate bone marrow, renal, and liver<br />

function. Main exclusion criteria are symptomatic CNS metastases, prior<br />

treatment for advanced LCNEC, and any severe other medical condition.<br />

Patients receive four cycles of combined treatment and are allowed<br />

to continue with RAD001 treatment as long as they benefit from treatment.<br />

The trial is open for recruitment and seeking 85 patients at 10 sites<br />

in <strong>German</strong>y. The study design will be presented in detail.<br />

In summary, a combined therapy of carboplatin and paclitaxel with the<br />

mTOR inhibitor RAD001 might be a promising approach for more efficient<br />

treatment of LCNEC patients.<br />

0123<br />

Active participation in a sports club has a protective effect on the<br />

development of lung cancer in smokers<br />

*A . Schmidt1 , J . Jung1 , N . Ernstmann1 , E . Driller1 , M . Neumann2 , A . Staratschek-Jox3<br />

, C . Schneider4 , J . Wolf5 , H . Pfaff1 1Universität Köln, Institut für Medizinsoziologie, Versorgungsforschung<br />

und Rehabilitationswissenschaft der Humanwissenschaftlichen Fakultät<br />

und Medizinischen Fakultät der Universität zu Köln, Köln, Deutschland,<br />

2Medical Department of the Private University of Witten/Herdecke,<br />

Gerhard Kienle Institute for Medical Theory, Integrative and Anthroposophic<br />

Medicine, Integrated Curriculum for Anthroposophic Medicine<br />

(ICURAM), Witten, Deutschland, 3University Bonn, LIMES (Life and Medical<br />

Sciences Bonn), Genomics and Immunoregulation, Bonn, Deutschland,<br />

4University Hospital of Cologne, Department III for Internal Medicine, Köln,<br />

Deutschland, 5University Hospital of Cologne, First Department of Internal<br />

Medicine, Molecular Tumour Biology and Tumour Immunology & Centre<br />

for Integrated Oncology (CIO), Köln, Deutschland<br />

Background. This study analyzes the effect of social networks and participation<br />

in a sports club on the development of lung cancer in patients<br />

who smoke. Our hypothesis is that study participants lacking social<br />

support are at a greater risk for lung cancer than those who have social<br />

support.<br />

Methods. Data for the study were taken from the Cologne Smoking<br />

Study (CoSmoS), a retrospective case-control study examining potential<br />

psychosocial risk factors for the development of lung cancer. Our<br />

sample consisted of n=158 participants who had suffered lung cancer<br />

and n=144 control group participants. Both groups had a history of<br />

smoking. Data on social support were collected by asking participants<br />

whether they participate in a sports club and about the number of<br />

friends and relatives in their social environment. In addition, sociodemographic<br />

data and data on pack years were collected to control for<br />

potential confounders. Logistic regression was used for the statistical<br />

analysis.<br />

Results. The results revealed that participants who participate in a<br />

sports club are at a lower risk for lung cancer than those who do not<br />

(n=302; adjusted OR=0.435; CI=0.222–0.853). Number of friends and<br />

relatives had no statistically significant influence on the development<br />

of the disease.<br />

Conclusions. The results of the study suggest that there is an association<br />

between smokers who have suffered lung cancer and participation in a<br />

sports club. In the study sample, participation in a sports club seemed<br />

to have a greater protective effect than a social network of friends and<br />

relatives.<br />

0149<br />

Pulmonary neuroendocrine tumours: prevalence in 1244 resected<br />

patients and analysis of patient characteristics, smoking<br />

habits and tumour stage<br />

*E .-R . Walburga1 1Kliniken der Stadt Köln, Lungenklinik, Köln, Deutschland<br />

Objective. Neuroendocrine tumours of the lung can be divided in typicalcarcinoid<br />

(TC), atypical carcinoid (AT), large cell neuroendocrine<br />

carcinoma (LCNEC) and small cell lung carcinoma (SCLC). Apart from<br />

SCLC which accounts for 20–25% of pulmonary tumors, carcinoids and<br />

LCNEC are rare tumors with a reported prevalence of approximately<br />

3% among surgically resected lung cancers. Generally speaking there<br />

is only little information on the prevalence of neuroendocrine tumors<br />

in resected patients so that we would like to present the data collected<br />

our institution.<br />

Patients and method. Retrospective analysis of 1244 surgically resected<br />

lung cancer patients in our institution between January 2007 and<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

55


Abstracts<br />

December 2010. For patients with a diagnosis of TC, AT and LCNEC we<br />

compared the data in terms of age, sex, smoking habits and tumor stage.<br />

Results. Among the resected patients 17 (1.7%) were diagnosed with TC,<br />

6 with AT (0.6%) and 25 patients with LCNEC (2.5%). A mixed histology<br />

of LCNEC and SCLC was found in 8 out the 25 patients with a LCNEC.<br />

LCNEC highly correlated with smoking (all were smokers) and the patients<br />

were diagnosed at a later stage compared to those with carcinoids.<br />

Patients with TC and AT happened more likely to be women, neversmokers<br />

and were mainly diagnosed in stage I. There was no significant<br />

difference in age between these groups.<br />

Conclusions. Neuroendocrine tumours of the lung are rare. Retrospective<br />

analysis of this data allows us to differentiate between these patients<br />

in terms of prognosis. The importance of clinical trials is underlined<br />

especially for patients with LCNEC as they have a poor prognosis. Two<br />

new clinical Trials are initiated to examine the efficacy and safety of<br />

Pasireotid LAR (SOM230) and Everolimus (RAD 001) in the treatment<br />

of LCNEC.<br />

0367<br />

Expression profiling of serum microRNAs in non-small cell lung<br />

cancer<br />

S . Kaduthanam1,2 , T . Muley2 , M . Meister2 , J .C . Brase1 , M . Johannes1 , S . Gade1 ,<br />

F .F . Herth3 , H . Dienemann4 , H . Sültmann1 , *R . Kuner1 1 2 DKFZ/NCT, AG Krebsgenomforschung, Heidelberg, Deutschland, Thoraxklinik,<br />

University of Heidelberg, Translational Research Unit, Heidelberg,<br />

Deutschland, 3Thoraxklinik, University of Heidelberg, Department of Pneumology<br />

and Critical Care Medicine, Heidelberg, Deutschland, 4Thoraxklinik, University of Heidelberg, Department of Thoracic Surgery, Heidelberg,<br />

Deutschland<br />

Introduction. Lung cancer is the leading cause of cancer related death<br />

worldwide. At the time of diagnosis, about 40% of non-small cell lung<br />

cancer (NSCLC) patients already have metastases, which lead to a worse<br />

prognosis. Detection of NSCLC at early stage and the subsequent surgical<br />

resection strongly increase the 5-year survival rate. However, even<br />

for early-stage tumor diagnosis, the outcome is critically determined by<br />

metastatic spread: About 30–50 % of patients encounter a recurrence<br />

after surgery for lung cancer. At the time of diagnosis, those patients<br />

might benefit from additional treatment like chemotherapy and radiation.<br />

The aim of the study was to identify serum microRNAs associated<br />

with early relapse of NSCLC patients.<br />

Methods. The study included serum from 231 patients with NSCLC<br />

diagnosis, chronic obstructive pulmonary disease (COPD) or healthy<br />

controls. Upon RNA extraction, qRT-PCR based microRNA screening<br />

using low-density arrays (667 microRNAs) was performed from a subset<br />

of 40 patients. Several microRNA candidates were further validated in<br />

an independent patient cohort. Moreover, microRNA expression was<br />

compared between serum and tissues of the same NSCLC patients including<br />

matched tumor and normal specimens.<br />

Results. The screening experiment suggested six circulating microR-<br />

NAs to be associated with NSCLC relapse. Two serum microRNAs<br />

could be validated in an independent cohort to be differentially abundant<br />

between patients with early and late relapse. The abundance of<br />

microRNAs was also found to be influenced by the non-malignant lung<br />

disease COPD, which represent a risk factor for lung cancer. Moreover,<br />

microRNAs were found to be similarly abundant in serum and tissues<br />

of NSCLC patients.<br />

Conclusion. In this study, we have found promising circulating microR-<br />

NAs associated with early relapse of NSCLC. The abundance of microR-<br />

NA biomarkers can be influenced by other lung diseases like COPD.<br />

56 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0432<br />

Debulking surgery followed by adjuvant chemoradiation in<br />

malignant pleural mesothelioma<br />

*S . Bölükbas1 , M . Eberlein2 , A . Fisseler-Eckhoff3 , D . Ghezel-Ahmadi1 , J . Schirren1<br />

1Dr . Horst Schmidt Klinik, Thoraxchirurgie, Wiesbaden, Deutschland,<br />

2Carver College of Medicine, Division of Pulmonary, Critical Care and Occupational<br />

Medicine, Iowa City, USA, 3Dr . Horst Schmidt Klinik, Institut für<br />

Pathologie und Zytologie, Wiesbaden, Deutschland<br />

Objective. To investigate the effectiveness of extended debulking surgery<br />

in terms of lung-sparing radical pleurectomy (RP) within a standardized<br />

multimodality treatment of malignant pleural mesothelioma<br />

(MPM).<br />

Methods. All patients with histologically proven MPM and without<br />

prior treatment for MPM were assessed for trimodality therapy in a<br />

prospective, non-randomized study from November 2002 to December<br />

2008: RP (visceral and parietal pleurectomy) followed by 4 cycles<br />

of chemotherapy (Cisplatin/Pemetrexed) and radiation of the intervention<br />

sites (21 Gy in 3 fractions). Primary end-point was overall survival.<br />

Secondary end-points were progression-free survival (PFS), patterns of<br />

recurrence, morbidity and mortality.<br />

Results. Fifty-two out of 135 consecutive patients were included in the<br />

study. Forty-nine patients (94%) completed the trimodality therapy.<br />

Surgical morbidity and mortality were 23.1% (12/52) and 1.9% (1/52),<br />

respectively. Primary histology was epithelial (80.8%). Macroscopic<br />

complete resection (MCR) could be achieved in 65.4%. Thirty patients<br />

(57.7%) had advanced disease at International Mesothelioma Interest<br />

Group (IMIG) stages III/IV. Mean follow-up was 26.9 months. Median<br />

survival was 26.3 months. One- and 5-year-survival rates were 76% and<br />

33%, respectively. Mean PFS was 21.5 months. The sites of failure were<br />

locoregional (28/51, 54.9%), distant (10/51, 19.1%) and both (2/51, 3.9%).<br />

Significant survival differences were seen for MCR vs. incomplete resections<br />

(p


were inoperable at the time of diagnosis. Twenty patients underwent<br />

resection with en bloc hemivertebrectomy (n=16) or total vertebrectomy<br />

(n=4). Induction chemotherapy was given to 6 patients (30%). Complete<br />

resection rate (R0) was achieved in 16 patients (80%). Morbidity<br />

and mortality rates were 40% and 0%, respectively. Adjuvant radiation<br />

(n=14) or chemoradiation (n=6) were administered with 66 Gy. The<br />

mean survival was 46.0 months. Five-year survival for patients who<br />

underwent surgery (n=20) was 47%. Inoperability was associated with<br />

poorer survival (14.0 months; p=0.004). Sublobar resections (p=0.002)<br />

and incomplete resections (p=0.02) were negative prognostificator. A<br />

trend towards prolonged survival were observed in patients with adjuvant<br />

chemoradiation (p=0.088), hemivertebrectomy (p=0.062) and<br />

age


Abstracts<br />

Discussion. Patients undergoing cancer treatment experienced severe<br />

reductions in their level of PA. Inpatient stays especially affected PA due<br />

to being restricted on the ward. Patients with a bone tumor showed the<br />

greatest limitations which is attributable to the consequences of surgery.<br />

Patients were at an increased risk for sustained inactivity. Consequently<br />

patients being restricted to the ward and especially patients with a<br />

bone tumor should receive special attention to prevent inactivity related<br />

negative health effects. This baseline data emphasizes the need for interventions<br />

individually tailored to the patients’ well-being. While wellestablished<br />

in adult cancer treatment, this has not yet been sufficiently<br />

taken into account in children. The method used in the study could be<br />

an appropriate tool to compare different cancer entities, points in time<br />

and the effects of intervention.<br />

0207<br />

Costs of Posaconazole compared to standard prophylaxis in patients<br />

with a high-risk of invasive fungal diseases: an economic<br />

analysis from the Cologne Cohort of Neutropenic Patients<br />

*S . Heimann1 , O .A . Cornely1 , H . Wisplinghoff2 , M .J .G . Vehreschild1 , B . Franke1 ,<br />

J .-P . Glossmann1 , J . Vehreschild1 1 2 Uniklinik Köln, Klinik I für Innere Medizin, Köln, Deutschland, Uniklinik<br />

Köln, Institut für Medizinische Mikrobiologie, Immunologie und Hygiene,<br />

Köln, Deutschland<br />

Background. Prior trials have demonstrated efficacy and effectiveness<br />

of posaconazole in the prophylaxis of invasive fungal diseases (IFD)<br />

in high-risk patients. Controversy exists about the cost effectiveness of<br />

posaconazole prophylaxis in neutropenic patients with a high risk of<br />

invasive fungal diseases. We performed an analysis comparing the direct<br />

costs of posaconazole prophylaxis against topical polyene (thrush)<br />

prophylaxis in patients with acute myelogenous leukemia (AML) and<br />

myelodysplastic syndrome (MDS).<br />

Methods. Data of AML/MDS patients receiving remission-induction<br />

chemotherapy were extracted from the Cologne Cohort of Neutropenic<br />

Patients to compare hospital costs of patients before (2003–2005) and<br />

after (2006–2008) introduction of posaconazole prophylaxis. All cases<br />

were part of an earlier analysis demonstrating effectiveness of posaconazole<br />

over topical prophylaxis [Vehreschild et al., J Antimicrob Chemother.<br />

2010 Jul;65(7):1466–71]. Duration on general ward, intensive<br />

care unit, mechanical ventilation, diagnostic procedures and all antiinfective<br />

drugs were included into the cost analysis.<br />

Results. Patient groups were well matched according to age, gender,<br />

underlying disease, and duration of neutropenia. The average costs per<br />

patient in the posaconazole group (n=76) and the topical polyene group<br />

(n=81) were 23,235 € (95% CI: 19,722–26,749 €) and 26,531 € (95% CI:<br />

21,887–31,175 €) per patient, respectively. Average daily treatment costs<br />

were 495 € (95% CI: 434–555 €) and 508 € (95% CI: 433–582 €). Antifungal<br />

treatment costs were nominally lower in the posaconazole group<br />

(6,773 € [95% CI: 5,187–8,360 €] vs. 7,419 € [95% CI: 5,062–9,775 €]). The<br />

costs for other anti-infectives were also numerically decreased in the<br />

posaconazole group (4,845 € [95% CI: 4,019–5,671 €] vs. 5,402 € [95%<br />

CI: 4,507–6,297 €]). Average duration of ICU stays were 1.79 (95% CI:<br />

0.68–2.90) days per patient for the posaconazole group compared to 3.83<br />

(95% CI: 1.53–6.13) days per patient in the topical polyene group. Costs<br />

for diagnostic procedures were 611 € (95% CI: 478–744 €) and 653 € (95%<br />

CI: 552–754 €) per patient, respectively.<br />

Conclusions. In our hospital, there was a trend towards cost-saving by<br />

posaconazole prophylaxis in patients receiving remission-induction<br />

chemotherapy. These cost savings were demonstrated in all aspects taken<br />

into consideration, including overall treatment costs as well as cost<br />

of anti-infective and antifungal medication.<br />

58 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0234<br />

Bedeutung von CT-Größe und -Dichte (“size and attenuation<br />

CT-SACT”) von residuellen Raumforderungen nach spezifischer<br />

Therapie follikulärer Non-Hodgkin-Lymphome<br />

*M . Horger1 , D . Spira1 1Eberhard-Karls-Universität Tübingen, Radiologie, Tübingen, Deutschland<br />

Ziel. Evaluation der CT-Dichte-Ratio von residuellen Tumormanifestationen<br />

bei Patienten mit follikullären Non-Hodgkin-Lymphome (FL)<br />

am Ende der Therapie verglichen mit den Ausgangsbefunden und Ermittlung<br />

deren prognostischer Bedeutung.<br />

Material und Methodik. Es konnten retrospektiv über das hauseigene<br />

digitale Datenarchiv im Zeitraum 2002–2010, 52 konsekutive Patienten<br />

mit FL welche am Ende der Therapie noch residuelle Lymphommanifestationen<br />

beibehalten hatten und sich sowohl in der Primärdiagnostik<br />

als auch zum Therapieabschluss einer kontrastmittelangehobener<br />

Ganzkörper-CT unterzogen hatten, identifiziert werden. Eine Schwächungsratio,<br />

definiert als Quotient von CT-Dichte zwischen Tumor und<br />

umliegender Muskulatur (HU) wurde anschließend für beide Zeitpunkte<br />

berechnet. Die Größe der analysierten Lymphommassen wurde<br />

als Produkt von Länge und Breite dieser Befunde registriert. 28 von 52<br />

Patienten wurden dann im weiteren Verlauf über ≥2 Jahre nach Therapieabschluss<br />

kontrolliert und die Ergebnisse mit dem rezidivfreien<br />

Intervall korreliert.<br />

Ergebnisse. AR und Tumorgröße nahm signifikant ab im Vergleich Ausgang-<br />

zu Endtreatment-Untersuchung bei Respondern (n=51; p


Discussion. In the surveys part of this study, children and adults as well<br />

stated they had an enormous interest in finding further information on<br />

the disease they were confronted with. Furthermore, data from various<br />

other studies of the past indicates the existence of two facts about patient<br />

orientated health education to keep in mind: First of all, the internet<br />

as a source of growing importance as provider of health-related information.<br />

Second, the difficulties of lay people, especially children, to<br />

comprehend texts including high quality medical information. “KONI”<br />

and its design can be an online-presence solving the difficulties resulting<br />

from these two facts.<br />

Conclusion. For the benefit of children of the enormous potential of the<br />

internet as a source of information it is of tremendous importance to<br />

enable them to understand the content. Therefore, it is very important<br />

to design web pages eligible for youth. KONI can be a website meeting<br />

this expectation.<br />

0302<br />

Durable complete remissions in a pivotal phase 2 study of SGN-<br />

35 (brentuximab vedotin) in patients with relapsed or refractory<br />

Hodgkin lymphoma (HL)<br />

*A . Younes1 , A .K . Gopal2 , S .E . Smith3 , S .M . Ansell4 , J .D . Rosenblatt5 , K .J . Savage6<br />

, J .M . Connors6 , A . Engert7 , E .K . Larsen8 , D .A . Kennedy8 , E .L . Sievers8 ,<br />

R . Chen9 1 2 University of Texas, MD Anderson <strong>Cancer</strong> Center, Houston, USA, University<br />

of Washington, <strong>Cancer</strong> Research Center, Seattle, USA, 3Loyola University,<br />

Medical Center, Maywood, USA, 4Mayo Clinic, Rochester, USA, 5University, Miami, USA, 6BC <strong>Cancer</strong> Agency, Center for Lymphoid <strong>Cancer</strong>, Vancouver,<br />

Kanada, 7University Hospital, Cologne, Deutschland, 8Seattle Genetics, Inc .,<br />

Bothell, USA, 9City of Hope National Medical Center, Duarte, USA<br />

Introduction. CD30 expression by Reed-Sternberg cells is a defining feature<br />

of HL. SGN-35 comprises an anti-CD30 antibody conjugated by a<br />

plasma-stable linker to the potent antimicrotubule agent, monomethyl<br />

auristatin E (MMAE). SGN-35 selectively induces apoptotic death of<br />

CD30+ cells by binding, internalizing, and releasing MMAE.<br />

Methods. A pivotal, phase 2, single-arm, multicenter study evaluated<br />

the efficacy and safety of SGN-35 in patients (pts) with relapsed<br />

or refractory HL after autologous stem cell transplant (auto-SCT). Pts<br />

received SGN-35, 1.8 mg/kg q3 weeks (wks) as a 30-min. outpatient IV<br />

infusion for up to 16 cycles. The primary endpoint was the objective response<br />

rate (ORR) per an independent review facility (IRF) according<br />

to Cheson 2007.<br />

Results. 102 pts were enrolled; 53% female, median age was 31 yrs (range<br />

15–77). Pts had received a median of 3.5 (range 1–13) prior systemic therapies<br />

excluding auto-SCT. 71% of pts had primary refractory disease and<br />

42% had not responded to their most recent prior therapy. ORR per IRF<br />

was 75% (76 of 102 pts) with complete remissions (CRs) in 34% of pts<br />

(n=35). At the time of database lock (August 2010), median duration of<br />

follow up from first dose was approx. 9 months (for responders). Median<br />

duration of response for pts with CR per IRF has not yet been reached<br />

(range 0.3+ to 61.4+ wks); follow up continues and 6+ months of additional<br />

data will be available for presentation. Treatment-related AEs of any<br />

grade in ≥15% pts were peripheral sensory neuropathy, nausea, fatigue,<br />

neutropenia, and diarrhea. AEs ≥ grade 3 in ≥5% of pts were neutropenia,<br />

peripheral sensory neuropathy, thrombocytopenia, and anemia.<br />

Conclusions. With manageable AEs, single-agent SGN-35 induced objective<br />

responses in 75% of pts with relapsed or refractory HL. In this<br />

heavily pretreated population, 35 of 102 pts (34%) achieved a durable CR,<br />

with more than 65% of pts remaining in CR.<br />

0312<br />

Molecular monitoring, response and adherence to treatment<br />

in outpatients with chronic myeloid leukemia in chronic phase<br />

(CML-CP) treated with imatinib: 42-month follow-up results of a<br />

non-interventional study<br />

*H . Tesch1 , M . Welslau2 , C . Spohn3 , K . Blumenstengel4 , U . von Verschuer5 1Onkologische Gemeinschaftspraxis am Bethanien Krankenhaus, Frankfurt/M,<br />

Deutschland, 2Onkologische/Diabetologische Gemeinschaftspraxis<br />

Klausmann/Welslau, Aschaffenburg, Deutschland, 3Onkologische Gemeinschaftspraxis, Halle, Deutschland, 4Onkologische Gemeinschaftspraxis,<br />

Eisenach, Deutschland, 5Onkologische Gemeinschaftspraxis, Essen,<br />

Deutschland<br />

The availability of imatinib has changed the treatment paradigm in<br />

CML. Long-term benefits from imatinib in terms of overall survival,<br />

increasing response and decreasing disease progression have been confirmed<br />

by data from the 7-year update of the phase III IRIS (International<br />

Randomized Study of Interferon vs STI571). However, good patient<br />

adherence is mandatory to achieve maximal treatment benefit and to<br />

avoid imatinib resistance. Estimation of BCR-ABL transcript levels by<br />

quantitative polymerase chain reaction (qPCR) is the method of choice<br />

for monitoring therapeutic efficacy and prognosis. The aim of this<br />

non-interventional study was to evaluate molecular response of patients<br />

with CML-CP by qPCR with respect to adherence during treatment<br />

with imatinib. A total of 514 outpatients from 56 centers, mainly hematology/oncology<br />

practices and outpatient clinics were included. Patients<br />

received imatinib according to the prescription information and physician‘s<br />

decision. 4.1% of the patients belonged to the high risk, 42.7% to<br />

the intermediate risk and 41.8% to the low risk group (Hasford prognostic<br />

score). Molecular monitoring was performed in 91.3% of the patients.<br />

Major molecular response (BCR-ABL transcript reduction >3 log), was<br />

observed in 34.5% of the patients, no BCR-ABL transcripts at all were<br />

detected in 50.1%, and a minor molecular response


Abstracts<br />

in MDS patients with transfusion-dependent iron overload. The study<br />

is currently being conducted in approx. 100 hematology/oncology institutions<br />

in <strong>German</strong>y. Patients are being treated with deferasirox according<br />

to established guidelines and the prescribing information.<br />

Iron overload is assessed by serum ferritin measurement as well as by<br />

MRI-LIC determination if routinely performed. Moreover, the number<br />

of blood transfusions, co-medication, safety and efficacy of deferasirox<br />

as well as adherence to treatment are assessed. For patients, in whom<br />

no bone marrow biopsy is performed, cytogenetic analysis of CD34+<br />

cells from peripheral blood can be requested at a reference institution.<br />

Patients are evaluated before starting therapy and after about 3, 6, 9,<br />

12, 18, and 24 months of treatment. Between March 2010 and the first<br />

interim analysis with data cut-off in May 2011 82 of 250 planned patients<br />

were prospectively enrolled. Mean patient age was 73.9±10.0 years. Median<br />

serum ferritin levels before treatment were 1751±1483 ng/ml. Most<br />

patients were classified as IPSS low (15%) or intermediate 1 (29%). Median<br />

deferasirox dose was 135±590 mg/day. Further data from the first<br />

interim analysis will be presented. These data will reflect medical care<br />

of MDS patients in <strong>German</strong>y with respect to the monitoring of iron<br />

chelation therapy and may provide evidence for a potential role of LIC<br />

determination by MRI.<br />

0334<br />

Physical performance status as independent predictor for cancer-related<br />

fatigue and physical functioning in allogeneic stem<br />

cell-transplanted patients<br />

*D . Vandenbergh1 , M . Bohus2 , P . Dreger3 , R . Schwerdtfeger4 , D . Jäger5 ,<br />

C . Ulrich1 , N . Rea1 , J . Wiskemann5,1 1National Center for Tumor Diseases (NCT) and <strong>German</strong> <strong>Cancer</strong> Research<br />

Center (DKFZ), Heidelberg, Preventive Oncology, Heidelberg, Deutschland,<br />

2 3 Central Institute of Mental Health, Mannheim, Deutschland, University<br />

Clinic Heidelberg, Department of Hematology, Oncology, and Rheumatology,<br />

Heidelberg, Deutschland, 4<strong>German</strong> Clinic for Diagnostic, BMT Unit,<br />

Wiesbaden, Deutschland, 5National Center for Tumor Diseases (NCT) and<br />

University Clinic Heidelberg, Medical Oncology, Heidelberg, Deutschland<br />

Introduction. Allogeneic hematopoietic stem cell transplantation (allo-<br />

HSCT) is a medical treatment with many and severe side effects. Nevertheless,<br />

for many patients with hematologic malignancies it is the last<br />

and only chance for cure. Due to the malignancy itself and prior treatment<br />

many patients have already impairments in physical functioning<br />

when the transplantation process starts [Morishita et al. 2011 (1)]. Moreover<br />

patients suffer from <strong>Cancer</strong>-Related Fatigue (CRF) and an even<br />

further reduced physical functioning after being transplanted [Hacker<br />

et al. 2006(2)]. We hypothesized that reduced physical performance before<br />

allo-HSCT is an independent predictor for patients’ physical functioning<br />

(PF) and their CRF status 6–8 weeks after transplantation.<br />

Methods. We evaluated the physical performance status of n=60 patients.<br />

We used the 6 min walk distance (6 MWD) as a marker for the<br />

patients’ cardiovascular fitness. Arm strength (elbow flexors and extensors,<br />

shoulder abductors) and leg strength (hip abductors and flexors,<br />

knee flexors and extensors) were measured using a Hand-Held-Dynamometer<br />

and were jointly used to calculate a general Force Index (FI).<br />

CRF and physical functioning were evaluated using subscales of the<br />

EORTC-QLQ-C30 quality of life questionnaire. For regression analyses<br />

we defined 6 MWT and FI as independent variables and CRF and PF as<br />

dependent variables. p-values


1 . Al-Majid S, Gray D (2009) A biobehavioral model for the study of exercise<br />

interventions in cancer-related fatigue . Biol Res Nurs 10:381–91<br />

2 . Wiskemann J et al (2011) Effects of a partly self-administered exercise<br />

program before, during and after allogeneic stem cell transplantation . Blood<br />

117:2604–13<br />

0417<br />

High serum-free light chain levels correlate with the poor prognostic<br />

cytogenetic aberration del(17)(p13) in multiple myeloma<br />

patients<br />

*S . Janjetovic1 , E .M . Murga Penas1 , P . Behrmann1 , C . Bokemeyer1 , G . Schilling1<br />

1Universitätsklinikum Eppendorf, Hämatologie-Onkologie, Hamburg,<br />

Deutschland<br />

Multiple myeloma (MM) is a monoclonal B-cell malignancy characterized<br />

by terminally differentiated plasma cells and monoclonal<br />

immunoglobulin secretion in the majority of cases. Cytogenetics is<br />

an important tool to estimate prognosis in this disease. Recently developed<br />

serum-free light chain (SFLC) assay has proved invaluable in<br />

case of light-chain-secreting MM and in a proportion of patients with<br />

non-secretory disease. It has been previously demonstrated that high<br />

serum-free light chain levels define an aggressive MM subtype with<br />

poor prognosis and are associated with higher levels of LDH and β2 microglobulin,<br />

as well as higher plasma cell bone marrow infiltration (van<br />

Rhee et al. 2007).<br />

In order to investigate whether cytogenetic changes correlate with SFLC<br />

levels in patients with newly diagnosed MM, we compared the SFLC<br />

levels of 35 patients with their cytogenetic findings done by fluorescence<br />

in situ hybridization (FISH).<br />

The cut off value for “high” SFLC levels was fixed at 75 mg/dL, as previously<br />

described (van Rhee et al. 2007). We identified a SFLC baseline<br />

level higher than 75 mg/dL in 12 out of 35 patients (34%), with the highest<br />

level being 2741,7 mg/dL. The remaining 23 patients showed SFLC levels<br />

between 60 and 0.1 mg/dl and, therefore, constituted our control group<br />

with low SFLC.<br />

The most common cytogenetic aberration in both groups was 13q14 deletion,<br />

found in 17 out of 35 analyzed patients (49%). Six deletions were<br />

found in group with high SFLC (50%) and 11 deletions in lower SFLC<br />

group (48%). Interestingly, we detected deletion 17p13 (TP53) in 2 patients<br />

both of them showing SFLC level higher than 75 mg/dL (2741.7<br />

and 402.2 mg/dL respectively), but none in patients in “low level” group.<br />

TP53 deletion is known to be an adverse prognostic factor in MM associated<br />

with a poor prognosis and refractoriness to conventional<br />

chemotherapy, allogenic stem cell transplantation, and, so called, new<br />

substances.<br />

In this study we found that only patients with SFLC levels higher than<br />

75 mg/dL exhibit the negative prognostic deletion of 17p13, whereas the<br />

neutral deletion 13q14 was detected in both groups with the same frequency.<br />

Our results point to a correlation between the negative prognostic deletion<br />

of the tumour suppressor gene TP53 and high SFLC levels. Further<br />

investigations on larger patient cohorts are needed to confirm our interesting<br />

findings.<br />

0476<br />

Survival of Non-Hodgkin’s lymphoma patients in <strong>German</strong>y<br />

D . Pulte1,2 , *L . Jansen1 , A . Gondos1 , B . Holleczek3 , A . Katalinic4 , H . Brenner1,5 1Deutsches Krebsforschungszentrum (dkfz), Klinische Epidemiologie und<br />

Alternsforschung, Heidelberg, Deutschland, 2Thomas Jefferson University,<br />

Division of Hematology, Philadelphia, Deutschland, 3Krebsregister Saarland, Saarbrücken, Deutschland, 4Krebsregister Schleswig-Holstein,<br />

Lübeck, Deutschland, 5GEKID <strong>Cancer</strong> Survival Working Group, Deutschland<br />

Background. Non-Hodgkin’s lymphoma (NHL) is the most common hematologic<br />

cancer in adults. Recent advances in treatment of NHL have<br />

led to improved survival both in clinical trials and on the population<br />

level. Previously, in <strong>German</strong>y data on population-level changes in survival<br />

was restricted to data from the Saarland cancer registry. Our study is<br />

based on survival data provided by 11 population-based <strong>German</strong> cancer<br />

registries covering 33 million people (40% of the population). This data<br />

set allowed a detailed analysis of survival of <strong>German</strong> NHL patients by<br />

major age groups and sex.<br />

Methods. Patients diagnosed with NHL (ICD-10: C82–C85) in 1997–<br />

2006 were included in the analysis. Period analysis was used to calculate<br />

5-year relative survival estimates overall and by sex and age at diagnosis<br />

(15–49, 50–54, 55–59, 60–64, 65–69, 70–74, 75+ years) for the time period<br />

2002–2006. Trends in relative survival between 2002 and 2006 were<br />

estimated by model-based period analysis. Relative survival estimates<br />

for <strong>German</strong>y and the United States (US) were compared using the Surveillance,<br />

Epidemiology, and End Results (SEER13) database.<br />

Results. Overall age-standardized 5-year relative survival for NHL patients<br />

in <strong>German</strong>y in 2002–2006 was 62.8%. Survival decreased strongly<br />

with age from 81.7% at age 15–49 to 46.5% at age 75+. Women had a better<br />

prognosis overall and in each age group. Survival significantly increased<br />

between 2002 and 2006 by 5.3 percent units (% units). This increase<br />

can mainly be attributed to improvements in survival for patients aged<br />

60–74 years. No increase was observed for the age groups 15–49 and 75+.<br />

In the US, overall age-standardized 5-year relative survival was slightly<br />

higher (65.1%) as a result of better survival of patients aged 65+ in the US<br />

(+4.4 to +6.1% units). Patients aged 50–64 had comparable prognosis in<br />

the US and in <strong>German</strong>y, whereas patients aged 15–49 had a 6.6 % units<br />

higher 5-year relative survival in <strong>German</strong>y.<br />

Conclusion. Our results show that age-standardized 5-year relative survival<br />

of NHL patients in <strong>German</strong>y and in the US is comparable. However,<br />

patients aged 65+ had lower survival rates in <strong>German</strong>y than in the<br />

US. While the difference for patients aged 65–74 may decrease over time<br />

as the prognosis of patients in this age group improved strongly between<br />

2002 and 2006, no improvement was observed for patients aged<br />

75+. These results suggest that greater focus on treatment of NHL in the<br />

oldest patient group in <strong>German</strong>y may be needed.<br />

Mammakarzinom/gynäkologische Tumoren<br />

0015<br />

Breast self-examination (BSE) in post treatment surveillance<br />

after breast cancer: a prospective study<br />

*J . Johannsen-Wrana1 , H .J . Hamm1,2 1 2 Allg . med . Praxis Bachmann, Sylt OT Westerland, Deutschland, UK-SH,<br />

Campus Kiel, medizinische Fakultät, Kiel, Deutschland<br />

Introduction. Breast cancer is the most frequent tumor among women<br />

in <strong>German</strong>y, accounting for about 28% of all female cancer cases. Breast<br />

self-examination (BSE) is an important part of breast cancer detection.<br />

Many patients after surgery are reluctant to practice BSE because of<br />

personal, cognitive, emotional and health-care provider factors. This<br />

prospective consecutive two-arm study was conducted to investigate<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

61


Abstracts<br />

the performance of BSE in rehab patients with or without a targeted<br />

education program.<br />

Methods. 1521 patients between the age of 30 and 75 were included in<br />

the study. From September 2009 to September 2010, they were asked to<br />

fill out a standardized self-report questionnaire about their use of BSE<br />

before diagnosis, at the beginning of rehabilitation, after rehabilitation<br />

and six month after rehabilitation. The last questionnaire asked for any<br />

profit of the BSE-training and if they practice BSE or not. Patients were<br />

divided into three groups. Group I (n=487) performed a classical S3-guideline-breast<br />

cancer-rehab, group II (n=534) was additionally educated<br />

in BSE in theory and was offered the possibility to practice BSE with<br />

educated physiotherapists. Group III (n=500) received the normal rehab<br />

program and served as a wash-out-group between study groups.<br />

Results. At the end of rehab in group I 61.3% reported to perform BSE regularly,<br />

24.7% sometimes and 13.9% never. In group II 69.9% reported to<br />

perform BSE regularly, 21.5% sometimes and 8.6% never. A questionnaire<br />

six month after rehab was answered by 789 patients (77.30% response<br />

rate, 789/1021). Group I reported to perform BSE 55.8% regularly, 29.7%<br />

sometimes and 14.5% never. Group II reported to perform BSE 53.8%<br />

regularly, 35.5% sometimes and 10.8% never. 84.4% of group II reported<br />

a profit regarding BSE while 41.1% did so in group I.<br />

Conclusion. In this study, patients after breast cancer therapy reported a<br />

significant profit after an education-program for BSE during rehabilitation<br />

in comparison to a control group undergoing a standard rehab program.<br />

However, the program promoted the performance of BSE only to<br />

a small extent. We speculate that the questionnaire itself may have had<br />

a positive impact on BSE performance. Further research is needed to<br />

evaluate the quality of BSE after our program and the long-term adherence<br />

of the women to the procedure. Additionally, it would be of interest<br />

to show if such a program would have an impact on morbidity and/or<br />

mortality of breast cancer patients.<br />

0024<br />

The ProBone study: influence of zoledronic acid on bone mineral<br />

density in premenopausal women with breast cancer and neoadjuvant<br />

or adjuvant chemotherapy and/or endocrine treatment<br />

*P . Hadji1 , A . Kauka1 , T . Bauer1 , M . Kalder1 , U .-S . Albert1 , K . Birkholz2 , M . Baier2 ,<br />

M . Muth2 , M . Ziller1 1Philipps-University of Marburg, Department of Gynecology, Endocrinology<br />

and Oncology, Marburg, Deutschland, 2Novartis Pharma GmbH, BU<br />

Oncology, Nürnberg, Deutschland<br />

Background. Based on baseline bone mineral density (BMD), adjuvant<br />

chemotherapy (CT) or endocrine therapy (ET) for early breast cancer<br />

(BC) patients (pts) can lead to substantially increased osteoporotic<br />

fracture risk. After 2 years of CT and/or ET, a significant decrease of<br />

BMD has been reported. In recent studies (e. g. ABCSG-12, Z-FAST,<br />

ZO-FAST), the treatment of pts with zoledronic acid (ZOL) led to an<br />

increase in BMD in premenopausal and postmenopausal pts with BC.<br />

In addition, a significant increase in disease-free survival (DFS) with<br />

ZOL versus no ZOL was observed in most of these studies.<br />

Methods. The aim of 2 single-center, placebo-controlled, randomized<br />

studies – Probone I and II – was to investigate the effect of adjuvant<br />

treatment with ZOL on BMD in premenopausal women with early BC<br />

treated with CT and/or ET. Pts with hormone-receptor-negative (HR-)<br />

BC (ProBone I) were treated with (neo)adjuvant CT; pts with hormonereceptor-positive<br />

(HR+) BC (ProBone II) were treated with adjuvant ET<br />

alone or in combination with (neo) adjuvant CT. Pts received ZOL 4 mg<br />

or placebo IV every 3 months for 24 months. The primary objective was<br />

the change in BMD at the lumbar spine between baseline and month<br />

24 (measured by DXA). Secondary objectives included metastasis-free<br />

survival; BMD at total hip; QUS at os calcis and phalanges; markers of<br />

bone turnover (e.g. CTX and P1NP); endocrine hormones (e.g. FSH, estradiol,<br />

testosterone, SHBG, PTH, vitamin D, AMH, inhibin A/B, etc.);<br />

pathologic fractures; safety and tolerability.<br />

62 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Results. 71 HR+ and 11 HR-BC pts have been enrolled into the studies at<br />

1 site. The last patient will have been treated for 24 months by the end of<br />

June 2011. The results of the primary and secondary endpoints will be<br />

presented at the meeting.<br />

Conclusion. The results of the ProBONE studies will provide information<br />

regarding the efficacy of ZOL in the prevention of bone loss in premenopausal<br />

women under CT or ET. Furthermore, the analysis of bone<br />

markers will provide insights in bone metabolism and the evaluation<br />

of several endocrine hormones could contribute important findings on<br />

the relationship between the hormone status and the course of bone<br />

markers with or without ZOL. Therefore, important findings could be<br />

obtained for the growing number of young BC survivors who will enter<br />

menopause early and experience a prolonged period of estrogen deficiency<br />

and an increased long-term fracture risk due to cancer treatment.<br />

0026<br />

Reduced HFSR incidence observed in a randomized phase II study<br />

in advanced breast cancer patients treated with sorafenib and<br />

paclitaxel by initial ramp-up dose escalation (PASO)<br />

*F . Overkamp1 , C .-C . Steffens2 , W . Abenhardt3 , C . Lerchenmüller4 , A . Nusch5 ,<br />

T . Göhler6 , M . Groschek7 , S . Hegewisch-Becker8 , N . Marschner9 , S .B . Rösel10 ,<br />

C . Salat11 , T . Decker12 1 2 Oncologianova GmbH, Recklinghausen, Deutschland, Schwerpunktpraxis<br />

Hämatologie/Onkologie, Stade, Deutschland, 3Münchner Onkologische<br />

Praxis, München, Deutschland, 4Hämatologisch-Onkologische Gemeinschaftspraxis,<br />

Münster, Deutschland, 5Praxis für Hämatologie und internistische<br />

Onkologie, Velbert, Deutschland, 6Onkologische Gemeinschaftspraxis,<br />

Dresden, Deutschland, 7Onkologische Gemeinschaftspraxis, Würselen,<br />

Deutschland, 8Onkologische Schwerpunktpraxis, Hamburg, Deutschland,<br />

9Praxis für interdisziplinäre Onkologie & Hämatologie, Freiburg i . Br .,<br />

Deutschland, 10Onkodok, Gütersloh, Deutschland, 11Gemeinschaftspraxis f .<br />

Innere Medizin, Hämatologie und Int . Onkologie, München, Deutschland,<br />

12Onkologie Ravensburg, Ravensburg, Deutschland<br />

Introduction. Breast cancer is the most common malignancy among<br />

women in <strong>German</strong>y and despite some therapeutic progress still challenging<br />

in the metastatic stage. The importance of the VEGF pathway<br />

was recently discovered and clinically verified in terms of prognosis.<br />

Sorafenib (Sor) is a multi-targeted inhibitor for several tyrosine and serine/threonine<br />

protein kinases including VEGF, PDGF, cKIT and Raf.<br />

Sor showed a considerable efficacy in three phase II trials in advanced<br />

breast cancer (aBC) in combination with paclitaxel (pac), capecitabine<br />

(cap) and gemcitabine (gem). The side effect profile seems manageable<br />

and clinically safe but an improvement in terms of hand foot skin reaction<br />

(HFSR) remains desirable. A phase II trial was planned by the<br />

AIO study group sponsored by GMIHO to investigate a combination<br />

of sor with pac vs. pac monotherapy including an initial ramp-up dose<br />

escalation in patients with aBC.<br />

Patients and methods. The study will recruit 140 pts with aBC due for<br />

second or third line cytostatic treatment in 30 AIO centers. The pts<br />

are randomized to weekly 80 mg/m2 pac in combination with 400 mg<br />

sor bid in treatment cycles of 4 weeks or applied as monotherapy until<br />

progression or intolerable side effects. Dose modifications or temporary<br />

discontinuation are carried out in case of severe side effects for sor<br />

and pac according to protocol. A ramp-up dose escalation scheme is<br />

implemented starting with 400 mg/day for the first, 600 mg/day for the<br />

second cycle and 800 mg/day as a continuous treatment starting with<br />

the third cycle.<br />

Results. The first safety analysis after 20 pts treated for at least two cycles<br />

in June 2011 showed a side effect profile comparable with known data<br />

from pac and sor. The overall incidence of HFSR in the sor+pac group<br />

was found as previously published with 5/10 pts showing a HFSR of any<br />

CTCAE grade but the incidence of grade 3 HFSR was surprisingly low<br />

with only 2/10 pts (20%).


Conclusions. The incidence of grade 3 HFSR seems to be remarkably low<br />

despite the early stage of our trial comparing our results with data for<br />

sor + cap (Baselga et al., ESMO 2009; 89% all grade and 45% grade 3), for<br />

sor + pac (Gradishar et al., SABCS 2009; 55% all grade and 30% grade 3)<br />

and for sor + gem (Hurdis et al., ASCO 2011, 39% grade 3). The used<br />

ramp-up dose escalation for sor seems promising. The study will be<br />

continued as planned to confirm the reduction in HFSR using the new<br />

dose scheme and determine the efficacy for the sor + pac combination<br />

in pts with aBC.<br />

0039<br />

Fibroblast growth factor receptor 4 gene (FGFR4) 388Arg allele<br />

predicts prolonged survival and platinum sensitivity in advanced<br />

ovarian cancer<br />

*F . Marmé1 , T . Hielscher2 , S . Hug1 , S . Bondong3 , R . Zeilinger4 , D . Castillo-<br />

Tong4 , J . Sehouli5 , I . Braicu5 , I . Vergote6 , I . Cadron6 , S . Mahner7 , C . Sohn1 ,<br />

A . Schneeweiss1 , P . Altevogt3 1Universitätsklinikum Heidelberg, Frauenklinik, Heidelberg, Deutschland,<br />

2Deutsches Krebsforschungszentrum (DKFZ), Biostatistik, Heidelberg,<br />

Deutschland, 3Deutsches Krebsforschungszentrum (DKFZ), Translationale<br />

Immunologie, Heidelberg, Deutschland, 4General Hospital of Vienna,<br />

Ludwig Boltzmann Cluster Translational Oncology, Wien, Österreich, 5Uni versitätsmedizin <strong>Berlin</strong>, Charité Campus Virchow Klinikum, Department<br />

of Gynecology, European Competence Center for Ovarian <strong>Cancer</strong>, <strong>Berlin</strong>,<br />

Deutschland, 6Universitaire Ziekenhuizen Leuven, Katholieke Universiteit<br />

Leuven, Division of Gynaecological Oncology, Department of Obstetrics<br />

and Gynaecology, Belgium, Belgien, 7Universitätsklinik Hamburg Eppendorf,<br />

Gynäkologie und Geburtshilfe, Hamburg, Deutschland<br />

Background. FGFR4 has been shown to play an important role in the<br />

etiology and progression of solid tumors. A single nucleotide polymorphism<br />

(SNP) within the FGFR4 gene has previously been linked<br />

to prognosis and response to chemotherapy in breast cancer and other<br />

malignancies. This study evaluates the relevance of this SNP in advanced<br />

ovarian cancer.<br />

Patients and methods. FGFR4-genotype was analyzed in 236 patients<br />

recruited as part of the OVCAD project. Genotyping was performed on<br />

germ-line DNA using a TaqMan based genotyping assay. Results were<br />

correlated with clinicopathological variables and survival.<br />

Results. The FGFR4 388Arg genotype was significantly associated with<br />

prolonged progression-free and overall survival (univariate: HR 0.68,<br />

p=0.017; HR 0.49, p=0.005; multivariate: HR 0.69, p=0.025; HR 0.49,<br />

p=0.006) though the positive prognostic value was restricted to patients<br />

without post-operative residual tumor. Indeed, there was a significant<br />

interaction between FGFR4 genotype and tumor rest for overall survival.<br />

Furthermore, the FGFR4 388Arg genotype significantly correlated<br />

with platinum sensitivity in the same subgroup (multivariate OR 3.81,<br />

p=0.004).<br />

Conclusion. FGFR4 Arg388Gly genotype is an independent and strong<br />

context specific prognostic factor in patients with advanced ovarian<br />

cancer and could be used to predict platinum-sensitivity.<br />

0045<br />

An epidemiological prospective cohort study with Fulvestrant<br />

and Exemestane in postmenopausal patients with advanced<br />

HR+ breast cancer under real-life conditions in <strong>German</strong>y: The<br />

ACT-FASTER study<br />

*H . Tesch1 , B . Bruno2 , W . Greiner3 , H . Ostermann4 , K . Possinger5 , S . Zaun6 ,<br />

N . Maass2 1 2 Onkologische Gemeinschaftspraxis, Frankfurt, Deutschland, Universitäts-Frauenklinik,<br />

Aachen, Deutschland, 3Universität Bielefeld, Fakultät für<br />

Gesundheitswissenschaften, Bielefeld, Deutschland, 4Klinikum Großhadern<br />

der Ludwig-Maximilians-Universität, Medizinische Klinik und Poliklinik III,<br />

München, Deutschland, 5Charité, Medizinische Klinik mit Schwerpunkt<br />

Onkologie und Hämatologie, <strong>Berlin</strong>, Deutschland, 6AstraZeneca, Medizin,<br />

Wedel, Deutschland<br />

Introduction. With the introduction of aromatase inhibitors followed<br />

by fulvestrant as endocrine treatments for ER+ postmenopausal (PMP)<br />

women with advanced breast cancer (ABC), sequential endocrine treatment<br />

has become the clinical standard of care in this setting (unless<br />

disease is acutely life threatening; see AGO guidelines). Fulvestrant<br />

500 mg (2×250 mg i.m. days 0, 14, 28, then monthly) was approved in<br />

March 2010 for ER+ ABC in PMP patients, and both fulvestrant and<br />

exemestane are approved post antiestrogen treatment in this setting.<br />

ACT-FASTER aims to generate data on the use of fulvestrant 500 mg<br />

and exemestane under real-life conditions with a focus on the use of<br />

fulvestrant in different treatment lines.<br />

Methods. ACT-FASTER is a prospective non-interventional cohort study<br />

sponsored by AstraZeneca <strong>German</strong>y (ClinTrials ID: NCT01171417).<br />

It is planned to enrole 660 PMP women with ER+ ABC at approx.<br />

40 breast clinics and 100 office-based gynaecologists/oncologists. Data<br />

on clinical characteristics, clinical outcome, epidemiological and pharmacoeconomic<br />

parameters of treatment with fulvestrant 500 mg or exemestane<br />

under real-life conditions in <strong>German</strong>y will be collected. The<br />

two co-primary objectives are, firstly, for patients receiving fulvestrant,<br />

to compare the time to progression (TTP) as a function of the line of<br />

treatment (i.e. 1st- vs. 2nd- vs. 3rd-line), and secondly, for all patients, to<br />

collect and explore real-life data on the epidemiology and management<br />

of patients receiving fulvestrant or exemestane for ER+ ABC, including<br />

tumour characteristics, data on co-morbidities and treatments received.<br />

Secondary endpoints are effectiveness endpoints, pharmacoeconomic<br />

data (resource use, etc.) and data on health related quality of life.<br />

Results. Recruitment started in August 2010. By July 2011, approx.<br />

230 patients have been recruited. Study rationale, design and an update<br />

on the recruitment will be presented.<br />

Conclusion. ACT-FASTER aims to generate real-life information on the<br />

endocrine treatment of PMP patients with ER+ ABC with a focus on the<br />

effectiveness of fulvestrant 500 mg in different treatment lines. Patient<br />

management in clinical practice, quality of life and pharmacoeconomics<br />

will also be explored. As such, ACT-FASTER constitutes an important<br />

project of outcomes research in this patient setting.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

63


Abstracts<br />

0046<br />

Final results from PACT (Patient’s Anastrozole Compliance to<br />

Therapy Programme), a non-interventional study evaluating the<br />

influence of a standardized information service on compliance in<br />

postmenopausal women with early breast cancer<br />

*M . Blettner1 , P . Hadji2 , N . Harbeck3 , C . Jackisch4 , H .-J . Lück5 , S . Zaun6 ,<br />

C . Windemuth-Kieselbach7 , R . Haidinger8 , A . Rexrodt von Fircks9 , R . Kreienberg10<br />

1Gutenberg-Universität Mainz, Institut für medizinische Biometrie, Epidemiologie<br />

und Informatik, Mainz, Deutschland, 2Klinikum der Philipps-<br />

Universität, Klinik für Gynäkologie, gyn . Endokrinologie und Onkologie,<br />

Marburg, Deutschland, 3Klinik und Poliklinik für Frauenheilkunde und<br />

Geburtshilfe, Brustzentrum Köln/Frechen, Köln, Deutschland, 4Städtisches Klinikum, Frauenklinik, Offenbach, Deutschland, 5Gyn . Onkologische Praxis,<br />

Hannover, Deutschland, 6AstraZeneca, Medizin, Wedel, Deutschland, 7Alce dis GmbH, Giessen, Deutschland, 8Brustkrebs Deutschland e .V ., München,<br />

Deutschland, 9Selbstständig, Autorin, Ratingen, Deutschland, 10Frauenuni versitätsklinik, Ulm, Deutschland<br />

Introduction. In clinical trials, compliance to adjuvant endocrine therapy<br />

for hormone-receptor positive (HR+) early breast cancer (EBC) is<br />

generally high (>80%), yet, retrospective data from non-study settings<br />

shows that compliance may drop below 70% after one year and to only<br />

50% by year 4. PACT aimed to generate data from routine clinical practice<br />

on treatment compliance in postmenopausal women taking an adjuvant<br />

aromatase inhibitor and to increase treatment adherence via a<br />

standardized information service (educational arm).<br />

Methods. PACT was a prospective, randomised, two-arm parallel-group<br />

study in <strong>German</strong>y (sponsor AstraZeneca; NCT00555867). Postmenopausal<br />

women on anastrozole for HR+ EBC were randomized to routine<br />

clinical care alone or to receive additional standardized information<br />

(educational arm) over the first year of adjuvant therapy. Primary endpoints<br />

were compliance and persistence rates in the educational versus<br />

routine arm after 12 months. Secondary endpoints included longer follow-up,<br />

reasons for non-compliance, influence of baseline characteristics,<br />

and clinical outcome parameters. Compliance was evaluated via<br />

patient questionnaires, prescription data and physician recall. Per protocol<br />

compliance was analysed only for patients with full baseline documentation<br />

both by patients and physicians. Persistence was defined as<br />

the duration of time from initiation to discontinuation of therapy and<br />

measured by prescription data. Regression analysis was performed to<br />

investigate variables influencing compliance or persistence rate.<br />

Results. 4923 patients were enrolled at 109 breast centres and 1361 specialist<br />

practices. 4397 patients were evaluable for baseline characteristics,<br />

and 2707 patients for the primary endpoint. No difference in compliance<br />

was shown between the standard (88.2%) and the educational arm<br />

(88.3%) at 12 months (p=0.92, Fisher’s exact test). Persistence rates were<br />

40.3% for the standard and 43.0% for the educational arm, respectively<br />

(p=0.17, Fisher’s exact test). At 24 months, data from 1539 patients was<br />

available for compliance per protocol. Compliance rates were 88.7%<br />

(educational arm) and 87% (standard arm; p=0.29), persistence 41.1%<br />

and 42.1% (p=0.68). Variables influencing compliance were regular<br />

attendance to follow-up visits, participation in a cancer rehabilitation<br />

program, number of co-morbidities and current employment status.<br />

Persistence was influenced by factors such as tumour stage, joint pain<br />

and cancer rehab program participation.<br />

Conclusion. The addition of standardized information materials to standard<br />

clinical care did not increase the compliance or persistence rates.<br />

This result led to closing the study after the 24 months follow-up (planned<br />

60 months). However, PACT represents the largest prospective study<br />

to evaluate compliance and persistence to adjuvant endocrine therapy<br />

in postmenopausal patients with HR+ EBC and provides valuable<br />

data on clinical practice and treatment adherence in <strong>German</strong>y.<br />

64 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0060<br />

COMPliance and Arthralgias in Clinical Therapy (COMPACT):<br />

Assessment of the incidence of arthralgia, therapy costs and<br />

compliance within the first year of adjuvant anastrozole therapy<br />

*H .-J . Hindenburg1 , M . Blettner2 , W .W . Bolten3 , P . Hadji4 , N . Harbeck5 ,<br />

C . Jackisch6 , R . Kreienberg7 , W . Rief8 , D . Wallwiener9 , S . Zaun10 , P . Klein11 ,<br />

K . König12 1 2 BNGO e .V ., <strong>Berlin</strong>, Deutschland, Universität Mainz, Institut für medizinische<br />

Biometrie, Epidemiologie und Informatik, Mainz, Deutschland,<br />

3 4 Klaus-Miehlke-Klinik für Rheumatologie, Wiesbaden, Deutschland, Phillips-Universität<br />

Marburg, Schwerpunkt für Gynäkologische Endokrinologie,<br />

Reproduktionsmedizin und Osteologie, Marburg, Deutschland, 5Unifrauen klinik, Brustzentrum, Köln, Deutschland, 6Klinikum Offenbach, Klinik für Gynäkologie<br />

und Geburtshilfe, Offenbach, Deutschland, 7Universitätsfrauen klinik, Ulm, Deutschland, 8Philipps-Universität, Psychotherapie-Ambulanz,<br />

Marburg, Deutschland, 9Universitätsfrauenklinik, Tübingen, Deutschland,<br />

10 11 AstraZeneca, Medizin, Wedel, Deutschland, d .s .h . statistical services<br />

GmbH, Rohrbach, Deutschland, 12Berufsverband der Frauenärzte e .V .,<br />

Steinbach/Ts, Deutschland<br />

Objective. Aromatase inhibitors (AI) are well established as adjuvant<br />

endocrine treatment for postmenopausal women with hormone receptor-positive<br />

(HR+) early breast cancer (EBC). However, clinical trials<br />

have shown for AI to be significantly more frequently associated with<br />

arthralgia than tamoxifen. As arthralgia may be a determining factor<br />

in influencing compliance to adjuvant endocrine therapy, we designed a<br />

prospective trial to collect real world data on the effects of AI-associated<br />

arthralgia on patient compliance, patient outcomes as well as treatment<br />

costs of arthralgia.<br />

Materials and methods. COMPACT is an open, prospective, non-interventional<br />

study assessing the incidence of arthralgia, therapy costs,<br />

and compliance within the first year of adjuvant anastrozole therapy<br />

in postmenopausal patients with HR+ EBC. The study is sponsored<br />

by AstraZeneca and supported by <strong>German</strong> health insurance funds<br />

(GWQ ServicePlus AG, DAK, TK). Patients on adjuvant anastrozole for<br />

3–6 months were enrolled and stratified by initial adjuvant anastrozole<br />

or switch from tamoxifen. All patients receive regular standardized<br />

information about breast cancer from baseline to week 20 after study<br />

start to support treatment compliance. Data on demographics, arthralgias,<br />

therapy of arthralgia and quality of life are collected at baseline, 3,<br />

6 and 9 months. Primary endpoints are scaled data on arthralgia and<br />

compliance within the first year of anastrozole therapy. Secondary endpoints<br />

include the incidence of arthralgias, therapy costs, reasons for<br />

non-compliance, and influence of arthralgias on clinical outcome. For a<br />

subgroup of patients data on arthralgia therapy and compliance will be<br />

validated with corresponding accounting data of participating health<br />

insurance funds.<br />

Results. From April 2009 to March 2011, 2313 patients were recruited,<br />

2007 receiving upfront anastrozole and 306 patients on switch therapy.<br />

The mean age was 64.5 years, mean BMI 27.7. Only 16.8% of patients<br />

had received HRT prior to their EBC. 41.5% of patients had concomitant<br />

symptoms relating to skeleton or musculature, and 11.9% stated arthralgias<br />

existing prior to anastrozole treatment. 13.1% reported a worsening<br />

of pre-existing arthralgias or new arthralgia after starting anastrozole.<br />

All patients will be followed for arthralgia, treatment thereof, and compliance<br />

to therapy.<br />

Conclusion. COMPACT aims to provide valid data on AI-associated arthralgias,<br />

treatment, therapy compliance and treatment costs. This may<br />

help to better inform patients and health care providers about these clinically<br />

important issues with the aim to improve adherence to anastrozole<br />

treatment, breast cancer outcomes, and therapy costs.


0061<br />

Vandetanib and Pegylated Liposomal Doxorubicin (PLD) in recurrent<br />

ovarian cancer: a phase I trail of the AGO Study Group<br />

*F . Hilpert1 , A . du Bois2 , J . Sehouli3 , P . Wimberger4 , J . Rau5 , C . Kurzeder2 ,<br />

G . Elser6 , S . Zaun7 , P . Harter2 1Universitätsklinikum Schleswig-Holstein Campus Kiel, Klinik für Gynäkologie<br />

und Geburtshilfe, Kiel, Deutschland, 2Kliniken Essen-Mitte, Gynäkologie<br />

und Gynäkologische Onkologie, Essen, Deutschland, 3Charité Campus Virchow,<br />

Klinik für Gynäkologie, <strong>Berlin</strong>, Deutschland, 4Unirversitätsklinikum, Klinik für Frauenheilkunde und Geburtshilfe, Essen, Deutschland, 5Philipps Universität, Koordinierungszentrums für Klinische Studien, Marburg,<br />

Deutschland, 6AGO Studiengruppe, Wiesbaden, Deutschland, 7Astra Zeneca,<br />

Wedel, Deutschland<br />

Background. PLD is a standard treatment in patients with recurrent<br />

platinum-resistant or refractory ovarian cancer. Vandetanib is an oral<br />

once daily inhibitor of VEGFR-, EGFR- and RET-signalling with activity<br />

in combination with chemotherapy in some other solid tumours.<br />

Therefore, we aimed to establish a feasible combination therapy of PLD<br />

and vandetanib.<br />

Methods. Eligible patients were treated with PLD 50 mg/m2 q28 and<br />

vandetanib 100 mg/d po. It was planned to recruit at least 10 patients<br />

evaluable for toxicity over 2 treatment cycles. Primary endpoints were<br />

tolerability and safety; secondary endpoint was efficacy.<br />

Results. Fourteen of 15 registered patients started treatment and were<br />

evaluable for toxicity. Three patients (21%) stopped after first cycle (PD,<br />

withdrawal of consent, nausea/vomiting). The remaining 11 patients<br />

were treated for at least 2 cycles. Dose reductions of PLD and vandetanib<br />

were indicated in 4 (29%) and 5 patients (36%), respectively. The<br />

following G3/4 toxicities occurred per patient: 3 (21%) elevated liver enzymes<br />

G3, 2 (14%) neutropenia G3/4, 5 (36%) PPE G3/4, 2 (14%) mucositis<br />

G3. Tyrosine kinase inhibitor attributed side effects like hypertension or<br />

bowel perforations were not reported. Toxicity led to end of treatment<br />

in 4 patients (29%). Ten patients were evaluable for response: PR 1, SD 4.<br />

The median PFS was 6.7 months and median OS was 11.1 months.<br />

Conclusions. The combination of PLD and vandetanib is feasible, but<br />

shows considerable toxicity. Efficacy has to be proven in subsequent<br />

phase II trials.<br />

This study was sponsored by AstraZeneca GmbH .<br />

0074<br />

Survival of metastatic breast cancer (MBC): Is there a survival<br />

benefit over time?<br />

*M .-P . Ufen1 , B . Rosien1 , T . Hammer1 , U . Schubert1 , E . Malik2 , *C .-H . Köhne1 1Klinikum Oldenburg, Hämatologie Onkologie, Oldenburg, Deutschland,<br />

2Klinikum Oldenburg, Gynäkologie, Oldenburg, Deutschland<br />

Background. Whether survival of patients with MBC is improved over<br />

time remains controversial. Randomised clinical trials demonstrated<br />

if at all a small benefit between different therapies and a meaningful<br />

translation into clinical practice is doubtful.<br />

Methods. Excluding patients with local recurrence only, we analysed<br />

839 patients, treated at our institution from 1985–2009, according to<br />

date of primary diagnosis or date of first metastasis. The influence of<br />

hormonal receptor status (HR+, HR−), metastasis free intervall (MFI)<br />

(60 months) and diagnosis before or after 1996 (introduction<br />

of taxanes and aromatase inhibitors) was examined.<br />

Results. Improvement of survival was observed, when the primary tumor<br />

was diagnosed later (intervals of 1985–1990, 1990–1994, 1995–1999,<br />

2000–2004, 2005–2009; p=0.006) however, no survival effect was observed<br />

according to date of metastasis (p=0.11). Median survival of patients<br />

with HR+ was 32.1 vs. 17.0 months for in HR− (p


Abstracts<br />

0080<br />

Comparison of the HER2, estrogen and progesterone receptor<br />

expression profile of metastases and circulating tumor cells in<br />

metastatic breast cancer patients<br />

*B . Aktas1 , M . Tewes2 , V . Müller3 , S . Kasimir-Bauer1 , T . Fehm4 1Universitätsklinik, Gynäkologie und Geburtshilfe, Essen, Deutschland,<br />

2 3 Universitätsklinik, Innere Tumorklinik, Essen, Deutschland, Universitätsklinik,<br />

Klinik und Poliklinik für Gynäkologie, Hamburg, Deutschland, 4Universi tätsklinik, Gynäkologie und Geburtshilfe, Tübingen, Deutschland<br />

Background. Several studies have indicated that the expression of predictive<br />

markers including HER2, the estrogen (ER) und progesterone<br />

(PR) receptor can change during course of disease. Therefore, reassessment<br />

of the predictive markers at the time of disease progression might<br />

help to optimize treatment decisions. In this context, characterization<br />

of circulating tumor cells (CTCs) could be of relevance in the future,<br />

since metastatic tissue may be difficult to obtain for repeated analysis.<br />

Therefore, the purpose of the present study was to compare the hormone<br />

receptor status as well as HER2 expression profile of metastases with<br />

the expression profile on CTCs.<br />

Materials and methods. A total of 82 patients with metastatic breast cancer<br />

from eight <strong>German</strong> University Breast <strong>Cancer</strong> Centers were enrolled<br />

in this study. Blood was obtained at the time of first diagnosis of metastatic<br />

disease or disease progression. HER2 status of CTCs was assessed<br />

using the FDA-approved CellSearch® assay and the hormonal receptors<br />

were analyzed by immunomagnetic enrichment using the AdnaTest<br />

Breast<strong>Cancer</strong>Select (AdnaGen AG, <strong>German</strong>y) followed by RNA isolation<br />

and subsequent gene expression analysis by reverse transcription<br />

and Multiplex-PCR in separated tumor cells using the AdnaTest Breast<strong>Cancer</strong>Detect.<br />

Expression of the ER and PR receptor was assessed in<br />

an additional RT-PCR. The analysis of PCR products was performed by<br />

capillary electrophoresis on the Agilent Bioanalyzer 2100.<br />

Results. The overall detection rate for CTCs was 27 of 82 (33%) with the<br />

expression rates of 33% for HER2, 10% for ER and 6% for PR, respectively.<br />

Comparisons of expression profiles on CTCs with those on metastases<br />

were only performed in CTC-positive patients. In 15 patients with<br />

ER-positive metastases, only one patient had ER-positive CTCs. 11 patients<br />

with PR-positive metastases expressed PR on CTCs in also only one<br />

case. The rate of breast cancer patients with HER2-positive metastases<br />

and HER2-positive CTCs was 27%. Metastases and CTCs displayed a<br />

concordant ER, PR and HER2 status in 21% (not significant), 42% (not<br />

significant) and 52% (not significant) of cases, respectively.<br />

Conclusion. The concordance between expression profile of CTCs and<br />

corresponding metastatic disease is low. The consequences for palliative<br />

treatment have to be determined by monitoring therapy response based<br />

on each expression profile.<br />

0082<br />

Pertuzumab is superior to Trastuzumab in rescuing the HRGcaused<br />

reversion of Lapatinib’s inhibitory effect on breast cancer<br />

cells<br />

*S . Diermeier-Daucher1 , S . Breindl1 , S . Buchholz1 , O . Ortmann1 , G . Brockhoff1 1Caritas Hospital St . Josef, Department of Gynecology and Obstetrics,<br />

Regensburg, Deutschland<br />

Background. Monoclonal antibodies and small molecule inhibitors<br />

emerged as potent therapeutic agents in the treatment of HER2 overexpressing<br />

breast cancer. However, many patients do not adequately<br />

respond to anti-EGFR/HER2 receptor targeting. In this study we investigated<br />

receptor- and growth-stimulating effects, which potentially<br />

hamper anti-proliferative cell treatment.<br />

Methods. BT474 and SK-BR-3 breast cancer cell lines were treated with<br />

therapeutic monoclonal antibodies Trastuzumab and Pertuzumab and<br />

with tyrosine kinase inhibitor Lapatinib alone and in different combinations.<br />

EGF or HRG were added to reveal potential growth factor-me-<br />

66 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

diated compensatory effects. The treatment-specific activation status of<br />

EGFR and HER2 receptors and intracellular signaling cascades were<br />

correlated to cell cycle kinetics and apoptosis.<br />

Results. The presence of EGF or HRG strongly impaired Lapatinib-caused<br />

growth inhibition. This compensatory effect caused by EGF, however,<br />

was reversed by additional cell treatment with either Trastuzumab<br />

or Pertuzumab. In contrast, the compensatory effect caused by HRG<br />

treatment was only reversed by Pertuzumab, but not by Trastuzumab.<br />

These data suggest that Pertuzumab might be superior to Trastuzumab<br />

in affecting a HRG-caused HER receptor interaction (activation) involved<br />

in compensation of Lapatinib-caused cell cycle exit.<br />

Conclusions. Modular HER/ErbB receptor targeting with Lapatinib,<br />

Trastuzumab and Pertuzumab more efficiently affects receptor function<br />

than single treatment. Growth inhibition by anti-cancer drugs targeted<br />

to HER/ErbB receptors, however, can be significantly undermined<br />

in the presence of EGF and in particular by HRG treatment. This observation<br />

suggests that specific therapeutic growth factor sequestration<br />

might further enhance anti-EGFR/HER2 targeting.<br />

0083<br />

Hyperthermia triggers down-regulation of Estrogen receptor<br />

α isoforms and its co-activators DEAD-box5 and DEAD-box17 in<br />

breast cancer cells<br />

*M . Hirschfeld1 , M . Jäger1 , V . Neumann1 , G . Gitsch1 , E . Stickeler1 1Gynecological Hospital of Freiburg University Medical Center, Molecular<br />

Oncology, Freiburg, Deutschland<br />

Background and aims. Recently, the clinical application of hyperthermal<br />

therapy becomes more and more reintroduced and is used concomitant<br />

to chemotherapy or radiotherapy, that might improves the effect of<br />

those classical anti-cancer treatments. RNA helicases p68 (DEAD-box5,<br />

DDX5) and p72 (DEAD-box17, DDX17) act as transcriptional co-activators<br />

of several tumor-relevant genes, e.g. estrogen receptor α (ERα).<br />

DDX17 is significantly associated to an increase in relapse-free and<br />

overall survival in ERα-positive breast cancer, however inversely associated<br />

to Her2/neu expression. In contrast, DDX5 expression correlates<br />

with elevated levels of Her2/neu and higher stages of tumor grading.<br />

Both factors regulate ERα-activity in breast cancer. We investigated<br />

potential regulatory effects of hyperthermia on the expression of these<br />

breast cancer-related factors.<br />

Methods. Various ERα-positive breast cancer cell lines (MCF-7, ZR-75-1,<br />

T47D, BT-474) were cultured under hyperthermia (42°C, 2 h) followed<br />

by maintenance under regular culture conditions (37°C, 4 h). As a negative<br />

control the same cell lines were cultivated under regular temperature<br />

conditions permanently. mRNA and protein expression levels of<br />

ESRα isoforms, DDX5 and DDX17 were analyzed by RT-PCR, Western<br />

blot and immunocytochemistry technique.<br />

Results. The analyses revealed markedly decreased mRNA and protein<br />

levels of ERα isoforms, as well as of DDX5 and DDX17 in cells exposed<br />

to hyperthermia compared to cells cultured under regular conditions.<br />

Our results clearly indicate a regulatory effect of hyperthermal treatment<br />

on both, the mRNA and protein expression of the breast cancerrelevant<br />

gene ERα and its co-activators DDX5 and DDX17.<br />

Conclusion. According to our findings, hyperthermal treatment seems<br />

to represent a method that may improve classical anti-cancer therapies<br />

by down-regulating the activity of important factors in breast cancer<br />

biology. We hypothesize that hyperthermia inhibits the expression of<br />

ERα isoforms and its co-activators, thus probably leading to a suppression<br />

of tumor progression. However, the molecular background of signaling<br />

pathways that undergo hyperthermia-dependent alterations and<br />

its concomitant effects on tumor biology still need to be investigated in<br />

more detail.


0085<br />

Quality of life (QoL) in patients with metastatic breast cancer<br />

(MBC) treated with capecitabine – second interim analysis of the<br />

<strong>German</strong> non-interventional study (NIS)<br />

*C .-C . Steffens1 1MVZ Hämatologie/Onkologie, Onkologie, Stade, Deutschland<br />

Background. Capecitabine (CAPE) is a commonly used treatment option<br />

for MBC with proven efficacy. The aim of this study was to analyse<br />

QoL.<br />

Patients and methods. Patients with MBC, irrespective of HER2-status<br />

are included in this NIS. To evaluate QoL the EORTC Quality of Life<br />

questionnaire QLQ-C30 (v 3.0) was used. The presented data are part of<br />

a pre-planned interim analysis with up to 12 documented cycles.<br />

Results. Until 12/2010, 594 of 750 planned patients had been registered<br />

and 447 of these were documented to have received at least one cycle<br />

of CAPE. The average age of the patients was 61.4 (±11) years. 45%<br />

of patients received CAPE monotherapy (MT) and 55% combination<br />

therapy (CT). 41% of patients were treated 1st line, 28% 2nd line and<br />

the remaining in 3rd or higher lines. The most common combination<br />

partners were bevacizumab (16%), lapatinib (13%), vinorelbine (10%) or<br />

trastuzumab (9%). Clinical responses were displayed by 27.9% patients<br />

for MT and 39.9% for CT, while clinical benefit was noted in 61% of patients<br />

irrespective of treatment modality. Data from up to 482 patients<br />

were available for analyses of QoL. Patients with CT showed significantly<br />

better scores at baseline than MT patients for physical, role and<br />

cognitive functioning as well as fatigue, pain and financial problems.<br />

During the course of treatment global health, emotional and role functioning<br />

increased for CT patients, but only the rise in global health was<br />

statistically significant. Irrespective of treatment, physical functioning<br />

remained stable over the course of up to 12 treatment cycles. Social<br />

functioning showed a decrease in the group treated with MT, but an<br />

increase for the group treated with CT. Compliance rates were between<br />

68% (cycle 12, n=31) and 87% (cycle 1, n=209) during the 12 cycles. Patient<br />

satisfaction regarding the information given on the overall cancer<br />

treatment and side effects was high (mean ≥4 out of 5). At least half of<br />

the patients evaluated their treatment, the treatment outcome and the<br />

side-effects as or better than expected.<br />

Conclusions. CAPE was most commonly used as 1st line treatment and<br />

displayed better treatment outcome when given in combination. Overall,<br />

QoL did not decrease and was better for the combination therapy<br />

group. However, further data, especially for the later cycles, need to be<br />

acquired to verify these assumptions.<br />

0090<br />

Survival analysis of patients with primary breast cancer initially<br />

treated at a certified academic breast unit<br />

* J . Heil1,2 , A . Gondos3 ; F . Marmé2,4 , H . Brenner3 , G . Rauch5 , C . Sohn1,2 , A .<br />

Schneeweis1,2 1 2 Frauenklinik, Brustzentrum, Heidelberg, Deutschland, Nationales<br />

Centrum für Tumorerkrankungen, Gynäkologische Onkologie, Heidelberg,<br />

Deutschland, 3DKFZ, Division of Clinical Epidemiology and Aging Research,<br />

Heidelberg, Deutschland, 4Frauenklinik, Brustzentrum, Heidelberg,<br />

Deutschland, 5Institut für medizinische Biometrie, Heidelberg, Deutschland<br />

Aim. Outcome evaluation of patients with primary breast cancer treated<br />

at a certified academic breast unit.<br />

Methods. We prospectively collected data of 3338 patients, diagnosed<br />

with primary breast cancer between 01.01.2003 and 31.12.2010 and treated<br />

at the Breast Unit Heidelberg in order to analyze outcome in clinical<br />

practice. We evaluated local control rate (LCR), disease-free survival<br />

(DFS), distant disease-free survival (DDFS), observed overall survival<br />

(OOS) and age adjusted relative overall survival (ROS). In addition, the<br />

impact of known prognostic factors on these outcome variables was examined<br />

in univariate and multivariate analyses.<br />

Results. Of all patients, 368 (11.0%) had carcinoma in situ (CIS) and 197<br />

(5.9%) had bilateral cancers., For the 2970 patients with invasive cancer,<br />

of which 49 patients (1.7%) had metastastic disease at time of diagnosis,<br />

DFS, LCR, DDFS, OOS and ROS at 5 years were 79.8%, 84.7%, 81.2%,<br />

86.3%, and 89.8%, respectively. In multivariate analysis age, pT category,<br />

nodal status, hormone receptor status and grading were identified as<br />

independent prognostic factors for OS.<br />

Conclusion. Compared with recent population based reports from <strong>German</strong>y,<br />

more favourable patient characteristics and nominally higher<br />

survival was found among this large cohort of patients with primary<br />

breast cancer treated at a single certified breast unit.<br />

0094<br />

Sequential treatment with Epirubicin/Cyclophosphamide, followed<br />

by Docetaxel vs. FEC120 in the adjuvant treatment of breast<br />

cancer patients with extensive lymph node involvement: final<br />

survival analysis of the <strong>German</strong> ADEBAR phase III study<br />

*W . Janni1 , N . Harbeck2 , H . Sommer3 , B . Rack3 , D . Augustin4 , W . Simon5 ,<br />

J . Jueckstock3 , A . Wischnik6 , K . Anneke7 , K . Friese3 , M . Kiechle7 1 2 HHU, Frauenklinik, Düsseldorf, Deutschland, Universitätsklinik Köln,<br />

Brustzentrum Köln Frechen, Köln, Deutschland, 3LMU, Frauenklinik,<br />

München, Deutschland, 4Klinikum, Brustzentrum Ostbayern, Deggendorf,<br />

Deutschland, 5Robert-Bosch-Krankenhaus, Frauenklinik, Stuttgart,<br />

Deutschland, 6Zentralklinikum, Frauenklinik, Augsburg, Deutschland,<br />

7Technische Universität, Frauenklinik, München, Deutschland<br />

Background. Based on meta-analytic evidence, taxane containing adjuvant<br />

chemotherapy has been established as standard treatment in<br />

node-positive breast cancer. However, in the MA-21 study, adriamycincyclophosphamide,<br />

followed by paclitaxel (AC-P) was significantly inferior<br />

to the gold standard of anthracycline treatment, FEC120 (Burnell,<br />

SABCS 2006). We prospectively compared a sequential epirubicin-docetaxel<br />

chemotherapy regimen to FEC120.<br />

Patients and methods. The ADEBAR study was a multicenter phase III<br />

trial (n=1502) to evaluate whether breast cancer (BC) pts with >3 axillary<br />

lymph node metastases benefit from a sequential anthracycline-docetaxel<br />

regimen (E90C–D: 4 cycles epirubicin [E] 90 mg/m2 plus cyclophosphamide<br />

[C] 600 mg/m2 q21 days followed by 4 cycles docetaxel [D]<br />

100 mg/m2 q21 days) compared to dose-intensive anthracycline-containing<br />

polychemotherapy (FE120C: 6 cycles E 60 mg/m2 d 1+8, 5-FU<br />

500 mg/m2 d 1+8 and C 75 mg/m2 d 1–14, q4 weeks). The median followup<br />

time will be 60 months.<br />

Results. Treatment was stopped prematurely in 3.7% of the pts in the<br />

E90C–D arm and in 8.0% in the FE120C arm due to toxicity (p=0.0009).<br />

Antibiotic treatment was given in 10.4% (E90C–D) vs. 19.7% (FE120C),<br />

G-CSF support in 39.2% vs 61.4 % and erythropoietin stimulation in<br />

8.7% vs. 20.0%, respectively. Mature final 5-year-survival data will be<br />

presented at the SABCS meeting 2011.<br />

Conclusion. Different toxicity profiles given, hematological toxicity in<br />

the FE120C group was more severe than in the E90C–D. Mature survival<br />

data will be discussed in this context.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

67


Abstracts<br />

0108<br />

Trastuzumab treatment of early breast cancer patients receiving<br />

no adjuvant chemotherapy<br />

*P . Dall1 , K . Friedrichs2 , H . Timmer³, V . Petersen4 , A . Hinke5 , C . Brucker6 ,<br />

A . Nacke7 , P . Schmidt8 , A . von der Assen9 1 Städt . Klinikum, Frauenklinik, Lüneburg, Deutschland, 2 Krankenhaus<br />

Jerusalem, Mammazentrum, Hamburg, Deutschland, ³Onkologische Gemeinschaftspraxis,<br />

Münster, Deutschland, 4 Praxis, Heidenheim, Deutschland,<br />

5 WiSP, Biostatistik, Langenfeld, Deutschland, 6 Klinikum Nürnberg,<br />

Brustzentrum, Nürnberg, Deutschland, 7 Praxis, Remagen, Deutschland,<br />

8 Praxis, Neunkirchen, Deutschland, 9 Franziskus-Hospital Harderberg,<br />

Georgsmarienhütte, Deutschland<br />

Background. Trastuzumab (T) is approved for the treatment of early,<br />

HER2+ breast cancer (BC) in parallel or sequentially to adjuvant chemotherapy<br />

(CT). However, as in advanced disease, the antibody is obviously<br />

used without chemotherapy in a selected group of HER2+ patients<br />

(pts). The analysis characterizes this subgroup and describes safety and<br />

efficacy outcome parameters based on data from a large prospective observation<br />

trial.<br />

Methods. 2870 pts have currently been enrolled and documented in<br />

this ongoing non-interventional study from 270 <strong>German</strong> institutions.<br />

At data lock for this evaluation, adequate documentation was available<br />

from 2422 eligible pts.<br />

Results. T was given to 180/2422 pts (7.4 %) without preceding or concomitant<br />

CT (noCT). In this subgroup pts typically were older (median<br />

58 vs. 56 in the CT group, p=0.0026; ≥70 years: 18%/10%), had smaller<br />

tumors (pT1 49%/43%, p=0.11), more favorable histology (G3 45%/53%,<br />

p=0.045), a higher percentage of positive hormone receptor (67%/61%,<br />

p=0.096) and less radiotherapy (64%/79%, p


EMT and ALDH1 expression was not correlated to any of the prognostic<br />

clinical markers.<br />

Conclusion. Our data indicate that (1) a subset of primary breast cancer<br />

patients shows EMT and stem cell characteristics and (2) the currently<br />

used detection methods for CTC are not efficient to identify a subtype<br />

of CTC which underwent EMT. (3) The clinical relevance on prognosis<br />

and therapy response has to be further evaluated in a prospective trial.<br />

0114<br />

The PACOVAR-trial: A phase I/II study of pazopanib (GW786034)<br />

and metronomic cyclophosphamide in patients with platinumresistant<br />

recurrent, pre-treated ovarian cancer<br />

*C . Mayer1 , R . Eickhoff2 , E . Bischofs1 , G . Gebauer3 , T . Fehm4 , F . Lenz5 ,<br />

H .-C . Fricke6 , E .-F . Solomayer7 , N . Fersis8 , M . Schmidt9 , M . Wallwiener1 ,<br />

A . Schneeweiss1,10 , C . Sohn1 , M . Eichbaum1 1 2 Universitäts-Frauenklinik Heidelberg, Heidelberg, Deutschland, Alcedis<br />

GmbH, Gießen, Deutschland, 3Marienkrankenhaus, Frauenklinik, Hamburg,<br />

Deutschland, 4Universitäts-Frauenklinik Tübingen, Tübingen, Deutschland,<br />

5Krankenhaus Hetzelstift, Frauenklinik, Neustadt/Weinstraße, Deutschland,<br />

6 7 Klinikum Konstanz Frauenklinik, Konstanz, Deutschland, Universitätsklinikum<br />

des Saarlandes, Frauenklinik, Homburg, Deutschland, 8Klinikum Chemnitz gGmbH, Frauenklinik, Chemnitz, Deutschland, 9Universitäts- Frauenklinik Mainz, Mainz, Deutschland, 10Nationales Centrum für Tumorerkrankungen,<br />

Gynäkologische Onkologie, Heidelberg, Deutschland<br />

Background. The prognosis of patients with recurrent, platinum-resistant<br />

epithelial ovarian cancer (EOC) is poor. There is no standard<br />

treatment available. Emerging evidence suggests a major role for antiangiogenic<br />

treatment modalities in EOC, in particular in combination<br />

with the metronomic application of low dose chemotherapy. The novel,<br />

investigational oral antiangiogenic agent pazopanib targeting vascular<br />

endothelial growth factor receptor (VEGFR), platelet-derived growth<br />

factor receptor (PDGFR) and c-kit is currently being studied in different<br />

tumour types and is already used as first line therapy in recurrent renal<br />

cell carcinoma. A combined therapy consisting of pazopanib and metronomic<br />

oral cyclophosphamide may offer a well-tolerable treatment<br />

option to patients with recurrent, pretreated EOC.<br />

Methods and design. This study is designed as a multicenter phase I/<br />

II trial evaluating the optimal dose for pazopanib (phase I) as well as<br />

activity and tolerability of a combination regimen consisting of pazopanib<br />

and metronomic cyclophosphamide in the palliative treatment of<br />

patients with recurrent, platinum-resistant, pre-treated ovarian cancer<br />

(phase II). The patient population includes patients with histologically<br />

or cytologically confirmed diagnosis of EOC which is platinum resistant<br />

or refractory, cancer of the fallopian tube or peritoneal cancer. Patients<br />

must have measurable disease according to RECIST criteria and<br />

must have failed available standard chemotherapy.<br />

Primary objectives are determination of the optimal doses for pazopanib<br />

(phase I) and the overall response rate according to RECIST criteria<br />

(phase II). Secondary objectives are time to progression, overall survival,<br />

safety and tolerability. The treatment duration is until disease progression<br />

or intolerability of study drug regimen (with a maximum of 13<br />

cycles up to 52 weeks per subject). Enrollment has started in November<br />

2010 in 5 sites experienced in the conducture of clinical trials. Three patients<br />

have completed first eight weeks of treatment without DLT so far.<br />

Discussion. The current phase I/II trial shall clarify the potential of the<br />

multitargeting antiangiogenic tyrosinkinaseinhibitor GW 786034 (pazopanib)<br />

in combination with oral cyclophosphamide as salvage treatment<br />

in patients with recurrent, pretreated ovarian cancer. Preliminary<br />

safety results will be presented.<br />

0115<br />

Bevacizumab (rhuMAB VEGF) in combination with metronomic<br />

cyclophosphamide in advanced gynecological cancers resistant<br />

to standard treatment<br />

*K . Smetanay, J . Aigner1 , F . Marmé1 , M . Eichbaum1 , C . Sohn1 , A . Schneeweis1 1Universitätsklinikum Heidelberg, Frauenklinik/NCT Gynäkologische Onkologie,<br />

Heidelberg, Deutschland<br />

Introduction. Patients with heavily pretreated gynecological cancers<br />

(ovarian cancer, adenocarcinoma of the cervix uteri and endometrial<br />

cancer) have limited treatment options. Vascular endothelial growth<br />

factor (VEGF) is the best characterized angiogenic factor and is regarded<br />

as a promising therapeutic target at least in patients with ovarian<br />

cancer. In addition to bevacizumab, the monoclonal antibody against<br />

VEGF, low dose metronomic cyclophosphamide has shown some antiangiogenic<br />

properties. Here we report results of a retrospective analysis<br />

of our patients with heavily pretreated gynecological cancers who received<br />

bevacizumab in combination with low dose cyclophosphamide<br />

at our institution since 2008. In addition we present an overview of the<br />

recent literature published in PubMed-, MEDLINE and EMBASE-database.<br />

Patients and methods. Five patients with heavily pretreated (at least four<br />

lines of chemotherapy) platin-resistent gynecological carcinomas received<br />

intravenous bevacizumab 10 m/kg every two weeks in combination<br />

with oral cyclophosphamide 50 mg per day. Endpoints were time to progression<br />

and toxicity according to Common Terminology Criteria of<br />

Adverse Events Version 3.0 (CTCAEv3.0).<br />

Results. All patients showed a rapid improvement of tumour symptoms.<br />

Median time to progression was 10 months (range: 6–33). One patient<br />

with an adenocarcinoma of the cervix is still in remission for 7 months.<br />

Bevacizumab related toxicities comprised deep vein thrombosis grade<br />

III in one patient and arterial hypertension grade II in 3 patients,<br />

which were well manageable by standard treatment. We experienced no<br />

proteinuria >grade 1 as assessed by urine dipsticks before each administration<br />

of bevacizumab. Although data to endometrial and cervical<br />

cancers are very rare a comprehensive literature review supports our<br />

experience and will be presented at the meeting.<br />

Conclusion. Bevacizumab in combination with oral metronomic cyclophosphamide<br />

is well tolerated and has significant activity as palliative<br />

therapy of heavily pretreated patients with platin-resistent gynecological<br />

cancers. Translational research to define predictors of response e.g.<br />

anti-angiogenesis gene polymorphisms and severe side effects e.g. gastro-intestinal<br />

perforation to further improve the therapeutic index are<br />

eagerly needed.<br />

0124<br />

LOH at chromosomal band 6q and 10q in fractionated circulating<br />

DNA of ovarian cancer patients is predictive for tumor cell spread<br />

and reduced disease-free and overall survival<br />

*P . Wimberger1 , J .D . Kuhlmann1 , H . Schwarzenbach2 , M . Heubner1 , M . Poetsch3<br />

, R . Kimmig1 , S . Kasimir-Bauer1 1Universität Duisburg-Essen, Klinik für Gynäkologie und Geburtshilfe,<br />

Essen, Deutschland, 2Universität Hamburg-Eppendorf, Institut für Tumorbiologie,<br />

Hamburg, Deutschland, 3Universität Duisburg-Essen, Institut für<br />

Forensische Medizin, Essen, Deutschland<br />

Background. We recently showed that LOH proximal to M6P/IGF2R locus<br />

(D6S1581) in ovarian tumors is predictive for tumor cell spread to<br />

the bone marrow (BM). For therapy-monitoring, it would be desirable<br />

to establish a blood-based biomarker. Therefore, we quantified circulating<br />

DNA (cirDNA) in sera of 63 ovarian cancer patients before surgery<br />

and after chemotherapy, measured incidence of LOH at four cancer-relevant<br />

chromosomal loci, correlated LOH with tumor cell spread to the<br />

BM and evaluated prognostic significance of LOH.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

69


Abstracts<br />

Methods. cirDNA was fractionated into high- and low molecularweight<br />

fraction (HMWF, LMWF) for LOH-profiling, utilizing PCRbased<br />

fluorescence microsatellite analysis. BM aspirates were analyzed<br />

for DTC by immunocytochemistry using the pan-cytokeratin antibody<br />

A45-B/B3.<br />

Results. cirDNA levels in the HMWF before surgery were predictive for<br />

residual tumor load (p=0.017). After chemotherapy, we observed a decline<br />

of cirDNA in the LMWF (p=0.0001) but not in the HMWF. LOH<br />

was prevalently detected in the LMWF with an overall frequency of 67<br />

%, only moderately ablating after chemotherapy (45%). Before surgery,<br />

LOH in the LMWF at marker D10S1765, D13S218 and D6S1581 significantly<br />

correlated with tumor grading, FIGO stage and disease-free<br />

survival (p=0.004, p=0.033, p=0.032, respectively). In both combined<br />

fractions, LOH at D6S1581 additionally associated with overall survival<br />

(p=0.030). Moreover, solely LOH at D10S1765 in LMWF after therapy<br />

correlated with DTC in BM after therapy (p=0.017).<br />

Conclusion. We demonstrate the necessity of DNA-fractionation for<br />

LOH analysis on cirDNA and identified LOH at D10S1765 and D6S1581<br />

as blood-based biomarkers for ovarian cancer, being relevant for treatment-monitoring.<br />

0127<br />

Implementation of the national S3 guideline recommendations<br />

for primary surgery of breast cancer patients in different regions<br />

of <strong>German</strong>y: a population-based evaluation<br />

*S . Schrodi1 , A . Tillack2 , A . Naas2 , A . Niedostatek3 , C . Werner3 , B . Holleczek4 ,<br />

C . Stegmaier4 , G . Schubert-Fritschle1 , J . Engel1 1Tumorzentrum München (TZM), Tumorregister München (TRM), München,<br />

Deutschland, 2Tumorzentrum Land Brandenburg, Frankfurt (Oder),<br />

Deutschland, 3Regionales Klinisches Krebsregister Dresden, Dresden,<br />

Deutschland, 4Epidemiologisches Krebsregister Saarland, Saarbrücken,<br />

Deutschland<br />

Purpose. In 2004, the first national S3 guideline for the diagnosis, therapy<br />

and aftercare of breast cancer patients was implemented in <strong>German</strong>y,<br />

and the first update was released in 2008. One aim of the study was to<br />

evaluate guideline adherence for primary surgery of breast cancer and<br />

possible influences on survival in four different regions of <strong>German</strong>y.<br />

Methods. Data from 69,587 cases of operated breast cancer patients,<br />

diagnosed between 1999 and 2010 was obtained from cancer registries<br />

in the regions of Brandenburg (n=18,928), Dresden (n=9607), Munich<br />

(n=33,496) and Saarland (n=7556). Guideline adherence was examined<br />

first by means of annual percentages of the quality indicators breast<br />

conserving surgery (BCS) and sentinel lymph node biopsy (SLNB), and<br />

subsequently with multiple logistic models for three time periods. For<br />

the interpretation of outcome quality (survival), cox regression models<br />

were additionally calculated.<br />

Results. Although regional differences in the frequency and speed of<br />

realization of the quality care procedures BCS and SLNB were observed,<br />

both procedures were already conducted in all four regions before<br />

the implementation of the S3 guidelines. Regarding the different distribution<br />

of prognostic factors, patients with small (pT1/2) tumours had<br />

a 2.6-fold higher chance for BCS in the western regions compared to<br />

the eastern regions during the period from 1999 to 2003. This difference<br />

declined to an odds ratio (OR) of 1.2 in the period 2008 to 2010. While<br />

SLNB has been known to be effective for the definition of nodal status<br />

since 2003, it was not recommended in <strong>German</strong> guidelines for clinical<br />

routine until 2008. Nevertheless, SLNB rates rose rapidly in all regions<br />

starting in 2003, although faster rates were observed in the western regions<br />

than in the eastern regions. Between 2003 and 2007, the chance<br />

of receiving SLNB was 3.2-fold higher in the west than in the east, but<br />

these rates converged in 2008–2010 (OR 1.3). Such regional differences<br />

in procedural quality could not be observed in the quality of outcome.<br />

The better 10-year overall survival in Munich can largely be described<br />

by different distributions of prognostic factors.<br />

70 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Conclusion. Concerning BCS and SLNB, guideline recommendations<br />

were already practiced in all four <strong>German</strong> regions before their implementation.<br />

The East-West differences in the proportions of these procedures<br />

declined over the years and the speed of realisation seems not to<br />

have had any impact on survival.<br />

0128<br />

Population-based consequences of mammography screening for<br />

therapy of breast cancer patients. An analysis of Bavarian cancer<br />

registry data<br />

*S . Schrodi1 , U . Braisch2 , G . Schenkirsch3 , T . Maisel4 , S . Petsch5 , M . Klinkhammer-Schalke6<br />

, D . Hölzel1 , U . Mäder7 , S .H . Heywang-Köbrunner8 , M . Meyer2 ,<br />

J . Engel1 1Tumorzentrum München (TZM), Tumorregister München (TRM), München,<br />

Deutschland, 2Bevölkerungsbezogenes Krebsregister Bayern, Registerstelle,<br />

Erlangen, Deutschland, 3Tumorzentrum Augsburg, Augsburg, Deutschland,<br />

4Klinikregister Bayreuth, Bayreuth, Deutschland, 5Tumorzentrum der<br />

Universität Erlangen-Nürnberg, Erlangen, Deutschland, 6Tumorzentrum Regensburg, Regensburg, Deutschland, 7Tumorzentrum Würzburg,<br />

Würzburg, Deutschland, 8Referenzzentrum Mammographie München,<br />

München, Deutschland<br />

Purpose. A quality controlled mammography screening program was<br />

initiated at the end of 2003 in Bavaria, a region with 12.5 million inhabitants,<br />

and transferred over to the national screening program at<br />

the end of 2006. The purpose of this study was to evaluate immediate<br />

population-based consequences of mammography screening on breast<br />

cancer therapy.<br />

Methods. Data from 75,475 breast cancer cases, diagnosed between 2000<br />

and 2008 and registered in one of the six Bavarian clinical cancer registries<br />

were analysed. 51.4% of these patients were between 50 and 69 years<br />

of age and therefore the target population for screening. Trends of<br />

prognostic factors and standard therapies were calculated for three age<br />

groups (≤49 years, 50–69 years, ≥70 years) by means of annual percentages<br />

as well as 95%-confidence intervals for the percent difference between<br />

2000 and 2008 (year of diagnosis). For interpretation of therapy<br />

trends, logistic regression models were calculated.<br />

Results. Therapy trends showed that the increasingly favourable stage<br />

distribution may have resulted in the reduction of more radical surgical<br />

methods such as mastectomy (2000: 32.6%; 2008: 19.6%) or axillary<br />

dissection (89.0% vs. 37.0%). An increase of radiation therapies (59.7%<br />

vs. 66.6%) can be explained to some extent by the increase in breast conserving<br />

surgeries. The shift to more favourable prognostic factors led,<br />

in accordance with the guidelines, to an increase of the proportion of<br />

singular endocrine therapies (28.5% vs. 40.7%), a decrease of chemotherapies<br />

(20.4% vs. 13.1%) and therefore to more gentle systemic therapies<br />

overall. These trends strengthened in the years following the introduction<br />

of screening, with a simultaneous rise of screening participants in<br />

the target population.<br />

Conclusion. The introduction of mammography screening in Bavaria<br />

already shows the expected trend towards more favourable prognostic<br />

factors. Among other things, this could be a reason for the increasing<br />

use of more gentle therapies. Whether the screening in Bavaria leads<br />

to a mortality reduction, has to be analysed on the basis of an initial<br />

comparison of participation status followed by the trends in mortality<br />

thereafter.


0139<br />

Pegylated liposomal doxorubicin (PLD) and carboplatin in<br />

malignant mixed epithelial mesenchymal and mesenchymal<br />

gynecologic tumors. A meta-analysis of three prospective AGO<br />

Study Group trials<br />

*P . Harter1 , A . Reuss2 , L . C . Hanker3 , J . Sehouli4 , K . Baumann5 , W . Meier6 , P .<br />

Wimberger7 , W . Schröder8 , A . Burges9 , A . du Bois1 1Kliniken Essen Mitte, Gynäkologie & Gynäkologische Onkologie, Essen,<br />

Deutschland, 2Universitätsklinikum Gießen und Marburg, KKS, Marburg,<br />

Deutschland, 3Johann Wolfgang Goethe Universität, Frauenklinik,<br />

Frankfurt, Deutschland, 4Charite Campus Virchow, Frauenklinik, <strong>Berlin</strong>,<br />

Deutschland, 5Universitätsklinikum Gießen und Marburg, Frauenklinik,<br />

Marburg, Deutschland, 6Evangelisches Krankenhaus, Frauenklinik, Düsseldorf,<br />

Deutschland, 7Universitätsklinik, Frauenklinik, Essen, Deutschland,<br />

8 9 GYNAEKOLOGICUM, Bremen, Deutschland, Uniklinikum Großhadern,<br />

Frauenklinik, München, Deutschland<br />

Background. After conduction of a pure gynecologic sarcoma trial<br />

(AGO-GYN7), showing promising activity of PLD and carboplatin, we<br />

decided to perform a meta-analysis including two other trials in whom<br />

patients with gynecologic sarcoma treated with the same regimen were<br />

included.<br />

Methods. Patients of the AGO-GYN 2, AGO-GYN 3, and AGO-GYN 7<br />

trial with advanced or recurrent gynecologic sarcoma or carcinosarcoma<br />

were included. AGO-GYN 2 was a dose finding phase I/II trial (PLD<br />

20 to 50 mg and carboplatin AUC 6). The 2 other trials investigated PLD<br />

40 mg/m2 and carboplatin AUC 6, q28.<br />

Results. 59 patients were included in this analysis: 30 pts with carcinosarcoma,<br />

20 pts with leiomyosarcoma, and 9 pts with endometrial stromal<br />

sarcoma. 93% of the patients had first diagnosis. 91.5% of the pts<br />

were treated with PLD 40 mg/m2 and carboplatin AUC 6, q28d. The<br />

incidence of grade 3/4 hematologic toxicities was: anemia 17.0%, neutropenia<br />

52.6%, and thrombocytopenia 23.8%. There was one febrile<br />

neutropenia. Main grade 3/4 non-hematologic toxicities were: PPE 5.1%,<br />

and constipation 3.4%. The rate of CR/PR was 31.6%, CR/PR/SD 68.4%<br />

(58.8% in carcinosarcoma, 80% in leiomyosarcoma, 66.7% in endometrial<br />

stromal sarcoma). 12 months PFS and OS was 38.1% and 74.6%,<br />

respectively. 12 months PFS and OS in carcinosarcoma was 37.6% and<br />

71.3%, and in leiomyosarcoma and endometrial stromal sarcoma 37.9%<br />

and 78.6%.<br />

Conclusions. The combination of PLD and carboplatin is active in this<br />

indication. The safety profile seems to be favourable compared to other<br />

widely used combination therapies for these diseases.<br />

0144<br />

Review of screening mammograms from interval cancers – First<br />

results of the pilot study of mammography screening in Lower<br />

Saxony<br />

*I . Urbschat1 , G . Hecht2 , J . Kieschke1 1Epidemiologisches Krebsregister Niedersachsen (EKN), Registerstelle,<br />

Oldenburg, Deutschland, 2Referenzzentrum Mammographie Nord, Oldenburg,<br />

Deutschland<br />

Aim. Interval cancers (IV-Ca) are breast cancers which appear between<br />

two screening examinations. The detection of IV-Ca is of crucial importance<br />

for the quality of any screening program and is a key parameter<br />

defined in the EU Guidelines. The goal of the quality assurance of<br />

IV-Ca is to categorize them into five categories (“true interval cancer”,<br />

“minimal sign”, “false-negatives”, “radiological occult”, “unclassifiable”)<br />

and to guarantee an optimisation of the quality of the screening<br />

(§ 23 Abs. 10 Krebsfrüherkennungs-Richtlinie vom 15.10.09). The pilot<br />

study in Lower Saxony will provide the opportunity to gain experiences<br />

with the different review processes of IV-Ca in <strong>German</strong>y.<br />

Methods. In June 2010, IV-Ca were identified by record linkage of data<br />

from the population-based epidemiological cancer registry in Lower<br />

Saxony (EKN) with the data of 25,000 women, who attended the 2006<br />

mammography screening in one screening unit of Lower Saxony. The<br />

classification of “false-negative” cases initially had to take place only<br />

with the retrospective reviewing of the screening mammograms of the<br />

IV-Ca without diagnostic mammograms (provisional classification).<br />

Afterwards, the review will be repeated with medical tumour data<br />

from EKN (ICD-10 code, side, localisation, tumour size). Lastly and<br />

according to the EU Guidelines, radiologists should compare the screening<br />

mammograms with diagnostic mammograms to categorize them<br />

into five categories (definitive classification).<br />

Results. 65 IV-Ca were identified in the EKN; 22 of them were diagnosed<br />

in the first year after screening, 43 in the second year. First results<br />

of the “provisional classification” will be shown.<br />

Discussion: For optimisation of the quality of the mammography screening<br />

program, the results of the first review process (provisional classification)<br />

would be reported to the radiologists of the screening unit.<br />

Actually, there are no possibilities to make a “definitive classification”<br />

of all IV-Ca, because diagnostic mammograms are not available for<br />

all patients. Without “definitive classification” there are no comparable<br />

results of IV-Ca-rates and frequencies of false-negative diagnoses.<br />

In contrast to the Scandinavian and some other European countries,<br />

in <strong>German</strong>y the diagnostic records and mammograms can only be<br />

accessed with the consent of the patient; this will be difficult for the<br />

screening program. Alternatively, the government can enact laws to<br />

facilitate the transfer of the diagnostic mammograms.<br />

0146<br />

Mammakarzinom und Adipositas – was zeigen die deutschen<br />

BRENDA-Daten?<br />

*L . Schwentner1 , R . Wolters2 , M . Wischnewsky2 , C . Kurzeder3 , R . Kreienberg1<br />

, A . Wöckel1 1 2 Universität Ulm, Gynäkologie und Geburtshilfe, Ulm, Deutschland, Universität<br />

Bremen, E-science, Bremen, Deutschland, 3Klinikum Essen Mitte,<br />

Gynäkologische Onkologie, Essen, Deutschland<br />

Einleitung. BRENDA („Breast <strong>Cancer</strong> Care under evidence-based-guidelines“)<br />

ist eine multizentrische Versorgungsforschungsstudie von<br />

Patientinnen mit primärem Mammakarzinom. Ziel dieser Kohorten-<br />

Studie war die Untersuchung einer Korrelation zwischen Body-Mass-<br />

Index (BMI) und dem Endpunkt RFS unter Berücksichtigung der adjuvanten<br />

Therapie.<br />

Methoden. In einer Subgruppenanalyse des BRENDA-Kollektives<br />

wurden retrospektiv die Daten von 4912 Patientinnen in multivariaten<br />

Analysen untersucht.<br />

Ergebnisse. Insgesamt lag bei 3992 (81,3%) Patientinnen ein BMI 30 vor. In der Gruppe der östrogenrezeptorpositiven<br />

Mammakarzinome zeigte sich ein signifikanter Überlebensvorteil<br />

für Patientinnen mit einem BMI


Abstracts<br />

makarzinom. Weitere prospektive Studien müssen bestätigen, welche<br />

Therapieformen bei hohem BMI das Outcome im adjuvanten Setting<br />

günstig beeinflussen.<br />

0160<br />

Abagovomab maintenance therapy in patients with ovarian cancer<br />

after complete response (CR) post-first-line chemotherapy:<br />

Results of the randomized, double-blind, placebo-controlled,<br />

multicenter AGO-OVAR 10 (MIMOSA) trial<br />

*S . Mahner1 , P . Harter2,3 , J . Sehouli4 , W . Meier5 , P . Wimberger6 , N . de<br />

Gregorio7 , A . Hasenburg8 , K . Baumann9 , B . Schmalfeldt10 , L . Hanker11 ,<br />

E . Solomayer12,13 , A . Staehle14 , M . Beckmann15 , U . Canzler16 , A . Burges17 ,<br />

K . Wollschlaeger18 , P . Hillemanns19 , C . Jackisch20 , F . Hilpert21 , G . Emons22 ,<br />

W . Schröder23 , A . Belau24 , B . Richter25 , J . Pfisterer26 , AGO Study Group and<br />

Mimosa Investigators27 1Universitätsklinikum Hamburg-Eppendorf, Gynäkologie, Hamburg,<br />

Deutschland, 2Kliniken Essen-Mitte, Klinik für Gynäkologie und Gynäkologische<br />

Onkologie, Essen, Deutschland, 3HSK, Klinik für Gynäkologie und<br />

Gynäkologische Onkologie, Wiesbaden, Deutschland, 4Charite Campus<br />

Virchow Klinikum, Frauenklinik, <strong>Berlin</strong>, Deutschland, 5Evangelisches Krankenhaus Düsseldorf, Klinik für Gynäkologie, Düsseldorf, Deutschland,<br />

6 7 Universitätsklinik Essen, Frauenklinik, Essen, Deutschland, Universitätsklinik<br />

Ulm, Frauenklinik, Ulm, Deutschland, 8Universität Freiburg,<br />

Frauenklinik, Freiburg, Deutschland, 9Universität Marburg, Frauenklinik,<br />

Marburg, Deutschland, 10Klinikum Rechts der Isar, Frauenklinik, München,<br />

Deutschland, 11Universität Frankfurt, Frauenklinik, Frankfurt, Deutschland,<br />

12 13 Universität Tübingen, Frauenklinik, Tübingen, Deutschland, Universität<br />

des Saarlandes, Frauenklinik, Homburg, Deutschland, 14Klinikum Karlsruhe,<br />

Frauenklinik, Karlsruhe, Deutschland, 15Universität Erlangen, Frauenklinik,<br />

Erlangen, Deutschland, 16Universität Dresden, Frauenklinik, Dresden,<br />

Deutschland, 17Klinikum Großhadern, Frauenklinik, München, Deutschland,<br />

18 19 Universität Magdeburg, Frauenklinik, Magdeburg, Deutschland, Medizinische<br />

Hochschule Hannover, Frauenklinik, Hannover, Deutschland,<br />

20 21 Klinikum Offenbach, Frauenklinik, Offenbach, Deutschland, Universität<br />

Kiel, Frauenklinik, Kiel, Deutschland, 22Universität Göttingen, Frauenklinik,<br />

Göttingen, Deutschland, 23Klinikum Bremen-Mitte, Frauenklinik, Bremen,<br />

Deutschland, 24Universität Greifswald, Frauenklinik, Greifswald, Deutschland,<br />

25Klinikum Radebeul, Frauenklinik, Radebeul, Deutschland, 26Klinikum Solingen, Frauenklinik, Solingen, Deutschland, 27AGO Study Group, Mimosa<br />

Investigators, Deutschland<br />

Background. Abagovomab (A), a murine monoclonal anti-idiotypic<br />

antibody directed against CA125, has been shown to induce an active<br />

immune response against CA125 tumor-associated antigen in advanced<br />

ovarian cancer patients.<br />

Methods. A has been tested in a randomized (2:1) double-blind, placebo<br />

(P) controlled, multicenter phase III trial in patients with FIGO stage<br />

III/IV ovarian cancer after complete response to platinum-taxane firstline<br />

chemotherapy. A (2 mg/1 ml) or P was given subcutaneously every<br />

2 weeks for 6 weeks (induction phase); then every 4 weeks (maintenance<br />

phase) until recurrence, or up to 21 months after the last patient had<br />

been randomized. Primary endpoint is progression-free survival (PFS);<br />

secondary endpoints are OS and immunological response. An estimated<br />

870 patients, with a mean follow-up of 18 months, were needed to<br />

observe at least 535 recurrences, which provides a power >90% in rejecting<br />

the null hypothesis of equality between A and P on PFS according<br />

to an HR (hazard ratio) of 1.33. Primary analysis was run on PFS in the<br />

ITT population.<br />

Results. 888 patients were enrolled by December 2008, 593 in A arm<br />

and 295 in P arm. The median follow-up was 28.1 months and the mean<br />

number treatment administrations was 18. Baseline characteristics<br />

were balanced between arms. Overall tolerability profile was consistent<br />

with previous A studies. Median (95% CI) PFS was 13.24 (10.612–13.602)<br />

72 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

months for A arm and 13.21 (10.612–16.000) months for P arm; HR=1.099<br />

(0.919–1.315); p=0.301.<br />

Conclusion. Treatment with A did not translate into a prolonged PFS.<br />

0169<br />

The adhesion molecule L1CAM as novel therapeutic target for<br />

highly malignant pancreatic and ovarian carcinoma<br />

C . Dieckmann1 , O . Korniienko2 , G . Moldenhauer3 , A . Krüger4 , P . Altevogt3 ,<br />

H . Schäfer1 , *S . Sebens5 1Department of Internal Medicine I, Laboratory for Molecular Gastroenterology<br />

& Hepatology, Kiel, Deutschland, 2Institute for Experimental<br />

<strong>Cancer</strong> Research, Molecular Oncology, Kiel, Deutschland, 3<strong>German</strong> <strong>Cancer</strong><br />

Research Center, Translational Immunology D015 , Heidelberg, Deutschland,<br />

4Technische Universität München, Institute of Experimental Oncology and<br />

Therapy Research, München, Deutschland, 5Department of Internal Medicine<br />

I, Institute for Experimental Medicine, Kiel, Deutschland<br />

Background. The adhesion molecule L1CAM (CD171) accounts for enhanced<br />

motility, invasiveness and chemoresistance of tumor cells and<br />

thus represents a promising therapeutic target structure for various tumor<br />

entities. In pancreatic ductal adenocarcinoma (PDAC) and ovarian<br />

carcinoma elevated L1CAM expression has been detected being associated<br />

with an advanced tumor stage and poor prognosis.<br />

Aim. The present study intended to evaluate the therapeutic potential<br />

of combined treatment with L1CAM antibodies and chemotherapeutic<br />

drugs in PDAC and ovarian carcinoma model systems in vivo.<br />

Methods and results. Two L1CAM-specific antibodies showing strong<br />

binding to the L1CAM expressing PDAC cell line Colo357 and the ovarian<br />

carcinoma cell line SKOV3ip were used for treatment regimens.<br />

Combined therapy of SCID mice with either L1CAM antibody and gemcitabine<br />

and paclitaxel, respectively, reduced the growth of Colo357 or<br />

SKOV3ip tumors more efficiently than the treatment with the cytostatic<br />

drug alone or in combination with control IgG. The improved therapeutic<br />

response was accompanied by an increased number of apoptotic<br />

tumor cells, whereas proliferation of the tumor cells was not affected by<br />

combined treatment. Furthermore, a lowered activation of NF-kB along<br />

with a reduced expression of VEGF and a diminished number of CD31positive<br />

blood vessels were observed in tumors after combined therapy<br />

compared to control treatments, while the infiltration of macrophages<br />

was enhanced.<br />

Conclusion. Overall, these data support the suitability of L1CAM as therapeutic<br />

target and of L1CAM-interfering antibodies as an appropriate<br />

tool for an improved therapy of PDAC and ovarian carcinoma.<br />

0181<br />

Patient’s Perception and possibilities of optimization of clinical<br />

trials in gynaecological oncology<br />

*S .-M . Knetzger1 , T . Hildebrandt1 , M . Bani1 , C . Bayer1 , A . Hein1 , L . Kahmann1 ,<br />

C . Löhberg1 , S . Jud1 , M . Schauder1 , F . C . Thiel1 , P . Fasching1 , M . Beckmann1 ,<br />

M . P . Lux1 1Frauenklinik, Universitätsklinikum Erlangen, Universitäts-Brustzentrum<br />

Franken, Erlangen, Deutschland<br />

Introduction. Clinical trials are becoming more and more important to<br />

optimize prevention, diagnosis and therapy. They contribute towards<br />

transferring the latest knowledge to daily clinical life. Moreover, the option<br />

of participating in trials is a criterion of quality – certified centres<br />

are obliged to offer trials as well as to fulfil trial-quotes. On the other<br />

hand, trials are highly dependent on the cooperation of patients. Therefore<br />

the perception of clinical studies and the possibilities to optimize<br />

the offers from the patient’s point of view is very important.<br />

Material and methods. 2500 women are surveyed on the topics of perception<br />

and optimization of clinical trials by 24 specific questions. The


esults are compared relating to disease entity and other anamnestic<br />

factors.<br />

Results. 1029 patients could be evaluated (24.0% senological, 8.1% gynaecologic-oncological,<br />

29.3% obstetrical, 7.5% with endometriosis, 2.0%<br />

with desire of children, 21.9% others and 6.6% with missing categorization).<br />

Knowledge about clinical trials turned out to be very heterogeneous;<br />

e.g. only 18.5% of the participants know the term “randomisation”.<br />

91.9% consider clinical trials as useful (0.7% not useful, 7.4% do not<br />

know). In contrast, only 54.2% would participate in a clinical trial, 18.0%<br />

reject this and 27.8% are undecided. 69.9% support the participation in<br />

surveys and 64.4% would take part in trials to improve diagnosis. Only<br />

13.0% agree with drug testing trials. Regarding the treatment in clinical<br />

trials, 24.2% judge the quality of care better and 20.6% worse than treatment<br />

outside of trials (55.2% do not know). But 49.6% of the patients believe<br />

that they will get the best possible treatment within clinical trials.<br />

While financial compensation would only influence the willingness to<br />

participate of 11.8%, 33.4% of the patients think that a recommendation<br />

of the <strong>German</strong> <strong>Cancer</strong> Society would be a positive factor for participation.<br />

82.7% mention the medical specialist as the most important source<br />

of information about clinical trials. Significant differences were found<br />

in the sub-groups, which will be presented in detail.<br />

Summary. Generally a high percentage of patients consider clinical trials<br />

as important, though trials for drug testing are still seen most critically.<br />

Knowledge about trails is very heterogeneous. More educational work<br />

seems to be necessary, whereby patients have clear wishes and suggestions.<br />

0182<br />

Implementierung genexpressionsanalytischer Verfahren zur<br />

Bestimmung des individuellen Mammakarzinomrückfallrisikos<br />

in die klinische Praxis – Implementation of gene array methods<br />

to determine the risk of recurrence in breast cancer in clinical<br />

routine<br />

*S . Paepke1 , P . Völkel1 , H . Bronger1 , J . Ettl1 , M . Kiechle1 1Technische Universität München, Klinikum rechts der Isar, Frauenklinik,<br />

München, Deutschland<br />

Introduction. The biomarkers used so far to asses prediction and prognosis<br />

of early breast cancer are unreliable to a certain extent; grading<br />

shows a high intraobserver variability, Ki67 is not validated enough to<br />

differentiate between intermediate and highly proliferative disease, and<br />

lymph node status is subordinated to tumor biology. Genomic arrays<br />

(70- and 21-gene array) are available and partly used internationally in<br />

clinical decision making, in <strong>German</strong>y, however, only in clinical trials or<br />

in individual cases.<br />

Material and methods. At the IBZ (interdisciplinary breast center) of the<br />

Technische Universität München an algorithm was developed for the<br />

use of the 21-gene array in routine diagnostics, which leads to a therapy<br />

decision change in 60% of the cases tested. The MammaPrint® test is a<br />

DNA-micro array based diagnostic, multivariate in-vitro-Index-Assay<br />

(IVDMIA) and measures the activity of 70 genes to determine the probability<br />

of recurrent disease (as low or high risk group). MammaPrint®<br />

is used in both ER positive and ER negative stage I and II breast cancer<br />

with up to three positive lymph nodes.<br />

Concept. In a cohort study 15 cases in which the MammaPrint® assay<br />

was used were compared to the standard collective. We expect that between<br />

30% and 50% less cases will include chemotherapy in their therapy<br />

recommendations. The actual therapy changes and the cost-benefit ratio<br />

are analysed as these will be relevant for an implementation of the<br />

test in clinical routine.<br />

Outlook. The feasibility of MammaPrint® in clinical routine has been<br />

confirmed in several trials; an implementation in routine diagnostics<br />

must be critically discussed on the basis of prospectively collected data<br />

relevant to the <strong>German</strong> health care system. The results from the IBZ of<br />

the TU München are be presented.<br />

0191<br />

BKM120 in advanced endometrial cancer: an update on clinical<br />

trials<br />

*J . Sehouli1 , B . Gerber2 , L . Trandafir3 , C . Massacesi3 , N . Fretault3 , J . Stieglmaier4<br />

, M . Potzner4 , W . Lichtenegger5 1Charité <strong>Berlin</strong>, Europäisches Kompetenzzentrum für Eierstockkrebs, <strong>Berlin</strong>,<br />

Deutschland, 2Klinikum Südstadt, Universitätsfrauenklinik und Poliklinik,<br />

Rostock, Deutschland, 3Novartis Pharma, S .A .S ., Rueil-Malmaison, Frankreich,<br />

4Novartis Pharma, OCF, Nürnberg, Deutschland, 5Charité <strong>Berlin</strong>, Klinik<br />

für Frauenheilkunde und Geburtshilfe, <strong>Berlin</strong>, Deutschland<br />

Background. BKM120 is an oral pan-class I PI3K inhibitor targeting the<br />

PI3K/AKT/mTOR pathway which is commonly deregulated in cancer.<br />

The PI3K pathway is a key signal transduction system linking multiple<br />

oncogenes, tumor suppressors and receptor classes to essential cellular<br />

functions e.g. cell growth. Alterations of key components, like activating<br />

mutations of PIK3CA (the gene encoding the PI3K catalytic subunit)<br />

and loss of PTEN (phosphatase and the tensin homolog), trigger<br />

aberrant activation of the pathway signaling, leading to a modulation<br />

of different cell processes. BKM120 is an oral agent that showed potent<br />

antitumor activity in preclinical research and has demonstrated antiproliferative<br />

effects in endometrial carcinoma (EC) cell-lines and xenograft<br />

models.<br />

Current development. Most ECs showed dependency on PI3K pathway<br />

activation. Both PIK3CA and PTEN alterations are observed. Mutations<br />

in both genes lead to an activation of the PI3K pathway signaling<br />

in 26–36% and 26–59% of endometrioid EC, respectively, and in 5–21%<br />

and 0–11% of non-endometrioid EC. Thus, efficacy of BKM120 is currently<br />

investigated in a prospective multi-center, open-label, single arm,<br />

phase II study in patients with advanced, metastatic endometrial cancer.<br />

Adult patients with ECs whose disease progressed while on or after<br />

first-line antineoplastic treatment for advanced EC who have not been<br />

treated with any PI3K inhibitor are enrolled. After enrollment, PI3Kpathway<br />

activation status will be assessed, and defined as: PIK3CA mutation<br />

and/or PTEN mutation and/or PTEN-negative expression (


Abstracts<br />

our breast unit since 2003. For each patient an ITB gave two treatment<br />

recommendations: The first recommendation based on the results available<br />

from the sentinel node biopsy (ITB I). The second recommendation<br />

based on the results of the secondary axillary dissection (ITB II).<br />

We evaluated differences regarding the indication of chemotherapy (yes<br />

versus no), the type of adjuvant chemotherapy (conventional scheduled<br />

versus dose dense regimes) and the type of radiotherapy (whole breast<br />

irradiation with or without irradiation of regional lymph nodes).<br />

Results. 170 patients were enrolled. 133 had one and 28 had two tumor<br />

involved sentinel nodes. Comparing the two ITB recommendations for<br />

each patient we could demonstrate an overall difference in 33 (20%) patients.<br />

In 29 (17%) patients ITB II recommended a more intensive treatment<br />

i.e. dose dense chemotherapy and/or additional irradiation of the<br />

lymph nodes. In 4 patients (2.4%) a chemotherapy was recommended by<br />

ITB I but not by ITB II.<br />

Conclusion. Our results showed that a secondary ALND might have<br />

a strong impact on treatment recommendations of an ITB favouring<br />

more intensive adjuvant chemotherapy and/or irradiation.<br />

0200<br />

Carboplatin plus weekly Paclitaxel as an effective, non-anthracyclin-containing<br />

preoperative chemotherapy in triple negative<br />

breast cancer (TNBC)<br />

*L . Kahmann1 , C .R . Löhberg1 , M .G . Schrauder1 , M .R . Bani1 , C .M . Bayer1 ,<br />

O . Strahl1 , A . Hartmann2 , R . Schulz-Wendtlandt3 , E . Wenkel3 , P .A . Fasching1 ,<br />

M .W . Beckmann1 , M .P . Lux1 1 21 23 Frauenklinik des Universitätsklinikums Erlangen, Universitätsstraße - ,<br />

Deutschland, 2Pathologisches Institut des Universitätsklinikums Erlangen,<br />

Erlangen, Deutschland, 3Institut für diagnostische Radiologie des Universitätsklinikums<br />

Erlangen, Erlangen, Deutschland<br />

Objective. Despite substantial progresses in breast cancer therapy, patients<br />

with TNBC still remain a challenge. Pathological complete response<br />

(pCR) is one of the most important prognostic markers in preoperative<br />

setting of breast cancer treatment. Platinum-containing regimens<br />

have been included as a possible preoperative option for patients with<br />

TNBC into the recommendations of the AGO in 2011, due to increasing<br />

data showing a high degree of effectiveness. The aim of this retrospective<br />

analysis is to evaluate the pCR rate after preoperative chemotherapy<br />

with Carboplatin and Paclitaxel in the treatment patients with TNBC.<br />

Methods. 20 patients with TNBC received preoperative chemotherapy<br />

with six cycles of carboplatin (AUC 5), d1, in combination with paclitaxel<br />

(80 mg/m2), d1, 8, 15, q21d. Evaluation of clinical response was done<br />

after cycle three and six by palpation and mammography/ ultrasound.<br />

pCR was defined as no invasive cancer in the breast and axillary specimen<br />

after breast-conserving therapy/ breast ablation plus axillary dissection<br />

(pT0/pTis and pN0).<br />

Results. 15 of 20 patients received surgery (breast-conserving therapy/<br />

breast ablation plus axillary dissection). Clinical (cCR) and pCR were<br />

seen in 46% (n=7/15) and 60% (n=9/15), respectively. Histological assessment<br />

showed a general response of minimum SINN grade 2.The<br />

combination of carboplatin and paclitaxel was well tolerated except one<br />

peripheral polyneuropathy grade 3 (NCI-CTC).<br />

Conclusion. The combination of carboplatin (AUC 5), d1, and paclitaxel<br />

(80 mg/m2), d1, 8, 15, q21d, in the preoperative setting is a highly effective<br />

and well tolerated option for patients with TNBC. Final results are<br />

expected for December 2011 and will be demonstrated. Results of this<br />

retrospective analysis should be proofed in major prospective, randomised<br />

trials.<br />

74 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0201<br />

Whole gene expression profiling in patients with primary breast<br />

cancer<br />

*J . Aigner1 , K . Smetanay1 , M . Zapatka2 , B . Burwinkel1 , H . Junkermann1 ,<br />

F . Marme1 , H .P . Sinn1 , P . Lichter2 , C . Sohn1 , A . Schneeweiss1 1Universitätsklinik Heidelberg, Frauenklinik/NCT Gyn Onko, Heidelberg,<br />

Deutschland, 2Universität Heidelberg DKFZ, Biologie, Heidelberg, Deutschland<br />

Objective. Breast cancer is a heterogeneous disease in terms of therapeutic<br />

response and patients’ outcome. Gene expression analysis provides<br />

new classification systems on the molecular level which might be used<br />

to determine prognosis of outcome and prediction of response to specific<br />

therapies leading to a more individualized treatment for each patient.<br />

The aim of our program is to validate prospectively four gene expression<br />

signatures on our own platform which were either already commercially<br />

available or have been extensively tested within clinical trials.<br />

Material and methods. Since 11/2010 patients with primary invasive breast<br />

cancer received one additional core biopsy at diagnosis to perform<br />

a whole gene expression profiling and read out the expression of genes<br />

belonging to the signatures Intrinsic Signature (IS), Genomic Grade Index<br />

(GGI), Recurrence Score (RS) and Amsterdam Signature (AS). In a<br />

second step subtypes according to IS (luminal A, luminal B, HER2-enriched,<br />

basal-like), GGI (low, high), RS (low risk, intermediate risk, high<br />

risk) and AS (low risk, high risk) were correlated with the immunohistochemical<br />

determined subtypes according to the expression of estrogen<br />

receptor (ER), progesterone receptor (PgR), HER2 and Ki-67 (luminal<br />

A-like: ER and PgR positive (+), HER2 negative (−), Ki-67 14%; HER2like:<br />

ER and PgR−, HER2+; triple negative: ER and PgR and HER-) and<br />

the histological grade (G1–2, G3).<br />

Results. Until June 2011, 94 patients have been enrolled. 18 patients had<br />

to be excluded. 23 (30%) had tumor involved lymph nodes. Histological<br />

grade I, II and III was reported in 8 (11%), 41 (54%) and 27 (36%) patients.<br />

63 (83%) patients had a ER/PgR positive and 69 (91%) patients a<br />

HER2 negative breast cancer. 51 patients showed a Ki-67>14%. The concordance<br />

between subgroups according to immunohistochemistry and<br />

IS or GGI was 16% and 70%. Most G2 patients showed a low risk GGI.<br />

A validation of RS and AS with the commercial available tests is still in<br />

process.<br />

Conclusion. In our cohort of primary breast cancer, thus far, there is<br />

only partial overlap of subtypes according to immunohistochemistry<br />

and gene expression analyses. Gene expression signatures as prognostic<br />

or predictive markers have to be validated prospectively before they are<br />

used outside of clinical trials. Updated results will be presented at the<br />

meeting.<br />

0203<br />

A consecutive series of 12 heavily obese endometrial cancer<br />

patients treated by robotic laparoscopic surgery<br />

*Z . Maden1 , P . Kannisto1 , P . Harter1 , A . du Bois1 1Kliniken-Essen-Mitte, Gynäkologische Onkologie, Essen, Deutschland<br />

Objective. The robotic technique was introduced in <strong>February</strong> 2011 in<br />

our centre. We report here the first 12 consecutive cases of endometrial<br />

cancer.<br />

Methods. Surgery was performed by the SE da Vinci system without<br />

uterine manipulator but with four robot arms. All patients got perioperative<br />

antibiotics as well as low molecular heparin.<br />

Results. The mean BMI value was 40.6 and 33% of the patients had at<br />

least one former abdominal surgery. Mean blood loss for the robot procedures<br />

was 140 ml. The average skin-to-skin time was 222 minutes.<br />

The pressure controlled ventilation was used during anesthesia and the<br />

PEEP values were kept 5–7 mmHg. There was a preparedness for early<br />

intervention with cathecholamines. Ventilation was controlled by tran-


cutaneous CO2 monitoring, which has previously been shown to reduce<br />

the risk of respiratory acidosis significantly. The conversion rate to laparatomy<br />

was 8.3% (1/12 pts) due to multiple adhesions and intestinal injury.<br />

The only severe complication was observed in a patient with BMI 70.<br />

She had double dose heparine and experienced a heavy bleeding from<br />

vaginal cuff 16 days after da Vinci surgery. A laparatomy was performed<br />

and she suffered thereafter from a wound infection.<br />

Conclusion. Robotic assisted hysterectomy is a safe procedure and showed<br />

a considerably low rate of major complications in this morbidly<br />

obese group of endometrial cancer patients.<br />

0205<br />

Quality of life and therapy expectations of patients with recurrent<br />

platinum-sensitive ovarian cancer – a <strong>German</strong> substudy of<br />

the Calypso/AGO-Ovar 2.9 trial<br />

*K .H . Baumann1 , J . Sehouli2 , A . du Bois3 , D . Lubbe4 , P . Wimberger5 ,<br />

M .W . Beckmann6 , F . Hilpert7 , L .C . Hanker8 , A . Hasenburg9 , B . Richter10 ,<br />

S . Mahner11 , A . Burges11,12 , E . Pujade-Lauraine13 , U . Wagner1 1Universitätsklinikum Gießen und Marburg, Standort Marburg, Gynäkologie,<br />

Gyn . Endokrinologie und Onkologie, Marburg, Deutschland, 2Charite – University Medicine of <strong>Berlin</strong>, Gynecology, <strong>Berlin</strong>, Deutschland, 3Hospital Essen Mitte, Gynecology, Essen, Deutschland, 4University of Marburg, 4Co ordinating Centre for Clinical Trials Marburg, Marburg, Deutschland, 5Uni versity of Duisburg-Essen, Gynecology and Obstetrics, Essen, Deutschland,<br />

6University of Erlangen, Gynecology and Obstetrics, Erlangen, Deutschland,<br />

7University Hospital of Kiel, Gynecology and Obstetrics, Kiel, Deutschland,<br />

8University of Frankfurt, Gynecology and Obstetrics, Frankfurt am<br />

Main, Deutschland, 9University of Freiburg, Gynecology and Obstetrics,<br />

Freiburg, Deutschland, 10Elblandklinikum, Gynecology and Obstetrics,<br />

Radebeul, Deutschland, 11University Medical Center Hamburg-Eppendorf,<br />

Gynecology, Hamburg, Deutschland, 12Ludwig-Maximilians-University, Gynecology and Obstetrics, München, Deutschland, 13Hopital Hotel Dieu,<br />

Paris, Frankreich<br />

Background. In patients receiving radiotherapy, correlations between<br />

patients’ expectation regarding healing at start of therapy and quality<br />

of life (QoL) have been reported. So far, in recurrent platinum-sensitive<br />

ovarian cancer little is known about patients’ expectation undergoing<br />

reinduction chemotherapy.<br />

Objective. In this <strong>German</strong> substudy of the international CALYPSO/<br />

AGO-Ovar 2.9 trial (JCO 28, 3323-9) patients’ subjective assessments of<br />

success of therapy, and the relationship to QoL were evaluated. In the<br />

CALYPSO/AGO-Ovar 2.9 trial patients with recurrent platinum sensitive<br />

ovarian cancer were randomized to receive carboplatin-paclitaxel<br />

or carboplatin-pegylated liposomal doxorubicin chemotherapy. Systemic<br />

treatment consisted of 6–9 cycles carboplatin and paclitaxel (TC)<br />

or carboplatin and pegylated liposomal doxorubicin (CD). At baseline<br />

registration before randomization and at the end of therapy patients<br />

completed the QoL questionaires (FACT-O, EORTC QLQ C-30 and<br />

OV-28) and an expectations checklist (J Royal Soc Med 93, 621–8) with<br />

the scores: “healing expectation”; “tumor and symptom control”; “pain<br />

and emotional control”.<br />

Results. Of 299 patients enrolled in <strong>German</strong>y, 97 patients completed the<br />

expectation checklist (50 in the TC arm; 47 in the CD arm). At baseline,<br />

44 (TC) and 45 (CD) patients stated a positive “healing expectation”.<br />

The subjective assessment of the patients at the end of therapy showed,<br />

that 29 (CD) and 37 (TC) patients found their healing expectations fulfilled.<br />

Only one of the scales of the expectations checklist (“pain and<br />

emotional control”) revealed a significant correlation with the QoL<br />

questionnaires. Results of the QoL questionnaires and the expectations<br />

checklist did not differ significantly between the treatment groups.<br />

Conclusion. “Healing” was stated most frequently as expectation and assessment<br />

of success in patients with recurrent ovarian cancer, followed<br />

by the other categories. QoL did not differ significantly between treat-<br />

ment groups and patients with or without healing expectations, only<br />

the expectation category “pain and emotional control” revealed some<br />

correlation with the QoL questionnaires.<br />

0224<br />

Superparamagnetic nanoparticles for magnetic particle imaging<br />

in breast cancer sentinel lymph node detection<br />

*D . Finas1 , K . Baumann1 , B . Ruhland1 , K . Heinrich1 , K . Lüdtke-Buzug1 , K . Diedrich1<br />

, T . Buzug1 1Universität zu Lübeck, Klinik für Frauenheilkunde und Geburtshilfe,<br />

Lübeck, Deutschland<br />

Introduction. Radical axillary lymphonodectomy is associated with<br />

high morbidity and significant loss of QoL. But, the exploration of the<br />

axillary lymph nodes is part of the surgical staging in breast cancer.<br />

The adverse effects decreased since the introduction of the sentinel lymphonodectomy<br />

(SNLB), were dyes and radio nuclides are injected. Super<br />

paramagnetic iron oxide nano particles (SPIOs) could replace these<br />

marker substances. Through the magnetic particle imaging (MPI), a<br />

3D-imaging and distinct localization of SPIOs can be achieved in SNLB.<br />

Qualitative and quantitative enrichment of SPIOs in the axillary lymphatic<br />

tissue is unexplored until now.<br />

Methods. Within a healthy mouse model and than in a tumor bearing<br />

mouse model with metastatic axillary lymph nodes we prove the principle<br />

of SNLB by MPI. Axillary and environmental tissues are analyzed<br />

with different techniques: histology, Prussian blue staining, electron<br />

microscopy, atomic absorption spectrometry and MPI spectrometry.<br />

Nanoparticles are widely discussed as environmental toxins. Therefore,<br />

we will extract the inoculated SPIOs from all organs and explore them<br />

whether there are any SPIOs.<br />

Results. We aim to show that SPIOs and the MPI technique are effective<br />

to be used as SNLB tracer and finder as a new SNLB technique. This will<br />

be less complex and incriminating for the patient and the staff. A new<br />

MPI hand probe with unilateral solenoid arrangement designed for use<br />

in the operating theater is under construction. Therewith the sentinel<br />

lymph node detection can be easily performed after intra operative tracer<br />

application.<br />

Conclusion. Intra operative 3D-imaging with the MPI hand probe facilitates<br />

the axillary SNL detection and moreover makes it more precise.<br />

Through the avoidance of intensive surgical exploration of the axilla the<br />

morbidity will be dramatically reduced. The tracer for MPI is easy to<br />

obtain. This makes the method accessible to all patients. The concept of<br />

SNLB by MPI can be applied in principle in all solid tumors.<br />

Supported by the <strong>German</strong> Federal Ministry of Education and Research<br />

(BMBF Grant number 01EZ0912). Part of the University Research Program<br />

Imaging of Disease Processes, University of Lübeck.<br />

Abstract withdrawn<br />

0228<br />

Staging accuracy of gynaecological cancers with endorectal coil<br />

MRI<br />

*K . Brocker1 , C . Alt1 , C . Sohn1 , M . Eichbaum1 , P . Hallscheidt1 1Universität Heidelberg, Frauenklinik, Heidelberg, Deutschland<br />

Objective. Endometrial, cervical and vulvar cancer are frequent gynaecological<br />

cancers. The aim was to evaluate staging accuracy of MRI in<br />

patients with primary endometrial, cervical or vulvar cancer using MRI<br />

with an endorectal coil.<br />

Material and methods. Patients with histologically proven cancers received<br />

1.5T MRI with endorectal surface coil (eMRI) before surgery.<br />

Performed sequences: sagittal, axial and coronal T2w turbo spin echo<br />

(TSE), axial T1 incoherent gradient echo (gradient spoiled) 2D fat saturated<br />

(fs), sagittal T1 incoherent gradient echo (gradient spoiled) 3D<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

75


Abstracts<br />

with/without contrast enhancement (CE), axial T1 TSE fs CE. eMRI staging<br />

was compared to histopathological results.<br />

Results. 19 patients with vulvar cancer, 15/19 had primary surgery. 10 of<br />

15 patients (pts) underwent eMRI, 5 underwent MRI without (w/o) endorectal<br />

surface coil due to eMRI contraindications. Histopathological<br />

result was: 2 pts with stage T1a, 8 pts T1b, 4 pts T2 and one patient with<br />

stage T3. Overall MRI accuracy was 53% (8/15), eMRI was 60% (6/10) and<br />

MRI w/o endorectal coil was 40% (2/5). The urethra was histologically<br />

affected in 5 cases, vagina in 3 cases, perineum and anus in 2 cases each.<br />

Overall agreement of invasion of surrounding structures was 75% (9/12).<br />

Histological proven lymph node (LN) affection in 7 of 15 pts, correctly<br />

diagnosed with eMRI in 71% (5/7). If LNs were not affected, MRI staged<br />

correctly N0. 33 pts with endometrial cancer, 21/33 with primary surgery.<br />

8 pts had histological stage T1a, 10 pts T1b, 2 pts T2b, one patient T3a.<br />

Overall eMRI staging accuracy of local tumor spread was 71% (15/21). In<br />

lower tumor stage eMRI correctly diagnosed stage T1a in 6 of 8 pts and<br />

T1b in 8 of 10 pts. In 2 cases eMRI overstaged, in 2 cases eMRI understaged.<br />

In only one patient LN were positive; correctly diagnosed by eMRI.<br />

44 patients with cervical cancer received primary surgery of which 2<br />

were inoperable. Histological results were 8/44 Cis, 3/44 T1a1, 2/44 T1a2,<br />

15/44 T1b1, 1/44 T1b2, 0/44 T2a, 12/44 T2b, 0/44 T3 and 1/44 with T4 stage.<br />

In 43% eMRI staged correctly, clinical examination staged correct in<br />

47.6%. eMRI sensitivity of deciding between tumours up to T2a or a size<br />

beyond was 92.3%, in clinical examination 38.5%. Uterine infiltration<br />

was detected in 100% by eMRI.<br />

Conclusion. eMRI presented high staging accuracy in lower endometrial<br />

tumour stage. In cervical cancer eMRI proved a reliable tool for tumours<br />

greater FIGO IIa improving the assessment of surround tumour<br />

infiltration. In lower staged cases more practice and technical development<br />

is needed. In vulvar cancer eMRI is helpful for pretherapeutic<br />

planning, especially for urethral involvement and lymph node affection.<br />

eMRI is a useful supplement in clinical gynaecological oncology<br />

treatment planning.<br />

0236<br />

Targeting triple negative breast cancer through the luteinizing<br />

hormone-releasing hormone receptor<br />

*S . Seitz1,2 , A .V . Schally2 , A . Treszl2 , F . Weber3 , M . Mögele1 , A . Machleidt1 ,<br />

O . Ortmann1 , S . Buchholz1,2 1Universität Regensburg, Frauenheilkunde, Regensburg, Deutschland,<br />

2University of Miami, endocrine, polypeptide and cancer institute, Miami,<br />

Deutschland, 3Universität, Pathologie, Regensburg, Deutschland<br />

Introduction. Receptors for luteinizing hormone-releasing hormone receptor<br />

(LHRH-R) are expressed in >50% of human breast cancers. For<br />

our knowledge to date the expression of LHRH-R in the distinct subtype<br />

of triple negative breast cancer (TNBC) was not evaluated. Systemic<br />

treatment options for TNBC are limited to chemotherapy. New structures<br />

for targeted therapy would be very favourable. AN-152 [AEZS-108] is<br />

a LHRH-analog conjugated to doxorubicin. AN-152 is targeted through<br />

the peptide moiety to the LHRH-R. In this study we investigated the<br />

expression of the LHRH-R on TNBC samples and the effect of AN-152<br />

on tumor growth inhibition of AN-152 in an in vivo model.<br />

Material and method. For the in vivo model we used the TNBC cell lines<br />

MDA-MB-231 and HCC 1806. The cell lines were checked for LHRHreceptor<br />

expression by RT-PCR. Tumors grown from these cell lines<br />

were xenotransplanted into nude mice subcutaneously. Animals were<br />

randomised into three groups receiving solvent only (control), AN-152<br />

(2.5 µmol/kg d 1, 7, 14 i.v.) or Doxorubicin (2.5 µmol/kg d 1, 7, 14 i.v.).<br />

The experiment ended on day 28. The expression of LHRH-R on tumor<br />

samples form patients with TNBC (n=69) was evaluated by immunhistochemistry.<br />

Results. The LHRH-R was expressed in both cell lines on mRNA level.<br />

In the animal experiment with the cell line MDA-MB-231 animals treated<br />

with AN-152 showed a significant (p


matic and nuclear compartmentalization of the oncogene Akt and the<br />

tumor suppressor mTOR are integrated in negative regulatory feedback<br />

loops. The macrolide derivative of rapamycin RAD001 (everolimus) is<br />

an inhibitor of the serine-threonine kinase mTOR, and was developed<br />

as an anti-proliferative and anticancer agent. However, inhibition of<br />

mTOR signaling by RAD001 leads to increased Akt activation through<br />

phosphorylation. Akt activation abrogates RAD001-induced antiproliferative<br />

effects and results in RAD001 resistance.<br />

Chloroquine is a 4-alkylamino substituted quinoline, an effective chemosensitizer<br />

when used in combination with PI3K/Akt inhibitors and<br />

mediated breast cancer protective effects. Using MCF7 breast cancer<br />

cells our aim was to test if Chloroquine could inhibit tumor growth<br />

through PI3K signaling and overcome RAD001-induced Akt activation.<br />

Chloroquine and RAD001 inhibited phospho-mTOR and its<br />

downstream target gene S6K1, especially in the nucleus. Importantly,<br />

Chloroquine blocked the RAD001-induced phosphorylation of nuclear<br />

phospho-Akt. Additionally, Chloroquine and RAD001 induced G1 cell<br />

cycle arrest, reduced MCF7 breast cancer cell proliferation on a collagen<br />

matrix and disturbed formation of mammospheres. Furthermore,<br />

Chloroquine and RAD001 together significantly reduced mammary<br />

tumor growth in a murine xenograft model.<br />

Our data show that Chloroquine exerts its anti-cancer effects through<br />

modifications of the PI3K/Akt/mTOR pathway involving the nucleus<br />

where cellular compartmentalization of Akt and mTOR might play a<br />

crucial role. Treatment of breast cancer patients with Chloroquine in<br />

combination with RAD001 may be important for overcoming RAD001<br />

resistance.<br />

0243<br />

Prognostic role of lymph-node metastases in vulvar cancer and<br />

implications for adjuvant radiotherapy<br />

*L . Woelber1 , C . Eulenburg2 , M . Choschzick3 , D . Rohsbach1 , F . Gieseking1 ,<br />

A . Kruell4 , C . Petersen4 , F . Jaenicke1 , S . Mahner1 1University Medical Center Hamburg-Eppendorf, Department of Gynecology,<br />

Hamburg, Deutschland, 2University Medical Center Hamburg-Eppendorf,<br />

Department of Medical Biometry and Epidemiology, Hamburg,<br />

Deutschland, 3University Medical Center Hamburg-Eppendorf, Institute of<br />

Pathology, Hamburg, Deutschland, 4University Medical Center Hamburg-<br />

Eppendorf, Department of Radiotherapy and Radio-Oncology, Hamburg,<br />

Deutschland<br />

Background. Lymph-node metastases are the most important prognostic<br />

factor for recurrence and survival in vulvar cancer. However, conclusions<br />

regarding the impact of the number of positive nodes on survival<br />

are inconsistent and so are recommendations when to apply adjuvant<br />

radiotherapy to the groins/pelvis.<br />

Methods. One-hundred-and-fifty-seven consecutive patients with primary<br />

squamous cell cancer of the vulva treated at our center were analyzed.<br />

All patients underwent primary surgery by triple incision resulting<br />

in complete tumor resection.<br />

Results. Median age was 61 years; 49 patients (31%) had lymph-node metastases;<br />

21 patients had 1, 13 had 2 and 15 had >2 positive lymph-nodes.<br />

The risk of lymph-node metastases increased with age, greater tumor<br />

size, deeper invasion and higher tumor grade. 32% of the patients received<br />

adjuvant radiotherapy. Median follow-up was 36 months; 23 patients<br />

(14.6%) developed disease-recurrence (61% vulva, 35% groins and<br />

4% both). Compared to node-negative patients, survival in all nodepositive<br />

patients was significantly impaired with no evidence of disease<br />

after 2 years in 88% of node negative patients and 60%, 43% and 29% in<br />

patients with one, 2 and >2 affected nodes, respectively, p


Abstracts<br />

0247<br />

Prognostic impact of circulating tumor cells and their HER2<br />

status assessed with two detection methods in patients with<br />

metastatic breast cancer<br />

*T . Fehm1 , B . Rack2 , S . Riethdorf3 , W . Janni4 , P . Fasching5 , E . Solomayer6 ,<br />

B . Aktas7 , S . Kasimir-Bauer7 , K . Pantel3 , V . Müller8 1 2 Universitätsklinikum, Frauenklinik, Tübingen, Deutschland, Ludwig-Maximilians-Universität,<br />

Frauenklinik, München, Deutschland, 3Universitäts klinikum Eppendorf, Institut für Tumorbiologie, Hamburg, Deutschland,<br />

4Heinrich-Heine-Universität, Frauenklinik, Düsseldorf, Deutschland,<br />

5 6 Universitätsklinikum, Frauenklinik, Erlangen, Deutschland, Universitätsklinikum,<br />

Frauenklinik, Homburg/Saar, Deutschland, 7Universitätsklinikum, Frauenklinik, Essen, Deutschland, 8Universitätsklinikum Hamburg-Eppendorf,<br />

Klinik für Gynäkologie, Hamburg, Deutschland<br />

Purpose. Circulating tumor cells (CTC) can be detected in the peripheral<br />

blood of 30–60% of metastatic breast cancer patients. However, the<br />

optimal method for CTC detection is not clear so far. Therefore, we examined<br />

the prognostic impact of two methods for CTC detection in a<br />

prospective multicenter study.<br />

Methods. A total of 254 patients with metastatic breast cancer from nine<br />

<strong>German</strong> breast centers were enrolled in this study. CTC detection and<br />

HER2 status on CTC was examined at the time of tumor progression<br />

using both the FDA-approved CellSearch® assay based on immunocytochemistry<br />

and the RNA-based AdnaTest Breast <strong>Cancer</strong>TM.<br />

Results. Using the CellSearch assay, 122 of 245 (50%) patients had ≥5<br />

CTC, and HER2-positive CTC were observed in 50 (41%) of these patients.<br />

Ninety of 229 (39%) patients were CTC positive using AdnaTest,<br />

and HER2 positivity rate was 47% (42 of 90). The rate of breast cancer<br />

patients with HER2-negative primary tumors but HER2-positive<br />

CTC was 32% (25 of 78) and 49% (28 of 57) using the CellSearch assay<br />

and AdnaTest, respectively. Detection of CTC was not correlated with<br />

progression free survival for both methods. Patients with positive CTC<br />

detected by Cell Search Assay showed shorter overall survival (14.6 mo.<br />

versus 20.1 mo.; p


0273<br />

Resection of hepatic metastases from breast cancer imbedded<br />

in a multimodal treatment concept – can it improve prognosis? A<br />

systematic review of the literature<br />

*K . Smetanay1 , J . Bodem1 , P . Schemmer2 , K . Jensen3 , J . Rom1 , A . Schneeweiss1 ,<br />

C . Sohn1 , M . Eichbaum1 1Universitätsklinikum Heidelberg, Frauenklinik/NCT Gynäkologische Onkologie,<br />

Heidelberg, Deutschland, 2Universitätsklinikum Heidelberg, Klinik für<br />

Allgemein-, Viszeral- und Transplantationschirurgie, Heidelberg, Deutschland,<br />

3Universitätsklinikum Heidelberg, Institut für Medizinische Biometrie<br />

und Informatik, Heidelberg, Deutschland<br />

Introduction. For many patients suffering from metastatic breast cancer<br />

(MBC), surgical treatment of liver metastases is limited or not beneficial<br />

due to the systemic, multitopic character of the disease. Instead, for<br />

patients with isolated hepatic metastases from colorectal cancer, liver<br />

resection is a common procedure with a 5-year-survival of around 40%.<br />

Previous retrospective studies, however, demonstrated that liver resection<br />

for selected patients with MBC limited to the liver could prolong the<br />

survival rate to a greater extent than only systemic treatment. A 5-yearsurvival<br />

for resectable patients ranged from 18 to 59 %. The aim of this<br />

systematic overview is to clarify the survival and morbidity of patients<br />

with an additional surgical treatment within a multimodal concept.<br />

Methods. We performed a systematic overview of all peer-reviewed published<br />

trials and studies documented in the PubMed-, MEDLINE and<br />

EMBASE-database. Furthermore, a detailed search within published<br />

trials in the Cochrane Library was undertaken. Included were all retrospective<br />

and prospective clinical trials published on patients with MBC<br />

treated with surgery due to liver metastases. Primary endpoint of this<br />

systematic review was overall survival (OS). Secondary endpoint was<br />

peri- and postoperative morbidity.<br />

Results. We analyzed 36 studies which were published between 1991 and<br />

2010. From all included trials n=1428 patients had liver metastases from<br />

breast cancer and n=803 patients were treated by surgery. In most of the<br />

cases a major resection of the liver (3 or more than 3 segments) was performed.<br />

The mean disease-free interval comprised 44 months (range:<br />

34–70 months). After surgery, patients with a R0-resection showed a median<br />

survival of 44 months (range: 27–73 month). The median OS after<br />

5 years was described by n=393 patients with 40%. Complications were<br />

reported on 95 patients. The most common local complications included<br />

infected edema (n=12) and biliary leckage (n=12), while pleural effusion<br />

(n=8) was the main systemic complication. The mean hospitalization<br />

time was 9 days.<br />

Conclusion. This systematic overview should help to advise patients with<br />

hepatic MBC. Considering selected patients, the surgical treatment is an<br />

additional option within a multimodal concept as it can prolong survival<br />

with a relatively low morbidity. The aim of further studies should be to<br />

identify prognostic factors for a more individual risk-benefit-profile of<br />

each patient.<br />

0280<br />

Survial analyses in triple negative breast cancer patients: a<br />

comparison between neoadjuvant and adjuvant chemotherapy<br />

strategies<br />

*G . Pfeiler1 , C . Staudigl1 , A . Brunner2 , C . Singer1 , R . Königsberg3 1Medical University of Vienna, Department of Gynecology and Gynecologic<br />

Oncology, Vienna, Österreich, 2Landesklinikum Thermenregion Mödling,<br />

Department of Obstetrics and Gynaecology, Mödling, Österreich, 3Applied <strong>Cancer</strong> Research – Institution for Translational Research Vienna (ACR-ITR<br />

VIEnna)/CEADDP, Vienna, Österreich<br />

Background. The primary goal of neoadjuvant treatment in breast cancer<br />

is to downstage breast cancer tumor size thereby increasing the breast<br />

conserving operation rate. Regarding triple negative breast cancer<br />

(TNBC), there is a lack of evidence describing and comparing survival<br />

parameters of neoadjuvant and adjuvant treated TNBC patients.<br />

Methods. Between 1998 and 2006 pathologic and clinical data of 220<br />

TNBC patients were retrospectively analysed of whom Eighty-two<br />

were matched regarding neoadjuvant and adjuvant treatment. Baseline<br />

demographic and tumor characteristics were compared between the<br />

two matched TNBC patient cohorts using a Students-t test for means<br />

and χ2-test for frequencies.Kaplan-Meier plots for disease free survival<br />

(DFS), distant disease free survival (DDFS), loco-regional disease free<br />

(LDFS) and overall survival (OS) were used for each comparison. All<br />

p values are two sided and a value of


Abstracts<br />

rioration. In conclusion, the monoclonal rat antibody directed against<br />

BSPII is a powerful tool in treating experimental skeletal metastasis<br />

and warrants further development.<br />

0287<br />

Efficacy of platinum/taxane-based chemotherapy in elderly with<br />

advanced ovarian cancer: explorative analysis of three phase III<br />

trials from the AGO Study Group<br />

*A .M . Hempel1 , P . Harter2 , A . Strauss1 , J . Hedderich3 , E . Pujade-Lauraine4 ,<br />

A . du Bois2 , J . Pfisterer5 , F . Hilpert1 1Universitätsklinikum Schleswig-Holstein Campus Kiel, Klinik für Gynäkologie<br />

und Geburtshilfe, Kiel, Deutschland, 2Kliniken Essen-Mitte, Gynäkologie<br />

und Gynäkologische Onkologie, Essen, Deutschland, 3Universitätsklinikum Schleswig-Holstein Campus Kiel, Institut für Medizinische Informatik und<br />

Statistik, Kiel, Deutschland, 4Hôpital Hôtel-Dieu, Oncology, Paris, Frankreich,<br />

5Städtisches Klinikum Solingen, Gynäkologie und Gynäkologische<br />

Onkologie, Solingen, Deutschland<br />

Background. Age is a negative prognostic factor for survival in ovarian<br />

cancer (OC). We analysed efficacy and prognostic factors in patients<br />

≥70 years of age treated with platinum-based 1st-line chemotherapy.<br />

Methods. Exploratory analysis of 3 prospective randomized trials<br />

(AGO-OVAR 3, 5, 7) investigating platinum/taxane-based chemotherapy<br />

in OC FIGO IIb–IV conducted between 1995 and 2002. Datasets<br />

from each trial were merged into a combined meta-dataset. Patients<br />

≥70 years of age at randomization who had received at least one cycle<br />

of the assigned treatment were analysed for progression-free (PFS) and<br />

overall survival (OAS) by Kaplan Meier method and prognostic factors<br />

by cox regression analysis.<br />

Results. Out of 3333 patients 359 (10.8%) were ≥70 years of age and eligible.<br />

Age was an independent prognostic factor for survival: Median PFS<br />

was 23.8 and 18.4 months (p


0329<br />

PRÄFERENZ STUDY – Patients’ individual choice for oral vs.<br />

intravenous Treosulfan in elderly patients with ovarian cancer:<br />

analysis of tolerability – for the North-Eastern <strong>German</strong> Society of<br />

Gynecological Oncology (NOGGO) study group<br />

*S . Mahner1 , P . Harter2 , S . Fuxius3 , L .C . Hanker4 , L . Müller4,5 , P . Klare6 , E . Heidrich-Lorsbach7<br />

, J . Sehouli8 1Universitätsklinikum HH-Eppendorf, Gynäkologie, Hamburg, Deutschland,<br />

2 3 Kliniken Essen-Mitte, Essen, Deutschland, Onkologische Schwerpunktpraxis<br />

Heidelberg, Heidelberg, Deutschland, 4University <strong>Cancer</strong> Center Frankfurt,<br />

Frankfurt, Deutschland, 5Onkologische Schwerpunktpraxis Leer, Leer,<br />

Deutschland, 6Praxisklinik Krebsheilkunde für Frauen, <strong>Berlin</strong>, Deutschland,<br />

7 8 Alcedis GmbH, Gießen, Deutschland, Charite University Medicine Campus<br />

Virchow, Gynecology and Gynecologic Oncology, <strong>Berlin</strong>, Deutschland<br />

Background and aims. There is an increasing interest in oral drug administration<br />

in oncology. Treosulfan is effective as oral (p.o.) and intravenous<br />

(i.v.) formulation for recurrent ovarian carcinoma. Primary<br />

aim of this study was to explore individual preference and compliance<br />

of elderly patients (≥65 years) for p.o. or i.v.-treosulfan. Secondary aims<br />

were to evaluate toxicity, response and survival. We present an interim<br />

analysis of patient’s characteristics and treatment choice, compliance of<br />

the treatment and toxicities for 102 included patients.<br />

Methods. Patients with platinum resistant or refractory ovarian cancer<br />

had free choice of treosulfan i.v. (7000 mg/m2 d1, qd29) or p.o. (600 mg/<br />

m2 d1-28, qd56) for a maximum of 12 cycles (i.v.) or 12 months (p.o.).<br />

Indecisive patients were randomized. Toxicity was evaluated according<br />

to the NCI-CTC version 2.0.<br />

Results. 102 recruited patients completed therapy at the time of this analysis<br />

(median age 72 years, range 65–87). 84 patients chose i.v. and 14<br />

p.o., 3 were randomized to i.v and 1 to p.o. Median ECOG was 1 (n=0–2),<br />

and median number of prior chemotherapy-regimens was 3 (n=1–6). In<br />

total, 351 cycles of chemotherapy (n=1–12, median: 3) were administered.<br />

Most common hematological toxicites (grade 3/4) were thrombopenia<br />

(12.7%), leukopenia (11.8%) and anemia (3.9%). Most frequent non-hematological<br />

toxicities (grade 3/4) were fatigue (4.9%) and constipation<br />

(6.9%).<br />

Conclusions. Treosulfan therapy was generally well tolerated despite<br />

heavy pretreatment in most patients. As nearly 82% of patients at this<br />

interim analysis chose i.v.-treosulfan there seems to be an individual<br />

preference for i.v.-administrations in elderly patients with recurrent<br />

ovarian cancer.<br />

0330<br />

Quality of life and sexuality in patients with borderline tumors of<br />

the ovary (a substudy of the ROBOT-Study of the AGO-Ovar)<br />

*A . Hasenburg1 , J . Farthmann1 , M . Weil1 , C . Fotopoulou2 , N . Ewald-Riegler3 ,<br />

O . du Bois3 , F . Trillsch4 , S . Mahner4 , H .-G . Strauß5 , P . Wimberger6 , A . du Bois7 1 2 Universitätsklinik, Frauenklinik, Freiburg, Deutschland, Charité, Frauenklinik,<br />

<strong>Berlin</strong>, Deutschland, 3Horst-Schmidt-Kliniken, Frauenklinik, Wiesbaden,<br />

Deutschland, 4Universitätsklinik, Frauenklinik, Hamburg, Deutschland,<br />

5 6 Universitätsklinik, Frauenklinik, Halle/ Saale, Deutschland, Universitätsklinik,<br />

Frauenklinik, Essen, Deutschland, 7Kliniken Essen Mitte, Frauenklinik,<br />

Essen, Deutschland<br />

Background and aims. Being sexually active may be an important aspect<br />

of quality of life (QoL). Both diagnosis itself and therapy of borderline<br />

tumors of the ovary (BOT) including surgical bilateral salpingo-oophorectomy<br />

could have an impact on quality of life (QoL) and sexual<br />

function. Therefore, we evaluated the influence of disease and surgical<br />

treatment on QoL including sexuality. Treatment impact on QoL and<br />

sexuality of patients with borderline tumors were evaluated with questionnaires.<br />

Methods. The presented study is a substudy of the ROBOT-study of the<br />

AGO Study Group. ROBOT is a pattern of care study, in which 1237 patients<br />

diagnosed with BOT between 1998 and 2008 in 27 institutions were<br />

included. 111 patients from 7 gyneco-oncological centres in <strong>German</strong>y<br />

were evaluated with three different questionnaires (EORTC QoL-C30<br />

and SAQ, as well as a self-made questionnaire designed for this purpose).<br />

With these tools the impact of the different therapeutic strategies on<br />

QoL and sexual function and pleasure was evaluated.<br />

Results. Of the 111 patients (mean age 53 years) 55 were sexually active<br />

(mean age 44 years), whereas 51 were not (mean age 62 years). 5 patients<br />

did not answer this question. The mean value of the overall quality of<br />

life was 5.42 (0 meaning low quality, 7 high QoL). Asked about the subjective<br />

state of health, the mean score was 5.19 (0 meaning impaired status<br />

of health, 7 high status of health). Those patients (n=55) who were<br />

sexually active had a mean score of pleasure of 7.34 (ranging from 0 to<br />

18, a low score representing low pleasure). 28 patients were able to have<br />

an orgasm always with every intercourse or almost always without greater<br />

difficulty, 24 patients had small or moderate problems to obtain an<br />

orgasm, 5 patients almost never or never reached an orgasm.<br />

Conclusions. Overall sexual function and QoL were quite high, but only<br />

about half of the patients were sexually active at the time of our survey.<br />

Those patients who were sexually active were younger than those who<br />

were not. As patients with BOT have a very good overall survival, the<br />

long-term impact on QoL and sexual function needs special attention.<br />

0343<br />

Therapeutic genes delivered by targeted AAV9-vectors inhibit<br />

tumor growth in breast cancer in vivo<br />

*S . Michelfelder1 , A . Hunger1 , E . Koziolek2 , M . Kaul2 , J . Kleinschmidt3 ,<br />

M . Trepel1 1Universitätsklinikum Hamburg Eppendorf, Hubertus Wald Tumorzentrum<br />

und Abteilung für Hämatologie und Onkologie, Hamburg, Djibouti, 2Uni versitätsklinikum Hamburg Eppendorf, Klinik und Poliklinik für Diagnostische<br />

und Interventionelle Radiologie, Hamburg, Deutschland, 3Deutsches Krebsforschungszentrum, Heidelberg, Deutschland<br />

Introduction. Targeted gene therapy is a potential means to systemically<br />

treat cancer. Vectors derived from adeno-associated virus serotype-9<br />

(AAV9) are particularly attractive due to their high transduction efficiency<br />

and their excellent safety profile, but their tropism is unspecific.<br />

Here, we report a combined approach to target therapeutic genes to<br />

disseminated tumors by incorporation of tumor specific peptides into<br />

the viral capsid and microRNA (miR)-regulated gene expression in a<br />

mouse model for multifocal breast cancer.<br />

Methods. Targeted AAV9 vectors harbouring a mir1-d binding domain<br />

and luciferase or an HSV-tk gene (SR39) displaying a breast cancer-targeted<br />

peptide selected from random AAV display libraries were<br />

established. Vectors were applied intravenously to PymT mice bearing<br />

palpable breast tumors. In vivo transduction of rAAV-luciferase was<br />

determined by bioluminescence imaging (BLI) and single organ transduction<br />

was analyzed by luminometry. Gancyclovir (GCV) treatment<br />

was initiated four days after application of SR39 vectors. Therapeutic efficiency<br />

and possible side effects of suicide gene therapy was assessed by<br />

tumor growth, histology and magnetic resonance tomography (MRT)<br />

analysis.<br />

Results. After systemic vector injection, AAV-ESG-mir1-d luciferase<br />

vectors mediated strong gene expression in tumor tissue while, compared<br />

to wild type vectors, expression decreased in almost all control<br />

tissues including heart and liver. Suicide gene treatment significantly<br />

inhibited tumor growth after one single vector administration and eight<br />

cycles of GCV treatment [tumor volume 0.51±0.12 ×1000 mm3 treated<br />

(n=8) vs. 3.4±0.81 ×1000 mm3 control group (n=10)]. Treatment response<br />

was further validated by MRT.<br />

Conclusions. Tumor-specific gene delivery can be realized by insertion<br />

of targeting peptides into putative receptor-binding capsid regions of<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

81


Abstracts<br />

AAV9 and microRNA-regulated transgene expression. Systemic HSVtk<br />

suicide gene transfer inhibits progression of growth of multifocal<br />

tumors in vivo, while apparent side effects do not occur. This demonstrates<br />

the feasibility of targeted AAV vectors as promising candidate<br />

for therapeutic application in disseminated cancer.<br />

0358<br />

Radiation-related quality of life parameters after targeted<br />

intraoperative radiotherapy versus whole breast radiotherapy<br />

in patients with breast cancer: Results from the randomized<br />

phase III trial TARGIT-A<br />

*G . Welzel1 , A . Boch1 , E . Blank1 , U . Kraus-Tiefenbacher1 , A . Keller1 , B . Hermann2<br />

, M . Sütterlin3 , F . Wenz1 1Universitätsmedizin Mannheim, Universität Heidelberg, Klinik für<br />

Strahlentherapie und Radioonkologie, Mannheim, Deutschland, 2Klinikum Hanau GmbH, Klinik für Radioonkologie und Strahlentherapie, Hanau,<br />

Deutschland, 3Universitätsmedizin Mannheim, Universität Heidelberg, Universitäts-Frauenklinik,<br />

Mannheim, Deutschland<br />

Purpose. In the multicenter phase III trial TARGIT-A women with early<br />

breast cancer were randomly treated either with targeted intraoperative<br />

radiotherapy (IORT, 20 Gy) during breast-conserving surgery or whole<br />

breast radiotherapy (WBRT, 56 Gy). In presence of risk factors, postoperative<br />

WBRT (46–50/2 Gy) was added after IORT. Initial results show<br />

non-inferiority of IORT and WBRT in terms of local recurrence and<br />

toxicity (Vaidya et al. Lancet 2010; 376: 91–102). Here, we assess radiation-related<br />

quality of life parameters from 123 women of a single centre<br />

from the phase III trial TARGIT-A.<br />

Patients and methods. Radiation-related quality of life was collected<br />

using two validated questionnaires of the EORTC (QLQ-C30, QLQ-<br />

BR23). In addition, fatigue, anxiety, depression, self-esteem and body<br />

image parameters were controlled. The response rate was 72% (n=88).<br />

Forty-six patients were randomized to IORT. Of them, 16 patients were<br />

postoperatively treated with additional WBRT, 5 patients did not receive<br />

IORT due to technical problems: 4 patients were treated with WBRT, 1<br />

patient refused WBRT. The median age at the time of TARGIT-A entry<br />

was 65 years (range: 47–84). With a median follow-up time of 25 months<br />

(range: 9–94), all patients were disease-free at the time of the survey.<br />

Results. IORT patients reported less pain, breast and arm symptoms and<br />

better role functioning as compared to WBRT patients (mean ± standard<br />

deviation: 21.3±33.2 versus 40.9±32.3 points, p=0.007; 7.0±14.0 versus<br />

19.0±20.0 points, p=0.001; 15.1±22.2 versus 32.8±28.6 points, p=0.009;<br />

and 78.7±35.2 versus 61.8±28.3 points, p=0.007). IORT + WBRT patients<br />

reported significantly more pain (mean ± standard deviation: 43.8±32.1<br />

points), breast (mean ± standard deviation: 29.7±22.8 points) and arm<br />

symptoms (mean ± standard deviation: 32.6±25.8 points) compared to<br />

patients with IORT alone (p-values: 0.018 for pain,


0387<br />

ID4 and WISP-2: potential role as tumorsuppressor in ovarian<br />

cancer?<br />

*K . Bräutigam1 , Y .-N . Maché1 , D .O . Bauerschlag1 , I . Meinhold-Heerlein1 ,<br />

N . Maass1 1Uniklinikum Aachen, Klinik für Gynäkologie und Geburtshilfe, Aachen,<br />

Deutschland<br />

Objective. Ovarian cancer stands for the most fatal disease among gynecological<br />

malignancies. Late stage-diagnosis and high recurrence rate<br />

as reason for poor prognosis stimulate the detection of new prognostic<br />

marker and the development of targeted therapies. Thus, the aim of this<br />

study was to characterize the role of ID4 and WISP-2 in ovarian cancer<br />

by expression analyses in ovarian cancer cell lines, in primary cultured<br />

cells derived from tumor-tissue and ascites and in tissues of malignant,<br />

benign and normal origin.<br />

Methods. To characterize the role of ID4 and WISP-2 oligonucleotide<br />

and methylation array analyses, qRT-PCR experiments, immunoblotting<br />

and immunhistochemistry analyses were performed.<br />

Results. The microarray analyses showed higher expression of ID4<br />

in low malignant potential (LMP) tumors versus high grade (G2/G3)<br />

tumors. Expression analyses of mRNA and protein level displayed a<br />

downregulation of ID4 in malignant tumors compared to normal and<br />

benign cases. Interestingly, strong ID4 expression could be examined<br />

in primary culture originated from metastasis or ascites. WISP-2 was<br />

shown to be hypermethylated while mRNA and protein expression was<br />

strongly repressed in malignant ovarian cancer compared to normal<br />

ovarian tissue samples. In benign cases the expression of WISP-2 was<br />

diverse.<br />

Conclusion. While ID4 seems to have a dual role in ovarian cancer progression<br />

and may be used as prognostic marker, the protective effect of<br />

WISP-2 in ovarian cancer progression may have important therapeutic<br />

implications.<br />

0394<br />

Radical vaginal trachelectomy with laparoscopic pelvic lymphonodectomy<br />

in a pregnant patient with cervical cancer<br />

*K . Abel1 , E .-F . Solomayer1 , I . Juhasz-Böss1 1Universitätsklinik Homburg, Frauenklinik, Homburg, Deutschland<br />

Malignancies occurring during pregnancy are always a challenge both<br />

from the oncologic and the obstetric point of view. Despite a generally<br />

declining incidence in western countries cervical cancer is still one of<br />

the most frequent malignant diseases in pregnant patients. So far different<br />

therapeutic strategies have been described depending on the stage<br />

of the disease, gestational age at diagnosis as on whether the patient wishes<br />

to continue her pregnancy: Postponing surgery after delivery, neoadjuvant<br />

chemotherapy, fertility-sparing operation during pregnancy<br />

or determination of pregnancy by radical hysterectomy.<br />

We report on a 30 years old primigravida who presented with a FIGO<br />

Ib1 cervical cancer and a tumor size of 25 mm at 11 weeks gestation.<br />

Radical vaginal trachelectomy combined with laparoscopic pelvic lymphonodectomy<br />

was performed without any complications. After close<br />

monitoring during pregnancy a planned caesarean section followed by<br />

a radical hysterectomy was performed at 35 weeks gestation. After one<br />

year of follow-up both mother and child are doing well without any evidence<br />

of recurrent disease.<br />

0396<br />

Kisspeptin-10 reduces tumor growth and metastasis in a breast<br />

cancer model in vivo<br />

*E . Ziegler1 , G . Emons1 , C . Gründker1 1Universitätsmedizin Göttingen, Frauenklinik, Göttingen, Deutschland<br />

Kisspeptin-10 (KP-10) belongs to a group of peptides derived from<br />

KISS1, a gene identified as metastasis suppressor. The antimetastatic effect<br />

of the kisspeptins was shown in mice having less metastasis after injection<br />

of melanoma and breast cancer cells transfected with KISS1. Peripherally<br />

administered kisspeptins also inhibited metastasis in mouse<br />

models with melanoma and prostate cancer cells. In vitro, kisspeptins<br />

showed an inhibitory effect on cell migration and invasion in addition.<br />

The aim of this study was to show the effect of KP-10 on breast cancer<br />

growth and metastasis in vivo.<br />

As xenograft CD-1 nude female mice were chosen. Tumor cells of two<br />

human breast cancer cell lines HCC 1806 and MDA-MB-435 were injected<br />

orthotopically. Mice were treated daily with KP-10 by intraperitoneal<br />

injection and tumor growth was measured. Metastasis was quantified<br />

after the end of the study as amount of human DNA in murine<br />

organs by real-time PCR.<br />

An increasing tumor growth could be detected. The treated groups<br />

bore smaller tumors compared to the untreated groups. Metastasis<br />

was measured in lung showing a decreased amount of human DNA in<br />

the groups treated with KP-10. To verify the inhibitory effect on tumor<br />

growth, KP-10 was tested for antiproliferative capacities in a viability<br />

assay. No difference between treated and untreated samples could be<br />

detected in vitro.<br />

The results in vivo demonstrate an inhibitory effect of KP-10 on breast<br />

cancer growth and metastasis. An antiproliferative effect of KP-10 could<br />

not be confirmed in cell culture assays. This may be based on the used<br />

experimental conditions. Furthermore, reduced proliferation caused<br />

by kisspeptins is controversially described in literature. The observed<br />

inhibition of tumor growth may also be mediated by an antiangiogenic<br />

effect of KP-10.<br />

According to the decreased amount of metastasis found in the treated<br />

group of mice, this effect could be caused by the lower tumor growth.<br />

But on the opposite, KP-10 also showed antiinvasive properties in vitro.<br />

Thus, KP-10 can be described having antimetastatic properties within<br />

the treatment of breast cancer in vivo.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

83


Abstracts<br />

0397<br />

Treatment of ovarian cancer by combining rapamycin and cytostatic<br />

drugs under hypoxic conditions<br />

*K . Bräutigam1 , L . Schacht1 , D .O . Bauerschlag1 , I . Meinhold-Heerlein1 ,<br />

N . Maass1 1Uniklinikum Aachen, Klinik für Gynäkologie und Geburtshilfe, Aachen,<br />

Deutschland<br />

Objective. Malignant tumors usually involve a relatively hypoxic state,<br />

which induces overexpression of hypoxia-inducible factor-1alpha (HIF-<br />

1alpha) to satisfactorily enable the tumor to survive. And inhibition<br />

of the mammalian target of rapamycin (mTOR) pathway including<br />

HIF-1alpha is expected to play a major role in suppression of tumor cell<br />

growth. Thus the aim of this study was to assess the potential to use<br />

rapamycin and currently applied anticancer agents in combination in<br />

ovarian cancer under normoxic and hypoxic conditions.<br />

Methods. The chemosensitive ovarian cancer cell line HEY was utilized<br />

to induce resistance against cisplatin, etoposide, doce- and paclitaxel.<br />

Besides these four chemoresistant subclones and the parental HEY cell<br />

line, IGROV-1 and SKOV-3, two resistant ovarian cancer cell lines were<br />

treated with either rapamycin or one of the four cytostatic drugs alone<br />

and also with the combination of rapamycin with each of the drugs.<br />

Cell viability and the expression of proteins in apoptotic pathways and<br />

molecules downstream of the mTOR signaling pathways were assessed<br />

by chrystal violet assay and immunoblotting.<br />

Results. Synergistic effects could be observed in all cell lines from the<br />

combination of rapamycin with either cisplatin or etoposide. Rapamycin<br />

enhanced induction of apoptosis and inhibition of proliferation by<br />

influencing the AKT pathway. Comparison of incubation under hypoxic<br />

or normoxic conditions led to no significant difference.<br />

Conclusion. The combination of the chemotherapeutic drugs cisplatin<br />

and etoposide with rapamycin could be worth exploring as a treatment<br />

modality for epithelial ovarian cancer.<br />

0403<br />

Reverse phase protein microarrays for protein profiling in breast<br />

cancer tumor samples<br />

*J . Sonntag1 , S . von der Heyde2 , T . Beissbarth2 , S . Wiemann1 , H .-P . Sinn3 ,<br />

A . Schneeweiss4 , U . Korf1 1DKFZ, Division of Molecular Genome Analysis, Heidelberg, Deutschland,<br />

2University Medical Center Göttingen, Department of Medical Statistics,<br />

Göttingen, Deutschland, 3University Hospital of Heidelberg, Department of<br />

Pathology, Heidelberg, Deutschland, 4National Center for Tumor Diseases,<br />

Department of Gynecology and Obstetrics, Heidelberg, Deutschland<br />

Introduction. Breast cancer is nowadays recognized as a heterogeneous<br />

disease. With the knowledge of the histopathological as well as molecular<br />

heterogeneity in mind and following the hypotheses that intrinsic<br />

biologic features of breast tumors affect the response to different therapies,<br />

we want to further elucidate the underlying molecular mechanisms<br />

on the proteome level using reverse phase protein microarrays<br />

(RPPA, [1]).<br />

Method. RPPA allow the quantitative analysis of target protein expression<br />

and posttranslational modifications in large sample sets. The method,<br />

in principle, is a miniaturized dot blot immunoassay. Tissue lysates<br />

of 140 fresh-frozen breast cancer tumor samples (80% ERa positive, 5%<br />

HER2 positive, 13% triple negative) were spotted with a highly accurate<br />

contact printer on numerous nitrocellulose coated glass slides. Each replicate<br />

array of tumor samples was probed with one of over 100 targetspecific<br />

antibodies. A secondary antibody coupled to a near-infrared<br />

dye was used for detection of the primary antibody. Data analysis was<br />

done with the RPPanalyzer [2].<br />

Results. As proof of principle, RPPA data for ERa and HER2 were compared<br />

with the routine classification of the respective targets as obtained<br />

by immunohistochemical (IHC) staining. RPPA data significantly<br />

84 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

separated the IHC ERa positive from the ERa negative as well as the<br />

IHC HER2 positive from the HER2 negative group of patients (p


0428<br />

HPV16-L1-specific antibody rapidtest improves the prognostic<br />

significance of Cytoactiv®<br />

G . Mehlhorn1 , *S . Hautmann1 , M .W . Beckmann1 , R . Hilfrich2 1 2 Fraunklinik/Universität, Onkologie, Erlangen, Deutschland, Labor, Cytoimmun<br />

Diagnostics, Pirmasens, Deutschland<br />

Background. Immunochemical detection of the HPV-L1 capsid-protein<br />

with Cytoactiv is used as a prognostic marker to predict remission and<br />

progression of HPV High risk (HR) associated LSIL/HSIL. In the presence<br />

of the HPV-L1 capsid-protein an activation of the immune system<br />

is expected and a spontaneous remission is observed. In a minor proportion<br />

of cases (20%) the immune system fails to clear the dysplasia,<br />

and a progression of HPV-L1 capsid-protein positive cells occur.<br />

Objective. The aims of this study were 1.) to validate the use of an HPV16<br />

L1-specific antibody rapidtest as a marker for the L1-specific activation<br />

of the immune system and 2.) to validate if this test could improve the<br />

prognostic significance of Cytoactiv for HPV HR+ LSIL/HSIL.<br />

Material and methods. 84 patients showing HPV HR+ LSIL/HSIL were<br />

recruted for this study. Immunochemical detection of the HPV-L1 capsid-protein<br />

was carried out with Cytoactiv®. All serum samples were<br />

tested with an HPV16 L1-specific antibody rapidtest (HPVix-Cytoimmun<br />

diagnostics). HCII was used to confirm HPV HR positivity. Serum<br />

samples of 50 Pap-negative, HCII positive women served as control.<br />

Results and Conclusion. 22 (26%) patients of the study groupe but only 2<br />

(4%) women of the control groupe showed an HPV16 L1-specific antibody<br />

response. A combined analysis of Cytoactiv and HPVix showed<br />

no progression for 11, L1 capsid-protein and L1-antibody, double positive<br />

women. Seven women showed a progression to CIN3 within the L1 single<br />

positive or double negative women. The observed 6.5-fold increase of<br />

the antibody response for women showing an HPV HR+ LSIL/HSIL is<br />

indicative for an L1-specific activation of the immune response. Since<br />

no progression was observed for L1 double positive women, the rapidtest<br />

could be a promissing tool to improve risk assesement of HPV HR+<br />

LSIL/HSIL.<br />

0429<br />

miRNAs as a prognostic marker/marker for circulating tumour<br />

cells in metastatic breast cancer<br />

*D . Madhavan, M . Wallwiener, K . Cuk, C . Modugno, I . Baccelli, M . Zucknick,<br />

A . Trumpp, S . Riethdorf, P . Sinn, C . Sohn, K . Pantel, A . Schneeweiss,<br />

B . Burwinkel<br />

Circulating tumour cells (CTCs) have been shown to be an independent<br />

prognostic factor in metastatic breast, prostate and colorectal cancer.<br />

Based on these evidences, the FDA has approved the use of CTCs counted<br />

by the Veridex Cell Search system, as an index to monitor therapy<br />

and assess outcome. However, there are few logistical challenges, technical<br />

difficulties and discrepancies in the detection of CTCs. Therefore,<br />

an easier and more robust method committed to an equal or even better<br />

prognostic value is strongly appreciated. We exploited the potential of<br />

circulating miRNAs in plasma to distinguish CTC positive from CTC<br />

negative patients. By array based analysis of 667 miRNAs in plasma of<br />

11 CTC positive and 9 CTC negative patient samples and further verification<br />

via TaqMan realtime PCR of the identified hits in 60 CTC<br />

positive and 60 CTC negative samples, we identified a set of miRNAs<br />

capable of reliably distinguishing CTC positive from CTC negative patients<br />

as well as from normal control individuals. These data show that<br />

circulating miRNAs are suitable prognostic marker in metastatic breast<br />

cancer.<br />

0434<br />

Quality of care for premenopausal patients with early-onset<br />

breast cancer in <strong>German</strong>y<br />

*D . Fischer1 , M . Hedderich1 , A . Heinrichs1 , M . Thill1 , C . Dittmer1 , B . Wedel1 ,<br />

C . Banz1 1Unversitätsklinikum SH, Campus Lübeck, Frauenklinik, Lübeck, Deutschland<br />

Background and objective. The objective of the study is to evaluate how<br />

young breast cancer patients are treated adjuvantly and whether treatment<br />

adheres to the guidelines. The distinction between this cohort and<br />

a normally distributed cohort was verified.<br />

Materials and methods. The study evaluates the data from a total of<br />

1100 patients who were treated adjuvantly in the period from 2006 until<br />

now and participated in a resident mother-child program. To date, the<br />

data of 535 patients have been analyzed. The data includes TNM-stage,<br />

the biology of tumor, therapies and their guideline-adherence. In addition<br />

the amount of participation in studies was evaluated. All data was<br />

compared to an age-heterogeneous cohort from the state of Schleswig-<br />

Holstein and the DMP report of the state of North Rhine-Westphalia.<br />

Results. Of the patients that have been evaluated so far, 46% were diagnosed<br />

with stage pT1, 38% pT2, 7% pT3 and 2% pT4. 5% had merely<br />

DCIS. 49% of the patients were pN0, 31% pN1 and 20% had a more intense<br />

infestation of lymph nodes. 44% of the tumors showed G3, 34% were<br />

ER negative, 36% PR negative and 73% HER2 negative. 21% of the examined<br />

probands showed a triple negative carcinoma. 58% of the patients<br />

with stage pT1 underwent breast-conserving surgery, 54% with stage T2<br />

and 25% with stage pT3. Overall 15% of the women received mastectomy<br />

with subsequent reconstruction. 73% of the patients received axillary<br />

dissection, 90% received chemotherapy. Overall 21% were treated<br />

within studies. 61% of the patients with antihormonal therapy received<br />

GnRH-analoga. An additional analysis of data, the examination with<br />

regard to the conformity with guidelines and the comparison with a<br />

normally distributed age group has not been completed yet.<br />

Conclusion. Young breast cancer patients provide a special challenge for<br />

the therapists because their prognosis is often worse, frequently the tumor<br />

has developed to a worse stage, and carcinomas are more aggressive.<br />

Furthermore we have to view the kind of surgery in this age group in<br />

a more differentiated way. It remains unclear to what extent guidelines<br />

adherence improves overall survival and disease free survival.<br />

0437<br />

Prognostic value of CA 27.29 trend during adjuvant chemotherapy<br />

and two years thereafter in patients with primary breast<br />

cancer<br />

*J . Neugebauer1 , B . Rack1 , P . Hepp2 , U . Andergassen1 , J . Salmen2 , G . Heinrich3<br />

, J . Schreier4 , A . Hönig5 , D . Finas6 , T . Zwingers7 , R . Kreienberg8 ,<br />

M .W . Beckmann9 , W . Lichtenegger10 , K . Friese1 , W . Janni2 1Klinikum der LMU München – Innenstadt, Frauenklinik, München,<br />

Deutschland, 2Universitätsfrauenklinik, Düsseldorf, Deutschland, 3Praxis Dr . Heinrich, Fürstenwalde, Deutschland, 4DRK-Kliniken, <strong>Berlin</strong> Köpenick,<br />

Deutschland, 5Universitätsfrauenklinik, Würzburg, Deutschland, 6Frauen klinik, Universität zu Lübeck, Deutschland, 7estimate GmbH, Augsburg,<br />

Deutschland, 8Universitätsfrauenklinik, Ulm, Deutschland, 9Universitäts frauenklinik, Erlangen, Deutschland, 10Charité, <strong>Berlin</strong>, Deutschland<br />

Background. Emerging data show that the use of tumor markers (TM)<br />

can lead to an early diagnosis of tumor recurrence in breast cancer. TM<br />

are therefore frequently used in routine clinical patient care. But it is<br />

still under investigation whether early treatment induction can improve<br />

the prognosis of breast cancer patients with recurrence of their disease.<br />

Methods. The SUCCESS Trial compares adjuvant FEC-Docetaxel (Doc)<br />

vs. FEC-Doc-Gemcitabine (Doc-G) regime and two vs. five year treatment<br />

with Zoledronate in nodal positive or high risk nodal negative pa-<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

85


Abstracts<br />

tients with primary breast cancer. CA27.29 was measured prior to and<br />

immediately after chemotherapy (CHT), as well as 2 years thereafter<br />

with the ST AIA-PACK Ca27.29 reagent using MUC-1 for AIA-600II<br />

(Tosoh Bioscience, Tessenderlo, Belgium). For this analysis, the change<br />

of Ca27.29 from pre-chemotherapy baseline to 2 years was evaluated.<br />

Results. CA27.29 data was available of 3202 patients before and 2015 patients<br />

2 years after chemotherapy. 20.2% of patients showed increasing<br />

(≥1 U/ml) CA27.29 levels from before CHT to 2 years thereafter. 59.7%<br />

of patients had decreasing and 20.1% had stable CA27.29 levels from baseline<br />

to 2 years. Patients with increasing CA27.29 levels from before<br />

CHT to 2 years after CHT had a significant worse disease-free survival<br />

(DFS) (HR 1.016; [95% CI 1.011–1.021] p=5 U/ml had a 81% increased risk<br />

for recurrence (HR 1.81; [CI: 1.111–2.948]). Between those patients with<br />

stable and decreasing levels there was no significant difference in terms<br />

of prognosis. In the multivariate analysis taking into account tumor<br />

size, nodal status, grading, age, hormonal and Her2/neu receptor status<br />

increasing CA27.29 levels were an independent prognostic marker with<br />

respect to poor DFS and OS.<br />

Conclusion. A small increase of the tumor marker Ca27.29 compared to<br />

pre-chemotherapy level was associated with a worse prognosis. Therefore,<br />

individual changes in tumor marker values compared the patient’s<br />

baseline could lead to a more accurate and clinically relevant interpretation<br />

of tumor markers.<br />

0442<br />

Primary colorectal adenocarcinoma metastatic to the breast:<br />

case Report and review of the literature<br />

*J . Radosa1, , R . Mayroya1 , A . Leingartner1 , I . Juhasz-Böss1 , E .-F . Solomayer1 ,<br />

S . Baum1 1Universitätsklinikum des Saarlandes, Frauenklinik, Homburg/Saar,<br />

Deutschland<br />

Introduction. Metastases to the breast from extramammarian carcinomas<br />

are extremely rare and account for 1–6% of all breast malgnancies.<br />

Mostly gastric and lung carcinomas, lymphoma and malignant melanoma<br />

are the most freuquently nonmammary metastases. Colorectal<br />

carcinoma as a metasis in the breast are very uncommon. We presented<br />

a case of poorly differentiated colon cancer metastatic to the breast.<br />

Case presentation. A 79-year-old caucasian woman who was diagnosed<br />

with primary colon adenocarcinoma stage Duke C in 2010 and treated<br />

with right hemycolectomy and chemotherapy (Folfox 10 cycles). Six<br />

month after chemotherapy a tumor in the right upper quadrant of the<br />

breast was discovered incidentally during re-staging. Patients received<br />

segment resection of the right breast, sentinel node biopsy and intraoperative<br />

radiation. Postoperative pathology results showed an undifferentiated<br />

adenocarcinoma which could be identified as a metastasis<br />

from the primary colorectal carcinoma.<br />

Conclusion. Colorectal metastases in the breast are extremely seldom<br />

and there is no general therapy standard. Very important in the management<br />

of this occurrence is a multidisciplinary approach to provide<br />

best treatment for the patient.<br />

86 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0448<br />

Clinical value of circulating tumour cells (CTC) in metastatic breast<br />

cancer (MBC) as prognostic and predictive factors<br />

*M . Wallwiener1,2 , C . Modugno2 , I . Baccelli3 , M . Sprick3 , B . Schoenfisch4 ,<br />

S . Riethdorf5 , S . Schott1,2 , C . Domschke1,2 , C . Pantel5 , F . Marmé1,2 , C . Sohn1 ,<br />

A . Trumpp3 , A . Schneeweiss2 1 2 Universitäts-Frauenklinik, Onkologie, Heidelberg, Deutschland, NCT,<br />

National Center for Tumor Diseases, Heidelberg, Deutschland, 3HI-STEM, DKFZ, <strong>German</strong> <strong>Cancer</strong> Research Center, Heidelberg, Deutschland, 4Universi ty of Tübingen, Department of Obstetrics and Gynaecology, Tübingen,<br />

Deutschland, 5University Medical Center Hamburg-Eppendorf, Institute of<br />

Tumour Biology, Hamburg, Deutschland<br />

Background. CTC (≥5/7.5 ml blood) are prognostic of worse progressionfree<br />

survival (PFS) and overall survival (OS) in MBC. We aimed to correlate<br />

CTC kinetics during first cycle of treatment and CTC phenotype<br />

to response.<br />

Methods. Patients (pts) with progressive MBC had 7.5 ml blood samples<br />

taken at baseline and after completing the first cycle of a new line<br />

of systemic therapy. CTC changes from baseline (BL) to first cycle (C1)<br />

+ − + + (CTC → CTCC1 / CTCBL → CTCC1 ) were correlated with Radiologi-<br />

BL<br />

cal Response Evaluation Criteria in Solid Tumors (RECIST). Changes<br />

from CTCBL → CTCC1 were grouped as increasing (>25%), decreasing<br />

(>25%),) or constant (


0451<br />

Epithelial cell adhesion molecule (EpCAM) is associated with a<br />

favorable prognosis in epithelial ovarian cancer patients<br />

*H . Woopen1 , K . Pietzner1 , R . Richter1 , C . Fotopoulou1 , T . Joens1 , E . Braicu1 ,<br />

J . Shetje2 , H . Mellstedt2 , S . Darb-Esfahani3 , C . Denkert3 , J . Sehouli1 1Charité – Universitätsmedizin <strong>Berlin</strong>, Department of Gynecology, <strong>Berlin</strong>,<br />

Deutschland, 2<strong>Cancer</strong> Center Karolinska, Department of Oncology, Karolinska,<br />

Schweden, 3Charité – Universitätsmedizin <strong>Berlin</strong>, Department of<br />

Pathology, <strong>Berlin</strong>, Deutschland<br />

Background. EpCAM, a well known cancer antigene is currently experiencing<br />

a renaissance in its use as a binding site for targeted oncologic<br />

therapy and prognostic marker in various epithelial carcinomas such as<br />

breast cancer or carcinomas of the oral cavity. Goal of this retrospective<br />

study was to identify EpCAM as a potential prognostic marker for patients<br />

with primary epithelial ovarian cancer (EOC).<br />

Methods. EpCAM Expression was assessed in tumor tissue by immunohistochemistry<br />

using the Avidin-Biotin-Complex method on paraffinembedded<br />

ovarian cancer tissue samples. EpCAM overexpression was<br />

defined as an expression of EpCAM as high as 76–100%. Clinical data<br />

as well as tumor tissue samples were collected within the “Tumorbank<br />

Ovarian <strong>Cancer</strong>” network.<br />

Results. Seventy-four patients with the primary diagnosis of EOC between<br />

01/1994 and 12/2009 were included in this study. Median age at<br />

diagnosis was 56 years. The vast majority of the patients (75.4%) presented<br />

an advanced stage disease (FIGO III/IV). Forty-one (55.4%) patients<br />

were diagnosed with a serous, 19 (25.6%) a endometrioid and 14 (19%) a<br />

mucinous histology. EpCAM was overexpressed in 87.7% of the patients.<br />

Serous tumors expressed EpCAM significantly higher than mucinous<br />

tumors (p=0.045). There was no significant difference in the expression<br />

of EpCAM between the other histological subgroups. EpCam overexpression<br />

correlated in univariate analysis with a significantly better<br />

overall survival. When classifying EpCAM expression into two groups,<br />

namely ≤50% and 76–100%, in a Log Rank (Mantel Cox), it was proved<br />

that EpCAM overexpression of higher than 76% was found to be associated<br />

with a significantly better survival compared to a lower EpCAM<br />

expression of ≤50% (p=0.008).<br />

Discussion. EpCam overexpression in EOC appears to be significantly<br />

associated with significantly higher overall survival rates. Larger,<br />

prospective multicenter studies are warranted to further evaluate and<br />

confirm these novel findings and possibly establish EpCAM as a potent<br />

therapeutic target in EOC.<br />

0452<br />

Breast density and breast cancer characteristics<br />

*K . Heusinger1 , S .M . Jud1 , C .R . Loehberg1 , C . Hack1 , M . Bani1 , M .P . Lux1 ,<br />

M .G . Schrauder1 , R . Schulz-Wendtland2 , B . Adamietz2 , M . Meier-Meitinger2 ,<br />

M .W . Beckmann1 , P .A . Fasching1 1University Hospital Erlangen, Dept . of OB/Gyn, Erlangen, Deutschland,<br />

2University Hospital Erlangen, Dept . of Radiology, Erlangen, Deutschland<br />

Background. Breast cancer risk factors are increasingly linked with breast<br />

cancer molecular subtypes. For example family history might be linked<br />

to triple negative breast cancer and hormone replacement therapy<br />

is supposed to increase the risk for hormone receptor positive breast<br />

cancer. Aim of our study was to associate mammographic density with<br />

the tumor characteristics of invasive breast cancers.<br />

Methods. In a case only design 1974 invasive breast cancers with available<br />

information about age at diagnosis, BMI and parity on the one<br />

hand and tumor characteristics like quantitative ER and PR status, were<br />

analyzed concerning their association with mammographic density.<br />

Mammographic density was obtained with the MADENA. For the association<br />

of the continuous variable mammographic density with the<br />

other factors an unconditional linear regression model was built.<br />

Results. Mammographic density was strongly associated with age, BMI<br />

and parity. Concerning tumor characteristics mammographic density<br />

was negatively correlated with tumor stage and progesterone receptor<br />

status and negatively correlated with estrogen receptors status. After adjusting<br />

for the influence of BMI, age and parity, the negative association<br />

with the estrogen receptor status and the positive association with the<br />

progesterone receptor status remained statistically significant.<br />

Conclusions. There seems to be a positive correlation between mammographic<br />

density and the progesterone receptor status, and a negative<br />

correlation of the estrogen receptor status of the breast tumor with<br />

the mammographic density of the breast, implying a possible balanced<br />

interaction between both sex hormones in the pathogenesis of breast<br />

tumors.<br />

0455<br />

Prognostic relevance of circulating tumor cells in the peripheral<br />

blood of primary breast cancer patients<br />

*B . Rack1 , C . Schindlbeck2 , U . Andergassen1 , R . Lorenz1,3 , T . Zwingers1,3,4 ,<br />

A . Schneeweiss1,3,4,5 , W . Lichtenegger1,3,4,5,6 , M .W . Beckmann1,3,4,5,6,7 , H . Sommer1<br />

, K . Pantel1,8 , K . Friese1,8 , W . Janni1,8,9 1 2 LMU, Gynäkologie, München, Deutschland, Klinikum Traunstein, Traunstein,<br />

Deutschland, 3Gemeinschaftspraxis Dr . Lorenz/Hecker/Wesche,<br />

Braunschweig, Deutschland, 4estimate GmbH, Augsburg, Deutschland,<br />

5 6 Universität Heidelberg, Heidelberg, Deutschland, Charite Universitätsmedizin,<br />

<strong>Berlin</strong>, Deutschland, 7Universitätsfrauenklinik, Erlangen, Deutschland,<br />

8Institut für Tumorbiologie, Hamburg, Deutschland, 9Heinrich-Heine- Universität, Düsseldorf, Deutschland<br />

Background. Circulating tumor cells (CTC) in blood have been shown<br />

as predictor of shortened survival in metastatic disease. We evaluated<br />

whether the presence of CTC before the start of systemic adjuvant treatment<br />

increases the risk of subsequent relapse and death.<br />

Patients and methods. The SUCCESS A -Study compares disease-free<br />

survival in patients treated with 3 cycles of FEC (100/500/100), followed<br />

by 3 cycles of Docetaxel (100) versus 3 cycles of FEC, followed by 3 cycles<br />

of Gemcitabine (1000 mg/m2 d1,8)-Docetaxel (75). In 2026 patients<br />

CTC were analyzed using the CellSearchSystem (Veridex, USA). 23 ml<br />

of peripheral blood were drawn before the start of adjuvant systemic<br />

treatment. After immunomagnetic enrichment with an anti-Epcamantibody,<br />

cells were labelled with anti-Ck8/18/19 and anti-CD45 antibodies.<br />

Patients were followed for a median of 35 months. Patients with<br />

evidence of at least 1 CTC were counted as positive.<br />

Results. In 21.5% of patients (n=435) CTC were detected before the start<br />

of systemic treatment (median 1.3, range 1–827). Patients with CTC before<br />

treatment were more frequently node-positive (p


Abstracts<br />

0459<br />

Impact of the ratio of positive to resected nodes on prognosis of<br />

advanced epithelial ovarian cancer<br />

*C . Bachmann1 , *S . Bachmann1 , E . Grischke1 , E . Solomayer2 , T . Fehm1 ,<br />

D . Wallwiener1 1Universitätsfrauenklinik, Gynäkologie/Geburtshilfe, Tübingen, Deutschland,<br />

2Universitätsfrauenklinik, Gynäkologie/Geburtshilfe, Homburg/ Saar,<br />

Deutschland<br />

Introduction. The objective of this study was to assess the value of metastatic<br />

lymph node ratio (positive to resected nodes) in predicting<br />

prognosis of patients with stage IIIc ovarian cancer. 5-year survival<br />

rate is about 25% for advanced ovarian cancer with worst prognosis in<br />

FIGO IIIc. The most important prognostic factor is radical surgery without<br />

residual tumour. Additionally according to the FIGO classification<br />

IIIc can present abdominal tumour lesions >2 cm and/ or positive<br />

retroperitoneal or inguinal nodes. Known is the increasing node positivity<br />

in advanced ovarian cancer; with about 40% of node positivity<br />

in patients with advanced ovarian cancer. Prognostic impact of node<br />

status or node ratio in advanced ovarian cancer is still unknown and is<br />

examined in studies. In other tumor entities a node ratio (e.g. colon cancer)<br />

already showed a unique significant prognostic value. So far there<br />

is very little data about node ratio in ovarian cancer. Possibly the node<br />

ratio is a way to assess the prognosis for initial diagnosis in stage IIIc<br />

ovarian cancer patients.<br />

Methods. Therefore, 261 consecutive patients with primary ovarian cancer<br />

underwent surgery between 2000 and 2007 at the Department of<br />

Gynecology at the University Hospital, Tübingen, <strong>German</strong>y. Every patient<br />

underwent surgical staging or tumour debulking as clinically indicated<br />

and adjuvant standard platinum- based chemotherapy. Patients<br />

with residual tumour mass>2cm or reduced general health got no lymphadenectomy.<br />

Tumour stage was classified according to FIGO classification.<br />

Data of all patients with primary advanced ovarian cancer and<br />

FIGO IIIc were evaluated (133 patients). The ratio of positive to resected<br />

lymph nodes was stratified into the following groups: 1 (LNR=0); 2 (>0–<br />

0.5) had similar OS<br />

(34.7 vs. 32.6 months). No significant impact on PFS was seen with the<br />

node ration in the three groups. In other tumor entities a node ratio (e.g.<br />

colon cancer) already showed a unique significant prognostic value. So<br />

far there is very little data about node ratio in ovarian cancer.<br />

Conclusion. So far there are very few studies on the importance of the<br />

node ratio in ovarian cancer. Our results show that node ratio can estimate<br />

prognosis in FIGO IIIc ovarian cancer for OS, but had no significant<br />

impact on PFS. Best OS have patients with node ratio >0–


0485<br />

Variations in VEGF- and TIMP2-expression during therapy seem<br />

to predict the response to platinum-based chemotherapy in<br />

patients with primary cervical-cancer (CC)<br />

*E .I . Braicu1 , C . Fotopoulou1 , R . Chekerov1 , R . Richter1 , J .-U . Blohmer2 , C . Pop1 ,<br />

M . Mentze1 , S . Kümmel3 , W . Lichtenegger1 , J . Sehouli1 1 2 Charité, Virchow Klinikum, Frauenklinik, <strong>Berlin</strong>, Deutschland, Sankt Gertrauden-Krankenhaus,<br />

Frauenheilkunde und Geburtshilfe, <strong>Berlin</strong>, Deutschland,<br />

3Kliniken Essen Mitte, Brustzentrum, Essen, Deutschland<br />

Objective. The aim of this study was to analyze the type of variations<br />

in expression-profile of MMP2, MMP9, TIMP2, and VEGF before and<br />

after chemotherapy in patients with advanced FIGO stage Ib–IIb CC.<br />

Therefore we analysed the impact of changes in expression on platinum<br />

response.<br />

Methods. Serum from 72 CC patients treated within a phase-III trial<br />

with either simultaneous radiochemotherapy with cisplatin S-RC or<br />

systemic paclitaxel and carboplatin followed by percutaneous radiation<br />

PC-R was analyzed by ELISA. Sera were obtained during surgery and<br />

after end of the adjuvant treatment. Statistical analysis was performed<br />

using SPSS and following standard procedures.<br />

Results. The median age at time of diagnosis was 46 years (range 30–<br />

71 years). Most of the patients presented a squamous cell- (73.6%) followed<br />

by adenocarcinomas (25%). 35 (48.6%) patients received surgery<br />

followed by S-RC and 37 (51.4%) patients were treated with PC-R. Five<br />

patients developed recurrence within 6 months after end of chemotherapy.<br />

VEGF levels were increased in platinum non-responders (mean<br />

difference: 150 pg/ml) and decreased in platinum-responder patients<br />

(mean difference: −233 pg/ml). This difference reached no statistical significance<br />

(p=0.144). The TIMP2 expression was not significantly increased<br />

in platinum-sensitive patients compared to platinum-resistant ones<br />

(p=0.112). An increase of more than 500 pg/ml VEGF and a decrease<br />

of more than 9% of the pre-therapeutically value of TIMP2 were significantly<br />

associated with a higher risk of platinum resistance (RR=8.5,<br />

95% CI=1.8–39.8 and RR=11.0, 95% CI=2.5–48.2, respectively).<br />

Conclusions. Our results indicate that VEGF and TIMP2 might predict<br />

the platinum-response in patients with advanced primary CC.<br />

0491<br />

Zoledronic acid has antitumor activity in primary breast cancer<br />

cells as determined by the ATP tumor chemosensitivity assay<br />

*T . Fehm1 , H . Seeger1 , M . Zwirner1 , D . Wallwiener1 , H . Neubauer1 1Eberhard-Karls-University Tübingen, Department of Obstetrics and Gynecology,<br />

Tübingen, Deutschland<br />

Introduction. The NeoAzure study has demonstrated that the use of the<br />

bisphosphonate zole-dronate increases the rate of complete response in<br />

primary breast cancer and therefore indicates direct antitumor activity.<br />

The aim of this study was to compare the antitumor effect of zolendronic<br />

acid with standard chemotherapy in primary breast cancer cells<br />

using ATP-tumor chemosensitivity assay (ATP-TCA).<br />

Material and methods. Tumor specimens were obtained from patients<br />

with breast cancer who underwent primary breast cancer surgery at the<br />

Department of Obstetrics and Gynecology, Tübingen, <strong>German</strong>y, between<br />

2006 through 2009. Antitumor effects of zoledronic acid (Zol),<br />

TAC (Docetaxel, Adriamycin, Cyclophosphamide) and FEC (5-Fluorouracil,<br />

Epirubicin, Cyclophosphamide) were tested in 116 fresh human<br />

primary breast cancer specimens using ATP-TCA. ATP-TCA results<br />

were analyzed with different cut-off levels for the half maximal inhibitory<br />

concentration (IC50) and for IC90 or a defined sensitivity index<br />

(IndexSUM). Each single agent or combination was tested at six doubling<br />

dilutions from 6.25, 12.5, 25, 50, 100, and 200% of test drug concentrations<br />

(TDC) derived from the plasma peak concentrations determined<br />

by pharmacokinetic and clinical information. The assay was carried<br />

out in duplicate wells with positive and negative controls.<br />

Results. For Zol the median IndexSUM value was 36.8% and 12.9% lower<br />

than for FEC and TAC, respectively, indicating increased antitumor<br />

activity in primary breast cancer cells. The difference between Zol<br />

and FEC was significant (p


Abstracts<br />

0496<br />

Expression of embryonic stem cell factor Sox2 in serous ovarian<br />

carcinomas<br />

*T . Fehm1 , D . Pham2 , V . Scheible2 , C . Lengerke3 , S . Perner2 , H . Neubauer1 ,<br />

A . Staebler2 1Eberhard-Karls-University Tübingen, Department of Obstetrics and<br />

Gynecology, Tübingen, Deutschland, 2Eberhard-Karls-University Tübingen,<br />

Department of Pathology, Tübingen, Deutschland, 3Eberhard-Karls-Univer sity Tübingen, Department of Internal Medicine, Tübingen, Deutschland<br />

Background. The transcription factor Sox2 is involved in the maintenance<br />

of embryonic stem cell pluripotency and is expressed in several<br />

carcinoma types such as adenocacinoma of the lung and squamous cell<br />

carcinomas (SCC) of various origins. The gene SOX2 is located at chromosome<br />

3q26, a region that is a frequently amplified in serous ovarian<br />

carcinoma. Therefore, the aim of this study was to explore the potential<br />

role of Sox2 in ovarian carcinogenesis by correlating Sox2 protein expression<br />

in 167 serous ovarian carcinomas with clinical outcome.<br />

Methods. 167 consecutive cases of serous ovarian carcinoma were analyzed<br />

by immunohistochemistry and in a tissue microarray for nuclear<br />

expression of Sox2. The cut-off level for Sox2 positity was>0% stained<br />

cells (Lengerke et al. BMC 2010). Correlation with clinicopathological<br />

factors were determined by chi-squared test. Recurrence-free and overall<br />

survival was compared by the logrank-test.<br />

Results. 57% of all 167 serous ovarian carcinomas showed detectable<br />

Sox2 positive cells. Sox2 expression was associated with grade 3 tumors<br />

(p


subgroup of patients with B-Raf mutation will likely benefit, and that<br />

due to the robustness of the healthy cells that have no B-Raf mutation<br />

side effects might be minimal. We believe that analysing robustness of<br />

other signalling pathways in a similar way will be the key to devise efficient<br />

targeted interventions for these, and will unveil which mutations<br />

in the pathway will break robustness and thereby open the door for efficient<br />

intervention.<br />

0034<br />

Mutual regulation of Bcl-2 proteins independent of the BH3<br />

domain as shown by the BH3-lacking protein Bcl-xAK<br />

*M . Plötz1 , A . M . Hossini1 , B . Gillissen2 , P . T . Daniel2 , E . Stockfleth1 , J . Eberle1 1Charité, Department of Dermatology and Allergy, Skin <strong>Cancer</strong> Center,<br />

<strong>Berlin</strong>, Deutschland, 2Charité, Department of Hematology, Oncology and<br />

Tumor Immunology, <strong>Berlin</strong>, Deutschland<br />

Introduction. The BH3 domain of Bcl-2 proteins was regarded as indispensable<br />

for mutual regulation of pro- and antiapoptotic family<br />

members as well as for apoptosis induction. We have recently described<br />

Bcl-xAK, a proapoptotic splice product of the bcl-x gene, which lacks<br />

BH3 but encloses BH2, BH4 and a transmembrane domain. It remained<br />

however unclear, how Bcl-xAK may trigger apoptosis.<br />

Materials and methods. For its efficient overexpression, Bcl-xAK was<br />

subcloned in an adenoviral vector under Tet-OFF control.<br />

Results. Strong induction of apoptosis was seen in melanoma and nonmelanoma<br />

cell lines in a time-dependent manner, reaching up to 50%<br />

of apoptotic cells at 72 h. Interestingly, Bcl-xAK shared typical characteristics<br />

with other proapoptotic Bcl-2 proteins, namely mitochondrial<br />

translocation, disruption of mitochondrial membrane potential and<br />

cytochrome c release, clearly indicating its regulation of the mitochondrial<br />

apoptosis pathway. Importantly, Bcl-xAK activity was critically<br />

dependent on the expression of either Bax or Bak, as shown in genetic<br />

models, and apoptosis was abrogated in Bax/Bak double knockout cells<br />

as well by overexpression of antiapoptotic Bcl-2 proteins as Bcl-2 or BclxL.<br />

A direct interaction with Bcl-2 or Bax was however ruled out by<br />

immunoprecipitation.<br />

Conclusion. Bcl-xAK proves the existence of an additional level of mutual<br />

regulation of Bcl-2 proteins that is independent of the described BH3mediated<br />

interaction between family members. Therein, mitochondrial<br />

translocation appears as a critical step, and this type of regulation may<br />

also play a role for other proapoptotic family members. New pathways<br />

may be used for overcoming therapy resistance frequently determined<br />

by Bcl-2 protein of cancer cells.<br />

0035<br />

SEC62: A new oncogene bridging the gap from 3q amplification<br />

to molecular cell biology in non-small cell lung cancer<br />

*J . Linxweiler1 , M . Linxweiler1 , M . Greiner1 , M . Barth1 , V . Jung2 , R . Grobholz3 ,<br />

Y .-J . Kim4 , R .M . Bohle4 , R . Zimmermann1 1Universität des Saarlandes, medizinische Fakultät, Institut für medizinische<br />

Biochemie und Molekularbiologie, AG Zimmermann, Homburg/ Saar,<br />

Deutschland, 2Universitätsklinikum des Saarlandes, Klinik für Urologie<br />

und Kinderurologie, Homburg/Saar, Deutschland, 3Kantonsspital Aarau,<br />

Institut für Pathologie, Aarau/Schweiz, Schweiz, 4Universitätsklinikum des<br />

Saarlandes, Institut für allgemeine und spezielle Pathologie, Homburg/<br />

Saar, Deutschland<br />

We previously reported a markedly increased Sec62-protein level in<br />

lung and thyroid cancer tissue samples compared to respective tumor<br />

free tissue using a multi-tumor-tissue-microarray. Keeping in mind the<br />

SEC62-gene locus at 3q26.2 and with respect to 3q-amplification having<br />

repeatedly been reported as the most common genetic alteration in<br />

non-small cell lung cancer (NSCLC) with emphasis on squamous-cell<br />

carcinoma (SCC) we wanted to elucidate a possible oncogenic function<br />

of SEC62 in lung cancer.<br />

Therefore, we analyzed the SEC62-mRNA and protein level in freshfrozen<br />

tissue samples from 70 lung cancer patients (35 SCC, 35 adenocarcinoma<br />

(AC)) by quantitative real time PCR (qPCR), Western Blot<br />

(WB) as well as immunhistochemistry (IHC) and found a significantly<br />

increased SEC62-mRNA (p


Abstracts<br />

0040<br />

Impact of polymorphisms in genes regulating apoptosis on further<br />

course of disease in patients with prostate cancer<br />

*A . Meyer1 , S . Janssen1 , N . Bogdanova1,2 , F . Imkamp3 , C . von Klot3 , J .H . Karstens1<br />

, J . Serth3 , T . Dörk-Bousset2 1Medizinische Hochschule Hannover, Klinik für Strahlentherapie und<br />

spezielle Onkologie, Hannover, Deutschland, 2Medizinische Hochschule<br />

Hannover, Klinik für Frauenheilkunde und Geburtshilfe, Hannover,<br />

Deutschland, 3Medizinische Hochschule Hannover, Klinik für Urologie und<br />

Urologische Onkologie, Hannover, Deutschland<br />

Purpose. Ionising irradiation leads to changes of the DNA with activation<br />

of cellular mechanisms responsible for the detection and repair of<br />

DNA double strand breaks or induction of apoptosis. Aim of this evaluation<br />

is the possible impact of polymorphisms in genes responsible for<br />

apoptosis on further course of disease in patients with low-risk prostate<br />

cancer for individualization of the therapy.<br />

Methods. 139 patients with low-risk prostate cancer treated with LDR<br />

brachytherapy between 11/2000 and 10/2004 at Hannover Medical<br />

School were included. The minimum follow-up was >12 months in all<br />

these patients. After extraction of the genomic DNA a screening for<br />

certain polymorphisms in 10 candidate genes with a key function in<br />

apoptosis was carried out: ATM (Ser49Cys), BID (Ser56Cys), CASP8<br />

(Asp302His), CASP10 (Val410Ile), LGALS3 (Pro64His), RASSF1<br />

(Ser133Ala), TP53 (Arg72Pro), TP53AIP1 (Ala7Val), BCL2 (-938C/A) and<br />

HDM2 (SNP309).<br />

Results. The median age of the patients at the implantation was 66.8 years,<br />

the mean Gleason score was 6, the mean PSA level before implantation<br />

was 7.2 ng/dl, the mean follow-up was 62,4 months. The overall<br />

survival after 2 and 5 years was 100% and 99%, the biochemical disease-free<br />

survival according to the ASTRO definition 90% and 84% and<br />

according to the Phoenix definition 97% and 91%. After correlation with<br />

the underlying polymorphisms only for BID (Ser56Cys) a statistical significant<br />

impact for biochemical disease-free survival according to the<br />

ASTRO definition could be detected (p=0.010). A biochemical recurrence<br />

could be seen in 2 of 4 carrier (50%) vs. 20 of 135 non-carrier (15%)<br />

though the small number of events and carrier has to be considered.<br />

Conclusions. In our analysis no clear correlation between polymorphisms<br />

in genes regulating the apoptosis and further course of disease<br />

could be detected that could lead to an individualization of the therapeutic<br />

options.<br />

0042<br />

Heat-shock protein 27 (HSP27) levels define the efficacy of HSP90<br />

inhibitors in cancer therapy<br />

H . Nagata1 , T .Y . Tsui1 , *O . Stöltzing2,1 1Universitätsklinikum Hamburg-Eppendorf, Hepatobiliäre Chirurgie, Hamburg,<br />

Deutschland, 2HELIOS Klinikum <strong>Berlin</strong>-Buch, Allgemein-, Viszeralund<br />

Onkologische Chirurgie, <strong>Berlin</strong>, Deutschland<br />

Heat-shock protein 90 (Hsp90) inhibitors have gained great interest for<br />

therapy of gastrointestinal cancers. Although Hsp90 inhibitors harbor<br />

the potential to impair multiple oncogenic signaling pathways in cancer<br />

cells, they also lead to induction of certain transcription factors and<br />

heat-shock proteins, such as Hsp27. Initially we sought to improve the<br />

anti-neoplastic efficacy of mTOR inhibitors in therapy of cholangiocarcinomas<br />

by combining them with Hsp90 antagonists in order to overcome<br />

the mTOR-inhibitor induced oncogenic Akt/Erk feed-back loop<br />

activation. However, we observed that dual-targeting mTOR/Hsp90<br />

displayed variable efficacy on cancer cells, which was paralleled by differences<br />

in an Hsp90-inhibitor-mediated Hsp27 induction. We therefore<br />

hypothesized that Hsp27 levels may modulate the efficacy of Hsp90<br />

inhibitors.<br />

Human cholangiocarcinoma and colon cancer cell lines were used for<br />

experiments. Hsp27 expression levels were additionally investigated on<br />

92 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

human colon cancer liver metastases. The results showed that low Hsp27<br />

expressing cancer cells were substantially less sensitive to Hsp90 inhibitors<br />

(17DMAG), as determined in proliferation assays and by Western<br />

blotting. Knock-down of Hsp27 (shRNA) in high-Hsp27-expressing<br />

cancer cells significantly reduced their response to Hsp90 inhibition<br />

(p


0064<br />

Fatty acid synthase (FAS-272) expression increases with rise of<br />

WHO-grade of human gliomas and can be blocked by specific<br />

inhibitors<br />

*P . Dünisch1 , J . Walter1 , S . Grube1 , R . Kalff1 , A . Waschke1 , R . Bauer2 , C . Ewald1 1 2 Universitätsklinikum Jena, Neurochirurgie, Jena, Deutschland, Friedrich-<br />

Schiller-Universität, Molekulare Zellbiologie, Jena, Deutschland<br />

Purpose. Fatty acid synthase is a multifunctional polypeptid which<br />

plays an essential role in cell metabolism. High expression levels of fatty<br />

acid synthase (FAS) have been reported in hormone receptor-positive<br />

tumors. In our current study we investigate the expression of FAS in<br />

gliomas of different WHO-Grades as a possible new target for anti tumor<br />

therapy.<br />

Material and methods. First 80 tumor samples of human brain tumors,<br />

were immunohistochemically evaluated via densitometric analysis.<br />

The FAS-mRNA concentration in fresh glioma tissue, removed during<br />

surgery, was analysed using Real-time PCR. We measured the effect<br />

of known FAS Inhibitors like Cerulenin, Orlistat, and C75 on glioma<br />

cell viability, cell proliferation and cell migration in the glioma cell line<br />

A-172 with the MTT assay and the xCELLigenceTM System. Cell apoptosis<br />

was visualizes via a nuclear fragmentation assay with the fluorescence<br />

dye Hoechst 33258 (Invitrogen).<br />

Results. Densitometric measurement revealed a significant increase of<br />

FAS expression in high grade gliomas. The incubation of the glioma cell<br />

line A172 with the FAS inhibitors Cerulenin, C75 and Orlistat leads to<br />

a time and dose dependent proliferations stop and induced cell death.<br />

This apoptotic cell death was confirmed by the nuclear fragmentation<br />

assay and Western blotting.<br />

Conclusion. With our study we could underline the essential role of<br />

FAS in the biology of human gliomas on protein and mRNA level. And<br />

our findings suggest that FAS might be a possible target for antiglioma<br />

therapy. Further studys in animal models are nessecary to confirm our<br />

findings in vivo.<br />

0081<br />

New molecular and imaging tools to detect and follow up extraadrenal<br />

phaeochromocytoma<br />

*D . Barski1 , V . Müller-Mattheis1 , S . Ezziddin2 , S . Heikaus3 , H . Neumann4 ,<br />

P . Albers1 1 2 Universitätsklinik Düsseldorf, Urologie, Düsseldorf, Deutschland, Universität,<br />

Nuklearmedizin, Bonn, Deutschland, 3Universitätsklinik Düsseldorf,<br />

Pathologie, Düsseldorf, Deutschland, 4Universität, Nephrologie, Freiburg,<br />

Deutschland<br />

Background. The prevalence of phaeochromocytoma in patients with<br />

hypertonia is 0.1–0.6% and about 15% of phaeochromocytoma are detected<br />

in extraadrenal tissue. The diagnosis and therapy of this rare disease<br />

detected as a retroperitoneal tumor mass can be difficult for clinicians.<br />

Objective. The publication aims to highlight the importance of standardised<br />

management and new genetic tools for the outcome and prognosis.<br />

Evidence acquisition. A literature review of the recent peer-reviewed<br />

articles was performed. Additionally we report on a 50-yr-old man presenting<br />

in our clinic with unclear retroperitoneal tumor mass, detected<br />

as extraadrenal phaeochromocytoma with SDHB mutation.<br />

Evidence synthesis. MRI is a first choice imaging for phaeochromocytoma,<br />

showing a hyperintense mass in T2-phase. Alternatively a CT<br />

scan can be done with nearly the same sensitivity (90–100%). For the<br />

validation of the diagnosis or follow up the functional imaging with<br />

radioactive tracers as 131I, 123I-metaiodobenzylguanidine (MIBG) or<br />

Fluorine-18-L-dihydroxyphenylalanine (18F-DOPA) positron emission<br />

tomography (excellent specificity and sensitivity of 90–100% in detection<br />

of small tumors >1–2cm) are used. Laparoscopic surgery with<br />

complete resection is safe and a first choice approach. The conversion<br />

(about 5%) or direct open operation was needed for large lesions (>8 cm)<br />

with the suspicion of malignancy. Currently there are no histological<br />

criteria for distinguishing benign and malignant tumors. The genetic<br />

testing (PCR, DNA sequencing) for hereditary syndromes (MEN, von<br />

Hippel-Lindau, neurofibromatosis, etc.) is a new crucial tool for prediction<br />

of malignancy and recurrence. All patients should get genetic<br />

analysis and consultation including family members. First, the rate of<br />

malignancy in phaeochromocytoma is about 5% but the prevalence of<br />

malignant disease is about 33% for extraadrenal phaeochromocytomas<br />

and even higher in patients with specific familial mutations (e.g. SDHB,<br />

NF1, VHL, MEN2). In patients with proven germline mutations, multiple<br />

phaeochromocytomas and recurrences are likely. A stringent lifelong<br />

clinical follow-up is recommended in these cases. Second, the patients<br />

with syndromic hereditary forms should be screened for the often associated<br />

other neoplasms.<br />

Conclusion. Genetic analysis provides an important and good tool for<br />

the prognosis of phaechromocytoma.<br />

0105<br />

The influence of combined treatment with 13-cis retinoic acid<br />

and Thalidomide on the growth of U251 glioblastoma xenografts<br />

*D . Milanovic1 , A .L . Grosu1 , G . Niedermann1 1Universitätsklinikum Freiburg, Strahlenheilkunde, Freiburg, Deutschland<br />

Objective. 13-cis retinoic acid (RA) and Thalidomide (THAL) show<br />

some clinical effects in Glioblastoma (GBM) patients as sole agents or<br />

in combination with other chemotherapeuticals. RA is a differentiation<br />

agent acting on cell cycle regulation and on EGFR-mediated growth<br />

stimulation. However, RA may induce expression of homeobox (HOX)<br />

genes, i.e., of developmental regulators during embryogenesis that are<br />

normally inactive in adults but may become active during carcinogenesis.<br />

RA-induced HOXB7 may in turn induce bFGF, which is a potent<br />

angiogenic and mitogenic factor, and this might limit the usefulness of<br />

RA in the treatment of GBM. THAL has immunomodulatory and antiangiogenic<br />

effects and can downregulate bFGF. In our previous work<br />

we showed that in vitro THAL inhibits RA stimulation of homeobox B7<br />

gene expression in human GBM cells. The purpose of the present study<br />

was to test the influence of RA and THAL, as sole agents and in combination,<br />

on the growth of U251 glioblastoma xenografts.<br />

Materials and methods. 1.5×106 U251 cells were inoculated s.c. into the<br />

right hind limb of NMRI-Foxn1nu athymic female nude mice. Animals<br />

were randomly assigned in 4 groups (7–11 animals/group) for treatment:<br />

control, RA, THAL and RA + THAL. The animals were treated daily<br />

(Monday-Friday) via intragastric tube with RA (30 mg/kg), THAL<br />

(30 mg/kg), or RA (30 mg/kg) plus THAL (30 mg/kg). Xenografts from<br />

sacrifed animals were used for hematoxylin and eosin staining.<br />

Results. The treatment was tolerated excellently; no side effects were observed.<br />

RA and THAL as sole agents did not affect the tumor growth in<br />

comparison to untreated controls. However, combined treatment caused<br />

a significant decrease in tumor volume. The final tumor volumes<br />

were: control = 1.37±0.2 cm3, RA = 1.38±0.23 cm3, THAL = 1.43±0.5 cm3,<br />

RA + THAL =0.69±0.075 cm3. Hematoxylin and eosin staining of xenografts<br />

showed marked hypocellularity in the case of combined treatment.<br />

Conclusions. Additive growth inhibition by RA and THAL can be achieved<br />

in U251 glioblastoma xenografts. These results support our prevoious<br />

findings from in vitro experiments. Because RA and THAL are well<br />

tolerated in patients, these data encourage further clinical studies on<br />

combinations of these compounds. Molecular-biological analysis of xenografts<br />

is underway and will be presented at the meeting.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

93


Abstracts<br />

0136<br />

The membrane transport protein Na+K+ATPase and intracellular<br />

ATP are involved in the selective inhibition of tumor stem cells by<br />

salinomycin<br />

*H . Bühler1 , A . Kochanneck1 , B . Priesch1 , K . Polz2 , R . Galalae2 , I . Adamietz2 1Marienhospital, Klinikum der Ruhr-Universität Bochum, Institut für Molekulare<br />

Onkologie, Strahlenbiologie und Experimentelle Strahlentherapie,<br />

Herne, Deutschland, 2Marienhospital, Klinikum der Ruhr-Universität, Klinik<br />

für Strahlentherapie und Radio-Onkologie, Herne, Deutschland<br />

Background. In 2009 Gupta et al. did show that some ionophores for<br />

monovalent kations could inhibit cancer stem cells (CSCs) at significantly<br />

lower doses than epithelial cancer cells, however the mechanism<br />

remained unclear. The antibiotic salinomycin was identified as the<br />

most effective substance. We checked this compound as to its inhibitory<br />

potency in CSCs isolated from a breast cancer cell line and tried to<br />

clarify the underlying mechanism. An obvious candidate is the membrane<br />

transporter Na+K+ATPase since this enzyme is responsible for<br />

the maintenance of the important Na+/K+ gradient over the cellular<br />

membrane.<br />

Methods. CSCs were isolated from MDA-MB 231 breast cancer cells via<br />

spheroids. An epithelial counterpart was obtained by transfection of keratin<br />

18 into MDA 231 wt cells. Salinomycin was added in concentrations<br />

from 10−7 to 5×10−5 M. Cellular viability with and without inhibitor<br />

was measured by a MTS-test. In addition, Na+K+ATPase was partially<br />

inhibited by 2.5×10−8 M hellebrin. Intracellular ATP was measured by<br />

chemiluminescence. Na+K+ATPase was quantified by qRT-PCR.<br />

Results. In our model system we could show a selective reduction of<br />

tumor stem cells viability in response to salinomycin, comparable to<br />

the published data. The isolated stem cell fraction was compromised<br />

at significantly lower doses than the epithelial subclone (IC50 10−6 vs.<br />

2×10−5 M). First approaches revealed that the Na+K+ATPase might play<br />

a role in this selective effect: the dose dependent inhibition of stem cells<br />

by salinomycin was approximated in epithelial cells, if additionally the<br />

Na+K+ATPase inhibitor hellebrin was added in low doses. However,<br />

qRT-PCR did not reveal any difference in the expression of the enzyme<br />

on the transcriptional level but a significantly lower content of free ATP<br />

was observed in stem cells.<br />

Conclusion. The selective inhibition of cancer stem cells by salinomycin<br />

might be caused by a disturbed Na+/K+ gradient originating more<br />

likely from energy deficiency than from a less active Na+K+ATPase in<br />

these cells.<br />

0143<br />

Radiotherapy combined with immune therapeutic approaches is<br />

capable to induce immunogenic tumor cells leading to anti-tumor<br />

immunity<br />

B . Frey1 , Y . Rubner1 , E .-M . Weiss1 , R . Fietkau1 , *U . Gaipl1 1Strahlenklinik Erlangen, Strahlen-Immunbiologie, Erlangen, Deutschland<br />

Combination of classical tumor therapies like radiotherapy with immune<br />

therapy has been considered, for a long time, to be counterproductive.<br />

Nowadays it is well accepted that specific immune responses contribute<br />

to the eradication of smaller tumor masses, recurrent tumors and metastases.<br />

To find the optimal combination and chronological sequence of<br />

radiotherapy, chemotherapy and immune therapy will be a great future<br />

challenge of scientists and clinicians. We present how tumor cells can<br />

be rendered immunogenic by ionising radiation (X-ray) alone and most<br />

importantly by combination with further immune stimuli like quality<br />

controlled hyperthermia (41.5°C for 1 h) or the naturally occurring<br />

adjuvant AnnexinA5. The latter is a ligand for phosphatidylserine that<br />

gets exposed on tumor cells after irradiation. X-ray plus heat led to the<br />

release of the immune activating danger signals high-mobility group<br />

box 1 protein (HMGB1) and heat shock protein 70 by tumor cells and<br />

subsequent activation of dendritic cells (DC). In addition, AnnexinA5<br />

94 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

shifted the uptake of tumor cells from macrophages to DC. The latter<br />

are key players in starting a tumor specific adaptive immune response.<br />

In vivo syngeneic mice experiments with radiation procedures closely<br />

resembling the human situation give first hints that AnnexinA5 further<br />

retards tumor growth when combined with X-ray. We conclude that radiotherapy<br />

alone or especially in combination with additional immune<br />

activatory stimuli like heat or AnnexinA5 is capable to induce an immune<br />

activatory tumour microenvironment that triggers anti-tumour<br />

immunity via activation of DC.<br />

This work is supported by the <strong>German</strong> Research Foundation (GA 1507/1-1 and<br />

GK1660) and by the Bundesministerium fuer Bildung und Forschung (BMBF;<br />

01EX1021R) .<br />

0148<br />

Hyperthermia induces increased Estrogen Sulfotransferase<br />

SULT1E1 gene expression in vitro<br />

*M . Jäger1 , M . Hirschfeld1 , G . Gitsch1 , E . Stickeler1 1Universitäts-Frauenklinik, Molekulare Onkologie, Freiburg, Deutschland<br />

Background and aims. The clinical application of hyperthermal therapy<br />

is gaining more importance, by its beneficial co-application in combination<br />

with chemotherapy or radiotherapy in malignant disease management.<br />

This approach might improve the therapeutical effect of these<br />

classical anti-cancer treatment strategies in certain circumstances. The<br />

SULT1E1 is a member of the Sulfotransferase family. Sulfotransferases<br />

are responsible for the sulfate conjugation of various hormones, drugs<br />

and xenobiotics. SULT1E1 is capable to inactivate estrogen by adding a<br />

sulfate group to the estrogen molecule.<br />

Methods. We investigated the potential regulatory effects of hyperthermia<br />

on the expression of SULT1E1. Several gynecological and breast<br />

cancer cell lines were cultured under hyperthermia (42°C, 2 h) followed<br />

by maintenance under regular culture conditions (37°C, 4 h). As a negative<br />

control, these cell lines were also permanently cultivated under<br />

regular temperature conditions. Transcript and protein expression levels<br />

of SULT1E1 were investigated by RT-PCR and Western Blot, respectively.<br />

Results. The analyses revealed an increase in mRNA and protein level<br />

of SULT1E1 under hyperthermia. Our results demonstrate a regulatory<br />

effect of hyperthermal treatment on the Estrogen Sulfotransferase<br />

SULT1E1<br />

Conclusion. We therefore hypothesize that hyperthermia can induce the<br />

expression of SULT1E1, thereby creating suppressive effects on tumorigenesis.<br />

The regulatory effect of hyperthermia on Estrogen receptor<br />

expression was described by our group previously. Our findings support<br />

the theory that hyperthermal treatment might represent a method that<br />

may improve classical anti-cancer therapies by a direct influence on the<br />

regulation of gene expression of important factors in cancer biology.<br />

0165<br />

Differential regulation of p53 isoforms in clear cell renal cell<br />

carcinomas<br />

*S . Heikaus1 , L . van den Berg1 , H .E . Gabbert1 , C . Mahotka1 1Universitätsklinikum Düsseldorf, Institut für Pathologie, Düsseldorf,<br />

Deutschland<br />

Aims. Renal cell carcinomas (RCCs) exhibit a marked resistance towards<br />

conventional chemotherapy, which is – at least in part – due to<br />

functional suppression of p53. In contrast to many other tumours, however,<br />

this p53 suppression in RCCs is mediated by mechanisms other<br />

than inactivating mutations. One of these mechanisms might be differential<br />

expression of p53 isoforms, which can influence the transcriptional<br />

activity of p53. Therefore, the aim of our study was to elucidate<br />

the relevance of differential p53 isoform expression for carcinogenesis,<br />

progression and therapy-resistance of RCCs.


Methods. Semiquantitative “Realtime PCR”, Western Blot and Caspaseassays.<br />

Results. RCCs revealed a shift towards a more p53 activating isoform expression<br />

pattern during tumour initiation and progression, in vivo. In<br />

vitro, two cell lines exhibiting a similar sensitivity towards Topotecaninduced<br />

cell death revealed a similar induction of p53 target genes by<br />

Topotecan but differed in the extend of Topotecan-induced apoptosis.<br />

Furthermore, they strongly differed in their basal expression patterns of<br />

the p53 isoforms as well as in the differential regulation of p53 isoform<br />

expression upon Topotecan-treatment.<br />

Conclusions. p53 isoforms are strongly differentially regulated by chemotherapy<br />

in RCCs. However, p53 isoform expression and regulation<br />

seems to be neither responsible for induction and progression of RCCs<br />

in vivo, nor for regulation of p53 gene expression, sensitivity towards<br />

chemotherapy and induction of apoptosis in vitro.<br />

0167<br />

Investigation of the postulated EGFR-pAkt- HIF1 alpha-survivin<br />

pathway in tumor cell lines and the role of HIF1 alpha under<br />

normoxic conditions<br />

*M . Kappler1 , S . Rot2 , H . Taubert3 , M . Bache2 , D . Vordermark4 , J . Schubert5 ,<br />

A .W . Eckert5 1Universitätsklinik und Poliklinik für Mund-, Kiefer- und Plastische Gesichtschirurgie,<br />

Molekulare Tumorbiologie, Halle(S), Deutschland, 2Universitäts klinik und Poliklinik für Strahlentherapie, Molekulare Strahlenbiologie,<br />

Halle(S), Deutschland, 3Universitätsklinik und Poliklinik für Urologie,<br />

Nikolaus-Fiebiger-Zentrum für Molekulare Biologie, Erlangen, Deutschland,<br />

4Universitätsklinik und Poliklinik für Strahlentherapie, Halle(S), Deutschland,<br />

5Universitätsklinik und Poliklinik für Mund-, Kiefer- und Plastische<br />

Gesichtschirurgie, Halle(S), Deutschland<br />

Background. The tumorbiological importances of tyrosine kinases receptors<br />

(e.g., insulin and EGF receptor) for proliferation, apoptosis and<br />

metabolism of tumor cells have already been shown. Both receptors<br />

(insulin receptor and EGFR) activate the tumor-relevant PI3K/AKT<br />

pathway. Recently, an EGFR- pAkt- HIF1α-survivin pathway was described,<br />

which activates the prognostic relevant inhibitor of apoptosis<br />

protein survivin in breast cancer cell lines under normoxic conditions<br />

(Peng et al. 2006).<br />

Methods. Accordingly to the study published by Peng et al. we treated<br />

two breast cancer cell lines (MDA-MB-231, MCF-7) with 100 ng/ml EGF,<br />

0.65 µg /ml insulin or with 50 nM of a PI3-K-Inhibitor Ly294006 under<br />

serum free conditions. The protein expression of pAkt, survivin and<br />

HIF1α was analyzed by western blot analysis. Furthermore, a cell cycle<br />

analysis was performed.<br />

Results. In accordance to the results of Peng et al, the cell line MCF-7<br />

showed an increase in survivin expression using EGF/insulin-stimulation<br />

in vitro. However, that pathway is detectable only under none<br />

physiological conditions (without serum). The cell cycle analysis demonstrated<br />

a G1-cell cycle arrest caused by serum deprivation, which<br />

is associated with a low protein expression of the IAP survivin. Insulin<br />

or EGF application induced an increase of G2/M-cell cycle cells and an<br />

increase of the expression of the G2/M marker protein survivin. In opposite<br />

to the MCF-7 cell line in the cell line MDA-MB231 the G1-cell<br />

cycle arrest caused by the serum deprivation is not influenced by EGF/<br />

insulin-stimulation. The IAP survivin is slightly induced by insulin<br />

application. Moreover, the HIF1α expression is not directly induced by<br />

signal transduction caused by an insulin or EGF induction, but by metabolic<br />

processes under normoxia.<br />

Conclusion. We found that the postulated EGFR- pAkt- HIF1 alpha-survivin<br />

pathway is unverifiable in the same cell lines used by Peng et al.<br />

We propose that the postulated activation of the protein survivin by<br />

EGF or insulin application is caused by a simple change in the distribution<br />

of cells in different cell cycle phases. Moreover, and in accordance<br />

to our results, the cell line MDA-MB231 was described by other aut-<br />

hor as insensible to an EGF-like stimulus (Takabatake et al. 2007). The<br />

accumulation of HIF1 alpha under normoxia seems to be induced by<br />

metabolic processes. We assume that the pathway postulated by Peng et<br />

al. is an artificial pathway.<br />

0172<br />

Decreased cell proliferation and induced apoptosis in CTCL cells<br />

lines by non-steroidal anti-inflammatory drugs (NSAIDs)<br />

*F . Braun1 , M . Plötz1 , N . Al-Yacoub1 , M . Möbs1 , W . Sterry1 , J . Eberle1 1Charité – Universitätsmedizin <strong>Berlin</strong>, Klinik für Dermatologie, Venerologie<br />

und Allergologie, <strong>Berlin</strong>, Deutschland<br />

Cutaneous T cell lymphomas (CTCL) form a heterogeneous group of<br />

non-Hodgkin lymphomas with primary involvement of the skin. Even<br />

though early stages of CTCL are often indolent over long periods of<br />

time, advanced stages are refractory and difficult to treat. Death ligands<br />

(CD95L and TRAIL) critically contribute to lymphocyte homeostasis<br />

due to induction of apoptosis and may further represent safeguard mechanisms<br />

to prevent lymphoma development. In previous studies, we<br />

characterized CTCL cell lines as resistant to TRAIL-mediated apoptosis<br />

which was correlated to high c-FLIP expression. In the present study,<br />

we investigated the effects of non-steroidal anti-inflammatory drugs<br />

(NSAIDs) as acetylsalicylic acid, sodium salicylate and diclofenac in<br />

CTCL cell lines (HH and MyLa) as well as in tumor T cells from SzS patients.<br />

NSAIDs decreased cell proliferation and induced apoptosis, associated<br />

by caspase-3 processing. Decreased mitochondrial membrane<br />

potential and cytochrome c release were indicative for an involvement<br />

of intrinsic pathways. Furthermore, downregulation of c-FLIP and caspase-8<br />

processing clearly indicated an activation of extrinsic pathways.<br />

Finally, NSAIDs sensitized CTCL cells for TRAIL-induced apoptosis.<br />

In conclusion, the study provides a rational for the use of NSAIDs as<br />

a potentially new therapeutic option for cutaneous T cell lymphomas.<br />

0197<br />

Conditional RNAi-mediated knockdown of osteopontin in<br />

MDA-MB-231 breast cancer subclones in vitro<br />

*M . Kovacheva1 , S . Berger2 , M . Berger1 1DKFZ, Toxikologie and Chemotherapie, Heidelberg, Deutschland,<br />

2Zentralinstitut für Seelische Gesundheit, Molekularbiologie, Mannheim,<br />

Deutschland<br />

Breast cancer is the second most common cause of cancer-related death<br />

in women. This is due to metastasis which renders breast cancer virtually<br />

incurable. In breast cancer progression, high levels of osteopontin<br />

(OPN) correlate with poor prognosis. As a member of the SIBLING<br />

(small integrin-binding ligand N-linked glycoprotein) family of glycoproteins,<br />

OPN has a pivotal role in the processes of migration and<br />

invasion, which are essential for metastasis formation.<br />

The combination of RNA interference (RNAi) with the tetracyclinecontrolled<br />

transcription activation (tet) system is a powerful method<br />

for conditional gene inactivation in cultured cells. Here, we aimed to<br />

investigate, whether the conditional RNAi-mediated knockdown of<br />

OPN would impair the metastatic properties of invasive breast cancer<br />

cells. Therefore, two MDA-MB-231 subclones (OPN clones 1 and 2) were<br />

generated, in which the tetracycline-dependent transactivator tTA controls<br />

the simultaneous expression of the red fluorescent protein mCherry,<br />

firefly luciferase and a highly efficient and specific miRNA targeting<br />

OPN mRNA.<br />

Knockdown efficiency was determined by quantifying OPN mRNA<br />

and protein concentrations after cultivating respective cell clones for<br />

either 3 or 6 days with or without doxycycline in the medium. Here,<br />

OPN mRNA concentration was reduced by 62–96% after 3 days and<br />

85–98% after 6 days respectively. However, a decrease in OPN protein<br />

was only observed after 6 days. The decrease in OPN expression led to<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

95


Abstracts<br />

a reduction in colony formation by 55–60 % and to a similar inhibition<br />

of spontaneous migration, determined 9 days after initiation of OPN<br />

miRNA expression. However, there was no significant influence on proliferation<br />

as assessed by MTT assay after cultivating the respective cell<br />

clones for 3 and 6 days in the same media.<br />

In conclusion, the conditional knockdown of OPN in breast cancer subclones<br />

resulted in a distinct reduction of OPN mRNA and protein concentrations.<br />

This effect was associated with significantly reduced migration<br />

and colony formation, but there was no effect on cell proliferation.<br />

0202<br />

TPX2 as potential target in breast cancer treatment<br />

*C . Wilde1 , S . Berger2 , M . Berger1 1 2 DKFZ, Chemotherapie und Toxikologie, Heidelberg, Deutschland, ZI-<br />

Mannheim, Mannheim, Deutschland<br />

The microtubule-associated protein TPX2, a key component in mitotic<br />

cell division and cell cycle progression, is discussed as a potential<br />

therapeutic target in different types of human cancer. Several studies<br />

implicated that there is a TPX2 over-expression in tumor cells, which<br />

is considered to be important for the maintenance of the tumorigenic<br />

state. Our intention was to evaluate the expression and role of TPX2 as<br />

a target for new anti-mitotic therapies in breast cancer.<br />

TPX2 expression was compared in cell lines including the non-tumorigenic<br />

cell line MCF-10A and in various breast cancer cell lines as well<br />

as in primary patient samples. The expression was determined at the<br />

protein (Western Blot) and mRNA (real-time PCT) levels. There was<br />

only a marginal TPX2 expression in MCF-10A cells, whereas the various<br />

breast cancer cell lines showed a significant up-regulation of TPX2 expression<br />

both at RNA and protein levels. In contrast, Western blot and<br />

real-time PCR analysis from fresh frozen tissue samples of breast cancer<br />

patients showed low TPX2 levels.<br />

To investigate the functional role of TPX2 in breast cancer cells, two<br />

MDA-MB-231 cell lines with a conditional TPX-knockdown were generated.<br />

In these cell lines TPX2 production can be inhibited by a TPX2specific<br />

miRNA under the transcriptional control of the TetOff system.<br />

The efficiency of the knockdown was also determined by real-time PCR<br />

and Western Blot.<br />

In the absence of doxycycline an almost complete knockdown could be<br />

seen both at RNA and protein levels. TPX2 expression was suppressed<br />

up to 97% in MDA-MB-231-TPX-54-1.1 and up to 99% in MDA-MB-231-<br />

TPX-23-25. This effective inhibition of TPX2 production led to an increased<br />

number of apoptotic cells as identified by life cell imaging. In<br />

addition, MTT assay showed a significantly reduced cell proliferation of<br />

34% (MDA-MB-231-TPX-54-1.1) and 19% (MDA-MB-231-TPX-23-25) at<br />

three days after induction of the knockdown.<br />

In conclusion TPX2 knockdown causes apoptosis and has an anti-proliferative<br />

effect. TPX2 expression was more pronounced in breast cancer<br />

cell lines than in primary tissues from breast cancer patients. The value<br />

of TPX2 as potential target for breast cancer treatment needs further<br />

consideration.<br />

0204<br />

Estrogen receptor β agonists reduce invasiveness of triple-negative<br />

human breast cancer cell lines<br />

*C . Lattrich1 , J . Häring1 , R . Meier1 , S . Schüler1 , A . Stegerer1 , O . Treeck1 , O . Ortmann1<br />

1University Medical Center Regensburg, Department of Obstetrics and<br />

Gynecology, Regensburg, Deutschland<br />

Objective. Estrogen receptor β (ERβ) is expressed in the majority of triple-negative<br />

breast cancer cases. In this study, we tested to what extent<br />

treatment of triple-negative breast cancer cell lines with two highly specific<br />

ERβ agonists would affect their invasiveness and motility.<br />

96 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Methods. Cellular invasion was assessed by means of a modified Boyden<br />

chamber with a membrane pore size of 8 µm coated with a soluble basement<br />

membrane extract. Migration was measured using the same model<br />

system without ECM. Relative cell numbers were assessed by means<br />

of the fluorimetric Cell Titer Blue Assay (Promega). Gene expression<br />

was examined by RT-qPCR using a Light Cycler 2.0 device (Roche) and<br />

by Western Blot analysis.<br />

Results. Selective ERβ agonist ERB-041 significantly reduced invasiveness<br />

of the triple negative breast cancer cell lines MDA-MB-231 and<br />

HS578T in vitro in a dose-dependent manner. ERB-041 inhibited invasion<br />

of MDA-MB-231 cells down to 70.7% (p


iment demonstrated that overexpression of Sox9 gene supports tumor<br />

growth and metastasing.<br />

Conclusions. Proangiogenic genes such as VEGF are upregulated in<br />

the more aggressive cell line L3.6pl, compared to FG. We identified a<br />

gene cluster that is constitutively upregulated in L3.6pl, independent<br />

of hypoxia. These genes are controlled by the transcription factor Sox9<br />

physically binding on their promoters. A Sox9 promoter differential<br />

methylation may be the reason for the escape from hypoxic regulation<br />

in L3.6pl cells and thus may contribute to the higher angiogenic and<br />

metastatic potential.<br />

0231<br />

<strong>Cancer</strong> initiating cells in colon and pancreatic cancer are resistant<br />

to nutrient stress – a characteristic for tumor growth?<br />

*T . Grimmig1 , J . Schmitt1 , N . Matthes1 , M . Faber1 , C .-T . Germer2 , M . Gasser2 ,<br />

A .M . Waaga-Gasser1 1Universitätsklinikum Würzburg, Chirurgische Klinik I, Molekulare Onkoimmunologie,<br />

Würzburg, Deutschland, 2Universitätsklinikum Würzburg,<br />

Chirurgische Klinik I, Würzburg, Deutschland<br />

Background. Recent findings suggest that conditions of ischemia and<br />

low nutrient tumor microenvironment stimulate tumor growth and<br />

involve survival advantage of pluripotent and resistant tumor cells. The<br />

aim of this study was to determine the presence of different Toll-like<br />

receptors (TLR), heat shock proteins (Hsp), and markers for putative<br />

tumor initiating cells (CD133 and multidrug resistance proteins ABCB1<br />

and ABCB5) in colon and pancreatic cancer cells suffering from nutrient<br />

stress.<br />

Methods. To mimic pathophysiological nutrient stress in the tumor microenvironment<br />

human colon and pancreatic cancer cell lines (HT-29<br />

and PANC1, MIA PaCa-2) were cultured using different media providing<br />

varying conditions of nutrient stress (basic culture medium containing<br />

10% FCS or 10% FCS and 2.5% HS basic culture medium without<br />

serum and PFHM-II protein-free hybridoma medium). Cells were kept<br />

in each medium for 24, 48, and 72 hours before harvesting and protein<br />

(Western Blot) and gene analysis (RT-qPCR) were performed for their<br />

TLR 1-10, Hsp70, Hsp90, ABCB1 and ABCB5, and CD133 profiles.<br />

Results. Compared to normal nutrient cell conditions TLRs were found<br />

at higher protein and gene expression levels in cells exposed to starvation.<br />

Upregulated CD133, ABCB1 and ABCB5 levels were observed as well<br />

as rising levels of Hsp70 and Hsp90. Expression levels varied between<br />

both cell lines and were dependant on the duration of nutrient stress.<br />

Conclusions. TLR, Hsp70 and Hsp90, as well as CD133, ABCB1 and<br />

ABCB5 expression characterizes surviving cells that are relatively unsusceptible<br />

to starvation. This indicates that a minor population of cells<br />

within a tumor is comparably resistant to nutrient stress through specific<br />

repair mechanisms compared to the bulk of differentiated tumor<br />

cells. Thus through this survival advantage this cell population may<br />

contribute to further metastatic growth in vivo.<br />

0249<br />

Estrogen receptor targeting by raloxifene potently inhibits<br />

human pancreatic adenocarcinoma growth<br />

*H . Seeliger1 , N . Seel1 , P . Camaj1 , I . Ischenko1 , K .-W . Jauch1 , C .J . Bruns1 1Klinikum der Universität München, Chirurgische Klinik und Poliklinik,<br />

München, Deutschland<br />

Background. The role of estrogen receptor (ER) signaling in pancreatic<br />

cancer is unknown. Recently, we demonstrated that expression of<br />

the isoform ER beta correlates with an adverse prognosis in patients<br />

with pancreatic cancer. Here, we show that raloxifene, a specific estrogen<br />

receptor modulator (SERM), suppresses in vitro and in vivo tumor<br />

growth by interfering with ER beta signaling in human pancreatic adenocarcinoma.<br />

Methods. The human pancreatic adenocarcinoma cell line L3.6pl was<br />

cultured and exposed to raloxifene in vitro, and cell proliferation was<br />

determined by the BrdU assay. To analyze the specificity of raloxifene<br />

induced effects, ER knockdown was performed using siRNA specific<br />

for ER alpha and ER beta. In an in vivo model of orthotopic tumor xenografts<br />

in nude mice, raloxifene was administered daily, and tumor<br />

growth was monitored. Expression of ER beta and the proliferation<br />

marker Ki-67 were determined by immunohistochemistry.<br />

Results. Raloxifene treatment resulted in a potent, dose dependent reduction<br />

of proliferation in vitro over a nanomolar dose range. This effect<br />

was completely reversed by siRNA knockdown of ER beta, but not<br />

ER alpha, indicating an ER isotype specific signaling. In vivo, orthotopic<br />

tumor growth, as well as lymph node and liver metastases, was<br />

significantly suppressed in raloxifene treated mice. Analogous to the in<br />

vitro data, Ki-67 expression in vivo was significantly reduced in raloxifene<br />

treated mice, while ER beta expression was not changed in vivo.<br />

Conclusions. Inhibition of ER beta signaling by raloxifene results in a<br />

potent reduction of human pancreatic adenocarcinoma growth in vitro<br />

and in vivo. Treatment with SERMs may be an attractive therapeutic<br />

option in subjects expressing the ER beta isotype.<br />

0261<br />

shRNA mediated knock down of S100A4 in colorectal carcinoma<br />

reduces metastasis formation in vivo<br />

*M . Dahlmann1 , U . Sack2 , P . Herrmann1 , M . Lemm3 , I . Fichtner3 , P .M . Schlag4 ,<br />

U . Stein2,1 1Charité Universitätsklinikum, Chirurgische Onkologie, <strong>Berlin</strong>, Deutschland,<br />

2 3 MDC-<strong>Berlin</strong>, Chirurgische Onkologie, <strong>Berlin</strong>, Deutschland, MDC-<strong>Berlin</strong>,<br />

Experimentelle Pharmakologie, <strong>Berlin</strong>, Deutschland, 4Charité Universitätsklinikum,<br />

Comprehensive <strong>Cancer</strong> Center, <strong>Berlin</strong>, Deutschland<br />

Colon carcinoma, due to its metastases, is still a major cause of death<br />

even after the excision of the primary tumor. The small calcium binding<br />

protein S100A4 was found to be an indicator for metachronous metastasis<br />

formation. Its expression level positively correlates to the metastatic<br />

potential of human colon cancer, where it promotes cell motility and<br />

invasion, and negatively affects the survival of colon cancer patients. A<br />

therapeutic decrease of S100A4 expression in patients could therefore<br />

result in less metastasis formation and increased survival rates. In the<br />

present study, we used shRNA expressing plasmids to inhibit S100A4<br />

expression in the colorectal carcinoma cell line HCT116 and observed<br />

a clear reduction of cellular migration and invasion in vitro to about<br />

45% and 55%, respectively, while proliferation of the cell lines was not<br />

affected. Intrasplenical transplantation of either S100A4 knock down or<br />

control cells in mice reduced the formation of liver metastases in correlation<br />

with reduced S100A4 expression.<br />

We also evaluated the therapeutic potential of systemically applied<br />

shRNA expressing plasmids via repeated hydrodynamics-based tail<br />

vein injection of plasmid DNA, expressing either specific S100A4shRNA<br />

or unspecific control shRNA. Mice with intrasplenically transplanted<br />

HCT116-LUC cells showed a 3-fold decrease in metastasis formation<br />

in the liver, when treated with S100A4-shRNA plasmids. The<br />

average tumor size of treatment and control group was comparable,<br />

but showed a decrease of S100A4 and MMP-9 expression levels to 60%<br />

and 20%, respectively, when treated with S100A4-shRNA plasmids. The<br />

developed liver metastases showed a similar reduction in S100A4 expression,<br />

while the decrease in MMP-9 expression was less pronounced<br />

(50% and 60%, respectively). In summary, the knockdown of S100A4 via<br />

systemic application of plasmid DNA, expressing gene specific shRNA,<br />

resulted in a decrease of metastasis formation in a xenograft mouse model<br />

of colon cancer.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

97


Abstracts<br />

0286<br />

<strong>Cancer</strong>-retina antigens in pancreatic adenocarcionoma: impact<br />

of guanylyl cyclase 1<br />

S . Karakhanova1 , J . Werner1 , *A . Bazhin1 1Uniklinikum Heidelberg, Chirurgische Klinik, Heidelberg, Deutschland<br />

Background and aims. Recently, we have shown that the key photoreceptor<br />

proteins, that are normally restricted to retinal cells, function in<br />

cancer cells as cancer-retina antigens (CRA). The aim of the work was<br />

to investigate the phenomenon of CRA in pancreatic carcinoma cells<br />

with a focus on function of guanylyl cyclase 1 (GC1) in the tumor cells.<br />

Methods. shRNA plasmids were used to knock-down the GC1 expression.<br />

RT-PCR, Western blotting, cyto/histoimmunochemistry, Ca2+<br />

and cGMP measurement and FACS analysis were applied for in vitro<br />

experiments. An orthotopic mouse model of pancreatic carcinoma was<br />

used for in vivo experiments.<br />

Results. We showed that CRA are expressed in pancreatic carcinoma<br />

cell lines and tumors. Moreover, GC1, phosphodiesterase 6 and transducin<br />

are expressed in pancreatic cancer at a high frequency. Expression<br />

of these antigens leads to autoantibody production in the pancreatic<br />

cancer patients. Besides, we found that GC 1 is functional in pancreatic<br />

carcinoma cells, and this enzyme is involved in cGMP metabolism and<br />

Ca2+ accumulation in the tumor cell lines. Knocking-down of the enzyme<br />

affect viability, proliferation, radiosensitivity, migration and invasion<br />

of pancreatic carcinoma cell in vitro. The GC 1 knocking-down<br />

reduces the tumor volume, appearance of peritoneal carcinosis and metastases,<br />

and has a tendency to prolong a survival of the tumor-bearing<br />

mice in an orthotopic model of pancreatic cancer. Moreover, inhibition<br />

of GC1 leads to better activation of CD4+ T cells by tumor cells.<br />

Conclusions. We suggest that the aberrant expression of GC1 in pancreatic<br />

carcinoma cells is important for the tumor biology. Establishing of<br />

new methods for an in vivo knocking-down of GC1 and searching a<br />

down-stream molecular partner of GC1 could be important for the pancreatic<br />

carcinoma treatment.<br />

0296<br />

Cell-in-cell structures in tumours<br />

*L . Distel1 , M . Büttner2 , M . Schwegler1 , F . Putz1 1 2 Strahlenklinik, Strahlenbiologie, Erlangen, Deutschland, Universität Erlangen,<br />

Pathologie, Erlangen, Deutschland<br />

Objective. Cell-in-cell structure means the entire internalisation of a<br />

cell by another cell. This phenomenon is mainly found in tumour cells,<br />

especially in malignant exudate cells and sporadic in tumour tissue<br />

specimen. Entosis was recently identified to be a mechanism for the<br />

generation of cell-in-cell structures. This process is regarded as a nonapoptotic<br />

cell death. Some studies exist, describing cell-in-cell structures<br />

generated by in vitro experiments. Additionally, there are several<br />

case reports on cell-in-cell structures in tumour tissues. To study the<br />

appearance of cell-in-cell structures we have scanned tumour tissue<br />

sections. Cell-in-cell positive tumours were stained for apoptosis and<br />

cell adhesion molecules.<br />

Methods. Tumour tissue sections (2 µm thickness) of three individuals<br />

were stained immunohistochemical for cleaved caspase-3, β-Catenin<br />

and E-Cadherin. The total tissue sections were scanned with high resolution<br />

(Mirax Scan, Zeiss, <strong>German</strong>y) and the corresponding tumour<br />

regions with different stainings were analysed and compared to each<br />

other.<br />

Results. Two renal carcinoma and one metastasis of an unknown primary<br />

cancer were identified harbouring numerous cell-in-cell structures.<br />

Cell-in-cell structures were clustered in special regions of the tissue<br />

specimens with a frequency of up to one cell-in-cell per ten cells. Some<br />

cell-in-cells were very complex with more than one cell internalised in<br />

another cell and cells with an internalised cell having internalised another<br />

cell. The apoptotic rates in the three tumours were 5%, 4% and 1%,<br />

98 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

however only very small numbers of cell-in-cells were involved in apoptotic<br />

events. Regularly the internalised cells were non apoptotic. The regional<br />

distribution of cell-in-cell structures hints on special alterations<br />

of the cells in these regions. Therefore the tissue specimen were stained<br />

for adhesion molecules. In all three tumour types cells were positive for<br />

β-Catenin and E-Cadherin. Cells with cell-in-cell had no different staining<br />

for β-Catenin and E-Cadherin compared to non cell-in-cell cells.<br />

Conclusion. Entosis or cell-in-cell may be a cell death modality occurring<br />

in tumour cells as frequently, or even more frequently than apoptosis.<br />

A simultaneous apoptotic event in the internalised cell seems to<br />

be a very rare event.<br />

0303<br />

Retinoid receptors in pancreatic cancer: Differential expression<br />

in malignant and healthy pancreatic cells and link to the epithelial-mesenchymal<br />

transition<br />

*T . Bleul1 , J . Werner1 , A . Bazhin1 1Universitätsklinikum Heidelberg, Chirurgie, Heidelberg, Deutschland<br />

Background and aims. Pancreatic adenocarcinoma is a cancer with<br />

extremely poor prognosis and limited therapeutic options. Although<br />

preclinical experiments with retinoids showed beneficial effects of retinoid<br />

treatment, clinical studies had disappointing results. However,<br />

little quantitative data is available concerning retinoid receptor expression<br />

in healthy pancreas compared to pancreatic carcinoma. The main<br />

aim of this work was to study comprehensively the retinoid receptor<br />

expression in order to evaluate their role in pancreatic cancer and try to<br />

find reasons for the negative clinical results.<br />

Methods. Nine human pancreatic carcinoma cell lines and one healthy<br />

cell line were used. Expression of the retinoic acid receptor (RAR)<br />

and retinoic X receptor (RXR) subtypes (α, β, γ) was quantified on RNA<br />

level in all cell lines as well as in the murine pancreatic carcinoma samples<br />

using quantitative real-time PCR. On protein level the expression<br />

of RAR and RXR subtypes was studied with immunocytochemistry in<br />

all cell lines. As differentiation markers cytoceratin 7 and carbonic anhydrase<br />

II were analyzed by immunocytochemistry. To determine epithelial-mesenchymal<br />

transition vimentin expression was assessed with<br />

immunocytochemistry. Cytotoxicity of retinoic acid was tested with the<br />

MTT assay and the effects on proliferation with the BRDU assay.<br />

Results. On protein level RAR α and β is significantly lower expressed in<br />

seven out of nine pancreatic tumor cell lines compared to healthy cells.<br />

No difference in the expression occurred between primary tumor and<br />

metastatic cell lines on RNA and protein level. Retinoic acid treatment<br />

of pancreatic cancer cell lines with high and low expression of RAR showed<br />

neither cytotoxic, nor antiproliferative, nor differentiating effects.<br />

A negative correlation between vimentin expression and RAR α and β<br />

expression was found. In the orthologous system of murine pancreatic<br />

cancer RAR α and β as well as RXR α and β is significantly lower expressed<br />

in tumor samples compared to healthy pancreas at RNA level.<br />

Conclusions. Our results show that malignant transformed pancreatic<br />

cells express less retinoid receptors than their healthy counterparts.<br />

Mesenchymal transition leads to decreased RAR α and β expression. It<br />

is tempting to speculate that the decreased retinoid receptor expression<br />

could play an important role in pancreatic cancer and it would be a reason<br />

for the negative clinical results of pancreatic carcinoma treatment<br />

with retinoids.


0328<br />

Differential Daxx isoform expression in renal cell and colorectal<br />

carcinoma<br />

*S . Funke1 , N . Wethkamp1 , S . Heikaus1 , K .-L . Schäfer1 , H .E . Gabbert1 ,<br />

C . Mahotka1 1Universitätsklinikum Düsseldorf, Institut für Pathologie, Düsseldorf,<br />

Deutschland<br />

Aims. Death associated protein (Daxx) is an important transcriptional<br />

co-repressor for a large number of genes, mostly related to apoptosis.<br />

Daxx interacts with p53 and represses its transcriptional activity. Alternative<br />

splicing of the Daxx results in the generation of a c-terminally<br />

truncated and modified isoform termed Daxx-β. According to the new<br />

C-terminus, Daxx-β shows a markedly reduced affinity to PML and p53.<br />

Consequently, in contrast to Daxx, Daxx-β is unable to repress transcriptional<br />

activity of p53. As deregulation of p53 is closely related to<br />

carcinogenesis, alternative splicing of Daxx may also participate in tumour<br />

development and progression.<br />

Methods. Here, we examined the in vivo splicing pattern of Daxx and<br />

Daxx-β during renal cell and colon carcinoma progression using kinetic<br />

RT-PCR.<br />

Results. Both Daxx transcripts are expressed in epithelia from kidney<br />

and colon, in non-neoplastic as well as in tumour tissue. Interestingly,<br />

in renal cell carcinoma a significant reduction of both isoforms was notable<br />

whereas in colorectal carcinoma a different Daxx splicing pattern<br />

was evident with only Daxx-β being transcriptionally reduced. In both<br />

tumour types, these alterations could be found already at early stages<br />

(pT1/2) and did not further change in late stages (pT3/4).<br />

Conclusion. Therefore, our results indicate for the first time that differential<br />

Daxx isoform expression is associated with tumourigenesis of<br />

renal cell and colorectal carcinoma and may serve as a novel biomarker<br />

on mRNA level.<br />

0336<br />

Inhibition of FGFR impairs angiogenic signaling in human HCC<br />

cell lines and stromal cells<br />

*T .P . Scheller1 , C . Moser1 , M . Mycielska1 , C . Hellerbrand2 , A .A . Schnitzbauer1 ,<br />

E .K . Geissler1 , H .-J . Schlitt1 , S .A . Lang1 1 2 Universität Regensburg, Chirurgie, Regensburg, Deutschland, Universität<br />

Regensburg, Innere Medizin I, Regensburg, Deutschland<br />

Background. Expression of receptors for fibroblast growth factors<br />

(FGFR) and their corresponding ligands have been associated with tumor<br />

growth in human hepatocellular carcinoma (HCC). Furthermore,<br />

hypervascularisation is a typical characteristic of HCC and activation<br />

of the FGF/FGFR system is a crucial event in tumor angiogenesis via<br />

effects on both, tumor cells and stromal cells. Therefore, we sought to<br />

evaluate the effects FGFR inhibition on cancer cells and stromal cells in<br />

a model of HCC.<br />

Methods. For the experiments HCC cell lines (Huh-7, HepG2), stromal<br />

cells (endothelial cells (EC), vascular smooth muscle cells (VSMC), hepatic<br />

stellate cells (HSC)) and the FGFR inhibitor BGJ398 (Novartis Oncology,<br />

Basel) were used. Effects of targeting FGFR on growth of cells<br />

were determined by MTT assays. Inhibition of constitutive and growth<br />

factor induced cell motility was investigated using modified Boyden<br />

Chamber assays. Activation of signaling pathways and expression of<br />

trasncription factors upon FGFR inhibition was assessed by Western<br />

Blot analyses. Effects on expression of vascular endothelial growth factor-A<br />

(VEGF-A) and FGFs were determined by RT-RCP and ELISA,<br />

respectively.<br />

Results. Targeting FGFR system with BGJ398 impaired growth of tumor<br />

cells and ECs in dose-dependent manner, whereas only minor effects<br />

were observed on VSMC and HSCs as determined by MTT assays. In<br />

addition, motility of tumor cells and stromal cells was significantly reduced<br />

(p


Abstracts<br />

0351<br />

The pandeacetylase inhibitor panobinostat induces autophagy<br />

related factors in liver cancer cells<br />

*P . Di Fazio1 , R . Montalbano1 , S . Jabari2 , K . Quint1,2 , M . Ocker1 1Philipps University of Marburg, Institute for Surgical Research, Marburg,<br />

Deutschland, 2Universität Erlangen-Nürnberg, Institut für Anatomie, Erlangen,<br />

Deutschland<br />

Background. Liver cancer, placed as the 5th common malignant tumor<br />

entity, has rising incidence rates also in Western countries. Panobinostat<br />

(LBH589, Novartis Oncology), a pandeacetylase inhibitor, represents<br />

a new agent with a promising future in liver cancer therapy. We have<br />

previously demonstrated that panobinostat is able to induce cell death<br />

through activation of ER stress related apoptotic pathways. Panobinostat<br />

also significantly reduced the growth of HepG2 xenografts in nude<br />

mice (Cell Oncol 2010, 32:285–300). We, here, clarify the implication of<br />

autophagy mechanisms into cell demise mediated by panobinostat.<br />

Materials and methods. HepG2 (p53 wt) and Hep3B (p53 null) were<br />

treated for 72 hours with panobinostat and cell death was quantified<br />

through FACS with propidium iodide staining and CK18 fragmentation<br />

staining. Impedance based real-time cell analysis (Xcelligence Roche)<br />

was performed to monitor cell viability after panobinostat treatment.<br />

The expression of autophagy related factors was analyzed through RTqPCR,<br />

western blot and immunofluorescence based cytochemistry;<br />

transmission electron microscopy (T.E.M.) was performed to monitor<br />

autophagosome formation.<br />

Results. Panobinostat induced cell death in a dose and time dependent<br />

manner. Autophagy related factors Atg5, Beclin and its activators Ambra,<br />

p62 and UVRAG were upregulated after 48 hours of treatment.<br />

We also observed significant increase of p73 expression in Hep3B cells<br />

after 24 hours of treatment. Immunofluorescence based cytochemistry<br />

showed a modification of the ubiquitous cytosolic distribution of Beclin<br />

and LC3B in both cell lines to a defined spot formation after treatment<br />

with panobinostat, indicating a probable autophagosome formation.<br />

Western blot analysis also demonstrated an increase of Beclin<br />

and LC3-I and LC3-II; no variations in the level of Apg12 were detected.<br />

T.E.M. showed double-membrane cellular vescicles, after treatment<br />

with panobinostat, which represent autophagosomes.<br />

Conclusion. Panobinostat treatment determines the involvement of autophagy<br />

related mechanisms in an ER stress related apoptosis scenario.<br />

The wide spectrum of mechanisms of action of panobinostat needs to<br />

be further investigated.<br />

0356<br />

The pandeacetylase inhibitor panobinostat determines downregulation<br />

of oncogenic miRNAs in HCC cells<br />

A . Henrici1 , M . Ocker1 , *P . Di Fazio1,2 1Philipps University of Marburg, Institute for Surgical Research, Marburg,<br />

Deutschland, 2Universität Erlangen-Nürnberg, Institut für Anatomie, Erlangen,<br />

Deutschland<br />

Background. miRNAs represent new targets for future cancer therapy.<br />

It has been shown that they possess tumorigenic and tumorsuppressor<br />

activity. In particular, miR-19a, miR-19b and miR-30a promote tumor<br />

progression by blocking the translation of proteins related to apoptotic<br />

and autophagic cell death like APAF1, PAK6 and Beclin1 in many solid<br />

tumors. We have previously shown that panobinostat, a potent pandeacetylase<br />

inhibitor, was able to promote the modulation of hsa-let7b and<br />

its related target HMGA2 favouring the block of cellular proliferation<br />

in liver cancer cells (HCC). Here we clarify, for the first time, that panobinostat<br />

is responsible for downregulating the above mentioned oncogenic<br />

miRNAs with subsequent modulation of their targets in HCC<br />

cell lines.<br />

Material and methods. HepG2 (TP53 wt) and Hep3B (TP53 null) liver<br />

cancer cells were treated with 0.1 mM panobinostat for 6–48 hours.<br />

100 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Quantitative RT-PCR was used to determine the expression of miR-19a,<br />

miR-19b, miR-30a, and their precursor transcripts; moreover their targets<br />

were also quantified.<br />

Results. We demonstrate that panobinostat treatment causes a downregulation<br />

of miR-19a, miR-19b and their precursors. Panobinostat treatment<br />

determines also a downregulation of miR-30a while its precursor<br />

is detectable neither in nuclear nor in cytosolic compartment. miRNAs<br />

targets expression was differently affected in the two cell lines.<br />

Conclusion. Panobinostat negatively regulate oncogenic miRNAs by favouring<br />

the expression of their targets. The modulation of these miR-<br />

NAs has been shown for the first time in liver cancer cells and it needs to<br />

be further investigated. Panobinostat represents a promising modulator<br />

of miRNAs in a cancer related scenario.<br />

0362<br />

Overexpression of Hepatitis B virus envelope proteins induce<br />

endoplasmic reticulum-mediated stress pathways in liver cancer<br />

cell lines<br />

*R . Montalbano1 , P . Di Fazio1 , D . Glebe2 , M . Ocker1 1University of Marburg, Institute for Surgical Research, Marburg, Deutschland,<br />

2University of Gießen, Institute of Medical Virology, Gießen, Deutschland<br />

Background. Hepatocellular carcinoma (HCC) is the 5th most common<br />

malignancy worldwide. More than 90% of HCCs develop in cirrhotic<br />

livers on a background of chronic liver disease, esp. infection with the<br />

Hepatitis B virus (HBV). HBV represents the most common chronic<br />

viral infection with about 370 million people being affected worldwide.<br />

Although HBV has been documented to cause HCC, the exact role of<br />

HBV in the development of HCC remains enigmatic. HBV is a hepatotropic<br />

virus with an outer lipoprotein envelope and an inner core bearing<br />

the viral genome. HBV envelope consists of 3 co-carboxyterminal<br />

proteins, the small (SHBs), the middle (MHBs) and the large surface<br />

protein (LHBs) that are cotranslationally inserted into the endoplasmic<br />

reticulum (ER) as transmembrane (glycol-)proteins. When overexpressed,<br />

all three viral proteins are secreted as non-infectious subviral particles<br />

via the secretory pathway, while only virions containing the viral<br />

core are secreted by multivesicular bodies (MVB). The LHBs cannot build<br />

viral particles by itself, but needs SHBs or MHBs for proper propagation.<br />

A massive storage of HBV envelope proteins was reported to lead<br />

to cell stress causing cell death and sustained inflammatory responses.<br />

Here we investigate if overexpression of L and S proteins in liver cancer<br />

cells can induce ER-stress and trigger the expression of genes involved<br />

in this pathway.<br />

Methods. Human HCC cells HuH-7 was cultured under standard conditions<br />

and transfected with pSVL and pSVBX24H plasmids, overexpressing<br />

only LHBs and SHBs, respectively. Impedance based real-time<br />

cell analysis was performed to continuously monitor cell viability. ERstress<br />

factors were evaluated by RT-PCR, FACS and IF analysis. ER-staining<br />

was performed by IF analysis.<br />

Results. Cell based impedance analysis of HuH-7 cells showed that the<br />

transfection with the plasmid encoding LHBs caused a reduction of cell<br />

growth comparable with the effect of 10 nM thapsigargin, an ER-stress<br />

inducer. Interestingly, the SHBs expression was cytostatic. The expression<br />

of both viral proteins induced an increase of BiP and CHOP mRNA<br />

levels after 24–96 h of transfection, while the protein level was stable. ER<br />

detection by IF revealed an increase of the selective fluorescent dye in<br />

cells transfected with LHBs.<br />

Conclusions. Overexpression of HBV envelope proteins LHBs and SHBs<br />

activate ER-stress markers in HuH-7 cells. Further investigations are<br />

needed to better clarify their mechanism of action.


0364<br />

Formation and incidence of cell-in-cell structures in tumor and<br />

normal tissue cells in vitro<br />

*M . Schwegler1 , B . Abendroth2 , F . Putz2 , L . Distel1 1Universitätsklinikum Erlangen, Strahlenklinik, Erlangen, Deutschland,<br />

2Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Deutschland<br />

Objective. Internalisation of cells is a phenomenon called cell cannibalism<br />

or entosis that has been recently described. These cell-in-cell structures<br />

(CIC) have been detected in tumor tissue sections and studied by<br />

in vitro experiments. CIC structure has a characteristic appearance.<br />

The cell is filled with a cell inside a vacuole that pushes the nucleus crescent<br />

shaped to one side. CIC is regarded to be one type of cell death<br />

modality. Our question was whether CIC formation is common among<br />

tumor cells and whether cells from normal tissue are able to form CIC.<br />

Methods. The precondition for cell uptake is cell adhesion. For quantification<br />

of adhesion two samples of tumor cells were stained either with<br />

the life cell dye CellTrace Oregon Green or CellTrace Far Red, mixed<br />

and analyzed by flow cytometry before and after 90 minutes of coincubation.<br />

One of the so dyed samples was heat-treated (56°C, 45 min) to<br />

stimulate incorporation. Microscopic analysis followed 4 hours of coincubation.<br />

This experiment was repeated 3 times with 5 tumor cell lines,<br />

one primary tumor cell line, one lymphoblastoid cell line and 3 primary<br />

skin fibroblasts cell lines. Additionally the process of incorporation was<br />

imaged via life-cell microscopy.<br />

Results. Flow cytometry analysis showed a significant increase of adhesion<br />

between untreated and heat-treated samples of all cell lines. All<br />

cell lines were able to form CIC structures. Using an image, analysis<br />

software CIC rates of 1000–2500 cells were quantified. Highest rates<br />

were among the tumor cell lines (e.g. pancreatic carcinoma cell line<br />

BxPC-3: 2.71%), lower rates in the fibroblasts (e.g. cell line GP: 2.17%) and<br />

lowest in the lymphoblastoid cell line (0.66%). The number of cell-incell<br />

structures found via microscopy correlated with the degree of adhesion<br />

quantified via FACscan. We observed that 41.7% of viable green<br />

cells adhered to necrotic red cells of the pancreatic carcinoma cell line<br />

BxPC-3, 37.3% of the primary skin fibroblast cell line GP and only 9.4%<br />

of the lymlphoblastoid cell line SBL-1. Engulfment of early necrotic cells<br />

seems to be a membrane-dependent process whereas damaged cells<br />

which had lost completely their shape and membrane integrity could<br />

not be taken up.<br />

Conclusion. Not only tumor cells but even normal tissue cells and lymphoblastoid<br />

cells are able to form CIC. CIC seems to be more frequent<br />

in tumor cell lines but common to a variety of cell types and may be an<br />

underestimated type of cell death.<br />

0372<br />

Activation of the human immune system via Toll-like receptors<br />

by the oncolytic parvovirus H-1 and its combination with chemotherapeutic<br />

or targeted agents<br />

*M . Sieben1 , S . Roth1 , F . Springsguth1 , C . Dinsart2 , P .R . Galle1 , J . Rommelaere3 ,<br />

M . Möhler1 1Universitätsmedizin Mainz, I . Medizinische Klinik und Poliklinik, Mainz,<br />

Deutschland, 2<strong>German</strong> <strong>Cancer</strong> Research Center, Infection and <strong>Cancer</strong><br />

Program, Department F010 , Heidelberg, Deutschland, 3<strong>German</strong> <strong>Cancer</strong><br />

Research Center, Institut National de la Santé et de la Recherche Médicale<br />

Unité 701 , Heidelberg, Deutschland<br />

Background. Promising new approaches to tumor-directed therapy include<br />

oncolytic parvoviruses since they also increase the host immune<br />

response by priming effector immune cells against the tumors. During<br />

the activation of dendritic cells (DC) by H-1PV-induced tumor cell lysates<br />

(TCL) the functional role of Toll-like receptors (TLR) and their<br />

signaling pathways is yet unknown. Since H-1PV kills human cancer<br />

cells using different pathways than other anticancer therapies, we eva-<br />

luated the immunologic effects of H-1PV induced TCL for efficient human<br />

antitumor immune responses. Thus, we explored the molecular<br />

interactions and synergistic effects between H-1PV, chemotherapeutic<br />

agents and the targeted agent sunitinib as a typical molecule of the new<br />

multi-tyrosine kinase inhibitors (TKI) for targeted therapy.<br />

Methods. In view of the stimulatory capacity for DCs by H-1PV-infected<br />

SK29Mel cell lysates, we stably transfected human HEK293 cells expressing<br />

single TLRs, analysed the expression and function of TLRs during<br />

H-1PV infection and determine whether the parvovirus-induced immune<br />

stimulation is correlated with the Toll-like receptor (TLR) signaling<br />

pathways. In addition our human melanoma model enables to study<br />

immune responses in the context of corresponding HLA-restricted<br />

human DCs. In this human tumor model, activation of tumor-specific<br />

autologous CTL clones can also be analysed.<br />

Results. In TLR-transfected HEK293 cells we identified TLR3 and 9<br />

which were clearly activated by H-1PV. Furthermore, NFkB-expression<br />

was increased after H-1PV infection. In addition, TLR expression profiles<br />

of DCs coincubated with H-1PV-infected SK29Mel cells was studied<br />

and showed an increased TLR3 and 9 expression. DC co-cultures with<br />

TCL incubated with H-1PV combined with chemotherapeutic agents or<br />

sunitinib induced effective immune stimulation via a pronounced DC<br />

maturation, significant better cytokine release and cytotoxic T-cell activation.<br />

Again, cytokine levels increased after coculture of autologous<br />

CTLs with DCs stimulated by H-1PV-induced TCLs.<br />

Conclusions. H-1PV induced tumor cell lysates stimulate human immature<br />

DCs and cytotoxic T-cells, at least in major parts by the TLR signaling<br />

pathway. Even more, combined treatment with chemotherapeutic<br />

or targeted agents did not interfere with the pronounced immunomodulatory<br />

properties of H-1PV, but reinforced drug-induced tumor cell<br />

killing. Thus, this very promising approach has also high immunotherapeutic<br />

potentials for tumor patients.<br />

0374<br />

Akt/mTORC1-signalling in human sarcoma cells under heatshock.<br />

*E . Strozyk1 , V . Sujeva1 , E . Kampmann2 , R . Issels2,1 1Helmholtz Zentrum München, KKG Hyperthermie, München, Deutschland,<br />

2Universitätsklinikum Großhadern, Medizinische Klinik und Poliklinik III,<br />

München, Deutschland<br />

Introduction. The completed randomized phase III EORTC/ESHO<br />

intergroup trial (NCT 0003052) showed that regional hyperthermia<br />

(RHT) combined with neo-adjuvant chemotherapy (NAC) improves<br />

response, tumor control and survival of patients with high-risk soft<br />

tissue sarcomas (STS; Lancet Oncol 2010). Recently, the notion is that<br />

grade 2 STS, which are thought to be less chemosensitive than grade 3,<br />

predominantly benefit from the addition of RHT to NAC (ASCO 2011).<br />

Because grading is mainly scored on mitotic index, we investigated the<br />

Akt/mTORC1 pathway, which is involved in proliferation, survival and<br />

protein synthesis, under heat-shock conditions.<br />

Methods. Human sarcoma cell lines were exposed to heat-shock (41.8 or<br />

43°C for 90 or 150 min) and treated with perifosine (0–15 µM) as inhibitor<br />

of Akt-phosphorylation or RAD001 (0.1–10,000 nM) as inhibitor of<br />

mTORC1 kinase-activity. Induction of HSP70 and phosphorylation of<br />

Akt and downstream proteins mTOR, p70S6K and S6 were detected by<br />

immunoblotting. Cytotoxic effects were estimated by using the WST-1<br />

assay, measuring clonogenic survival and recording colony diameters.<br />

Results. Increased HSP70 expression and enhanced phosphorylation<br />

of Akt, mTOR, p70S6K and S6 were immediately detected after heatshock.<br />

Both, inhibition of Akt-phosphorylation by perifosine and inhibition<br />

of mTORC1 kinase-activity by RAD001 led to reduced HSP70-induction.<br />

Perifosine reduced cellular viability dose-depently and yielded<br />

enhanced cytotoxicity when combined with heat-shock. Combining<br />

RAD001 and heat-shock did not enhance cytotoxicity. Chosen concen-<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

101


Abstracts<br />

trations of RAD001 had only marginal effects on clonogenic survival<br />

but reduced colony growth.<br />

Conclusion. Activation of Akt/mTORC1 is important for HSP70-induction<br />

in response to heat-shock. Inhibition of Akt-phosphorylation but<br />

unexpectedly not of mTORC1 kinase-activity reduced survival when<br />

combined with heat-shock. Other targets of Akt besides mTOR might<br />

be essential for surviving cellular stress and are investigated in ongoing<br />

experiments.<br />

0383<br />

CTLA-4 antibodies Tremelimumab and Ipilimumab overcome<br />

tumor-mediated immunsuppressive effects of CTLA-4 on human<br />

dendritic cells<br />

*K . Goepfert1 , P . Schäfer1 , B . Heinrich1 , P . Galle1 , M . Moehler1 1Universitätsmedizin Mainz, I . Medizinische Klinik, Mainz, Deutschland<br />

Introduction. Tumors have distinct mechanisms to circumvent the human<br />

immune system. Expression of CTLA-4 (cytotoxic T-lymphocyte-associated<br />

antigen 4) on tumors and regulatory T cells (Tregs) can<br />

lead to suppression of immune defence mechanisms. However CTLA-4<br />

mediated blockage of human dendritic cells (DCs) by CTLA-4 expressing<br />

tumors have not been analysed so far. As CTLA-4 receptors can be<br />

blocked by new CTLA-4 antibodies tremelimumab or ipilimumab, we<br />

analysed these antibodies in our ex vivo human melanoma model for<br />

their effects on maturation of DCs and their role on Tregs.<br />

Methods. Tregs and monocytes were isolated from human Buffy coats<br />

from HLA-A2 restricted donors with magnetic beads. For differentiation<br />

of monocytes into DCs, monocytes were stimulated with IL-4 and<br />

GM-CSF and maturation of iDCs was induced by a cytokine cocktail<br />

(CC), containing 0.01 µg/ml TNFα, IL-6, IL-1β and 1 µg/ml PGE2 [Jonuleit<br />

et al. (1997), Eur J Immunolo 27(12):3135–42]. Parvovirus H1-infected<br />

and uninfected Sk29Mel melanoma cells were cocultured with iDCs<br />

with or without tremelimumab (10 µg/ml) and with or without ipilimumab<br />

(10 µg/ml) in a ratio of 1:3 for 3 days.<br />

Results. Sk29Mel cells and some colon carcinoma cells (CaCo2) clearly<br />

expressed CTLA-4 on the surface, measured by extra- and intracellular<br />

FACScan analyses. Furthermore, tremelimumab and ipilimumab did<br />

not disturb maturation of iDCs. In coculture, the oncolytic parvovirus<br />

H1-infected (H1-PV) SK29Mel cell lysates induced maturation of iDCs<br />

which was increased by the addition of tremelimumab and ipilimumab.<br />

Using ELISA, a clear increase in IFNgamma and IL-6 was detected in<br />

the supernatants of H-1PV infected SK29Mel cocultured with iDCs in<br />

the presence of tremelimumab and ipilimumab. In further coculture<br />

experiments the negative effect of Tregs on mDCs was partially restored<br />

in the presence of tremelimumab and a decrease of IL-10 was detected in<br />

the supernatant via ELISA. The further analysis of CTL activation and<br />

DC cross presentation will be presented at the meeting.<br />

Conclusion. To our knowledge this is the first direct analysis that tremelimumab<br />

and ipilimumab can overcome the negative feedback of<br />

tumor cells expressed CTLA-4 on human DCs. These results clarify the<br />

importance of CTLA-4 as therapeutical goal for treatment of human<br />

tumours to overcome tumor-induced immune suppression.<br />

102 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0393<br />

Radiation-induced damage of the rat intestine after external<br />

beam irradiation of the liver<br />

*S . Cameron1 , A . Schwartz1 , S . Sultan1 , I .-M . Schaefer1 , M . Rave-Fraenk1 ,<br />

C .F . Hess1 , H . Christiansen1 , G . Ramadori1 1UM Göttingen, Gastroenterologie und Endokrinologie, Göttingen,<br />

Deutschland<br />

Introduction. Ionizing radiation is routinely used in the treatment of<br />

malign tumors. To date, no experimental setting exists for investigating<br />

out-of-field effects of the intestine, with a parenchymatous organ<br />

as target.<br />

Methods. A single dose of 25 Gray was administered percutaneously to<br />

the liver of randomly paired male Wistar rats after a planning CT-scan.<br />

Sham-irradiated animals served as controls. At 1, 6, 24, 96 hours (h),<br />

and 1.5 and 3 months the duodenum, jejunum, ileum and distal colon<br />

were removed, washed and frozen in liquid nitrogen or prepared for<br />

paraffin staining.<br />

Results. All animals survived the treatment. In the duodenum and jejunum,<br />

acute changes at 1 h resulted in epithelial cell damage. At 6 h, the<br />

villus architecture was disrupted. In the submucosa, vessel congestion<br />

was observed. Radiation mucositis with granulocyte (MP0+) infiltration<br />

was seen from 1 to 24 h in the duodenum and jejunum, when ED1+<br />

macrophages, CD3+ T-lymphocytes, and CD34+ hematopoietic precursor<br />

cells were recruited. Duodenum and jejunum showed regeneration<br />

of the crypt-villus axis at 1.5 and 3 months. In the ileum at 1 h after irradiation,<br />

only edema was observed. At 6 h, the ilial mucosa showed complete<br />

denudation of the villi and destruction of the crypt lining. In the<br />

lamina propria, vessels were scarce with increased collagen deposition.<br />

Early granulocyte infiltration was delayed but continued throughout<br />

the observation time. Recruitment of macrophages and lymphocytes<br />

was missing with a lack of induction of chemokines such as CCL2. Tissue<br />

regeneration in the ileum was deficient during the observation time.<br />

In the colon, changes were minor and transient.<br />

Conclusion. The ileum, even though it received only scattered irradiation,<br />

was most sensitive to radiation. This needs to be taken into account<br />

to prevent the clinically observed irradiation complications to the<br />

ileum.<br />

0404<br />

Effect of Sox9 induced IFIT3 expression in pancreatic cancer<br />

*R . Mair1 , P . Camaj1 , I . Ischenko1 , A . Renner1 , Q . Bao1 , Y . Zhao1 , K .-W . Jauch1 ,<br />

C .J . Bruns1 1Klinikum Großhadern, Experimentelle Forschung Chirurgie – AG Bruns,<br />

München, Deutschland<br />

Introduction. Pancreatic cancer is associated with a very poor overall<br />

prognosis. To analyze the aggressive tumor biology of human pancreatic<br />

cancer, we genomically compared high-metastatic and non-metastatic<br />

human pancreatic cancer cell lines and analyzed the relevance of<br />

differentially expressed IFIT3 gene in vivo and in vitro.<br />

Methods. The transcriptomes of the non-metastatic FG and the highmetastatic<br />

L3.6pl human pancreatic cancer cell lines were compared<br />

via Affymetrix analysis. The interferon-induced protein with tetratricopeptide<br />

repeats 3 (IFIT3) gene was significantly over-expressed<br />

in L3.6pl cells. The results were validated with RT-PCR and Westernblotting.<br />

Promoter sequence analysis was used to determine transcription<br />

factor binding sites. L3.6pl, FG, their IFIT3-transfectants and the<br />

L3.6pl-Sox9shRNA-transfectant were examined in vitro with regard<br />

to proliferation, apoptosis, angiogenesis, chemotherapy-resistance and<br />

cytokine-production and orthotopically injected into nude mice. One-<br />

STrEP-tag identified interacting proteins. Regulation of gene expression<br />

was studied after treatment with IFN-alpha and/or inhibitors NFκB<br />

(BAY-11-7082) and STAT1 (S-19).


Results. IFIT3 was significantly over-expressed in high metastatic L3.6pl<br />

cells and inducible by IFN-alpha. The IFIT3-promoter presented a binding<br />

site for the transcription factor Sox9 which is constitutively upregulated<br />

in L3.6pl cells. Overexpression of the IFIT3 gene increased<br />

tumor growth, angiogenesis and metastasis. In addition, it led to an<br />

increased VEGF production, higher proliferation rate and decreased<br />

apoptosis as well as resistance to chemotherapy. Furthermore, a significant<br />

increase in IL-6 production was detected, whereas IFIT3-downregulation<br />

via downregulation of its transcription factor Sox9 led to<br />

a decreased IL-6 production. STAT1 and JNK were shown to be interacting<br />

partners. Inhibition of NFκB and STAT1 led to diminished IFIT3<br />

expression, respectively.<br />

Conclusion. Previous studies have shown an up-regulation of IFIT3 in<br />

the context of inflammation. In our experiments IFIT3 led to an aggressive<br />

phenotype in pancreatic cancer. It is inducible by IFN-alpha. Sox9triggered<br />

over-expression of IFIT3 led to an increased IL-6 production<br />

in tumor cells. Therefore, our results suggest that Sox9 triggered IFIT3<br />

over-expression induces a pseudo-inflammatory environment, supporting<br />

tumor cell proliferation and metastasis, which is represented in the<br />

phenotype of L3.6pl cells.<br />

0421<br />

A new in vitro model for cell-in-cell structure formation using the<br />

pancreatic carcinoma cell line Bxpc-3<br />

*F . Putz1 , M . Schwegler1 , R . Fietkau1 , *L . Distel1 1Strahlenklinik der Universität Erlangen-Nürnberg, Strahlenbiologie,<br />

Erlangen, Deutschland<br />

Objective. Pathologists have described cell-in-cell structures in malignant<br />

tumor samples for many years. This cell-in-cell phenomenon, also<br />

referred to as “cell cannibalism”, consists of a tumor cell that has completely<br />

engulfed another tumor cell leading to a characteristic bird´s eye<br />

appearance. Recently, a new mechanism, called entosis, was described,<br />

which can partially explain cell-in-cell structure formation. Nevertheless,<br />

the mechanisms underlying the cell-in-cell phenomenon in tumors<br />

still remain largely unknown. We have discovered a new in vitro model<br />

using a mechanism different from entosis that allows the generation<br />

of numerous cell-in-cell structures. As the uptake of apoptotic cells in<br />

neighboring cells is well recognized in the literature, we investigated<br />

whether the observed cell-in-cell structure formation was induced by<br />

apoptosis.<br />

Methods. Bxpc-3 cells were stained red and green with CellTrace Oregon<br />

Green and CellTrace Far Red, respectively. Red Bxpc-3 were heattreated<br />

(56°C, 45 min) with or without the caspase inhibitor ZVAD-<br />

FMK (0.5 h pretreated, 100 µM). Alternatively, red Bxpc-3 were treated<br />

with 25% ethanol or 1 M sodium azide for 1 hour. After coincubation of<br />

red and green cells in suspension for 3 hours, cells were fixed and examined<br />

under the fluorescence microscope. Red cells that were completely<br />

internalized into green cells were counted as cell-in-cell structures.<br />

Furthermore, cells were immunostained for cleaved caspase-3.<br />

Results. Bxpc-3 cells were present in small clusters. Numerous characteristic<br />

cell-in-cell structures were noted, irrespective of treatment.<br />

Cell-in-cell structures consisted of a red Bxpc-3 cell that was completely<br />

engulfed by a green cell with typical crescent-shaped nucleus. Treated<br />

cells were negative for cleaved caspase-3. Using heat-treated cells we<br />

observed 1.25% (39/3108) and 1.36% (41/3010) cell-in-cell structures with<br />

and without caspase inhibition, respectively.<br />

Conclusions. Engulfment of early necrotic cells by viable Bxpc-3 cells<br />

can lead to characteristic cell-in-cell structures in vitro strongly resembling<br />

those frequently described in histological and cytological tumor<br />

specimens. In conclusion, we present a new mechanism for cell-in-cell<br />

structure formation between malignant cells that is different from entosis<br />

and apoptotic cell uptake.<br />

0426<br />

Conditional RNAi-mediated knockdown of TPX2 synergizes with<br />

docetaxel cytotoxicity against HeLa cell sub-clones in vitro and<br />

in vivo<br />

*A .J . Allmendinger1 , K . Schönig2 , O . Gruss3 , S . Berger2 , M .R . Berger1 1Deutsches Krebsforschungszentrum, AG Toxikologie und Chemotherapie,<br />

Heidelberg, Deutschland, 2Zentralinstitut für Seelische Gesundheit,<br />

Mannheim, Deutschland, 3Zentrum für Molekulare Biologie, Heidelberg,<br />

Deutschland<br />

The microtubule-associated protein TPX2 could be a potent novel target<br />

for anti-cancer therapy. Knockdown of TPX2 is highly effective in inhibiting<br />

tumor cell growth, both in vitro and in vivo. The combination<br />

of TPX2-knockdown with docetaxel could further augment therapeutic<br />

efficacy. To test this hypothesis, respective experiments were performed<br />

with a HeLa cell line in which the reverse tetracycline-dependent<br />

transactivator rtTA2S-M2 drives the expression of eGFP and a miRNA,<br />

inducing RNAi-dependent inhibition of TPX2 expression, from the bidirectional<br />

tet-regulated promoter (Hela EM2-11-TPX2). A similar cell<br />

line (Hela EM2-11), in which the presence of the inducer doxycycline<br />

(dox) activates expression of the genes mCherry and firefly luciferase,<br />

served as a negative control.<br />

First, the combined effect of TPX2-knockdown and docetaxel (DCX)<br />

on in vitro proliferation was determined by MTT assay. Here, the respective<br />

cells were treated with either DCX (0.2–4.0 nmol/l) or dox<br />

(0.5 μg/ml) or a combination of both and cell viability was assessed after<br />

72 h. Treatment with DCX caused a concentration-dependent decrease<br />

in proliferation in vitro, whereas dosages of dox, which were sufficient<br />

to knock down TPX2 expression but not yet anti-proliferative, reduced<br />

cell growth by 42%. The proliferation of HeLa EM2-11-TPX2 was synergistically<br />

reduced by the combination treatment compared to the single<br />

agent exposures.<br />

Next, the therapeutic potential of TPX2-knockdown alone or in combination<br />

with DCX was tested in a nude mouse xenograft model. Here,<br />

the size of tumors growing in nude mice following s.c. implantation was<br />

monitored over a period of 4-5 weeks. A control group received no treatment;<br />

a TPX2-knockdown group received treatment with dox (0.2 mg/<br />

ml in drinking water), starting on day 14 after cell injection and being<br />

continued for 18 days; a DCX group was given 22.3 mg/kg (applied twice,<br />

on days 14 and 25); a fourth group received a combination treatment. In<br />

nude mice, TPX2-knockdown alone caused a 52% reduction in tumor<br />

growth and DCX a reduction by 25%. The combination of both treatments<br />

inhibited tumor growth synergistically by 87%.<br />

In our experiments, knockdown of TPX2 alone was highly effective<br />

against HeLa cell growth. The combination of TPX2-knockdown with<br />

docetaxel showed a synergistic therapeutic effect, both in vitro and in<br />

vivo. It is concluded that TPX2 is a valuable treatment target, which can<br />

be successfully combined with other anti-mitotic agents.<br />

0477<br />

Preclinical evidence that CD47 is a common therapeutic antibody<br />

target on human solid tumors<br />

*S .B . Willingham1 , J .-P . Volkmer2,1 , H . Contreras-Trujillo 1 , R . Martin1 , J .D . Cohen1<br />

, K . Weiskopf1 , A .K . Volkmer1 , P . Dalerba1 , F .A . Scheeren1 , I .L . Weissman1 1Stanford University, Institute for Stem Cell Biology & Regenerative Medicine,<br />

Stanford, USA, 2Uniklinik Düsseldorf, Urologie, Düsseldorf, Deutschland<br />

Background. CD47 is a ligand for SIRP-alpha, a protein expressed on<br />

macrophages and dendritic cells. CD47 binding to SIRP-alpha transmits<br />

a “don’t eat me” signal that results in the inhibition of phagocytosis.<br />

Blocking anti-CD47 monoclonal antibodies neutralize the CD47- SIRPalpha<br />

interaction, enabling macrophages to phagocytose leukemia and<br />

lymphoma cells. We hypothesized that patient solid tumor cells express<br />

CD47 to circumvent macrophage surveillance and that blocking anti-<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

103


Abstracts<br />

CD47 antibodies would inhibit the growth and metastasis of solid tumors.<br />

Methods. All experiments were performed with either primary or lowgeneration<br />

xenograft human tumors, including bladder, breast, colorectal,<br />

glioblastoma, hepatocellular carcinoma ovarian, prostate, and<br />

head and neck squamous cell carcinoma samples. CD47 expression was<br />

analyzed on solid tumor cells by flow cytometry or immunofluorescence.<br />

Patient gene expression and survival data were analyzed to evaluate<br />

CD47 as a prognostic factor. CD47 was evaluated as a therapeutic antibody<br />

target using in vitro assays and orthotopic xenotransplantation<br />

models established with patient solid tumor cells.<br />

Results. Nearly all solid tumor cells express CD47. CD47 mRNA expression<br />

levels correlated with a decreased probability of survival. Blocking<br />

anti-CD47 monoclonal antibodies enabled macrophages to phagocytose<br />

patient tumor cells in vitro, and in vivo inhibited tumor growth,<br />

prevented metastases, and increased survival.<br />

Conclusions. These results suggest that CD47 expression is a common<br />

mechanism exploited by human solid tumor cells to evade phagocytosis<br />

and establish CD47 as a potential therapeutic antibody target for solid<br />

tumors.<br />

0487<br />

MMP11 expression increases during progression of breast cancer<br />

*S . Schultz1 , H . Bartsch2 , B . Kootz1 , K . Sotlar2 , K . Petat-Dutter2 , M . Bonin3 ,<br />

S . Poths3 , M . Walter3 , O . Riess3 , D . Wallwiener1 , T . Fehm1 , *H . Neubauer1 1Eberhard-Karls-University Tübingen, Department of Obstetrics and Gynecology,<br />

Tübingen, Deutschland, 2Ludwig-Maximilians-University Munich,<br />

Institute for Pathology, Munich, Deutschland, 3Eberhard-Karls-University Tübingen, Microarray Facility Tübingen, Tübingen, Deutschland<br />

Aims. The ductal carcinoma in situ (DCIS) of the breast is considered<br />

to be the pre-invasive form of the invasive duct carcinoma (IDC). The<br />

aim of this project is (1) the identification and validation of potential<br />

progression markers and (2) to identify markers for high risk DCIS with<br />

aggressive potential. MMP11 (matrix-metalloproteinase 11) is a marker<br />

for the transition from DCIS to IDC. It is associated with tumour cell<br />

invasion and a poor clinical outcome.<br />

Material and methods. 14 formalin fixed and in paraffin embedded<br />

(FFPE) tissue samples with a pure DCIS without IDC component<br />

(patients were at least five years free of cancer), and 15 paraffin tissue<br />

samples with DCIS/IDC tumours were selected. Tissue sections were<br />

prepared, stained with hematoxylin-eosin and the epithelial cells were<br />

isolated by laser capture microdissection (LCM). 200 ng RNA were extracted,<br />

hybridized to the Whole Genome DASL Array (Illumina) and<br />

bioinformatically evaluated. The RNA was linear amplified using the<br />

Ribo-SPIA® technology (WT-Ovation TM FFPE System, NuGenTM)<br />

and the validation was done by qRT-PCR using the LightCycler® 480<br />

System (Roche).<br />

Results. We were able to identify 993 transcripts that are differentially<br />

expressed between DCIS and IDC of the same tumor and 1138 transcripts<br />

which are differentially expressed between pure DCIS and DCIS/<br />

IDC tumors. Differential expression was validated for 9 transcripts<br />

using two sample sets, the technical validation sample set (15 DCIS/IDC<br />

tumors, 14 pure DCIS) and an independent validation sample set (26<br />

DCIS/IDC tumors, 17 pure DCIS). MMP11 is highly expressed in IDC<br />

and moderately expressed in DCIS with IDC component. In pure DCIS<br />

less or no expression of MMP11 was determined.<br />

Conclusion. We identified progression-specific candidate transcripts<br />

using LCM and microarray analysis from FFPE breast cancer tissues.<br />

MMP11 is a progression marker which differentiates between high- and<br />

low-risk DCIS.<br />

104 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0488<br />

Analysis of single tumor cells by a one-step Multiplex-RT-PCR<br />

*H . Schneck1 , A . Tögl2 , P . Hartmann2 , C . Grimmel3 , T . Biedermann3 , T . Fehm1 ,<br />

H . Neubauer1 1Eberhard-Karls-University Tübingen, Department of Obstetrics and<br />

Gynecology, Tübingen, Deutschland, 2Beckman Coulter Biomedical GmbH,<br />

Munich, Deutschland, 3Eberhard-Karls-University Tübingen, Institute for<br />

Dermatology, Tübingen, Deutschland<br />

Objectives. Circulating tumor cells (CTC) are essential for establishing<br />

metastasis and therefore their detection and molecular characterization<br />

might help to optimize treatment decisions. By dint of a one-step Multiplex-RT-PCR<br />

approach on the breast cancer cell line MCF-7 the parallel<br />

analysis of tumor-related expression markers (e.g. CK19, EpCAM,<br />

Muc1) was established and served as proof of principle for the molecular<br />

characterization of CTC.<br />

Material and methods. For analysis of single cells MCF-7 cells were spiked<br />

into blood of healthy donors or 7.5 ml of blood obtained by metastatic<br />

breast cancer patients was used. Patients’ blood was collected in<br />

EDTA tubes (Monovette, Sarstedt) and CTC were either enriched using<br />

a Percoll density gradient method or processing the blood samples with<br />

the CellSearch® Profile Kit (Veridex, LLC). Single cell deposition happened<br />

in 1×PBS after staining against epithelial cell-specific markers<br />

(EpCAM, MUC1; Beckman Coulter) by cell sorting (FACSAria, BD) or<br />

micromanipulation onto the reaction sites of an AmpliGrid slide (Beckman<br />

Coulter). Multiplex-RT-PCR was performed using the Single Cell<br />

One-Step RT-PCR Kit and primers for β2-microglobulin, calmodulin,<br />

GAPDH, EpCAM, CK19 and Muc1 on the AmpliSpeed cycler (Beckman<br />

Coulter). Products were analysed with the Agilent DNA 1000 Kit<br />

and the Agilent 2100 Analyzer.<br />

Results. Single epithelial cells were successfully deposited on the reaction<br />

sites of AmpliGrid slides with both cell sorting and micromanipulation.<br />

For confirmation and in order to correlate RT-PCR results with template<br />

presence or absence, a visual quality control using a microscope<br />

was performed. Furthermore, single-plex one-step RT-PCRs for three<br />

housekeeping genes (β2-microglobulin, calmodulin and GAPDH) and<br />

three epithelial markers (EpCAM, Muc1 and cytokeratin-19), as well as<br />

the combination of all markers in a 6-Plex-RT-PCR could be achieved<br />

on single cells.<br />

Conclusion. A One-Step Multiplex-RT-PCR using the AmpliGrid system<br />

can be applied for parallel analysis of multiple transcripts from single<br />

epithelial cells isolated from peripheral blood of breast cancer patients.<br />

0495<br />

Combined transcriptome and methylation analyses to identify<br />

new targets of cisplatin resistance in ovarian cancer patients<br />

*T . Fehm1 , J . Hoffmann2 , M . Walter2 , A . Staebler3 , S . Poths2 , O . Riess2 , D . Wallwiener1<br />

, M . Bonin2 , *H . Neubauer1 1Eberhard-Karls-University Tübingen, Department of Obstetrics and<br />

Gynecology, Tübingen, Deutschland, 2Eberhard-Karls-University Tübingen,<br />

Microarray Facility, Tübingen, Deutschland, 3Eberhard-Karls-University Tübingen, Institute for Pathology, Tübingen, Deutschland<br />

Objectives. The standard therapy for Ovarian cancer consists of aggressive<br />

cytoreductive surgery followed by platinum-based chemotherapy.<br />

However, intrinsic or acquired platinum resistance in the majority of<br />

patients leads to high mortality rate. To gain new insights in resistance<br />

mechanisms and modified pathways, we performed combined wholegenome<br />

expression and methylation studies using Illumina BeadArrays.<br />

Material and methods. Eleven cryopreserved tissue samples from each<br />

platinum resistant and platinum sensitive ovarian carcinomas were selected.<br />

From consecutive tissue sections RNA and DNA was extracted<br />

and analysed for differences in gene expression and methylation pat-


terns by using Illumina BeadArray platforms. Results obtained were<br />

confirmed using qRT-PCR and pyrosequencing.<br />

Results. We assessed the DNA methylation profile of approx.<br />

27,000 CpG sites (associated with approx. 14,000 transcripts) and found<br />

613 differentially methylated promoter sites using M-value statistics. To<br />

investigate the relationship between DNA methylation status and gene<br />

expression, we measured levels of transcripts from the same set of genes<br />

in the same samples. After normalization and biostatistical analysis we<br />

detected 115 significantly differentially expressed transcripts with a fold<br />

change >1.6 and a p-value


Abstracts<br />

insufficient bioavailability when injected intraperitoneally or subcutaneously<br />

as a suspension in high concentration in in vivo tests.<br />

1 . O’Dwyer P, Stevenson J ., Johnson SW (1999) . In: Lippert B . (ed .), Cisplatin . Chemistry<br />

and Biochemistry of a Leading Anticancer Drug, WILEY-VCH, Weinheim,<br />

pp 31 Fluorinated [1,2-diarylethylenediamine]platinum(II) complexes 72<br />

2 . Reedijk J (1999) Chem Rev 99:2499–2510<br />

3 . Boulikas T, Vougiouka M (2003) Oncol Rep 10:1663<br />

4 . Spruß T, Bernhardt G, Schickaneder E, Schönenberger HJ (1991) <strong>Cancer</strong> Res<br />

Clin Oncol 117:435–443<br />

Seltene Tumoren<br />

0016<br />

The oral cancer knowledge of dentists and physicians in Schleswig-Holstein<br />

*K . Hertrampf1 , H .-J . Wenz2 , M . Koller3 , N . Arpe4 , J . Wiltfang1 1Universitätsklinikum Schleswig-Holstein, Campus Kiel, Klinik für MKG-<br />

Chirurgie, Kiel, Deutschland, 2Universtitätsklinikum Schleswig-Holstein,<br />

Campus Kiel, Klinik für Zahnärztliche Prothetik, Propädeutik und Werkstoffkunde,<br />

Kiel, Deutschland, 3Universitätsklinikum Regensburg, Zentrum<br />

für Klinische Studien, Regensburg, Deutschland, 4Universtitätsklinikum Schleswig-Holstein, Campus Kiel, Klinik für Strahlentherapie, Kiel, Deutschland<br />

Objectives. Oral cancer is a considerable health problem with more than<br />

10,000 new diagnosed cases each year in <strong>German</strong>y. Comparable little is<br />

known about the knowledge of dentists and physicians on oral cancer<br />

with focus on diagnostic items. It was the aim of the project to evaluate<br />

the level and determinants of knowledge about diagnostic factors of oral<br />

cancer by means of a standardised questionnaire in the State of Schleswig-Holstein,<br />

<strong>German</strong>y.<br />

Material and methods. A self-administered survey was mailed together<br />

with a business reply envelope to all dentists (n=2233) and the medical<br />

disciplines involved in oral cancer diagnostics (Otolaryngology, dermatology,<br />

internal Medicine, general medicine; n=2575) in Schleswig-<br />

Holstein. Three and six weeks after the initial mailing, a reminder was<br />

sent to all possible participants. The survey was composed of 41 items.<br />

Descriptive statistics of the sample and responses to the questionnaire<br />

were reported by means of counts and percentages.<br />

Results. 306 questionnaires of the dentists (14%) and 408 questionnaires<br />

of the physicians (17%) were returned and analysed. Around 90%<br />

and more of the respondents knew that early detection improves the<br />

5-year survival rate. Almost two-thirds of all respondents correctly recognized<br />

that the floor of the mouth is one of two most commonly affected<br />

sites. The knowledge that the tongue is the second of the two most<br />

commonly affected sites was recognized 45–70%. Twenty-one percent to<br />

60% of the respondents knew that early cancer lesions usually appear<br />

as small, painless red areas. However, only 27–57% (except dermatology<br />

with 82%) correctly recognized that patients in early stage of oral cancer<br />

are asymptomatic. The oral cancer knowledge with regard to signs and<br />

symptoms showed interesting differences among the different responder<br />

groups.<br />

Conclusions. Appropriate knowledge about signs and symptoms of oral<br />

cancer is not only essential for dentists but also for several medical disciplines.<br />

Although the knowledge of different diagnostic items was almost<br />

sufficient, the responders were surprisingly unaware about the fact<br />

that the early stage of oral cancer is almost symptom-free and discrete<br />

in appearance. These results underline the development and implementation<br />

of specific advanced educational programmes for dentists and<br />

the several medical disciplines.<br />

106 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0019<br />

Die Rhinobasisrekonstruktion durch vital-autologen lokalen<br />

sowie distalen Gewebetransfer<br />

*T . Hoffmann1 , P . Schuler1 , O . Müller2 , R . Hierner1 , M . Wagenmann3 , G . Lehnerdt1<br />

, U . Sure2 , S . Lang1 , D . Hänggi4 , I .E . Sandalcioglu2 1Universitätsklinik Essen, Hals-Nasen-Ohrenklinik, Essen, Deutschland,<br />

2 3 Universitätsklinik Essen, Neurochirurgie, Essen, Deutschland, Universitätsklinik<br />

Düsseldorf, HNO, Düsseldorf, Deutschland, 4Universitätsklinik Düsseldorf, Neurochirurgie, Düsseldorf, Deutschland<br />

Die nach Tumorchirurgie oder Trauma eröffnete Rhinobasis bedarf<br />

eines suffizienten Abschlusses um Rhinoliquorrhoe u./o. Hirngewebeprolaps<br />

zu verhindern. Das alleinige Einbringen von avitalem autologen,<br />

allogenem sowie xenogenem Material ist oft unzureichend und<br />

verlangt unter Umständen nach einer zuverlässigen Versorgung mit<br />

Hilfe eines vaskularisierten lokalen oder distalen Gewebetransfers.<br />

Rhinobasisdefekte von insgesamt 41 Patienten wurden interdisziplinär<br />

mit Hilfe von autologem Gewebetransfer gedeckt. Kleinere, nach endoskopisch<br />

endonasaler Chirurgie entstandene Defekte (n=23, hierunter<br />

Meningeome, spontane Liquorfisteln, Chordom, Chondroblastom, Metastase,<br />

nasale Fistel) wurden durch lokale gefäßgestielte (A. sphenopalatina)<br />

Schleimhautlappen aus der unteren Muschel (3) oder dem Septum<br />

(20) gedeckt. Bei größeren Defekten [n=14, hierunter Malignome<br />

(10), Meningoencephalozelen (2), Aneurysmatische Knochenzyste (1)]<br />

wurde die Rhinobasis mit Hilfe eines Calvarian-Split und eines Galea-<br />

Periost-Lappens in einer „Sandwich-Technik“ verschlossen. In einem<br />

Fall wurde der Defekt mit Hilfe eines M. temporalis Lappens gedeckt.<br />

In 4 Fällen (Trauma, Adenokarzinom) wurden nach mehrfachen, auswärts<br />

durchgeführten und frustran verlaufenen Deckungsversuchen<br />

die Rhinobasis mit einem freien, gefäßanastomisierten und desepithelisierten<br />

Unterarmlappen revidiert. Alle 41 Fälle wurden in Hinblick auf<br />

die Prävention/Behandlung einer Rhinoliquorrhoe und/oder Hirngewebeprolaps<br />

erfolgreich abgeschlossen. Die suffiziente Revision komplexer<br />

Rhinobasisdefekte gelingt unter Verwendung eines autologen<br />

lokalen und im Extremfall auch distalen Gewebetransfers und bedarf<br />

einer engen Kooperation zwischen den in der Kopf-Hals-Chirurgie tätigen<br />

Fachdisziplinen.<br />

0023<br />

Vollhauttransplantate für die temporäre und definitive Defektabdeckung<br />

im Rahmen der mikroskopisch kontrollierten Chirurgie<br />

bei bösartigen Geschwülsten der Gesichtshaut<br />

*L . Tischendorf1 1Praxis MKG-Chirurgie, Praxis, Halle, Deutschland<br />

Einleitung. Die tumorfreie Absetzungsgrenze (R0-Resektion) ist der<br />

prognostisch bedeutsamste Faktor für den Behandlungserfolg bei bösartigen<br />

Geschwülsten de Gesichtshaut. Ihre Bewertung ist mit hoher<br />

Präzision mit den Methoden der mikroskopisch kontrollierten Chirurgie<br />

möglich- allerdings nur mittels definitiver formalinfixierter<br />

histologischer Schnitte vor allem im basalen Bereich. In den aktuellen<br />

Leitlinien wird folglich eine verzögerte Defektabdeckung empfohlen –<br />

nämlich dann, wenn Gewissheit darüber besteht, dass alle Schnittränder<br />

tumorfrei sind. Eine verzögerte also zweizeitige Defektabdeckung<br />

ist eine langwierige und für den Patienten belastende Prozedur. Um<br />

diesem aus dem Weg zu gehen rekonstruieren wir bis zu mittelgroße<br />

Defekte sofort mit freien Vollhauttransplantaten. Dies erlaubt eine einfache<br />

Revision im Fall einer nachgewiesenen R1-Resektion. Wenn das<br />

ästhetische Ergebnis befriedigt, handelt es sich dabei um die definitive<br />

Rekonstruktion. Andernfalls kann eine Korrektur zum Zeitpunkt der<br />

Wahl erfolgen.<br />

Material und Methode. Von September 1993 bis zum April 2010 wurden<br />

nach mikroskopisch kontrollierter Exzision von 265 bösartigen Tumoren<br />

der Gesichtshaut die Defekte durch infraklavikuläre Vollhauttransplantate<br />

versorgt.


Resultate. Die ursprünglich temporäre Defektabdeckung mit den infraklavikulären<br />

Vollhauttransplantaten nach Resektionen der bösartigen<br />

Tumoren der Gesichthaut führt in 262 von 265 (99%) Fällen zu derart<br />

guten ästhetischen Ergebnissen, dass die Patienten eine mögliche<br />

sekundäre Korrektur durch Nahlappen nicht mehr wünschten. Nur in<br />

wenigen Fällen war eine sekundäre Korrektur notwendig. In den sehr<br />

seltenen Fällen einer primären R1-Resektion (4 Fälle = 1,5%) konnten wir<br />

problemlos eine dreidimensional orientierte Nachexzision ohne Notwendigkeit<br />

einer aufwendigen sekundären plastischen Rekonstruktion<br />

ausführen. Alle Operationen erfolgten unter ambulanten Bedingungen.<br />

Schlussfolgerung. Die Anwendung von infraklavikulären Vollhautransplantaten<br />

zum sofortigen Defektverschluss nach Entfernung bösartigen<br />

Geschwülste der Gesichtshaut erlaubt bei mittlerer Ausdehnung eine<br />

onkologisch sichere, in ästhetischer Hinsicht in der überwiegenden<br />

Anzahl der Fälle befriedigende und zeitsparende operative Behandlung<br />

unter ambulanten Bedingungen ohne die Nachteile einer verzögerten<br />

chirurgischen Rekonstruktion.<br />

0025<br />

Expression of activated EGF-receptor and k-ras mutations in<br />

carcinomas of the salivary glands<br />

T . Schneider1 , A . Strehl2 , A . Rosenwald2 , A . Kübler1 , *U . Müller-Richter1 1Universitätsklinikum Würzburg, Mund-, Kiefer- und Plastische Gesichtschirurgie,<br />

Würzburg, Deutschland, 2Universität Würzburg, Institut für<br />

Pathologie, Würzburg, Deutschland<br />

Background. The activated EGF-receptor has been proved as a prognostic<br />

as a prognostic aid and therapeutic target in many different tumours.<br />

In this context k-ras plays a crucial role. Autonomous activation of the<br />

EGFR pathway by a mutated k-ras would preclude treatments with<br />

EGFR-antibodies. Aim of this study is to analyze EGF-receptor and kras<br />

status in salivary gland carcinomas.<br />

Methods. 43 patients with carcinomas of the salivary glands were selected<br />

(24 males, 19 females). The chosen tumours included 23 adenoidcystic<br />

carcinomas, 17 mucoepidermoid carcinomas and 3 adenocarcinomas<br />

not otherwise specified (NOS). First, a molecular examination<br />

of mutations by PCR and sequencing of the codons 12 and 13 of the k-ras<br />

gene were performed. Second, the activated EGF-receptor was detected<br />

by immunohistochemistry. The results were statistically correlated with<br />

clinical parameters.<br />

Results. None of the tested carcinomas showed mutations in codon 12 or<br />

13 of the k-ras gene. The activated EGF-receptor was present in 79% of<br />

the tumours. Statistically significant correlations (p>0.05) were found<br />

for age and lymph node metastasis. A correlation of tumour stage and<br />

EGFR-status was not found.<br />

Conclusions. As we did not find any k-ras mutation in the tested tumours<br />

we can rule out an important role of it in salivary gland tumours.<br />

The percentage of activated EGF-receptor was high. Unfortunately this<br />

finding did not correspond to many clinical parameters. Additionally,<br />

the high percentage of activated EGF-receptor seemingly facilitates a<br />

treatment with EGFR-antibodies. This is in contradiction with clinical<br />

results that did not yield any good results in patients treated with such<br />

target drugs. Therefore, the role of the activated EGF-receptor in salivary<br />

gland tumours remains unclear.<br />

0029<br />

An open-label multicenter phase II study of Imatinib mesylate<br />

(Glivecâ) treatment of patients with malignant peripheral nerve<br />

sheath tumors<br />

*J . Panse1 , V .-F . von Mautner2 , P . Reichardt3 , T . Brümmendorf1 , M . de Wit4 1 2 Universitätsklinukum Aachen, Aachen, Deutschland, Universitätsklinikum,<br />

Hamburg Eppendorf, Deutschland, 3Helios Klinikum, Bad Saarow,<br />

Deutschland, 4Vivantes Klinikum Neukölln, <strong>Berlin</strong>, Deutschland<br />

Introduction. Malignant peripheral nerve sheath tumors (MPNSTs) are<br />

malignancies with poor prognosis, arising sporadically or in patients<br />

with neurofibromatosis type 1 (NF1). In adult NF1 patients MPNSTs are<br />

the main cause for mortality and therapeutic options are unsatisfying.<br />

The only curative treatment is complete surgical resection with a wide<br />

tumor free margin. MPNSTs exhibit individual variability in chemotherapeutic<br />

sensitivity. Radiotherapy and chemotherapy rarely result in<br />

local control of the MPNST; they do not have major impact on survival.<br />

Immunohistochemistry showed that PDGFRalpha is highly expressed<br />

in the majority of MPNSTs, while few cases showed focal c-Kit expression.<br />

Interestingly, MPNSTs with PDGFRA amplification generally<br />

also showed KIT amplification. In-vitro Imatinib treatment (10 µM) of<br />

a PDGFRalpha expressing MPNST cell cultures resulted in more than<br />

50% reduced cell proliferation after 48 hours, indicating that MPNST<br />

treatment with Imatinib warrants further investigation.<br />

Methods. A multicenter, single-stage, open label phase II trial was conducted<br />

to determine the efficacy and safety of Imatinib in patients with<br />

local recurrent or metastatic MPNST who already had undergone surgery<br />

and had no further surgical treatment options. Patients (pts.) were<br />

included in two subgroups based on the assumption that pts. with NF1<br />

associated or sporadic MPNST might respond differently to treatment.<br />

Each subgroup was planned to include 16 patients. The primary objective<br />

was the number of patients showing response defined as at least once<br />

stable disease (SD) within 36 weeks according to RECIST after treatment<br />

with 400 mg Imatinib daily.<br />

Results. The STI571BDE57 trial was started in 2006. While 32 patients in<br />

total were planned to be included only 10 patients have been recruited (4<br />

male and 6 female; median age 34; range 20–51) until April2009; based<br />

on the slow recruitment rate the study was terminate d in 2009. Six of<br />

the ten patients enrolled in the study showed at least once stable disease<br />

during the course of the study, with a 95% confidence interval of (29.6–<br />

90.4). Only one patient showed stable disease after 24 weeks. All patients<br />

discontinued treatment due to unsatisfactory results. Imatinib was safe<br />

and well tolerated; however, one patient experienced a facial paresis.<br />

Conclusion. While protein expression in MPNST suggested a potential<br />

treatment benefit in selected MPNST patients, our results did not show<br />

a significant clinical impact. However, given the low toxicity profile of<br />

STI571BDE57 and the fact that 6/10 patients showed disease stabilization,<br />

imatinib therapy may still be considered in selected patients in addition<br />

to other treatment modalities or in combination with therapies<br />

targeting other over expressed proteins such as somatostatin.<br />

0038<br />

The role of imaging in modern cancer research<br />

*B . Walter1 1LMU München, Institut für klinische Radiologie in der Chirurgischen Klinik,<br />

München, Deutschland<br />

Background. The modern pharmaceutical research mainly bases on the<br />

development of substrates triggering special tissue structures by causing<br />

certain effects. The evaluation of efficacy and innocuousness occur<br />

in several phases. Only a few active ingredients are finally suitable for<br />

the marketing approval. Highest priority therefore has the establishment<br />

of new procedures to improve risk assessment and predictability.<br />

Material. The integration of functional imaging in the early phases of<br />

pharmaceutical development enables the application of radio-labelled<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

107


Abstracts<br />

agents to show localization and distribution pattern of pharmaceutical<br />

effects by computer-assisted analyses as well as the assessment of the<br />

saturation levels of the target receptors<br />

Results. The calculation of distribution and concentration of the substances<br />

used in correlation with measured metabolites and proper clinical<br />

parameters results into a standardized profile of dose and efficacy.<br />

Risks and benefits can be more objectively evaluated so that the number<br />

of probands and costs can be reduced significantly.<br />

Conclusions. Until now preferentially nuclear medicine diagnostics<br />

have been applied. Other radiologic procedures with tracer technique<br />

are necessary to be established. The future way of pharmaceutical research<br />

continues to rest upon antibody applications and on concepts<br />

named “personalized medicine”. The latter comprises recent therapeutic<br />

approaches by which individual cells are extracorporally treated and<br />

reinfused. Illustrations in vivo of efficacy by imaging technique would<br />

support these developments in marketing approval, and therapy-monitoring.<br />

0056<br />

Specific activity of substanceP radiolabeled with bismuth-213<br />

plays a critical role in targeted alpha-therapy in the treatment of<br />

glioblastoma<br />

*C . Friesen1 , I . Hormann1 , M . Roscher1 , O . Leib2 , S . Marx2 , J . Moreno2 , E . Miltner1<br />

1 2 Institute of Legal Medicine, University Ulm, Ulm, Deutschland, Isotope<br />

Technologies Garching GmbH (ITG), Garching, Deutschland<br />

Aim. Targeted alpha-therapy using substanceP radiolabeled with the<br />

alpha-particle bismuth-213 ([Bi-213]SubP) is a promising treatment approach<br />

for glioblastoma. Different specific activities are used during<br />

radioimmunotherapy of high risk leukemia and lymphoma. However,<br />

the effect on cell killing using different specific activities at radiopeptidetherapy<br />

was not examined. In the present study we analyzed the effect<br />

of different specific activities (MBq/µg substanceP) on cell death induction<br />

and activation of apoptosis pathways in glioblastoma cells using<br />

[Bi-213]SubP.<br />

Methods. The glioblastoma cell line T98G was treated with 2000, 1000<br />

and 500 kBq/mL of [Bi-213]SubP using different specific activities (40,<br />

20 and 5 MBq/µg substanceP). 24, 48, 72 and 96 h after treatment induction<br />

of cell death, induction of apoptosis, cell cycle, caspase activation<br />

and activation of apoptosis pathways were determined using flowcytometry<br />

and Western Blot analyses.<br />

Results. Our results demonstrate that specific activities of substanceP<br />

radiolabeled with Bi-213 play a critical role in induction of cell death,<br />

apoptosis and in activation of deficient apoptosis pathways in glioblastoma<br />

cells. The efficacy of cell death induction depends on both dose<br />

and specific activity. At a specific activity of 40 MBq/µg substanceP, it<br />

was possible to induce high rates of apoptotic cell death in glioblastoma<br />

cells also at a very low activity concentration (500 kBq/mL) of [Bi-213]<br />

SubP after 96 h. In addition, decreasing the specific activity of [Bi-213]<br />

SubP to 5 MBq/µg substanceP only a low percentage of glioblastoma<br />

cells could be killed. Similar results were also found after examination<br />

of the effect of different specific activities of [Bi-213]SubP in activation<br />

of apoptosis pathway at comparable concentrations. Only at a specific<br />

activity of 40 MBq/µg and a specific activity of 20 MBq/µg substanceP<br />

a strong activation of caspases and PARP cleavage were found. Reactivation<br />

of deficient apoptosis pathway was strongly decreased at lower<br />

specific activities.<br />

Conclusions. Our findings suggest that not only the activity concentrations<br />

of substanceP radiolabeled with Bi-213 play an important role in killing<br />

glioblastoma cells and in activation of apoptosis pathways but also<br />

the specific activities meaning the amount of radionuclides per peptide<br />

are crucial. These findings have important implications for glioblastoma<br />

therapies using radiolabeled substanceP with Bi-213 during targeted<br />

alpha-therapy.<br />

108 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0057<br />

Deficient apoptosis induction and caspases activation can be<br />

reversed in glioblastoma-initiating stem cells as well as primary<br />

human glioblastoma cells by targeted alpha-therapy using [Bi-<br />

213]SubstanceP<br />

*C . Friesen1 , I . Hormann1 , M . Roscher1 , J . Moreno2 , S . Marx2 , O . Leib2 , L . Nonnenmacher3<br />

, K .-M . Debatin3 , E . Miltner1 1 2 Institute of Legal Medicine, University Ulm, Ulm, Deutschland, Isotope<br />

Technologies Garching GmbH (ITG), Garching, Deutschland, 3Children‘s Hospital, University Ulm, Ulm, Deutschland<br />

Aim. Glioblastomas are the most malignant type of brain tumors. Because<br />

glioblastoma and in particular the high tumorigenic glioblastoma-initiating-stem<br />

cells are resistant to conventional therapies,<br />

glioblastomas are untreatable. Novel strategies are needed to improve<br />

therapeutic success. Targeted alpha-therapy using the alpha-emitter Bi-<br />

213 seems to be a promising approach for killing tumor cells. Glioblastomas<br />

and glioblastoma-initiating-stem cells overexpress neurokinin-1receptors,<br />

the binding site for Bi-213 labelled substanceP ([Bi-213]SubP).<br />

In our studies, we tested the cell death inducing potential of [Bi-213]<br />

SubP and clarified the molecular pathways of apoptosis induction by<br />

[Bi-213]SubP in primary glioblastoma cells and glioblastoma-initiating<br />

stem cells.<br />

Materials and methods. Primary human glioblastoma cells and glioblastoma-initiating-stem<br />

cells were treated with a range of activities (3000–<br />

500 kBq/mL) [Bi-213]SubP. At different time points after irradiation cell<br />

death induction was measured by flowcytometry. Involvement of apoptotic<br />

pathways was assessed by Western-Blot-analyses.<br />

Results. We found that [Bi-213]SubP induced a strong apoptotic cell<br />

death in primary glioblastoma cells as well as in the highly resistant<br />

glioblastoma-initiating-stem cells overexpressing neurokinin-1-receptors.<br />

In the highly resistant glioblastoma-initiating-stem cells, [Bi-213]<br />

SubP reversed deficient activation of caspases, cleavage of PARP and<br />

restored activation of the apoptotic mitochondrial pathway. In addition,<br />

downregulation of the death inhibitory protein Bcl-xL and the strong<br />

caspase inhibitor XIAP, both contributing to glioblastomas’ resistance,<br />

was provoked by [Bi-213]SubP in the highly resistant glioblastoma-initiating-stem<br />

cells comparable to primary glioblastoma cells.<br />

Conclusions. Our findings demonstrate that [Bi-213]SubP is a promising<br />

strategy to break radio-and chemoresistance in primary glioblastoma<br />

cells and to kill the extremely resistant glioblastoma-initiating-stem<br />

cells efficiently by reversing deficient activation of caspases and downregulation<br />

of XIAP and Bcl-xL. [Bi-213]SubP seems to improve therapeutic<br />

success in glioblastoma by targeting and killing glioblastomainitiating<br />

stem cells.<br />

Supported by Deutsche Forschungsgemeinschaft (DFG) .<br />

0062<br />

The prognostic value of molecules of the HIF 1 alpha – and<br />

TGF beta 1 pathway crosstalk in patients with oral squamous cell<br />

carcinoma<br />

*C .K . Müller1 , M . Mtsariashvilli1 , S . Schultze-Mosgau1 1Universitätsklinikum Jena, Klinik und Poliklinik für Mund-, Kiefer- und Gesichtschirurgie/Plastische<br />

Chirurgie, Jena, Deutschland<br />

Background and aim. Despite improvements in diagnosis and treatment<br />

of patients with oral squamous cell carcinoma survival rates have not<br />

changed significantly over the past years. Molecular markers might<br />

provide an additional tool for evaluation of the patients’ prognosis. Hypoxia<br />

Inducible Factor (HIF) 1 alpha as well as Transforming Growth<br />

Factor (TGF) beta 1 were investigated extensively as prognostic markers<br />

with conflicting results. Taking this into account the present study was<br />

conducted to investigate a correlation between the activity of markers<br />

at the HIF 1 alpha/ TGF beta 1 pathway crosstalk and tumor prognosis.


Materials and methods. Biopsies from the tumor margin were harvested<br />

in 50 patients with histologically confirmed squamous cell carcinoma<br />

of the oral cavity at the time of tumor resection. Biopsies were subjected<br />

to immunohistochemical staining for TGF beta 1, HIF 1 alpha as well as<br />

the transcription factor Sp1. Staining intensity was evaluated histomorphometrically.<br />

A multivariate statistical approach was chosen to verify<br />

the correlation between marker expression and disease free survival.<br />

Results. Median disease free survival was found to be 31 months. HIF1<br />

alpha + (p=0.023), TGFbeta1 + (p=0,019) as well as Sp1 + (p=0.022) tumor<br />

patients showed significantly reduced disease free survival in the<br />

bivariate testing. Using the multivariate approach only combined HIF1<br />

alpha+, TGF beta 1+ and Sp1+ tumor patients showed significantly reduced<br />

disease free survival (p=0.043).<br />

Conclusion. Patients with combined HIF 1 alpha+, TGF beta 1+ as well<br />

as Sp1+ tumors showed significantly reduced disease free survival in<br />

the investigated patients collective. Investigation of prognostic markers<br />

located at molecular pathway crosstalks might improve sensitivity and<br />

specifity of prognostic markers.<br />

0063<br />

D,L-Methadone sensitizes glioblastoma-initiating stem cells and<br />

primary glioblastoma cells for doxorubicin treatment ex vivo<br />

*C . Friesen1 , I . Hormann1 , M . Roscher1 , L . Nonnenmacher2 , K .-M . Debatin2 ,<br />

E . Miltner1 1 2 Institute of Legal Medicine, University Ulm, Ulm, Deutschland, Childrens’<br />

Hospital, University Ulm, Ulm, Deutschland<br />

Aim. Glioblastomas are highly malignant primary brain tumors with one<br />

of the worst survival rates among all human cancers, because glioblastoma<br />

cells are extremely resistant to conventional therapies. After surgery<br />

or radiotherapy glioblastomas recur in focal masses. This recurrence is<br />

linked to glioblastoma-initiating stem cells, a high tumorigenic subpopulation,<br />

which could not be killed. Thus, novel therapeutic strategies<br />

are needed to break resistance by targeting glioblastoma cells as well as<br />

glioblastoma-initiating stem. The synthetic opioid D,L-methadone is effectively<br />

used in substitution and pain therapy and it can kill leukemia<br />

cells. In our studies, we analyzed the effect of D,L-methadone alone and<br />

D,L-methadone in addition to doxorubicin on glioblastoma-initiating<br />

stem cells in comparison to primary human glioblastoma cells.<br />

Materials and methods. Primary glioblastoma cells isolated from human<br />

specimen and glioblastoma-initiating-stem cells were treated with<br />

different therapeutic concentrations of D,L-methadone alone or in addition<br />

to therapeutic concentrations of doxorubicin using as Caelyx®<br />

in glioblastoma treatment. After different time points, cell death was<br />

measured by flowcytometry and activation of apoptosis pathways was<br />

analyzed by Western Blot analyses.<br />

Results. We found that D,L-methadone sensitizes primary glioblastoma<br />

cells as well as the highly resistant glioblastoma-initiating stem cells<br />

for doxorubicin-induced cell death and reverses deficient activation of<br />

apoptosis pathways. Therapeutic concentrations of D,L-methadone in<br />

addition to doxorubicin induced a strong apoptotic cell death in primary<br />

glioblastoma cells as well as in the extremely resistant glioblastoma-initiating<br />

stem cells. In addition, D,L-methadone reversed deficient<br />

caspases activation and cleavage of PARP by doxorubicin. The strong<br />

inhibitor of apoptosis XIAP, playing a crucial role in glioblastomas’ resistance<br />

was inactivated by cotreatment with D,L-methadone and doxorubicin.<br />

Futhermore, D,L-methadone provoked downregulation of the<br />

antiapoptotic protein Bcl-xL by doxorubicin in primary glioblastoma<br />

cells and glioblastoma-initiating stem cells.<br />

Conclusions. Our findings suggest that D,L-methadone in addition to<br />

doxorubicin kills the highly resistant glioblastoma-initiating stem cells<br />

similar to the primary glioblastoma cell. D,L-methadone seems to be a<br />

promising strategy to enhance doxorubicin-sensitivity in glioblastoma<br />

therapy.<br />

Supported by Deutsche Krebshilfe .<br />

0068<br />

Group-specific therapy comparison of the quality of life in patients<br />

with head and neck cancer<br />

*C . Zaldivar Wither1 , K . Bikowski2 , K . Freier1 , C . Hofele1 , J . Hoffmann1 1Universitätsklinik Heidelberg, MKG-Chirurgie, Heidelberg, Deutschland,<br />

2Nationales Centrum für Tumorerkrankungen Heidelberg, Medizinische<br />

Onkologie, Heidelberg, Deutschland<br />

Background. Head and neck cancer treatment is associated with loss of<br />

quality of life independent from treatment modality. We investigated<br />

the influence of treatment surgical vs. conservative treatment (RC/Neoadjuvant/Adjuvant)<br />

in regard to quality of life of patients during different<br />

stages of therapy.<br />

Method. In an observational study, 57 patients of the Clinic of Oral and<br />

Maxillofacial Surgery Heidelberg of all stages were enrolled (2007–<br />

2010). We evaluated the quality of life before treatment, immediately<br />

after the primary therapy, after three, six and twelve months. The survey<br />

of quality of life was established by the EORTC QLQ-C30 and EORTC<br />

H&N35.<br />

Results. “Global Health Status improved in both treatment arms<br />

(p=0.038) from 3th month to one year after treatment. Physical functioning”<br />

was 3 months after primary treatment lower in the conservative<br />

treatment group, but this changed completely after 12 months, the value<br />

has deteriorated significantly in the surgical arm. Regarding the Pain,<br />

surgical patients suffer significantly more after 3 months (34.4–28.07)<br />

but from the 3rd month on they suffer less than other forms of therapy<br />

(p=0.011). After 12 months we evaluated better quality of life in Swallowing,<br />

Speech and Felt ill in patients after surgery (p=0.011, p=0.021,<br />

p=0.003 respectively). We found a pronounced deterioration in mouth<br />

opening and dry mouth after conservative therapy, after 6 (p=0.007)<br />

and 3 months (p=0.04).<br />

Conclusions. The aspect of quality of life gains increasing attention in<br />

addition to the quantity of life in the discussion about the treatment<br />

of tumors in the head and neck region. Patients undergoing a primary<br />

surgery suffer considerably loss-of-function after 6 months, but have<br />

superior coping in the study period than other forms of therapy. In order<br />

to measure long-term results and to exclude acute adverse effects,<br />

a study in the course of time points after 12 or 18 months is reasonable.<br />

0069<br />

TGFbeta activates NF-kappaB signaling through a TAK1-dependent<br />

mechanism in head and neck cancer<br />

*C . Freudlsperger1,2 , Y . Bian2 , J . Hoffmann1 , Z . Chen2 , C . Van Waes2 1Universitätsklinikum Heidelberg, Mund- . Kiefer- und Gesichtschirurgie,<br />

Heidelberg, Deutschland, 2NIH, NIDCD, Bethesda, USA<br />

TGFbeta signaling in epithelial malignancies, including head and<br />

neck squamous cell carcinoma (HNSCC), is complex. Inactivation of<br />

TGFbeta signaling promotes the de novo development of epithelial<br />

cancer, while the activation of attenuated but residual TGFbeta signaling<br />

in established cancer clearly favors the progression to a more invasive<br />

and metastatic phenotype. The mechanism responsible for these<br />

double-edged effects of TGFbeta signaling in oncogenesis is less well<br />

characterized. Since aberrant activation of transcription factor Nuclear<br />

Factor-kappaB (NF-kappaB) promotes the malignant phenotype<br />

similar to TGFbeta mediated effects in late staged tumors, we hypothesized<br />

that TGFbeta signaling in tumor promotion could be mediated<br />

through the cross-activation of NF-kappaB pathway. Here, we show<br />

that TGFbeta-1 treatment induced phosphorylation and activation<br />

of IKK, leading to phosphorylation of IkappaBalpha, the inhibitor of<br />

NF-kappaB, and subsequential NF-kappaB activation in HNSCC lines.<br />

TGFbeta-1 and TNFalpha induced NF-kappaB activation was<br />

mediated through TGFbeta-activated kinase 1 (TAK1), since knocking<br />

down of TAK1 using siRNA decreased both TGFbeta-1 and TNFalpha<br />

induced NF-kappaB-dependent reporter gene activity. Furthermore,<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

109


Abstracts<br />

TAK1 knockdown decreased degradation of IkappaBalpha and promoted<br />

nuclear translocation and binding activity of the transactivating<br />

NF-kappaB subunit p65 (RELA). Consequently, transcription of<br />

NF-kappaB downstream genes was attenuated. Conversely, transient<br />

overexpression of TAK1 increased basal, TGFbeta-1 and TNFalpha<br />

induced NF-kappaB reporter gene activity. Futhermore, Celastrol, an<br />

herb extract from Tripterygium wilfordii used in the traditional Chinese<br />

medicine for decades because of its immunosuppressive properties,<br />

decreased TGFbeta-1 induced phosphorylation of TAK1 and p65, and<br />

suppressed basal, TGFbeta-1 and TNFalpha induced NF-kappaB reporter<br />

gene activity. In addition, Celastrol reduced cell growth as measured<br />

by XTT assay (IC50=1.2–1.3 µM) and increased sub-G0 DNA fragmentation<br />

indicating induction of apoptosis.<br />

In conclusion, we identified a cross-talk between TGFbeta and NF-kappaB<br />

pathways, where TGFb signaling leads to NF-kappaB activation<br />

through a sequential activation of TAK1 and IKK activities, and promotes<br />

malignant phenotype of HNSCC. With Celastrol being a potent suppressor<br />

of TAK1 mediated NF-kappaB activation; we present a potential<br />

therapeutic strategy targeting this alternative TGFbeta pathway.<br />

0087<br />

The versatility of the antero-lateral thigh flap (ALT) in the reconstruction<br />

of oral and maxillofacial defects after ablative tumor<br />

surgery<br />

*K . Freier1 , J . Bodem1 , M . Engel1 , J . Hoffmann1 1Universitätsklinikum Heidelberg, Klinik und Poliklinik für Mund-, Kieferund<br />

Gesichtschirurgie, Heidelberg, Deutschland<br />

The anterolateral thigh flap (ALT) is pedicled on septocutaneous or musculocutaneous<br />

perforators of the descending branch of the lateral circumflex<br />

femoral artery. Due to its extraordinary versatility and low donor<br />

site morbidity it has gained increasing popularity in the treatment<br />

of oral and maxillo-facial defects after ablative tumor surgery in the last<br />

decade. The anterolateral thigh flap allows the generation of subcutaneous,<br />

fasciocutaneous, myocutaneous, or adipofascial flap, which has<br />

made it to a work-horse in reconstructive maxillo-facial surgery. The<br />

aim of the present retrospective analyses of a collection of n=135 cases,<br />

which were treated in two highly specialized institutions for craniomaxillo-facial<br />

surgery, was to illustrate the intriguing applications of<br />

the ALT flap as well as the clinical robustness and excellent functional<br />

outcome of this approach. The overall flap failure rate was low in this<br />

patient series (13/135) and comparable to other free flaps utilized in the<br />

head and neck area like the radial forearm flap. It was successfully used<br />

for reconstruction in case of oral cavity, oropharynx, external skin and<br />

maxilla defects after ablative tumor surgery. For more bulky reconstructions<br />

after total parotidectomy or skull base surgery, a muscle component<br />

was frequently harvested and transferred additionally. When<br />

a thinner, more pliable flap was required for the reconstruction of the<br />

floor of the mouth, suprafascial anterolateral thigh flaps were raised or<br />

the flaps were thinned after harvesting. In conclusion, the anterolateral<br />

thigh flap is a highly versatile and reliable flap for use in the reconstruction<br />

of various soft tissue defects of the head and neck area. This flap<br />

has gained great popularity given its versatility, ability for a two-team<br />

approach, and minimal donor site morbidity.<br />

110 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0112<br />

The determination of urokinase plasminogen activator (uPA) and<br />

plasminogen activator inhibitor 1 (PAI-1) based on immunohistochemistry<br />

and semiquantitative image analysis represent a<br />

potential alternative to the quantitative ELISA method<br />

*D .S . Lang1 , U . Heilenkötter2 , W . Schumm3 , B . Lie4 , O . Behrens5 , R . Simon6 ,<br />

E . Vollmer1 , T . Goldmann1 1Forschungszentrum Borstel, Klin . & Exp . Pathologie, Borstel, Deutschland,<br />

2Klinikum Itzehoe, Frauenklinik, Itzehoe, Deutschland, 3Krankenhaus Rendsburg, Pathologie, Rendsburg, Deutschland, 4Paracelsus Klinik Henstedt-Ulzburg,<br />

Frauenklinik, Henstedt-Ulzburg, Deutschland, 5Krankenhaus Rendsburg, Frauenklinik, Rendsburg, Deutschland, 6UKE HH-Eppendorf,<br />

Pathologie, Hamburg, Deutschland<br />

Aim. During the last few years, the tumor associated proteolytic factors<br />

urokinase Plasminogen-Activator (uPA) und plasminogen activator inhibitor<br />

1 (PAI-1) have gained clinical significance as invasion markers<br />

with both predictive and prognostic potential for individual treatment<br />

regimens of patients with breast cancer. A commercially available ELI-<br />

SA test as the only validated method for routine determination is laborious<br />

with the need of considerable amounts of fresh, shock frozen material.<br />

Therefore, this study was aimed at the establishment of a reliable<br />

alternative method suitable for routine procedures based on immunohistochemistry<br />

(IHC) and image analysis to overcome these drawbacks.<br />

Materials and methods. Tissue samples of primary ductal invasive breast<br />

cancer were treated with the alternative HOPE (Hepes-glutamic acid<br />

buffer mediated Organic solvent Protection Effect) fixation and paraffin-embedding<br />

method that does not require antigen retrieval. For enhanced<br />

comparability, the specimens were arranged on tissue microarrays<br />

(TMA) and stained with the respective specific primary antibodies<br />

(mouse anti-human uPA, DCS, Hamburg; goat anti-human PAI-1, Morphosys,<br />

Düsseldorf). The intensity of the cytoplasmic staining patterns<br />

of both proteins was measured at the tumor front by adapted semiquantitative<br />

image analyzing.<br />

Results. There was a statistically significant correlation between the semiquantitative<br />

data based on IHC for uPA and PAI-1 (uPA n=67; PAI-1<br />

n=27) and the corresponding quantitative ELISA results with p=0.011<br />

and p=0.029, respectively. Analogous to the ELISA method, a cut off<br />

value of >115 was obtained for the semiquantitative uPA results (χ2-test,<br />

two-tailed p=0.032).<br />

Conclusion. These first results strongly suggest that an optimized IHC<br />

protocol combined with a matched image analysis can provide a reliable<br />

alternative method for the commercial ELISA test. The validation<br />

of these experimental results will be achieved by incorporating the relevant<br />

clinical data of the corresponding patients examined in this ongoing<br />

study conducted in collaboration with the Holsteinisches Brustzentrum.<br />

0116<br />

Classification of human mucosa by in-vivo hyperspectral imaging<br />

*A . Gerstner1 , W . Laffers1 , R . Martin2 , B . Thies2 1Universitätsklinikum Bonn, Klinik für HNO-Heilkunde/Chirurgie, Bonn,<br />

Deutschland, 2Universität Marburg, Geographische Fakultät, Marburg,<br />

Deutschland<br />

Aim. To give proof of principle for the applicability of hyperspectral<br />

imaging for the analysis and classification of human mucosal surfaces<br />

in vivo.<br />

Material and methods. The larynx as a well-defined anatomical region<br />

was chosen as a prototypical surgical test area. The standard intra-operative<br />

setting for microlaryngoscopies was modified by using a polychromatic<br />

light source and a synchronous triggered monochromatic<br />

CCD-camera. Image stacks were analyzed by established software tools


for principal component analysis and unsupervised hyperspectral classification.<br />

Results. Sequential illumination of the same field of view by stepwise<br />

increasing wavelengths (390–680 nm, with 10 nm steps) yielded a hyperspectral<br />

image datacube of the mucosa. These lambda-image stacks<br />

could be analyzed and classified by commercially available software. In<br />

principal component analysis, images at 590–680 nm loaded most onto<br />

the first principal component. Typically, the first principal component<br />

contained 95% of the total information. Unsupervised hyperspectral<br />

classification clustered the data thus highlighting areas of altered mucosa.<br />

Conclusion. The technology of hyperspectral imaging can be applied to<br />

mucosal surfaces. This approach opens the way to analyze spectral characteristics<br />

of histologically different lesions in order to build up a spectral<br />

library and to allow non-touch classification of mucosal changes.<br />

0135<br />

Paraoxonase-2 (PON-2) expression in four head and neck<br />

carcinoma cell lines as potential predictor of resistance against<br />

radiotherapy – a pilot study<br />

*M . Krüger1 , M . Moergel1 , B . Al-Nawas1 , S . Horke2 1Universitätsmedizin Mainz, Klinik und Poliklinik für Mund- Kiefer- und<br />

Gesichtschirurgie, Mainz, Deutschland, 2Universitätsmedizin Mainz, Institut<br />

für Pharmakologie, Mainz, Deutschland<br />

Background. Apoptosis induction is a key mechanism of radio- and<br />

chemotherapy. Unfortunately, carcinomas often present altered protein<br />

expression which leads to upregulation of antiapoptotic proteins.<br />

It is known, that changes in redox-potential of tumors have critical<br />

influence on the intrinsic apoptotic pathway. Recent studies showed a<br />

protective effect against ROS (reactive oxygen species) for cells of the<br />

vascular system by Paraoxonase-2 (PON-2). In vascular cells PON-2 is<br />

mainly localized to nuclear lamina, endoplasmatic reticulum (ER) and<br />

mitochondria, with potential to prevent endothelial cells to undergo<br />

mitochondrial induced apoptosis. Since irradiation typically induces<br />

elevated levels of ROS and subsequent oxidative damage in nucleus,<br />

mitochondria and ER, elevated expression of PON-2 could also protect<br />

squamous cell carcinoma against oxidative stress. The present study is<br />

the first to examine expression pattern and potential functional influence<br />

of PON-2 in squamous cell carcinoma of the head and neck.<br />

Methods. Therefore, the basal PON-2 expression was determined in vitro<br />

in four squamous cell carcinoma cell lines by western blot analysis.<br />

Further visualisation of PON-2 utilized immunfluorescence staining.<br />

We also examined induction of PON-2 protein expression after singular<br />

radiation with 7 Gray 24, 48 and 72 hours after irradiation. Simultaneously,<br />

activity of caspase 3/7 was examined for apoptosis detection.<br />

Finally expression of PON-2 was tested in 5 patients with oral carcinoma<br />

within tumor tissue compared to normal mucosa.<br />

Results. The present study revealed regular expression of PON-2 in<br />

carcinoma of the head and neck region for the first time. Furthermore,<br />

the basal PON-2 expression pattern varies in different individuals. We<br />

found that irradiation leads to a general upregulation of PON-2 expression.<br />

Intriguingly, higher basal levels of PON-2 seem to protect cells<br />

against radiation-induced apoptosis.<br />

Discussion. The pilot study showed regular but variable expression of<br />

PON-2 in head and neck carcinoma. Furthermore, the in vitro model<br />

revealed elevated levels of PON-2 in head and neck carcinoma possibly<br />

protect the tumor against radiation-induced apoptosis. Thus, characterization<br />

of PON-2 expression might serve as clinical prediction marker<br />

for irradiation response and patient outcome. Since the distinct molecular<br />

mechanism remains still unclear, further experiments are needed<br />

to unveil the biological role of PON-2 in squamous cell carcinoma of the<br />

head and neck region.<br />

0137<br />

The migration of cultured glioblastoma cells is enhanced in<br />

response to radio therapy<br />

*T . Abeln1 , A . Kochanneck1 , K . Polz2 , C . Demirel2 , H . Bühler1 , I . Adamietz2 1Marienhospital, Klinikum der Ruhr-Universität Bochum, Institut für<br />

Molekulare Onkologie, Strahlenbiologie und Experimentelle Strahlentherapie,<br />

Herne, Deutschland, 2Marienhospital, Klinikum der Ruhr-Universität<br />

Bochum, Klinik für Strahlentherapie und Radio-Onkologie, Herne,<br />

Deutschland<br />

Background. Glioblastoma multiforme is a very aggressive tumor with<br />

an unfavorable prognosis for the patient. It is characterized by early recurrences<br />

frequently adjacent to the primary tumor. One reason, widely<br />

overlooked so far, might be based on the motility and migratory<br />

potential of the tumor cells. Low dose radiation in the penumbra of an<br />

irradiated volume might enhance the motility of the cells enabling them<br />

to escape the ionizing radiation. We, therefore, have analyzed whether<br />

or not low dose irradiation enhances the migration of cultivated glioblastoma<br />

cells.<br />

Methods. U343 or U87 cells were irradiated with 1.7 MeV electrons or<br />

with photons from a 15 MeV linear accelerator. For beta irradiation cells<br />

were placed as central spot in a culture dish on a 32P-activated foil and<br />

irradiated with 10×2 Gy. Subsequently the cells were stained with crystal<br />

violet to evaluate number and distance of satellite colonies. Cells irradiated<br />

with 4×2 Gy photons were placed in an environmental chamber<br />

and observed by time laps videography over a period of 5 days. The<br />

image stacks were analyzed with ImageJ as to distance and velocity of<br />

the cells.<br />

Results. In response to beta irradiation, the number of colonies increased<br />

from 33 (control) to 102 (irradiated). In addition the mean distance<br />

of the colonies to the central spot was significantly higher for the<br />

irradiated cells. The videographic analysis of the cells irradiated with<br />

photons revealed an increase in velocity that peaked at +80% 2 days after<br />

irradiation.<br />

Conclusion. The hypothesis of induced cellular migration in response<br />

to therapeutic irradiation is supported by our data. This effect might<br />

contribute to the poor prognosis of glioblastoma patients and has to be<br />

elucidated in further studies. There might be promising implications for<br />

new radio-chemotherapies e.g. with inhibitors of the focal adhesion kinase,<br />

a central point of cellular migration.<br />

0156<br />

A monocenter evaluation of the frequency of malignant tumours<br />

in the head and neck area<br />

*O . Thiele1 , R . Seeberger1 , J . Hoffmann1 , K . Freier1 1Universitätsklinik Heidelberg, Mund-, Kiefer-, Gesichtschirurgie, Heidelberg,<br />

Deutschland<br />

Introduction. In this study, we analysed how many patients were diagnosed<br />

with a malignant tumour in the head and neck area in our<br />

department of oral and maxillofacial surgery over a 20-year period<br />

(1989–2008). The aim of this study was to evaluate the distribution and<br />

frequency of different malignant diseases in our field.<br />

Results. 2277 patients with a malignant tumour were included. We found<br />

49 different histological diagnoses in this group. Overall, we found the<br />

squamous cell carcinoma to be the most frequent histological diagnosis<br />

(n=1903). Salivary gland tumours were the second entity (n=121),<br />

followed by basal cell carcinoma (n=117), sarcomas (n=62) and distant<br />

metastases to the head and neck (n=55), respectively. These subgroups<br />

consist of a broad variety of different histological entities. They must<br />

be very well defined by the pathologist because treatment strategies are<br />

different and depend upon the histological diagnosis. For example, the<br />

subgroup of the distant metastases consisted of 10 different histologies,<br />

the sarcoma subgroup consisted of 12 different histological entities. A<br />

“top 10 list” of the histological diagnoses would include squamous cell<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

111


Abstracts<br />

carcinoma, basal cell carcinoma, adenoid cystic carcinoma, malignant<br />

lymphoma, malignant melanoma, mucoepidermoid carcinoma, adeno<br />

carcinoma, osteosarcoma, rhabdomyosarcoma, cup- syndrome and<br />

plasmocytoma (in descending order of frequency).<br />

Conclusion. These results could be the basis for a standardised oncological<br />

training of young doctors and surgeons. Especially for the rare tumours,<br />

an interdisciplinary treatment is often necessary.<br />

0162<br />

Functional characterization connects individual patients’ mutations<br />

in ataxia telangiectasia mutated (ATM) with dysfunction of<br />

specific DNA double-strand break repair signalling pathways<br />

M . Keimling1 , M . Volcic1 , A . Csernok1 , B . Wieland2 , T . Dörk2 , *L . Wiesmüller1 1 2 Universität Ulm, Universitätsfrauenklinik, Ulm, Deutschland, Medizinische<br />

Hochschule Hannover, Frauenklinik im Forschungszentrum, Hannover,<br />

Deutschland<br />

ATM has multiple functions in homologous recombination (HR) and<br />

non-homologous end-joining (NHEJ), which lead to conflicting data<br />

regarding its DNA-double-strand-break-repair (DSBR) functions in<br />

previous studies. To explore the effect of clinically relevant ATM mutations,<br />

we characterized DSBR between mutated EGFP genes and ATM<br />

kinase signalling in 9 lymphoblastoid cell lines (LCLs) derived from<br />

Ataxia telangiectasia (AT) patients with defined versus 3 control LCLs<br />

without ATM mutations. Our study revealed that the DSBR phenotype<br />

in AT cells is not uniform, but appears to depend on the mutation<br />

causing up to 32-fold increased or up to 3-fold decreased activities in<br />

particular pathways. Comparison with a further 10 LCLs mutated in<br />

downstream factors (BRCA1, BRCA2, Nibrin, Rad50, Chk2) showed<br />

that the most diametrically opposed DSBR patterns in AT cells phenocopied<br />

NBN/RAD50 or BRCA1 mutations. Importantly, re-expressing<br />

wild-type ATM reversed these defects by 2.3- to 3.5-fold. Our data suggest<br />

that ATM stimulates repair proteins like Nibrin, which execute HR,<br />

single-strand annealing (SSA), and NHEJ. Concomitantly ATM minimizes<br />

error-prone repair (SSA, NHEJ) through activation of surveillance<br />

factors like BRCA1. Since the outcome of the individual defect can be<br />

diametrically opposed, distinguishing repair patterns in patients with<br />

ATM mutations may also be relevant regarding therapeutic responses.<br />

0210<br />

Targeting of cancer-associated fibroblasts for integrative tumor<br />

therapy<br />

*C . Monasterio1 , D . Jäger1 , C . Renner2 , S . Bauer1 , V . Teichgräber1 1Nationales Centrum für Tumorerkrankungen, Medizinische Onkologie,<br />

Heidelberg, Deutschland, 2Universitätsspital Zürich, Klinik und Poliklinik für<br />

Onkologie, Zürich, Schweiz<br />

Solid tumors modulate their environment to keep non-malignant stromal<br />

cells in a tumor-promoting state. Recent studies have revealed that<br />

the extrinsic cues provided by these stromal cells are essential for tumor<br />

cells to even manifest a fully transformed phenotype, angiogenesis<br />

and metastasis. Delineation of these cues and their underlying cellular<br />

and molecular pathways offers the opportunity of a new era of integrative<br />

cancer therapy based on combinatorial drug regiments that act<br />

synergistically to destroy the tumors by targeting both, the intrinsic<br />

and extrinsic oncogenic pathways. The main cells in the stroma of epithelial<br />

derived tumors are cancer-associated fibroblasts (CAF) that are<br />

critical to tumorigenesis and angiogenesis. CAFs also supply the tumor<br />

cells with growth factors and extracellular matrix (ECM) degrading<br />

enzymes. They are thus essential for tumor initiation as well as tumor<br />

progression and metastasis, suggesting that they represent an ideal<br />

cellular target of an integrative tumor therapy. Fibroblast activation<br />

Protein (FAP) is a well defined marker, expressed at high levels at the<br />

cell surface of CAFs. FAP, a constitutively active serine peptidase with<br />

112 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

both dipeptidyl peptidase IV (DPIV) and collagenase activity, promotes<br />

malignant and invasive behaviour of epithelial cancers and stromal<br />

expression levels correlate with worse prognosis. Normal adult tissue<br />

lacks FAP expression. In our experiments, we aimed for a reduction of<br />

the pro-tumorigenic activities of CAFs by downregulating FAP expression.<br />

The decrease of FAP at the CAF surface is achieved by two different<br />

ways: FAP internalisation using a specific antibody or FAP gene silencing<br />

by transfecting CAFs with small interfering RNA (siRNA). The<br />

anti-FAP IgG antibody ESC11 is cross-reactive for mouse and human<br />

FAP and binds to FAP at low nanomolar affinities. Regarding migration<br />

and invasion, the antibody converted a FAP-positive cellular phenotype<br />

into a negative one. Hence, the antibody is capable of reversing the FAP<br />

mediated migratory and invasive capacity. FAP RNA interference was<br />

equally effective when compared to the antibody. Thus, targeting FAP<br />

on CAF suppresses pro-tumorigenic activities and may result in a reduction<br />

of tumor progression and dissemination.<br />

0213<br />

Non-thermal irreversible electroporation (NTIRE): a novel cancer<br />

therapy<br />

*J .J . Wendler1 , M . Porsch1 , M . Pech2 , M . Schostak1 , J . Ricke2 , U .-B . Liehr1 1University of Magdeburg, Department of Urology and Paediatric Urology,<br />

Magdeburg, Deutschland, 2University of Magdeburg, Department of<br />

Radiology and Nuclear Medicine, Magdeburg, Deutschland<br />

Purpose. Typical features, current experimental knowledge and first clinical<br />

results of non-thermal irreversible electroporation (NTIRE) as a<br />

novel cancer therapy are presented. Future aspects of using NTIRE in<br />

oncology are discussed.<br />

Methods. NTIRE is a new localized soft-tissue ablation technology that<br />

applies high-voltage and high-current electrical pulses on a microsecond<br />

timescale with inserted needle-like electrodes. NTIRE just alters<br />

in vivo cells on a molecular level via induced high-electric field transmembrane<br />

voltage that causes an electrical breakdown of the dielectric<br />

lipid bilayer. This leads to a generation of nanometer sized pores with<br />

irreversible permeabilization of the cell membrane that ends in the loss<br />

of cell homeostasis and a delayed apoptosis within approximately 4 (±3)<br />

days. This new electrical, non-thermal technique does not alter the extracellular<br />

matrix and does not cause protein denaturation that is usually<br />

associated with other current ablation methods. Hence, anatomical<br />

borders as well as the organ integrity in the NTIRE ablation zone are<br />

safe. Since the 60s, NTIRE is used commercially as a bactericidal method<br />

in the food industry. Its use as an ablative method in the context of<br />

medical applications was not studied until the early 2000s.<br />

Results. Recent studies have shown the multidisciplinary potential in<br />

oncologic therapy. Previous experimental studies in animal models<br />

investigated the effect of NTIRE in liver, kidney, lung, prostate, heart,<br />

pancreas, brain, dermis, breast and muscle. Hereby, it could be demonstrated<br />

that NTIRE leads to a localized complete decellularization whereby<br />

the tissue matrix stays unaltered. Moreover, in the ablation zone located<br />

structures such as blood vessels, nerves, exocrine glandular ducts,<br />

urethra, ureter, renal calyxes and pelvis were spared out and showed<br />

regeneration. Thus, the organ function can be preserved. The first clinical<br />

results of human phase-I studies showed the safety and the potential<br />

of NTIRE in the ablation of renal cell cancer, hepatocellular cancer and<br />

metastases from different entities.<br />

Conclusions. NTIRE is a new soft-tissue ablation technology that offers<br />

minimal-invasive, locally targeted cancer therapy. It seems to be superior<br />

to current thermal ablation techniques and is a therapeutic alternative<br />

in inoperable cases with curative treatment intention. Further<br />

human studies are warranted to determine NTIRE ablation efficacy of<br />

this novel technology in different cancers.


0235<br />

Evaluation und Quantifizierung der Tumorperfusion von hyperarterialisierten<br />

Tumoren unter Nutzung der neuen computertomographischen<br />

4D-Volumenperfusion(VPCT)-Technik<br />

*M . Horger 1 , M . Schulze 1<br />

1 Eberhard-Karls-Universität Tübingen, Radiologie, Tübingen, Deutschland<br />

Ziel. Vergleich von Perfusionsparametern folgender maligner Tumoren:<br />

Sarkome, gastrointestinale Stroma-Tumoren (GIST), neuroendokrine<br />

Tumoren (NET) und Nierenzellkarzinome (RCC) mithilfe der VPCT<br />

zwecks Differenzierung und Charakterisierung (angiogenetische Signatur).<br />

Material und Methodik. Alle Tumoren wurden histologisch gesichert und<br />

keiner war bereits anbehandelt. Mittleres Patientenalter war 60 Jahre.<br />

Es wurden 18 Sarkome, 6 NETs, 5 RCCs und 5 GISTs untersucht. Folgende<br />

Parameter wurden gemessen: Blutfluss (BF in ml/100 ml/min),<br />

Blutvolumen (BV in ml/100 ml) und k-trans oder Gefäßwandpermeablitätskonstante<br />

(ml/100 ml/min) im Gesamttumor (avg) und in der<br />

am stärksten vaskularisierten Tumorregion (max). Für die statistische<br />

Analyse Mean-Werte wurden berechnet und die Ergebnisse als Means<br />

± SD angegeben. Die Differenz zwischen den jeweiligen Gruppen<br />

wurde mittels eines exakten „Wilcoxon signed-rank“-Test berechnet.<br />

Statistische Analysen wurden durchgeführt mittels JMP 9.0 (Biostatistische<br />

Software -SAS Institute); p


Abstracts<br />

0277<br />

The Sarcoma Treatment and Burden of Illness in North America<br />

and Europe (SABINE) Study – Results from <strong>German</strong>y<br />

*P . Reichardt1 , S . Bauer2 , A . Reichardt1 , M . Hoiczyk2 , M . Brunner3 , P . Kaskel4 ,<br />

L . Jönsson5 , A . Musayev5 , E . Landfeldt5 , T . Burke6 , C .-M . Wendtner3,7 1HELIOS Klinikum Bad Saarow, Hämatologie, Onkologie und Palliativmedizin,<br />

Sarkomzentrum <strong>Berlin</strong>-Brandenburg, Bad Saarow, Deutschland, 2Uni versitätsklinikum Essen, Innere Klinik (Tumorforschung), Westdeutsches<br />

Tumorzentrum, Essen, Deutschland, 3Universitätsklinikum Köln, Klinik I für<br />

Innere Medizin, Centrum für Integrierte Onkologie Köln-Bonn, Köln am<br />

Rhein, Deutschland, 4MSD SHARP & DOHME GMBH, Outcomes Research,<br />

Haar, Deutschland, 5Optum Insight, Stockholm, Schweden, 6MERCK & CO .,<br />

INC ., Global Health Outcomes, Whitehouse Station, NJ, USA, 7Städtisches Klinikum München GmbH, Klinikum Schwabing, Klinik für Hämatologie<br />

und Onkologie, München, Deutschland<br />

Background. Data on treatment patterns in patients (pts) with metastatic<br />

soft tissue sarcoma (mSTS) in general, and <strong>German</strong>y in particular,<br />

are limited. The objective of this study was to describe chemotherapy<br />

(CTX) treatment patterns after 1st attainment of favorable response<br />

(FR) to CTX in pts with mSTS in 7 European and 2 North American<br />

countries.<br />

Methods. Data from medical records were collected from initiation of<br />

1st line CTX to end of follow-up (EOFU) or death. Inclusion criteria<br />

were: 1) Confirmed mSTS diagnosis; 2) FR (complete, partial, or stable<br />

disease) after ≥4 cycles within any line of CTX; 3) Age ≥13 years. First<br />

line CTX was to be initiated between Jan 2004 and Dec 2009.<br />

Results. A total of 240 pts were enrolled at 25 sites, with 214 comprising<br />

the evaluable patient set (n=14 from 3 <strong>German</strong> sites). In contrast to other<br />

countries, <strong>German</strong> sites were allowed to recruit only non-deceased pts.<br />

The mean age at diagnosis of mSTS pts was 54.8 years and 41.6% were<br />

male (52.7 years and 28.6% male for <strong>German</strong> pts). The most common<br />

pathologies were leiomyosarcoma (46.3%) and liposarcoma (26.2%). The<br />

mean time from CTX initiation to EOFU or death was 27.2 months,<br />

with 62.6% of pts dying during follow-up. A total of 585 lines of CTX<br />

were used by 213 pts (mean = 2.7 lines). The most commonly used 1st<br />

line CTX regimens were doxorubicin (36.6%), doxorubicin/ifosfamide<br />

(19.2%), and gemcitabine/docetaxel (8.9%). FR to CTX was first observed<br />

in 1st line (81.8%) or 2nd line plus (18.2%) CTX. The main reason for<br />

CTX discontinuation in lines where FR was observed was a pre-defined<br />

number of CTX cycles given for 1st and 2nd lines of therapy (64.0%<br />

and 34.3%, respectively), and disease progression for 3rd line (52.4%).<br />

The median overall survival from first FR to CTX was 26.3 months (95%<br />

CI: 21.8, 31.9). For <strong>German</strong> pts, undifferentiated pleomorphic sarcoma/<br />

malignant fibrous histiocytoma and synovial sarcoma were the most<br />

common STS pathologies. A total of 43 lines of CTX were used by 14 pts<br />

(mean =3.1 lines) over 36.7 months of follow-up. FR was observed in 1st<br />

line CTX for 71% of <strong>German</strong> patients. Ifosfamide/epirubicin was the<br />

most commonly used 1st line CTX regimen (43%), while gemcitabine<br />

(29%) and trofosfamide (29%) were the most commonly used regimens<br />

in 2nd line.<br />

Conclusions. Multiple lines of CTX are used to treat mSTS pts with FR<br />

to CTX. The data will assist in service planning and evaluation of new<br />

therapies for mSTS pts with FR to CTX in <strong>German</strong>y.<br />

114 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0320<br />

CD90-positive perivascular cells as mediators of immunosuppression<br />

in human malignant glioma<br />

*K . Ochs1,2 , F . Sahm3,4 , C . Opitz1,2 , U . Litzenburger1,2 , A . von Deimling3,4 ,<br />

W . Wick1,5 , M . Platten1,2 1 2 Neurologische Klinik, Neuroonkologie, Heidelberg, Deutschland, Deutsches<br />

Krebsforschungszentrum, Experimentelle Neuroimmunologie,<br />

Heidelberg, Deutschland, 3Pathologisches Institut, Neuropathologie, Heidelberg,<br />

Deutschland, 4Deutsches Krebsforschungszentrum, Klinische Kooperationseinheit<br />

Neuropathologie, Heidelberg, Deutschland, 5Deutsches Krebsforschungszentrum, Klinische Kooperationseinheit Neuroonkologie,<br />

Heidelberg, Deutschland<br />

Background. Malignant gliomas are primary brain tumors characterized<br />

by an extensive neoangiogenesis including the recruitment of endothelial<br />

cells and pericytes. Besides their role in vascular development,<br />

perivascular cells have been discussed as a source of undifferentiated<br />

mesenchymal stem cell-like cells. CD90-positive (CD90+) bone marrow-derived<br />

mesenchymal stem cells (MSC) exert immunosuppressive<br />

properties. In the present study, we analyzed the immunomodulatory<br />

effect of cerebral perivascular cells in human malignant glioma.<br />

Methods. The influence of human cerebral CD90+ pericytes (HBVP)<br />

on allogeneic or mitogen-activated T cell responses was assessed and<br />

compared to the inhibitory capability of MSC. Using immunohistochemical<br />

stainings, the presence of CD90+ cells and blood vessel associated<br />

leukocyte common antigen (LCA) expressing cells in human healthy<br />

brain and glioma tissue was analyzed.<br />

Results. Proliferation of peripheral blood mononuclear cells (PBMC)<br />

was equally effective inhibited by HBVP than by MSC. HBVP-caused<br />

immunosuppression was mediated by prostaglandin E2, nitric oxide,<br />

soluble human leukocyte antigen-G, hepatocyte growth factor and<br />

transforming growth factor-β. While in human healthy brain only neurons<br />

showed CD90 expression, in human glioblastoma tissue CD90+<br />

cells were associated with tumor blood vessels. These CD90+ cells were<br />

identified as platelet derived growth factor receptor-β expressing perivascular<br />

cells distinct from CD31 expressing endothelial cells. Analysis<br />

of CD90 expression levels in glioma WHO grade II-IV demonstrated a<br />

positive correlation between perivascular CD90 expression and glioma<br />

malignancy and a negative correlation between perivascular CD90 expression<br />

and the presence of blood vessel associated leukocytes.<br />

Summary. Human cerebral CD90+ perivascular cells possess a T cell<br />

inhibitory capability comparable to the immunosuppressive phenotype<br />

of human bone marrow-derived MSC. Presence of CD90+ perivascular<br />

cells in malignant glioma is associated with a decreased perivascular<br />

leukocyte infiltration. Thus, besides their critical role in tumor vascularization,<br />

perivascular cells may also promote glioma immunevasion.<br />

0326<br />

Prognosis and treatment variables in primary and secondary<br />

angiosarcomas<br />

*J . Hartmann1 , V . Hanf2 , D . Drücke3 , E . Dehnke1 , H . Kross1 1Universitätsklinikum Schleswig-Holstein Kiel, Klinik für Innere Med . II, Hämatologie<br />

und Internische Onkologie, Kiel, Deutschland, 2Klinikum Fürth,<br />

Frauenklinik, Fürth, Deutschland, 3Universitätsklinikum Schleswig-Holstein<br />

Kiel, Plastische, Hand- und Mikrochirurgie, Kiel, Deutschland<br />

Background. Angiosarcoma (AS) can be divided into primary (PAS) and<br />

secondary angiosarcoma (SAS) the latter occurring after prior radiation<br />

therapy. The objective was to compare clinicopathologic factors for both<br />

groups.<br />

Methods. AS cases of the Sarcoma Center North were identified. In a<br />

retrospective analysis, patient characteristics, treatment modality, and<br />

survival were determined and compared for both types of AS, PAS and<br />

SAS.


Results. Fourty patients (pts) with PAS and 24 pts with SAS were identified,<br />

overall representing 5.7% of pts in the database. Patients with PAS<br />

were younger at time of diagnosis than pts with SAS (median age: 52 years<br />

vs 65 years, respectively). The proportion of female patients was 57.5<br />

% for PA, but 95.8 % for SA. The distribution of cancer types was uneven,<br />

with AS of the breast accounting for 17.5% of PAS, but 87.5% of SAS. For<br />

the majority of PAS (63.2%), tumor size was ≥5 cm, as opposed to only<br />

8.3% of SAS with tumor size ≥5 cm. At the time of diagnosis of the angiosarcoma,<br />

42.5% of PAS had metastasized, but only 8.3% of SAS. All<br />

pts with SAS had previously received radiation therapy with a median<br />

time from radiation to diagnosis of SAS of 6.9 years (range: 0.7–24.8).<br />

The proportion of pts treated with surgery was the same for both groups<br />

with 79%, however, more pts with PAS received chemotherapy. 35.5% of<br />

PAS were treated with radiotherapy and 13.3% received radiochemotherapy.<br />

23.5% of SAS pts received a second course of radiation as part of<br />

their SAS treatment. While only half of the PAS relapses (53.6%) were<br />

local, 88.9% of SAS developed a local relapse. Median PFS was 11 months<br />

for PAS and 17 months for SAS (OR: 1.45; CI 95%, 0.71–2.96; p=0.31). Median<br />

overall survival (OS) was 18 months for PAS and 36 months for<br />

SAS (OR: 1.74; CI 95%, 0.85–3.59; p=0.13). Both PFS and OS (n.s.) were<br />

higher in pts with R0 compared to R1/2 resection, particularly for breast-AS<br />

(p=0.01). Metastases at time of diagnosis lowered PFS (n.s.) and<br />

OS (p=0.02). Non-breast AS had a lower PFS (p=0.01) and trend for inferior<br />

OS (p=0.09).<br />

Conclusions. As expected, PAS and SAS were heterogeneous in their clinical<br />

behaviour. PAS consisted mostly of non-breast AS in both males<br />

and females, while SAS were primarily located in the breast of younger<br />

female pts. SAS were detected at an earlier stage than PAS. Overall the<br />

prognosis is limited and early detection in a localized stage is warranted.<br />

0340<br />

Overview of the development of catumaxomab in malignant<br />

ascites<br />

*C . Schmidt-Rimpler1 , A . Burges2 , P . Ruf3 , E . Schulze1 , M .M . Heiss4 , S .L . Parsons5<br />

1 2 Fresenius Biotech GmbH, Medical Affairs, Munich, Deutschland, Clinic and<br />

Policlinic, LMU Munich, Gynecology and Obstetrics, Munich, Deutschland,<br />

3TRION Research GmbH, Antibody Development, Munich, Deutschland,<br />

4 5 Cologne-Merheim Medical Center, Cologne, Deutschland, Nottingham<br />

University Hospitals NHS Trust, Nottingham, UK<br />

Background. Malignant ascites (MA) is a manifestation of advanced<br />

malignancies, associated with a poor prognosis and poor survival.<br />

The trifunctional antibody catumaxomab (Removab®) is the first drug<br />

worldwide with an approval (EU) for intraperitoneal (i.p.) treatment of<br />

malignant ascites due to EpCAM-positive carcinomas. Catumaxomab<br />

targets EpCAM (epithelial cell-adhesion molecule) on tumor cells and<br />

CD3 on T cells in parallel. In addition, its Fc region binds to accessory<br />

cells like macrophages and natural killer cells. These bindings induce<br />

a simultaneous activation of immune cells resulting in an effective destruction<br />

of tumour cells.<br />

Methods. The clinical development of catumaxomab in MA is based<br />

on three key studies: a phase I/II dose finding study in patients with<br />

MA due to ovarian cancer, a pharmacokinetic study and a pivotal II/III<br />

study, the latter in patients with MA due to epithelial cancer. Further<br />

studies are currently ongoing.<br />

Results. In the dose-finding study a MTD of 10, 20, 50, 200 and 200 µg<br />

i.p. was determined, resulting in the recommended dose of 10, 20, 50,<br />

150 µg. In addition, first signs of efficacy could be shown in this phase I/<br />

II study: Reduction of ascites flow, no puncture in 22 patients until end<br />

of study, reduction of tumor cells in the ascites flow, which are regarded<br />

as the main cause of ascites. The phase II pharmacokinetic study<br />

revealed that i.p. catumaxomab becomes detectable in plasma. In the<br />

pivotal study a statistically significant and clinically relevant superio-<br />

rity of catumaxomab over paracentesis has been shown in treatment of<br />

MA. Moreover, the data indicate a positive influence of catumaxomab<br />

on overall survival. The safety profile of catumaxomab is predictable<br />

as it reflects its mode of action, i.e. the main adverse effects are typical<br />

signs of an immunological reaction.<br />

Conclusion. Catumaxomab administered as a sequence of four i.p. infusions<br />

resulted in a clear clinical benefit in the treatment of patients with<br />

malignant ascites. The predictable and manageable safety profile underlines<br />

the positive benefit/risk ratio. Catumaxomab in malignant ascites<br />

is further being investigated in several studies (CASIMAS, SECIMAS,<br />

CARMA, ACT). Other indications, e.g. peritoneal carcinomatosis<br />

and gastric cancer and other administration routes, e.g. intravenously<br />

are under investigation. All carcinomas expressing EpCAM could be<br />

potential targets for catumaxomab in the future.<br />

0346<br />

Interim analysis of a cooperative registry to optimize neoadjuvant<br />

treatment for large size, high grade non-rhabdomyo soft<br />

tissue sarcoma (NRSTS; IAWS-2)<br />

*J . Hartmann1 , V . Grünwald2 , F . Mayer3 , A . Wolff4 , H .-G . Mergenthaler5 ,<br />

W . Blau6 , I . Sturm7 , V . Budach8 1Universitätsklinikum Schleswig-Holstein Kiel, Klinik für Innere Med . II,<br />

Hämatologie und Internische Onkologie, Kiel, Deutschland, 2Medizinische Hochschule Hannover, Internistische Onkologie, Hannover, Deutschland,<br />

3 4 Universität Tübingen, CCC Tübingen, Tübingen, Deutschland, Universität<br />

Würzburg, Hämatologie/Onkologie, Würzburg, Deutschland, 5Klinikum Stuttgart, Hämatologie und Internistische Onkologie, Stuttgart, Deutschland,<br />

6Universitätsklinikum Gießen und Marburg, Internistische Onkologie,<br />

Gießen, Deutschland, 7Charité – Universitätsmedizin <strong>Berlin</strong>, Hämatologie/<br />

Onkologie, <strong>Berlin</strong>, Deutschland, 8Charité – Universitätsmedizin <strong>Berlin</strong>, Klinik<br />

für Strahlentherapie, <strong>Berlin</strong>, Deutschland<br />

Introduction. The role of adjunctive anthracycline and ifosfamide based<br />

combination chemotherapy prior to or after resection in the treatment<br />

of adult and childhood “so-called” NRSTS continues to be controversial.<br />

In order to examine whether concomitant chemotherapy with doxorubicin<br />

(DOXO) and ifosfamide (IFO) and radiation (RTX) improves<br />

disease-free survival for patients with resectable, large (>5 cm), high<br />

grade (G2/3) adult-type NRSTS compared to surgery alone (and RTX if<br />

indicated/applicable) a multicenter register was launched.<br />

Methods. Patients (pts) with locally advanced (stage III) or locally recurrent<br />

NRSTS were treated with IFO (3 g/sqm for 3 days)-DOXO<br />

(60 mg/sqm, day 1) ×3 cycles – IFO (3 g/sqm for 2 days) ×2 cycles + RTX<br />

50.4 Gy* – IFO-DOXO ×1 (*if indicated/applicable, otherwise IFO-DO-<br />

XO ×5 cycles) prior to surgery. Key inclusion criteria were age ≤65 years<br />

at date of biopsy, histopathologically confirmed high grade NRSTS<br />

according FNCLCC, size >5 cm, no evidence of metastatic disease, no<br />

previous cytotoxic or radiation treatment. This interim analysis evaluates<br />

the pCR rate.<br />

Results. 63 pts with locally advanced NRSTS were included, but 5 were<br />

not eligible. Histologies were pleomorphic sarcoma, NOS (n=20), liposarcoma<br />

(11), synovial sarcoma (7), leiomyosarcoma (5), myxofribrosarcoma<br />

(6), MPNST (2), other (5). Median age was 50 yrs (range: 19–65).<br />

Other pts characteristics: male/female ratio was 1.2; grade 2 (21), grade 3<br />

(34), median size 10 cm (range: 4–23); localisation: extremity 36, central<br />

10, head and neck 5, retroperitoneal 3, girdle 2. Fourty-two pts are currently<br />

evaluable: 35 completed treatment and surgery. Six pts stopped<br />

treatment due to toxicity and 1 pt due to progressive disease. Pathological<br />

assessment according to Salzer-Kuntschik was performed in 38 pts:<br />

14 pts achieved complete regression (grade 1) and 10 pts grades 2 and 3<br />

(


Abstracts<br />

Conclusions. 63% of all patients responded well to concomitant IFO-DO-<br />

XO + RTX (regression grades 1–3, Salzer-Kuntschik). These preliminary<br />

results in terms of pathologic response suggest that the combination of<br />

neoadjuvant chemo- and radiotherapy may have a role in selected pts<br />

with high risk NRSTS. Accrual is ongoing.<br />

0360<br />

Catumaxomab observational study to investigate efficacy and<br />

safety profile in clinical practice – the CARMA study<br />

*V . Kunzmann1 , J . Sehouli2 , B . Schmalfeldt3 , P . Wimberger4 , C .M . Kurbacher5 ,<br />

G .-F . Tempelhoff6 , F . Breuer7 , H . Schulz7 , M . Welslau8 , D . Finas9 , J . Sagasser10 ,<br />

M . Kiehl11 , S . Fruehauf11,12 , M .M . Essing13 1 2 Medical Clinic and Policlinic II Würzburg, Würzburg, Deutschland, Charité<br />

Campus Virchow, Clinic for Gynaecology and Obstetrics, <strong>Berlin</strong>, Deutschland,<br />

3Technical University Munich, Clinic for Gynaecology, Munich,<br />

Deutschland, 4University Essen, Clinic for Gynaecology, Essen, Deutschland,<br />

5 6 Medical Centre Bonn Friedensplatz, Bonn, Deutschland, Clinic Aschaffenburg,<br />

Clinic for Gynaecology, Aschaffenburg, Deutschland, 7Private Practice Pioh, Frechen, Deutschland, 8Private Practice Klausmann, Welslau,<br />

Aschaffenburg, Deutschland, 9University Schleswig-Holstein, Clinic for<br />

Gynaecology and Obstetrics, Lübeck, Deutschland, 10Clinic Augsburg, Clinic<br />

for Gynaecology, Augsburg, Deutschland, 11Clinic Frankfurt/Oder, Medical<br />

Clinic I, Frankfurt/Oder, Deutschland, 12Paracelsus-Clinic, Haematology and<br />

Oncology, Osnabrueck, Deutschland, 13Fresenius Biotech GmbH, Medical<br />

Affairs, Munich, Deutschland<br />

Background. The trifunctional anti-EpCAM/anti-CD3 antibody catumaxomab<br />

is approved in the EU for intraperitoneal (i.p.) treatment of<br />

malignant ascites in patients with EpCAM-positive carcinomas. Clinical<br />

data for catumaxomab are based on the randomized, pivotal trial<br />

and several phase I/II trials. So far, the routine use of catumaxomab<br />

in clinical practice has not been evaluated systematically. Therefore, a<br />

large prospective observational study was started in 2010, investigating<br />

the administration of catumaxomab in patients with malignant ascites<br />

under routine conditions in daily clinical practice.<br />

Methods. In this study, a total of 160 patients with malignant ascites due<br />

to EpCAM-positive carcinomas (e.g. ovarian, breast, gastrointestinal<br />

cancer) treated with i.p. catumaxomab under routine conditions in clinical<br />

practice will be evaluated. Participating centres are hospitals and<br />

practices of oncologists in <strong>German</strong>y and Austria. The following data are<br />

being collected (amongst others): demographic factors, cancer disease,<br />

distant metastasis, chemotherapeutic regimen, surgery, laboratory parameters,<br />

ascites signs and symptoms, management of catumaxomab<br />

therapy, number of punctures, tumor response, survival, quality of life,<br />

safety results. The data will be analyzed by descriptive statistical methods.<br />

Results. The results of the first interim analysis are reported. The analysis<br />

includes 50 patients with malignant ascites and catumaxomab treatment.<br />

Data for therapy management, clinical efficacy, quality of life and<br />

safety are presented. The collection of data is ongoing.<br />

Conclusion. We report here the data of an interim analysis with catumaxomab<br />

in malignant ascites. This is the first systematic report including<br />

a large patient number for the routine use of catumaxomab in clinical<br />

practice.<br />

116 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0378<br />

Ifosfamide, Carboplatin and Etoposide (ICE) in combination with<br />

regional hyperthermia (RHT) in the treatment of chemo-refractory<br />

high-risk soft-tissue sarcoma (HR-STS)<br />

*V . Buecklein1,2 , C . Limmroth1 , V . Milani1,2 , L . Lindner1 , S . Abdel-Rahman1 ,<br />

W . Hiddemann1 , R . Issels1,2 1LMU Munich, Department of Internal Medicine III, University Hospital<br />

Großhadern, Munich, Deutschland, 2HelmholtzZentrum Munich, CCG<br />

Hyperthermia, Institute of Molecular Immunology, Munich, Deutschland<br />

Background. A completed phase III trial (n=341, NCT00003052) showed<br />

that the addition of RHT to anthracycline-based chemotherapy was beneficial<br />

in terms of tumor response and survival in patients (pts) with<br />

locally advanced HR-STS (Lancet Oncol 2010). Treatment options in pts<br />

with chemo-refractory HR-STS remain limited; however retrospective<br />

data showed that ICE + RHT is safe and associated with tumor control<br />

in this situation (ASCO 2009 abstract 10581). Here, we analysed the efficacy<br />

in pts with progressive or recurrent disease treated prospectively<br />

in the aforementioned trial.<br />

Methods. Pts (≥18 years, PFS ≤2) with locally advanced HR-STS without<br />

(LA) or with metastases (LAM) showing progressive disease or relapse<br />

after chemotherapy were enrolled. ICE consisted of ifosfamide 1.5 g/m2,<br />

carboplatin 100 mg/m2 and etoposide 150 mg/m2 on days 1–4 followed<br />

by G-CSF support. RHT was performed on days 1 and 3. Treatment was<br />

repeated on day 28. Endpoints were toxicity (CTC criteria), response<br />

(RECIST), progression-free survival rates (PFR) after 3 and 6 months<br />

(EORTC criteria) and overall survival (OS).<br />

Results. 21 pts (10 female, 11 male, median age 57 years) with tumors located<br />

at the trunk, abdomen or retroperitoneum (n=14) or extremities<br />

(n=7) were analysed. Histological subtypes included liposarcoma (n=7),<br />

leiomyosarcoma (n=4), MPNST (n=3) and others (n=7) with G2 (10 pts)<br />

or G3 (11 its) tumors. 12 pts (57%) with LA and 9 pts (43%) with LAM<br />

entered the ICE + RHT protocol. A median of four (range 1–8) ICE<br />

cycles were applied combined with a median of six RHTs (range 2–16).<br />

Haematological toxicity grade III/IV occurred in 14 pts (67%); fever in<br />

cytopenia was seen in 4 pts (19%). Dose reduction was necessary in 43%<br />

of all pts. In 18 pts evaluable for response, the disease control rate (0 CR,<br />

2 PR, 8 NC) was 55%. The PFR after 3 and 6 months was 90% and 50%,<br />

respectively. Median OS in pts with LA was 23 months (CI 95: 1–77) and<br />

in pts with LAM 11 months (CI 95: 9.6–12.4).<br />

Conclusion. ICE chemotherapy combined with RHT offers an effective<br />

salvage therapy option in the treatment of chemo-refractory HR-STS,<br />

especially for pts with locally advanced tumors or limited metastatic<br />

disease.<br />

0391<br />

Can mathematical modelling help to cure glioblastoma multiforme?<br />

*A . Toma1 , A . Mang1 , S . Becker1 , T .A . Schütz1 , T .M . Buzug1 1Institut für Medizintechnik, Universität zu Lübeck, Lübeck, Deutschland<br />

Objective. Glioblastoma multiforme is the most aggressive primary<br />

brain tumour and has a quite worse prognosis due to the various and<br />

heterogeneous underlying processes. Most of these are complex and<br />

still not completely understood. To this end, we introduce mathematical<br />

methods for modelling tumour growth, providing means for simplifying<br />

the actual biological activities. We focus on the interaction and<br />

mutual dependence of the pre-dominant and most influencing factors<br />

only, to gain a better understanding of in-vivo processes. Mathematical<br />

modelling may open new ways for cancer prevention, clinical diagnostics<br />

and therapy. This requires the design of methods for simulating<br />

the spatio-temporal distribution and progression of a brain tumour.<br />

This can be achieved based on information obtained from in-vitro and<br />

animal models.


Methods. The computer simulation is controlled by a couple of different<br />

rules. For the migration of malignant glioma cells we use data obtained<br />

from a glioma cell invasion assay. The remaining parameters like the<br />

duration of the cell cycle are set according to values well-known from<br />

literature. Glucose, oxygen and the matrix degraded enzymes (MDE),<br />

such as the urokinase-type plasminogen activator or the matrix metalloproteinase<br />

are described as partial differential equations and are<br />

steering the tumour growth: the cells are attracted towards areas with<br />

higher nutrient concentration and may become necrotic in case of a<br />

high consumption rate of nutrients. The influence of the location of the<br />

tumour is described by the extracellular matrix. It is produced by cells<br />

and degraded by the MDE. To this end, the tumour cells are capable of<br />

migrating haptotactically through the extracellular space.<br />

Results. The simulated tumour depicts a distribution that can typically<br />

be observed in vivo: a big necrotic core surrounded by a rim of quiescent<br />

cells and an outer rim of strongly diffusive glioma cells. This is a strong<br />

characteristic of malignant brain tumours and is proven by in-vitro experiments.<br />

Conclusion. Mathematical methods for modelling glioblastoma are not<br />

yet ready for use in clinical practice. However, in the last few years the<br />

models made a big step in providing an accurate and realistic description<br />

of cancer progression. Hence, in near future, the question given in<br />

the title might be answered with “yes, indeed”. The model might then<br />

indicate the main processes that have to be inhibited for prevention.<br />

0441<br />

Trabectedin and heat-shock in human sarcoma cells in vitro<br />

*E . Kampmann1 , B . Otremba1 , S . Barth1 , E . Strozyk2 , R .D . Issels1,2 1Klinikum der LMU München, Medizinische Klinik III, München, Deutschland,<br />

2Helmholtz Zentrum München, KKG Hyperthermie, München,<br />

Deutschland<br />

Introduction. The completed randomized phase III EORTC/ESHO<br />

Intergroup trial (NCT 00003052) showed that regional hyperthermia<br />

combined with neoadjuvant chemotherapy is beneficial in terms of<br />

tumor response and survival of patients with high-risk soft tissue sarcoma<br />

(Lancet Oncol 2010). Trabectedin (ET-743), approved as secondline<br />

therapy for advanced STS, is a DNA minor groove binder with an<br />

unique mechanism of antiproliferative action. We investigate whether<br />

Trabectedin under heat conditions is more effective in human sarcoma<br />

cell lines.<br />

Methods. Trabectedin and heat-shock at clinically relevant temperatures<br />

were examined in 4 different human cell lines: Fibroblasts (MRC-5),<br />

leiomyosarcoma (SKUT-1), liposarcoma (SW872) and synovial sarcoma<br />

(SW982). Cells were treated with 0.1–1000 pM trabectedin followed by<br />

heat exposure in an incubator at 41.8°C and 43°C for 90 or 150 min. Cell<br />

viability was assessed using the WST-assay and measuring clonogenic<br />

survival. The expression of the heat-shock proteins HSP27, HSP70 and<br />

HSP90 was analysed by immunoblotting.<br />

Results. Human synovial sarcoma cells and leiomyosarcoma cells were<br />

most susceptible to any type of heat-shock whereas fibroblasts were almost<br />

resistant. In all investigated cell lines, HSP27 and HSP70 were induced<br />

immediately after heat-shock but not HSP90. Trabectedin did not<br />

influence the expression patterns of these HSPs. All cell lines showed<br />

reduced viability after low doses of trabectedin (approx. 10–100 pM) at<br />

37°C. Human synovial sarcoma cells were most susceptible and fibroblasts<br />

were most resistant. Trabectedin and heat-shock showed an additive<br />

effect in reducing clonogenic survival in human synovial sarcoma<br />

cells and at high temperature-time doses (150 min/43°C) in leiomyosarcoma<br />

cells.<br />

Conclusion. After in vitro heat exposure combined with trabectedin, heat-susceptible<br />

human synovial sarcoma and leiomyosarcoma cells show<br />

additive effects in terms of reduced cellular viability. The mechanisms<br />

of interaction between heat and trabectedin with regard to DNA repair<br />

(nucleotide excision repair, homologous recombination repair) in these<br />

human cell lines is under current investigation.<br />

0446<br />

Effectiveness of alkylating chemotherapy after chemo-radiotherapy<br />

with Temozolomide in patients with recurrent glioblastoma<br />

*A . Mohr1 , S . Rieken1 , T . Welzel1 , W . Wick2 , J . Debus1 , S .E . Combs1 1Univ .-Klinikum Heidelberg, Strahlentherapie, Heidelberg, Deutschland,<br />

2Univ .-Klinikum Heidelberg, Neuroonkologie, Heidelberg, Deutschland<br />

Introduction. Treatment of recurrent gliomas was often performed with<br />

alkylating nitrosoureas as a standard approach. However, the change<br />

of treatment standard after primary diagnosis fo glioblastomas (GBM)<br />

adding temozolomide (TMZ) has lead to the fact that most patients with<br />

recurrent gliomas have been treated by an alkylating chemotherapeutic<br />

agent. In the present work we analyzed efficacy of nitrosoureas applied<br />

for tumor progression after TMZ in patients with recurrent GBM.<br />

Patients and methods. From 1999 to 2008, we treated 242 patients with<br />

GBM with combined radio-chemotherapy with TMZ. At the time<br />

of progression, 30 of the 242 patients were treated with nimustine<br />

(ACNU). In 9 patients, ACNU as applied for first relapse, and in 15 and<br />

4 patients for the second and third recurrence. 17 patients were treated<br />

with ACNU mono, 13 with a combined therapy with ACNU and vepesid<br />

(VM26; n=11) or cytarabine (ARA-C; n=2).<br />

Results. The 6 and 12 months survival after therapy with ACNU was<br />

56.7% and 31.1% respectively. Median survival after therapy with ACNU<br />

was 7 months. The group of patients who received ACNU after the first<br />

relapse of the tumour showed a higher survival with 77.8% at 6 months<br />

compared to the group of patients treated with ACNU after the second<br />

and third relapse with 42.9% at 6 months; moreover, median survival<br />

was 9 months compared to 4 months after treatment for first compared<br />

to second or third recurrence.<br />

Conclusion. The treatment with ACNU seems to have advantages for<br />

survival of patients treated with TMZ mainly in an early state of relapse.<br />

0453<br />

Proton and carbon ion radiotherapy for primary brain tumors<br />

and meningiomas delivered with active rasterscanning at the<br />

Heidelberg Ion Therapy Center (HIT): early treatment results and<br />

study concepts<br />

*S . Rieken1 , D . Habermehl1 , T . Haberer2 , O . Jaekel2 , J . Debus1,2 , S .E . Combs1 1Univ .-Klinikum Heidelberg, Strahlentherapie, Heidelberg, Deutschland,<br />

2Universitätsklinikum Heidelberg, HIT, Heidelberg, Deutschland<br />

Purpose. To investigate toxicity and patterns of early failure after proton<br />

and carbon ion therapy for gliomas and meningiomas.<br />

Patients and treatment: 33 patients with gliomas (n=26) and meningiomas<br />

(n=7) were treated with carbon ion (n=26) and proton (n=7) radiotherapy.<br />

In 11 patients, particle irradiation was combined with photon<br />

therapy. Temozolomide-based chemotherapy was combined with particle<br />

therapy in 17 patients. Particle therapy as reirradiation was conducted<br />

in 7 patients. Target volume definition was based upon CT, MRI and<br />

PET imaging. Response was assessed by MRI examinations. Toxicity<br />

was classified according to CTCAE v4.0.<br />

Results. Treatment was completed and tolerated well in all patients. Toxicity<br />

was moderate and included fatigue (24.2%), intermittent cranial<br />

nerve symptoms (6%) and single episodes of seizures (6%). At first and<br />

second follow-up examinations, mean maximum tumor diameters had<br />

slightly decreased from 29.7 mm to 27.1 mm and 24.9 mm respectively.<br />

Nine glioma patients suffered from tumor relapse, among these 5 with<br />

infield relapses, causing death in 8 patients. There was no recurrence or<br />

progression in any meningioma patient.<br />

Conclusion. Particle radiotherapy is safe and feasible in patients with<br />

primary brain tumors. It is associated with little toxicity. Target volu-<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

117


Abstracts<br />

me definition is recommended to take functional imaging analysis into<br />

account. A positive response of both gliomas and meningiomas, which<br />

is suggested in these preliminary data, must be evaluated in further clinical<br />

trials.<br />

0456<br />

Blood-derived miRNA as potential biomarkers for glioblastoma<br />

*P . Roth1 , J . Wischhusen2 , C . Happold1 , P . Anoop Chandran2 , S . Hofer1 , G . Eisele1<br />

, M . Weller1 , A . Keller3 1 2 UniversitätsSpital Zürich, Klinik für Neurologie, Zürich, Schweiz, Universität<br />

Würzburg, Würzburg, Deutschland, 3Universität Saarbrücken,<br />

Saarbrücken, Deutschland<br />

Background. Gliobastoma, one of the most aggressive human tumors,<br />

has a poor prognosis. The detection and later monitoring of the disease<br />

require biopsy or surgical resection and imaging technologies such as<br />

MRI. A simple and economical blood test would be desirable in order to<br />

allow for an early detection of progressive disease.<br />

Methods. In this study, we compared the miRNA expression profile<br />

in the peripheral blood from glioblastom patients compared to blood<br />

samples from age- and sex-matched healthy controls using a microarray<br />

platform.<br />

Results. Of 52 significantly deregulated miRNA, 27 were up-regulated<br />

(52%) while 25 miRNAs were down-regulated (48%). After correcting<br />

for multiple testing, 5 miRNA remained significant with a p-value of<br />

≤0.05. We then aimed at characterizing glioblastoma-specific miRNA<br />

fingerprints that allow for a classification of the samples as tumor or<br />

healthy controls. Using statistical learning techniques, a classification<br />

was obtained with an accuracy of 81%, specificity of 79%, and sensitivity<br />

of 83%. In a next step we analyzed the contribution of the deregulated<br />

miRNA to different biological pathways. This revealed a contribution<br />

of several miRNA to immune response mechanisms and an impact of<br />

others on cell cyle regulation and cellular proliferation. Some miRNA<br />

are involved in the process of apoptosis or angiogenesis.<br />

Conclusion. These findings suggest that the deregulated miRNA in glioblastoma<br />

patients may be linked to important biological pathways. Further,<br />

this proof-of-principle study demonstrates that blood-borne miR-<br />

NA profiles from glioblastoma patients contain characteristic patterns<br />

that warrant further exploration with regard to their potential use as<br />

disease-specific biomarkers.<br />

0467<br />

Chronic periodontitis as potential risk factor for the development<br />

of oral carcinoma – a retrospective case control study<br />

*M . Moergel1 , E .-J . Abt1 , B . Al-Nawas1 1Universitätsmedizin Mainz, MKG Chirurgie, Mainz, Deutschland<br />

Background. Recent findings strongly support the possibility of oral carcinoma<br />

induction by chronic inflammation apart from smoking and alcohol<br />

ingestion. Since western industrialized countries show increasing<br />

obsolescence and the incidence of chronic periodontitis rises with age,<br />

the present study investigated the presence of chronic periodontitis as<br />

independent risk factor for induction of oral carcinoma.<br />

Methods. The present retrospective study was designed as case control<br />

study. 186 patients treated for oral carcinoma at the Department for<br />

Oral and Maxillofacial Surgery, University Mainz between 2003 and<br />

2010 were included. 123 patients treated for affections other than malignancy<br />

(e.g. trauma) during the same period served as control. The<br />

mean alveolar bone loss as main symptom for chronic periodontitis was<br />

digitally measured on panoramic radiographs blinded to the patients<br />

clinical history. Tumor location and TNM status, smoking and alcohol<br />

consumption, age, gender, degree of education, body mass index and<br />

oral hygiene were noted by a detailed questionnaire.<br />

118 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Results. The mean alveolar bone loss of patients with oral malignancy<br />

was 4.3 vs. 2.3 within the control group. The difference was highly significant<br />

(p≤0.0001, 95% CI of difference: 1.08–1.68). The effect was independent<br />

from age and gender and an independent influence still detectable<br />

after adjustment for confounder in a multiple logistic regression model.<br />

As side note a higher BMI (body mass index) and a lower educational<br />

level were negatively correlated with clinical parameter for oral hygiene<br />

as well known risk factors for the development of chronic periodontitis<br />

with rising age.<br />

Discussion. The present study strongly supports the theory of oral carcinoma<br />

induction by presence of chronic inflammation as it is seen in patients<br />

with chronic periodontitis. Furthermore, the amount of alveolar<br />

bone loss followed by epithelial migration which is seen only in a subpopulation<br />

of patients with inflammation of the periodontal mucosa,<br />

additionally characterizes a cohort of patients at risk for oral malignancy.<br />

Prospective clinical trials are needed to investigate this special phenomenon.<br />

First in vitro studies point at a potential interaction between<br />

specific periodontal bacteria and keratinocytes that might promote carcinogenesis<br />

or boost the invasive potential of carcinoma cells.<br />

0484<br />

Long circulating thermosensitive liposomes for triggered intravascular<br />

drug release<br />

*L . Lindner1 , M . Hossmann1 , R . Schmidt1 , L . Li2 , G . van Rhoon3 , H . Eibl4 ,<br />

R . Issels5 , A .M .M . Eggermont6 , T . ten Hagen2 , G .A . Koning2 1Klinikum Großhadern, Medizinische Klinik III, München, Deutschland,<br />

2Erasmus Medical Center, Laboratory Experimental Surgical Oncology, Rotterdam,<br />

Niederlande, 3Erasmus Medical Center, Department Radiotherapy,<br />

Rotterdam, Niederlande, 4Max-Planck-Institute for Biophysical Chemistry,<br />

Göttingen, Deutschland, 5Helmholtz Zentrum Munich, Institute for Molecular<br />

Immunology, München, Deutschland, 6Institut de cancérologie Gustave<br />

Roussy, Villejuif, Frankreich<br />

Introduction. Thermosensitive liposomes (TSL) which become leaky<br />

after mild heating (40–41°C) offer the possibility of drug targeting for<br />

a variety of anticancer drugs. Synthetic 1,2-dipalmitoyl-sn-glycero-3phospho-glycero-glycerol<br />

(DPPG2) and 1,2-dipalmitoyl-sn-glycero-3phospho-glycero-glycero-glycerol<br />

(DPPG3) based TSL offer long circulation<br />

properties combined with fast drug release kinetics which are<br />

crucial prerequisites for intravascular drug release. Here, we compare<br />

DPPG2 and DPPG3 based DOX-TSL with low temperature sensitive liposomes<br />

(LTSL) based on lyso-PC with regard to PK, biodistribution<br />

and antitumor effectivity in vivo.<br />

Methods. TSL were prepared by the lipid film hydration and extrusion<br />

method. DOX was loaded actively with a pH gradient to preformed TSL.<br />

Tumor growth and tumor uptake studies with DOX-TSL were performed<br />

in BN 175 soft-tissue sarcoma extremity tumors of rats after 60 minutes<br />

of heating. Heat was applied by water bath or fiberoptic lamp.<br />

Results. Plasma peak levels of DOX were doubled for DPPG2- and<br />

DPPG3-based TSL as compared to LTSL (200 ng/µl vs. 100 ng/µl). This<br />

difference was even greater after 60 minutes with DOX 150 ng/µl vs.<br />

50 ng/µl, respectively. Within tumor tissue highest DOX concentrations<br />

were detected for animals treated with PG2 LT-DOX (24.3 ng/mg ±1.7)<br />

and PG3 LT-DOX (22.9 ng/mg ±0.2) compared to LTSL (9.93±1.6 ng/mg<br />

Dox) and free DOX (3.63±1.69 ng/mg). In tumor growth studies with<br />

DOX 2 mg/kg b.w. for DPPG3-TSL 4/6 complete tumor regressions and<br />

2/6 long lasting disease stabilizations were observed compared to 6/6<br />

progressions for standard DOX. For LTSL 1/6 delay in tumor growth<br />

was seen wheras 5/6 tumors progressed.<br />

Conclusion. Enabling high drug release rates at temperatures of 41°C and<br />

high stability at body temperature, DPPG2 and DPPG3 are ideal molecules<br />

to obtain optimally formulated TSL for intravascular drug release.


0506<br />

HLA-E contributes to an immune-inhibitory phenotype of glioblastoma<br />

stem-like cells<br />

*F . Wolpert 1 , P . Roth 1 , K . Lamszus 2 , G . Tabatabai 1 , M . Weller 1 , G . Eisele 1<br />

1University Hospital Zürich, Department of Neurology, Zurich, Schweiz,<br />

2University Hospital Hamburg-Eppendorf, Department of Neurosurgery,<br />

Hamburg, Deutschland<br />

<strong>Cancer</strong> stem cells are an attractive target for immunotherapeutic approaches<br />

to glioblastoma. However, an immune inhibitory phenotype<br />

of cells currently classified as glioma-initiating cells (GIC) might<br />

counteract recognition by immune effector cells. Here, we investigate<br />

the contribution of the non-classical MHC molecule HLA-E to the immunosuppressive<br />

phenotype of GIC. HLA-E is expressed in GIC lines<br />

and its expression is reduced upon differentiation of the GIC on serumcontaining<br />

conditions. HLA-E inhibits natural killer (NK) cell-mediated<br />

lysis of GIC since small-interfering RNA-mediated HLA-E gene<br />

silencing enhances the immunogenicity of GIC. Furthermore, the use<br />

of interferon-γ as a possible agent to boost an immune response against<br />

glioblastoma cells might be limited by the upregulation of HLA-E on<br />

the cell surface of GIC.<br />

Supportivmedizin/Palliativtherapie<br />

0012<br />

The breast care nurse (BCN ) – a key position in the breast centre<br />

team – the current situation<br />

*I .M . Rack1 , R . Saalmann1 , S . Kubo2 , S . Noeding1 , W . Bader3 1Klinikum Nordstadt, Frauenklinik, KRH, Kooperatives Brustzentrum,<br />

Hannover, Deutschland, 2Das Brustzentrum Niederrhein, Ev . Krankenhaus<br />

Bethesda, Brustzentrum, Mönchengladbach, Deutschland, 3Klinikum Region Hannover GmbH, Frauenklinik, Hannover, Deutschland<br />

In the last five years we can see how the career of BCNs, as nursing<br />

specialists for breast diseases, has developed. Following the example<br />

of English speaking countries, such as Great Britain, Ireland and<br />

Australia, this concept has expanded and is increasingly being put into<br />

practice. In many breast centres the BCN is so well established that one<br />

cannot imagine treating these patients without her active participation<br />

in the team. She has a number of responsibilities; she is the main contact<br />

person for the patients in the breast centre. From the time the diagnosis<br />

is made and all the way through to the end of the therapy the patient<br />

is accompanied and supported by the BCN. As far as the team is concerned,<br />

she is the coordinator and mediator in the breast centre as well<br />

as an important connection to the social network and the cooperation<br />

partners. At the <strong>German</strong> cancer convention in <strong>2012</strong> we would like to<br />

point out the significance of the BCN and her varied duties in breast<br />

centres. In the form of a lecture round we will talk about our experiences<br />

in the fields we work in, emphasising the positive effect our work has<br />

on everyone concerned with the treatment of breast cancer. We would<br />

like to show that the active involvement of BCNs results in a definite<br />

improvement in the quality of care. The good experience in the practice<br />

could prompt the inclusion of BCNs in the ONKOCERT certificate<br />

guidelines. A powerful team – the effect on the interdisciplinary communication<br />

and cooperation, and the quality of patient care – a doctor‘s<br />

viewpoint. May we have a little bit more? The support of patients who<br />

participate in national und international clinical drug trials – carving a<br />

niche! Staying power and gumption required – a BCN job description:<br />

introducing a structured concept of the work and importance of the<br />

BCN in the daily life of the breast centre.<br />

0041<br />

The role of the medical report for psychosocial support of cancer<br />

patients after discharge from the hospital<br />

*K . Book1 , P . Herschbach1 , C . Stuhr2 , M . Peuker2 , A . Heck2 , E . Brähler2 , K . Härtl3 1Klinikum rechts der Isar, Roman Herzog Krebszentrum, München,<br />

Deutschland, 2Universitätsklinikum Leipzig, Abteilung für Medizinische<br />

Psychologie und Medizinische Soziologie, Leipzig, Deutschland, 3Klinikum der Ludwig-Maximilians-Universität München, Klinik und Poliklinik für<br />

Frauenheilkunde und Geburtshilfe, München, Deutschland<br />

Background. Treatment of cancer involves different sectors within the<br />

health care system. An important role for communication between<br />

the sectors plays the medical report after discharge from the hospital.<br />

However, even though around 30% of cancer patients experience psychosocial<br />

distress, medical reports rarely contain information on distress<br />

which impedes continuous psychosocial support. The aim of this<br />

project was therefore to investigate whether the inclusion of a “psychooncological<br />

statement” within the medical report improves quality of<br />

treatment from the patient’s and doctor’s perspective.<br />

Methods. Patients with cancer were randomly allocated to the intervention<br />

or control group. Shortly before discharge, patients in the intervention<br />

group were assessed for their psychosocial distress with<br />

the psychooncological basic-documentation, a short semi-structured<br />

interview (t1). Results of the interview were included as a standardized<br />

psychooncological statement in the medical report. The control group<br />

received the medial report as usual. Few weeks after discharge (t2), patients<br />

in both groups were asked whether their doctor asked about their<br />

psychosocial distress and whether they were satisfied with treatment.<br />

Doctors in both groups received questions on whether the psychooncological<br />

statement (intervention group) or medical report (control group)<br />

was helpful for communication and further treatment and whether they<br />

asked the patient about psychosocial distress.<br />

Results. 1179 cancer patients and 596 doctors participated at t2. Doctors<br />

rated the psychooncological statement and medical report as helpful for<br />

communication and further treatment. Contrary to expectations, the<br />

psychooncological statement did not result in any differences between<br />

the intervention and control group concerning communication about<br />

psychosocial distress from the patient’s and doctor’s perspective or satisfaction<br />

with treatment. Overall, 40.8% of the patients and 74.3% of the<br />

doctors indicated that they discussed psychosocial distress. However,<br />

a correlation between satisfaction with treatment and communication<br />

about psychosocial distress was found; patients who were not asked about<br />

distress were less satisfied.<br />

Conclusion. Systematic inclusion of a psychooncological statement in<br />

the medical report based on a short interview is feasible in clinical practice.<br />

Further research is necessary to investigate the impact of the medical<br />

report and written information on doctor-patient communication.<br />

0043<br />

Do oncological patients in young adulthood have specific psychological<br />

motives behind the wish to have children?<br />

*K . Geue1 , D . Richter1 , R . Schmidt1 , E . Brähler1 1Universität Leipzig, Medizinische Psychologie und Medizinische Soziologie,<br />

Leipzig, Deutschland<br />

Objective. Many young people suffering from cancer had not been<br />

completed their family planning at the time of diagnosis. The issue of<br />

desiring to have children is gaining more and more importance considering<br />

the increasing long term survival and the possibilities of fertility<br />

preservation. Whereas during the acute phase of disease the desire to<br />

have children fades into the background, the fulfilling of own children<br />

comes to the fore after medical treatments and a good prognosis. The<br />

decision for or against a child is strongly determined by emotional<br />

motives. The aim of this study was to investigate whether and which<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

119


Abstracts<br />

specific psychological motives oncological patients have behind the<br />

wish to have children.<br />

Methods. After a literature research the psychological motives behind<br />

the wish to have children of cancer patients were collected postally with<br />

a single questionnaire. Also experiences of experts in the oncological,<br />

psychooncological and reproductive medical field were analysed. The<br />

questionnaires mainly consisted of open questions. The evaluation was<br />

made by categorisation of two staff members.<br />

Results. Professional experience averaged over all experts (n=9, six<br />

women) was thirteen years. The following anxiety-provoking motives<br />

related to the wish for children were mentioned by the experts: the<br />

wish for a child remains unfulfilled (n=7), negative health effects for<br />

the child (n=8), concerns about the patient’s health risk (n=6), worries<br />

about an unrealisable child care (n=4) and concerns about couple difficulties<br />

(n=3). Positive motivation towards childbirth implicates positive<br />

recovery motivation and future prospects (n=9), symbolic immortality<br />

(n=3), the improvement of the couple relationship (n=1) and an increased<br />

importance of family life (n=1). Mean age of patients was 34 years<br />

at diagnosis, 80% want children in the future at this time. Patients’ major<br />

concerns about having a child were negative health prospects of the<br />

child (n=7) and cancer recurrence (n=5). Patients associated only few<br />

reasons in favour of childbirth. The results correspond essentially to the<br />

childbearing motives reported in the literature.<br />

Conclusion. The study clearly illustrates the existence of cancer-specific<br />

childbearing motives whose awareness of and knowledge about is fundamental<br />

for a psychosocial care adjusted to the needs of young oncological<br />

patients.<br />

0088<br />

Belastungserleben von Patienten mit Brustkrebs unter der primär<br />

systemischen Therapie in Abhängigkeit ihres Risiko-Scores<br />

*J . Schwickerath1 , V . Tschuschke2 , G . Karadaglis1 , K . Evangelou1 1 2 St .Martinus-Hospital, Frauenklinik, Olpe, Griechenland, Universität Köln,<br />

Medizinische Psychologie, Köln, Deutschland<br />

Fragestellung. Über die psychische Belastung bei Brustkrebs betroffenen<br />

Patientinnen gibt es genügend wissenschaftliche Erkenntnisse.<br />

Ebenso ist bekannt, dass die primär systemische Therapie eine nicht zu<br />

unterschätzende Therapieoption darstellt. Bei diesem Behandlungsweg<br />

wird aber nicht nur von den Frauen sondern auch von den Behandlern<br />

oftmals die unnötige psychische Belastung über die Belassung des Tumors<br />

in situ als zusätzliches Konfliktfeld diskutiert. Wir haben über<br />

unsere Studie, die wir bei 53 Patientinnen durchgeführt haben, diese<br />

Fragestellung untersucht.<br />

Methode. 53 Frauen, bei denen aus tumorbiologischer Sicht die Indikation<br />

zur Primärsystemischen Therapie bestand, wurden in die Studie<br />

aufgenommen. Hierbei handelte es sich um Patientinnen, die in der<br />

Frauenklinik/Brustzentrum zur Abklärung eines suspekten Tumors in<br />

der senologischen Ambulanz vorgestellt und mittels minimal invasiver<br />

Biopsie histologisch abgeklärt wurden. Nach Mitteilung des histologischen<br />

Befundes wurde ihnen ein Termin zur weiterführenden Abklärung<br />

im Rahmen eines stationären Aufenthaltes gegeben. Am 1. Tag<br />

der stationären Betreuung erfolgte dann sowohl ein standardisiertes<br />

Interview als auch die Übergabe der psychoonkologischen Fragebögen<br />

– HADS, BSI, F-SozU K14, POMS. Zu diesem Zeitpunkt hatten die Patientinnen<br />

keine Kenntnis über das genaue Staging ihrer Krebserkrankung.<br />

Sie waren somit blind vor ihrer weiteren (möglichen) Prognose.<br />

Erst in der nachfolgenden Zeit erfolgten die notwendigen Staginguntersuchungen.<br />

Nach Abschluss der Chemotherapie wurden die Patientinnen<br />

zur endgültigen sanierenden operativen Therapie wiederaufgenommen.<br />

Am Tag der stationären Aufnahme erfolgte wiederum das<br />

nun 2. standardisierte Interview.<br />

Ergebnisse. 53 Patientinnen wurden nach ihrer Einwilligung in die<br />

Studie aufgenommen. Nach den St.-Gallen-Kriterien erfolgte eine Einteilung<br />

in ein mittleres oder hohes Risikoprofil. 49 Patientinnen konn-<br />

120 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

ten letztendlich ausgewertet werden. 14 waren der Gruppe mit einem<br />

High-Score und 35 dem mit dem mittleren Risiko zu geordnet worden.<br />

Entsprechend dem Ulmer-Coping-Manual wurde das Interview 1 und<br />

2 (prä- und post-primär-systemischer Chemotherapie) nach folgendem<br />

Score ausgewertet: Pair 1 – Resignation – Hoffungslosigkeit/2 – Ablenkung<br />

v.d. Krankheit/3 – kognitive Strukturierung/4 – soziale Kontakte/5<br />

– Compliance/6 – Fighting Spirit/7 – aktives Coping. In beiden<br />

Gruppen zeigten sich schon beim 1. Interview deutliche Unterschiede<br />

in der Einstellung zu der Diagnose, in der Einschätzung der Krankheit<br />

– auch ohne genaue Kenntnis über den eigentlichen (fortgeschrittenen)<br />

Zustand der Erkrankung – und letztendlich auch in der Beurteilung<br />

ihres sozialen Umfelds. Diese Ergebnisse wurden auch bei der Auswertung<br />

des 2. Interviews bestätigt. Wobei sich hier erstaunliche Unterschiede<br />

im Wandel z. B betreffend Fighting Spirit, kognitive Strukturierung<br />

Ablenkung von der Krankheit gezeigt haben.<br />

Schlussfolgerungen. Im Rahmen der Präsentation werden wir die Ergebnisse<br />

in Bezug auf die einzelnen Pairs sehr dezidiert darstellen und<br />

entsprechend ihrer Wertigkeit diskutieren.<br />

0100<br />

Feasibility and barriers of bicycle training with patients undergoing<br />

haematopoietic stem cell transplantation<br />

*M . Götte1 , A . Fissmer2 , T . Elter2 , W . Bloch1 , F .T . Baumann1 1<strong>German</strong> Sport University, Department of Molecular and Cellular Sport<br />

Medicine, Cologne, Deutschland, 2University of Cologne, Department I of<br />

Internal Medicine, Center for Integrated Oncology, Cologne, Deutschland<br />

Introduction. The haematopoietic stem cell transplantation (HSCT)<br />

is associated with severe physical and psychological side effects, such<br />

as muscle atrophy, loss of physical fitness and other consequences of<br />

immobility. Since some studies have shown positive effects of physical<br />

activity during the inpatient stay for HSCT [1], this study focused on<br />

examining the implementation of controlled endurance training and<br />

analyzing the inhibitory factors for bicycle training during HSCT.<br />

Methods. This study included 32 patients undergoing autologous or allogene<br />

HSCT over a period of 10 weeks. Endurance training was performed<br />

with a bicycle ergometer four times a week for 10–35 minutes.<br />

Participation in bicycle training and the reasons for non-participation<br />

were ascertained.<br />

Results. Percentage participation on average was 43.9 % and showed a<br />

significant positive trend over the period of the study (on average 0.43%<br />

per day, p=0.008). Implementation of bicycle training was rarely possible<br />

on the day of HSCT and days 4 to 6 after HSCT. The most frequent<br />

causes for non-participation were medical contraindications (70.1%), in<br />

particular acute GvHD, infections and thrombocytopaenia (


1 . Jarden et al (2009) . DeFor et al (2007), Baumann et al (2005)<br />

2 . Vgl . Midtgaard et al (2009), Maddocks et al (2009)<br />

3 . Chang et al (2008), DeFor et al (2007), Kim & Kim (2006), Mello et al (2003)<br />

0102<br />

Muscle strength in patients with lung cancer associated with<br />

lung-cancer-specific symptoms: results of a pilot study<br />

*B . Hoffmann1 , S . Hummler2 , M . Zoz3 , M . Thomas3 , C .M . Ulrich2 , G . Huber1 ,<br />

J . Wiskemann2 1Institut für Sport und Sportwissenschaft der Universität Heidelberg,<br />

Heidelberg, Deutschland, 2Nationales Zentrum für Tumorerkrankungen,<br />

Präventive Onkologie, Heidelberg, Deutschland, 3Thoraxklinik, Innere<br />

Medizin-Onkologie, Heidelberg, Deutschland<br />

Lung <strong>Cancer</strong> (LC) patients often experience physical and psychological<br />

impairment during the course of their disease. The aim of our pilot<br />

study was to analyse the difference of muscle strength values of LC patients<br />

compared to healthy people and to explore whether a correlation<br />

between muscle strength and lung cancer symptoms exists. 39 patients<br />

with lung cancer (56% NSCLC, 44% SCLC) with a median age of 62<br />

(range 44–83) from the Thoraxklinik in Heidelberg have been assessed<br />

for muscle strength by using Hand-Held Dynamometry. The following<br />

muscle groups were tested on both sides: elbow extension, elbow flexion,<br />

hip abduction, hip flexion, knee extension and knee flexion. Clinical<br />

symptoms were documented by using the FACT-L Lung cancer subscale<br />

(LCS). Almost all of the enrolled subjects (87%) were pretreated with<br />

chemotherapy. Reference data in healthy populations showed on average<br />

muscle strength values [measured in Newton (N)] of 364 N ±80 for<br />

knee extension, 238 N ±53 for hip abduction and 149 N ±39 for hip flexion<br />

(no data for knee flexion available). Values for lung cancer patients<br />

were considerably lower: 190 N ±73 (−47.62% ±19.38) for knee extension,<br />

130 N ±42 (−44.93% ±14.9) for hip abduction and 129 N ±47 (−13% ±24.17)<br />

for hip flexion. In the upper extremities the healthy reference values<br />

showed 209 N ±61 for elbow flexion and 144 N ±39 for elbow extension.<br />

Values for lung cancer patients were again clearly lower with 147 N ±53<br />

(−28.17% ±20.24) for elbow flexion and 125 N ±46 (−12.37% ±21.94) for<br />

elbow extension. Pearson correlation showed a positive correlation between<br />

LCS and muscle strength for men [elbow flexion r=0.44; p=0.045<br />

(dominant side), elbow extension r=0.51; p=0.018 (not dominant side),<br />

hip abduction r=0.65; p=0.001 (dominant side) and r=0.50; p=0.024 (not<br />

dominant side)]. Pearson correlation between LCS and muscle strength<br />

for women showed a negative but not statistically significant correlation.<br />

Our findings indicate that lung cancer patients experience muscular<br />

weakness especially in the lower extremities compared to the healthy<br />

reference population. Main differences compared to similar age<br />

groups were observed in knee extension, hip abduction and elbow flexion<br />

if analyzed by age. A positive correlation between LCS and muscle<br />

strength was observed in men, but surprisingly not among women. Further<br />

research in larger populations is needed to explore the differences<br />

in gender.<br />

0103<br />

Pilot study on fatigue levels in patients with lung cancer: correlations<br />

with muscle strength and 6-minute walk tests<br />

*S . Hummler1 , M . Zoz2 , M . Thomas2 , C .M . Ulrich1 , G . Huber3 , J . Wiskemann1,4 1Nationales Zentrum für Tumorerkrankungen, Präventive Onkologie,<br />

Heidelberg, Deutschland, 2Thoraxklinik, Innere Medizin-Onkologie, Heidelberg,<br />

Deutschland, 3Institut für Sport und Sportwissenschaft der Universität<br />

Heidelberg, Heidelberg, Deutschland, 4National Center for Tumor<br />

Diseases and University Clinic Heidelberg, Division of Medical Oncology,<br />

Heidelberg, Deutschland<br />

Lung cancer patients often suffer from fatigue due to their disease, side<br />

effects of treatment or the multidimensionality of burden. The aim of<br />

this pilot study was to explore associations between levels of fatigue and<br />

physical performance parameters. As part of this pilot study, a total of<br />

39 lung cancer patients were recruited in the Thoraxklinik Heidelberg<br />

(NSCLC 56%, SCLC 44%). Irrespective of current treatment and stage<br />

of disease patients were enrolled and assessed with the multidimensional<br />

fatigue inventory (MFI) questionnaire. Moreover, isometric muscle<br />

strength via hand-held dynamometry and 6-minute walk test (6MWT)<br />

was performed. The patient population comprised of 22 male patients<br />

and 17 female patients, with a median age of 62 (range 44–83). Initial<br />

Pearson correlation analyses revealed a significant correlation between<br />

the MFI subscore physical fatigue (PF) and 6 minute walk distance<br />

(6MWD) in male patients (r=−0.525, p=0.015), but no correlation in female<br />

patients. Also no correlations between isometric muscle strength<br />

and other fatigue variables were observed. Table 1 shows a summary of<br />

the mean values (± SD) for MFI, HHD and 6MWD for lung cancer pts.<br />

compared to the healthy reference population.<br />

These pilot data are in contrast to several published studies which reported<br />

significant correlations between fatigue levels and physical performance<br />

(e.g. for patients with breast cancer). Because of the low patient<br />

number we can only speculate, if this effect is an artifact of the sample<br />

size or reflects a difference in self-perception with respect to physical<br />

strength (and thus a difference in the severity of fatigue) in male and<br />

female lung cancer patients. Further studies with more patients are needed<br />

to discern possible gender-specific differences.<br />

Tab. 3 Mean values for MFI, HHD, 6MWD for LC pts . compared to the<br />

healthy reference population<br />

Lung cancer<br />

pts . (n=39)<br />

Healthy ref .<br />

population<br />

MFI<br />

(subscore PF)<br />

HHD<br />

(knee extension)<br />

6MWD<br />

(m)<br />

Male Female Male Female Male Female<br />

11,1<br />

(SD 4,6)<br />

9,1<br />

(SD 1,4)<br />

12,9<br />

(SD 4,0)<br />

9,7<br />

(SD 1,5)<br />

225<br />

(SD 64)<br />

419<br />

(SD 49)<br />

148<br />

(SD 60)<br />

297<br />

(SD 56)<br />

434<br />

(SD<br />

112)<br />

597<br />

(SD 97)<br />

411<br />

(SD 108)<br />

514<br />

(SD 68)<br />

0107<br />

Psychooncological interventions for gastrointestinal cancer<br />

patients<br />

*R . Hirth1 , E . van der Meer2 , M . Pross1 , B . Schicke3 1 2 DRK Kliniken <strong>Berlin</strong>, Klinik für Chirurgie, <strong>Berlin</strong>, Deutschland, Humboldt-<br />

Universität zu <strong>Berlin</strong>, Institut für Psychologie, <strong>Berlin</strong>, Deutschland, 3Tumor zentrum <strong>Berlin</strong> e .V ., <strong>Berlin</strong>, Deutschland<br />

Purpose. Gastrointestinal tumours are very common among male and<br />

female cancer patients. Diagnosis as well as subsequent therapy usually<br />

induces great emotional stress in these patients. They suffer from somatic<br />

(fatigue and exhaustion) and psychological (anxiety and tension)<br />

disorders. Emotion-regulation strategies are most important for these<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

121


Abstracts<br />

patients to overcome the impacts resulting from the disease: physical<br />

impairments, bad constitution, and fundamental changes to their whole<br />

life. This study compares the effectiveness of two different psychooncological<br />

interventions: relaxation therapy vs. cognitive structured<br />

short-term psychotherapy, applied during the medical after-treatment<br />

of gastrointestinal cancer patients.<br />

Hypotheses. (1) <strong>Cancer</strong> patients who receive psychooncological interventions<br />

suffer from significantly less anxiety compared to a control<br />

group without intervention. (2) A cognitive structured short-term psychotherapy<br />

reduces the anxiety of cancer patients significantly more<br />

than a relaxation therapy.<br />

Background. The cognitive psychological intervention is based on a processing<br />

model of emotion regulation developed by Hwang (2006). The<br />

model describes the development of emotion as controlled by sensation<br />

and behaviour in the context of subjective appraisal. In a first step emotions<br />

are processed in a way to support social desirability. This leads to<br />

reappraisal of emotional events (Gross et al., 1989). In a second step the<br />

remaining negative emotions are suppressed. This results in adaptive vs.<br />

maladaptive behaviour, influenced by the level of anxiety, the capacity<br />

to suppress unwanted thoughts, and the sense of self-efficacy.<br />

Methods. The longitudinal study is being conducted during the medical<br />

after-treatment (chemotherapy or irradiation). Sample: approx.<br />

n=280 patients with gastrointestinal tumours in the Surgical Clinic of<br />

the <strong>German</strong> Red Cross Hospitals <strong>Berlin</strong> Koepenick, randomized sample.<br />

Sessions: 14 different measuring points (t1 to t14), 2 inpatient sessions,<br />

12 ambulant sessions. Cognitive psychological intervention: different<br />

topics (e.g. diagnosis, fatigue, resources), based on the cognitive<br />

structured short-term psychotherapy. Relaxation therapy: progressive<br />

muscular relaxation following Jacobson, the patient is lying or sitting.<br />

Variables collected: physical (skin conductance, pulse rate), questionnaire<br />

data (PO-Bado, HADS, ERQ, SAM), general information (tumour<br />

location, tumour progression, number of medical consultations).<br />

Results. First results are expected to be available by the end of 2011.<br />

0110<br />

Psychological distress of cancer patients and their partners –<br />

comparison on pair level and influence of sex<br />

*H . Götze1 , J . Ernst1 , R . Schmidt1 , J . Dorst2 , G . Romer3 , E . Brähler1 1Universitätsklinikum Leipzig, Department für Psychische Gesundheit, Abteilung<br />

für Medizinische Psychologie und Medizinische Soziologie, Leipzig,<br />

Deutschland, 2Universitätsklinikum, Hämatologie, Leipzig, Deutschland,<br />

3Universitätsklinikum Hamburg-Eppendorf, Klinik für Kinder- und Jugendpsychiatrie,<br />

-psychotherapie und -psychosomatik, Hamburg, Deutschland<br />

Background and objectives. It is undisputed that cancer represents a major<br />

psychological distress for patients and their partners. However, to<br />

date there are few studies about the characteristic of anxiety and depression<br />

of cancer patients and their partners which include the correlation<br />

within the couple considering gender aspects. This study was part of the<br />

<strong>German</strong> multi-site research project Psychosocial Services for Children<br />

of Parents with <strong>Cancer</strong> supported by the <strong>German</strong> <strong>Cancer</strong> Aid (Deutsche<br />

Krebshilfe, grant #108303) and was accomplished of 2009–<strong>2012</strong> at five<br />

locations (Hamburg, <strong>Berlin</strong>, Heidelberg, Magdeburg and Leipzig). This<br />

investigation focused on the psychological distress of cancer patients<br />

with minor children on pair level and showed sex differences.<br />

Methods. In 113 cancer patients and their partners with minor children<br />

anxiety and depression after the acute treatment were explored using<br />

the Hospital Anxiety and Depression Scale (HADS). Correlation within<br />

the couples was computed depending on sex.<br />

Results. There was a great correlation between the psychological distress<br />

of the cancer patients with underage children and their partners (anxiety:<br />

r=0.323, p


0126<br />

Emotional memory in breast cancer survivors: Neuropsychological<br />

functioning and neuronal correlates<br />

*J . Wirkner 1 , C . Hamm 2 , A . Löw 1 , M . Weymar 3 , A .-M . Struck 1 , A .O . Hamm 1<br />

1 University of Greifswald, Department of Biological and Clinical Psychology,<br />

Greifswald, Deutschland, 2 University Medicine Greifswald, Department<br />

of Psychiatry and Psychotherapy, Greifswald, Deutschland, 3 University of<br />

Florida, NIMH Center for the Study of Emotion and Attention, Center for<br />

Psychophysiology, Gainesville, FL, USA<br />

Objective. Chemotherapy and endocrine therapy of breast cancer are<br />

accompanied by a wide spectrum of side effects, including a decline of<br />

cognitive functions that diminish quality of life and well-being. While<br />

such impairments are frequently described in self-reports, empirical<br />

findings are inconsistent and the underlying neuronal mechanisms are<br />

not fully understood. Here, we examine cognitive functioning of breast<br />

cancer survivors using neuropsychological testing as well as event-related<br />

potentials during an emotional long-term memory task.<br />

Methods. Female breast cancer survivors (n=12) after chemotherapy<br />

and endocrine therapy (tamoxifen, aromatase inhibitors) were compared<br />

with a sample of healthy matched controls. We assessed memory<br />

(WMS-R, VLMT) and attention (TAP). In addition, participants viewed<br />

a series of emotional and neutral pictures, followed by an unexpected<br />

recognition memory test one week later and high-density event-related<br />

potentials were recorded to examine underlying brain mechanisms<br />

of attention and emotional memory.<br />

Results. In neuropsychological testing, breast cancer survivors were<br />

characterized by subtle impairments and exhibited larger interindividual<br />

variance than controls. During encoding, emotional stimuli evoked<br />

larger late positive potentials signaling enhanced attention towards<br />

motivationally relevant materials in both groups. Brain potentials during<br />

recall showed enhanced positivity for correctly remembered old<br />

compared to correctly classified unseen items (‘old/new effect’) and<br />

were larger for emotional compared to neutral stimuli. This pattern of<br />

results was shown in breast cancer survivors as well as in matched controls.<br />

Conclusions. Cognitive changes following cancer therapy are subtle and<br />

objective measures of cognitive functions revealed no strong overall impairment<br />

in (emotional) memory and attention.<br />

0140<br />

Effects of a 15-month rehabilitative exercise program in prostate<br />

cancer patients following a radical prostatectomy – first results<br />

of the ProRehab Study<br />

*E .M . Zopf1 , M . Braun2 , S . Machtens3 , J . Zumbé4 , W . Bloch1 , F . Baumann1 1 Deutsche Sporthochschule Köln, Institut für Kreislaufforschung und Sportmedizin,<br />

Molekulare und Zelluläre Sportmedizin, Köln, Deutschland, 2 Heilig-Geist-Krankenhaus,<br />

Köln, Deutschland, 3 Marienkrankenhaus, Bergisch<br />

Gladbach, Deutschland, 4 Klinikum Leverkusen, Leverkusen, Deutschland<br />

Background. Over 60,120 new cases of prostate cancer (PCa) are reported<br />

annually in <strong>German</strong>y. Despite the increasing incidence and the common<br />

treatment-related side effects there is a lack of supportive measures<br />

for male patients and only few studies have evaluated physical activities<br />

in the after-care of PCa. The <strong>Cancer</strong> Society North Rhine-Westphalia<br />

(NRW), the <strong>German</strong> Sport University Cologne and the State Sport Association<br />

NRW set themselves the goal to establish rehabilitative sports<br />

groups particularly for PCa patients and to evaluate the effects of the<br />

offered exercise program.<br />

Methods. In cooperation with 4 acute clinics 107 PCa patients following<br />

a radical prostatectomy were recruited into this randomized-controlled<br />

and patient-preference trial. Within a 15-month intervention patients<br />

exercise in a pre-established rehabilitative sports group once a week for<br />

60 minutes. Additionally patients are asked to exercise a second time<br />

independently. Patients in the control group do not participate in the<br />

intervention. The outcomes of the study include: aerobic endurance performance,<br />

PA levels, quality of life, incontinence, erectile dysfunction<br />

and specific blood values.<br />

Results. The study started off in October 2007 and will be completed by<br />

the end of the year 2011. First intermediate results concerning the effects<br />

of the offered exercise program show improvements in PA levels and<br />

quality of life and no significant changes in PSA or testosterone levels.<br />

Discussion. The ProRehab study is presumably the first randomizedcontrolled<br />

trial with such a long exercise intervention and is therefore<br />

likely to promote long-term lifestyle changes in PCa patients. By combining<br />

science, practice and public relations an interdisciplinary and<br />

multi-centric project was initiated. The findings of our study and future<br />

investigations will help optimize exercise recommendations for PCA<br />

patients. Further and more detailed results will be available at the time<br />

of the meeting.<br />

0153<br />

Distress, acceptance and knowledge of psychooncological facilities<br />

by patients with colorectal cancer – results of a representative<br />

study in Bavaria<br />

*A . Beraldi1 , 2 , E . Kukk2 , 3 , G . Schubert-Fritschle4 , J . Engel4 , P . Herschbach3 , 5 ,<br />

P . Heußner1 1 LMU, Psychoonkologie Med III, München, Deutschland, 2 Tumorzentrum,<br />

München, Deutschland, 3 Technische Universität, Sektion Psychosoziale<br />

Onkologie, München, Deutschland, 4 Tumorregister, München, Deutschland,<br />

5 Roman-Herzog Krebszentrum, München, Deutschland<br />

Background. Psychooncological studies about distress usually take place<br />

during primary care and lack of representativeness. Little is known about<br />

distress and needs of patients when back in their familiar environment.<br />

In our study this absence of representativeness could be avoided<br />

by the recruitment procedure and by the cooperation with the Tumour<br />

Register of Munich (TRM). The following questions were investigated:<br />

1) What is the prevalence of distress, depression and anxiety in patients<br />

with colorectal cancer? 2) Which are predictive factors of distress, depression<br />

an anxiety? 3) How is the acceptance and knowledge of psychooncological<br />

facilities in the neighborhood? 4) Which are predictive<br />

factors of acceptance and knowledge of psychooncological facilities? 5)<br />

Which offers of psychooncological treatment can be found in the region?<br />

Method. Patients with a colorectal tumour were recruited by their hospital<br />

surgeon and received 3 months after inclusion a questionnaire<br />

concerning socio-demographic and medical information, acceptance<br />

and knowledge about psychooncological facilities as well as psychosocial<br />

distress, depression and anxiety. We adjusted our sample for age and<br />

sex according to the data of the TRM, so that the resulting sample was<br />

representative for the catchment area of the TRM. At the same time we<br />

carried out an internet research recording all psychooncological facilities<br />

in the catchment area of the TRM.<br />

Results. N=534 patients. Mean age was 68.9 years (SD=11.33). 27.6% of<br />

the patients presented metastases. 50.8% received chemotherapy. 26% of<br />

the sample presented distress. 12.4% of the patients had elevated anxiety<br />

and 14.8% elevated depression scores. 52% of the sample did not know<br />

any psychosocial support facility. Only 1.2% of the patients made use<br />

of support. 55.8% answered that they would accept or probably/perhaps<br />

accept support. Predicitive factors for psycho-social distress were not<br />

talking to the general practitioner, psychotherapy in the past and chemotherapy.<br />

Predictive factors for acceptance were psychotherapy in the<br />

past and distress. In our sample patients from rural regions were better<br />

informed than patients from the city. The outpatient care situation<br />

showed that 10% of the patients did not have a psycho-social support<br />

in the vicinity (20 km) of home. Outpatient psychooncological support<br />

and resident haemato-oncologists showed the strongest undersupply in<br />

rural regions.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

123


Abstracts<br />

0154<br />

Perception and attitudes of professionals regarding age and<br />

need oriented education of children of parents with cancer<br />

*A . Beraldi1 , M . Köllner1 , S . Tari2 , W . Hiddemann1 , P . Heußner1 1 2 LMU, Psychoonkologie Med III, München, Deutschland, lebensmut e .V .,<br />

München, Deutschland<br />

The cancer disease of a parent affects the whole family and may present<br />

an enormous distress factor. Parents are often uncertain, if and how to<br />

talk about the disease to their children. 56% of the parents do not talk<br />

about the imminent death of the other parent although the correlation<br />

between deficient communication and the manifestation of mental disorders<br />

has been demonstrated (Siegel et al., 1996). The contribution of<br />

the family counseling funded by lebensmut e.V. at the university hospital<br />

Großhadern in Munich consists of the parents‘ support to prevent<br />

their children from developing mental disorders by education, consultation<br />

and therapeutic interventions. Another relevant contribution<br />

consists in sensibilizing all involved professionals (e. g. doctors, nurses,<br />

psychotherapists, teachers) in order to offer prevention or to recognize<br />

needs in time. Appropriate support may range from the correct information<br />

to specific questions (e.g. „May I tell my daughter that I have<br />

breast cancer? May I bring my children to the ward? Will they bear it?“)<br />

to therapy sessions for the children. The better all involved professionals<br />

are informed about how to deal with children of parents with cancer the<br />

better parents can be supported. The clinical experience however shows<br />

that professionals too, are often uncertain and ambivalent regarding the<br />

children‘s involvement in the disease management. The objective of present<br />

explorative study is to assess these observations. We aim to explore<br />

with the help of a questionnaire the perception, attitudes and cognitions<br />

of the different staff members (doctors, nurses, psychotherapists, pastoral<br />

care, social workers) regarding the education of children of cancer<br />

patients. Preliminary results will be presented. Depending on the study<br />

results, information and education programmes for professionals shall<br />

be developed and provided on the long run.<br />

0158<br />

Evaluation of a new course on teaching of erectile dysfunction<br />

following pelvic surgery in men with prostate or bladder cancer<br />

in undergraduate medical education<br />

V . Müller-Mattheis1 , C . Schulz1 , R . Schmelzer1 , A . Mortsiefer1 , T . Rotthoff1 ,<br />

P . Albers1 , A . Karger1 1 Heinrich-Heine-Universität Düsseldorf, Urologie, Düsseldorf, Deutschland<br />

Introduction. Talking to patients who suffer from sexual problems is<br />

a relevant but under-represented issue in medical education. Besides<br />

knowledge for diagnosis and treatment of sexual disorders also specific<br />

communication skills (e.g. in history taking) are mandatory as much<br />

as an accepting mindset for talking about tabooed themes. As a part of<br />

the development and implementation of a longitudinal communication<br />

curriculum CoMeD, an interdisciplinary training course concentrating<br />

on erectile dysfunction was introduced in 2010 by the Departments of<br />

Urology and Psychosomatic Medicine & Psychotherapy. Training concept<br />

(a) and student’s evaluation (b) are presented.<br />

Methods. (a) The multi-stage development process included needs-assessment<br />

to determine student’s needs and interests, defining learning<br />

objectives and teaching methods. We produced instructional material<br />

and provided special training sessions for course teachers and simulated<br />

patients. (b) Participating students evaluated the training course in<br />

reference to subjective learning curve, practical relevance, and a global<br />

quality appraisal each by 5-point LIKERT scaling.<br />

Results. (a) We could develop a new CoMeD training course with following<br />

contents of teaching: urological knowledge especially of surgical<br />

pelvic anatomy and postoperative problems in patients having undergone<br />

radical cystectomy/prostatectomy, interview with simulated patients<br />

124 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

(sexual history taking), interview with real prostate cancer patients suffering<br />

from erectile dysfunction, feedback and discussion. (b) Student’s<br />

mean evaluation was good (overall results of three term cohorts, n=173).<br />

Conclusion. Introduction of an interdisciplinary training course providing<br />

explicit urological knowledge as well as communication skills<br />

could successfully be accomplished and was much appreciated by our<br />

students. The authors see this approach as highly valuable for further<br />

medical curriculum development and assimilating specific psychooncological<br />

skills.<br />

0161<br />

Quality of life in long-term survivors of breast, colorectal, and<br />

prostate cancer – First results from the CAESAR study<br />

*V . Arndt1 , L . Koch1 , H . Bertram2 , A . Eberle3 , S . Schmid-Höpfner4 , C . Stegmaier5<br />

, A . Waldmann6 , S . Zeissig7 , H . Brenner1 1<strong>German</strong> <strong>Cancer</strong> Research Center (dkfz), Clinical Epidemiology and Aging<br />

Research (C070 ), Heidelberg, Deutschland, 2<strong>Cancer</strong> Registry of North Rhine-<br />

Westphalia, (Münster Region), Münster, Deutschland, 3Bremen <strong>Cancer</strong><br />

Registy, Bremen, Deutschland, 4Hamburg <strong>Cancer</strong> Registry, Hamburg,<br />

Deutschland, 5Saarland <strong>Cancer</strong> Registry, Saarbrücken, Deutschland,<br />

6University Hospital Schleswig-Holstein, Institute of Clinical Epidemiology,<br />

Lübeck, Deutschland, 7<strong>Cancer</strong> Registry Rhineland-Palatinate, Mainz,<br />

Deutschland<br />

Background. The CAESAR-study (<strong>Cancer</strong> Survivorship – a multi-regional<br />

population-based study) was started in October 2008 to study<br />

important quality of life aspects in long-term survivors (5+ years) after<br />

diagnosis of breast, colorectal or prostate cancer.<br />

Methods. The study is based on a joint analysis of several populationbased<br />

samples of cancer survivors from various cancer registries across<br />

<strong>German</strong>y (Bremen, Hamburg, Münster/North Rhine-Westphalia,<br />

Rhineland-Palatinate, Saarland, Schleswig-Holstein). Potential study<br />

participants were identified by the participating cancer registries and<br />

were either contacted directly by the pertinent cancer registry or the<br />

treating physician, depending on the federal legislation. The questionnaire<br />

included internationally validated standardized instruments<br />

(e.g. EORTC Quality of Life Core Questionnaire, Fatigue Assessment<br />

Questionnaire, Geriatric Depression Scale, Benefit Finding Scale, Post<br />

Traumatic Growth Inventory). It was planned that a total of approximately<br />

6700–7000 survivors would be eligible and participate.<br />

Results. The recruitment started in August 2009 and lasted until April<br />

2011. The actual number of over 7100 cancer survivors who filled out<br />

the questionnaire exceeded the anticipated number. Depending on the<br />

region specific recruitment schemes up to 88% of all contacted survivors<br />

completed the questionnaire. First results from the Saarland VERDI cohort,<br />

a cohort which has been repeatedly contacted over the first ten years<br />

after diagnosis, indicate that long-term cancer survivors experience<br />

more restrictions in role, emotional, cognitive, and social functioning<br />

than controls from the general population. Further in-depth analysis as<br />

well as results from the other regions will be presented.<br />

Conclusions. Our preliminary results indicate that quality of life is a topic<br />

of high relevance for long-term survivors. Furthermore, detriments<br />

in psychosocial functioning persist over years even in cancer survivors<br />

considered to be cured.


0171<br />

Treatment decision-making at the end of life in oncology: results<br />

of a qualitative study on perceptions and ethical views of physicians<br />

in <strong>German</strong>y and England<br />

*J . Schildmann1 , J . Tan1 , J . Vollmann2 1Ruhr-Universität Bochum, Institut für Medizinische Ethik und Geschichte<br />

der Medizin, NRW-Nachwuchsforschergruppe „Medizinethik am Lebensende:<br />

Norm und Empirie“, Bochum, UK, 2Ruhr-Universität Bochum, Institut<br />

für Medizinische Ethik und Geschichte der Medizin, Bochum, Deutschland<br />

Resarch question. Limitation of treatment is part of the care for patients<br />

with incurable cancer. We explored the perception and ethical views of<br />

oncologists working in <strong>German</strong>y and the United Kingdom regarding<br />

these decisions.<br />

Methods. Qualitative semi-structured interviews with physicians working<br />

in oncology in <strong>German</strong>y and England were carried out. Interviews<br />

were audiotaped and transcribed. Transcripts were coded by identifying<br />

major themes of the interviews using constant comparison, in order<br />

to examine similarities and differences between oncologists across the<br />

whole sample.<br />

Results. 17 (<strong>German</strong>y) and 12 (United Kingdom) research interviews<br />

were analysed. Interviews varied in length between 27 and 73 minutes.<br />

Respondents from both countries named a variety of treatment modalities<br />

which may be limited in the context of care for patients with<br />

incurable cancer. After standard clinical criteria for decision-making<br />

(e.g. performance status), perception of the life circumstances of the patient<br />

(e.g. being a mother of young children) as well as highly individual<br />

aspects of the physician-patient relationship (e.g. parallels between the<br />

biographies of physicians and patients biographies) were reported to<br />

most influence these treatment decisions. Discussions with colleagues<br />

and the multidisciplinary team were emphasised as correctives to make<br />

the decisions less subjective; these were emphasised as strategies by oncologists<br />

working in the United Kingdom. Physicians in both countries<br />

reported that non-harming treatment was given to patients who did not<br />

accept the initial recommendation of oncologists to stop treatment. The<br />

duty not to harm was cited as the rationale to limit treatment even if<br />

there was a wish on side of the patients to receive further interventions.<br />

Conclusions. This study indicates that decisions about limitation of medical<br />

treatment are based on numerous medical and non-medical factors.<br />

Potential strategies for dealing with clinical and ethical challenges<br />

in end stage cancer will be discussed.<br />

0184<br />

Implementation of a multidisciplinary psychosocial screening<br />

tool with touch-screen technology in a <strong>German</strong> Comprehensive<br />

<strong>Cancer</strong> Center<br />

*A . Brechtel1 , J . Walther2 , K . Bikowski2 , D . Jäger2 , W . Herzog3 1Nationales Centrum für Tumorerkrankungen, Psychoonkologische Ambulanz,<br />

Heidelberg, Deutschland, 2Nationales Centrum für Tumorerkrankungen,<br />

Heidelberg, Deutschland, 3Klinik für Allgemeine Innere Medizin und<br />

Psychosomatik, Heidelberg, Deutschland<br />

Objective. The purpose of our presentation is to describe the implementation<br />

of a multidisciplinary psychosocial screening in a Comprehensive<br />

<strong>Cancer</strong> Center (CCC) setting using touch-screen technology illustrating<br />

barriers, necessary frameworks and setting-specific adaptations.<br />

Background. Psychosocial research emphasizes the need for early identification<br />

of distress, and there is an increasing empirical support for<br />

the importance of systematic psychosocial screening of cancer patients.<br />

However, the practical issues of implementing psychosocial screening<br />

as an integral part of a comprehensive and patient-oriented cancer treatment<br />

in a CCC have been rarely addressed or investigated so far. Besides<br />

various paper-based screening tools, there is a growing interest in<br />

the use of touch-screen technology. Experiences with this technology<br />

and respective advantages have been described in the international literature.<br />

Methods. We implemented a touch-screen screening instrument addressing<br />

not only psychosocial distress, but also nutritional aspects<br />

as well as patients’ interest in the offer of various counselling services.<br />

Revisions and necessary adaptations are made by a multidisciplinary<br />

working group.<br />

Results. We found various barriers to implement this technology as an<br />

integral part of the cancer treatment. A special challenge seemed to be<br />

to adopt the screening process to the existing or newly established clinical<br />

units of cancer treatment in our CCC. Each clinical unit has its own<br />

culture and needs to be addressed respectively. One major barrier was<br />

the attitude of involved personnel who felt that the screening would be<br />

burdensome for patients.<br />

Conclusions. The implementation of such a screening tool and procedure<br />

requires a lot of preparatory work and the adaptation to settingspecific<br />

frameworks. Besides specific technical requirements the multidisciplinary<br />

communication and exchange as well as the training of<br />

the involved personnel present important tasks. The acceptance from<br />

all involved disciplines represents a major prerequisite for the successful<br />

implementation and integration in routine care.<br />

0186<br />

Inwieweit profitieren Brustkrebs betroffene Frauen besonders<br />

bezüglich der Langzeitwirkung von psychoedukativen Seminaren?<br />

– Ergebnisse einer Nachbefragung 6 Jahre später<br />

*J . Schwickerath1 , E . Reuter1,2 1 2 St . Martinus-Hospital, Frauenklinik, Olpe, Deutschland, Psychonkologische<br />

Schwerpunktpraxis, Olpe, Deutschland<br />

Nach der Diagnose Brustkrebs entwickeln die betroffenen Frauen<br />

unterschiedliche Strategien, um mit der Erkrankung und ihren Folgen<br />

wieder ins Leben zurückzufinden. Um den Frauen in dieser schweren<br />

Zeit auf ihrem Weg zu helfen, bieten wir seit 2001 sog. psychoedukative<br />

Patientenseminare an. Ziel dieser Seminare ist es auch, die Patientenkompetenz<br />

der Betroffenen zu steigern. Wir verstehen unter diesem Begriff,<br />

dass die Frauen in hohem Maße wünschen und letztendlich auch<br />

in der Lage sind, bei der Behandlung ihrer Erkrankung gleichberechtigt<br />

und eigenverantwortlich mitzuarbeiten. Dafür sind Entwicklung von<br />

Sachverstand und Wissen erforderlich, sowie der Mut und das Selbstbewusstsein,<br />

mit den Behandlern auf gleicher Augenhöhe zu sprechen.<br />

Über die wissenschaftliche Evaluation unserer bisherigen 14 Seminare<br />

(n:195) haben wir nachweisen können, dass alle Teilnehmerinnen<br />

betreffs ihres Kohärenzgefühls und ihres Coping-Verhaltens in der<br />

Post-Befragung eine Steigerung angegeben haben. Uns hatte nun interessiert,<br />

wie weit diese positive Lebensveränderung trotz der Diagnose<br />

angehalten hat, respektive ob sich diesbezüglich Jahre später eine Änderung<br />

ergeben hat. Wir haben die Seminarteilnehmerinnen aus den Jahren<br />

2001 bis 2005 betreffs unserer Studie angeschrieben. 95 Frauen, mit<br />

einer durchschnittlichen Zeitspanne zwischen Patientenseminarende<br />

und Beginn der Befragung von 72 Monaten, konnten wir letztendlich<br />

in die Studie aufnehmen. Die Teilnehmerinnen haben auch Jahre später<br />

die durch die Seminare gewonnene Steigerung ihrer Lebensqualität<br />

über die emotionale Stabilisierung, Verbesserung der Selbstfürsorge<br />

und der Compliance beibehalten und – nach ihren Aussagen – noch<br />

steigern können. Die Ergebnisse unserer Studie zeigen, dass es sich auch<br />

bezüglich der Langzeitwirkung lohnt, den betroffenen Frauen solche<br />

Seminare anzubieten.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

125


Abstracts<br />

0190<br />

Exercise and cancer – how do physically active and inactive cancer<br />

patients differ in social cognitive variables from the Theory of<br />

Planned Behavior?<br />

*N . Ungar1,2 , M . Sieverding1 , C . Ulrich2 , J . Wiskemann2,3 1University of Heidelberg, Psychological Institute, Heidelberg, Deutschland,<br />

2National Center for Tumor Diseases, Preventive Oncology, <strong>German</strong> <strong>Cancer</strong><br />

Research Center, Heidelberg, Deutschland, 3National Center for Tumor<br />

Diseases, University Clinic, Medical Oncology, Heidelberg, Deutschland<br />

Objectives. The current recommendation for cancer patients is to exercise<br />

moderately 150 minutes a week. Despite many positive effects of<br />

physical activity, many cancer patients are quite physically inactive. The<br />

Theory of Planned Behavior by Ajzen which is based on social cognitive<br />

variables can be helpful to explain physical activity. Do physically active<br />

and inactive patients differ in these social cognitive variables? That<br />

means, do they have a different intention, attitude, perceived behavioral<br />

control and subjective norm towards exercising? This pilot-study should<br />

furthermore identify which of these variables can predict the intention<br />

to be physically active.<br />

Methods. 63 patients (m=39, w=24; mean=60 years) of different cancer<br />

entities and different outpatient therapy regimes (50% chemotherapy at<br />

present) were recruited in the National Center for Tumor Diseases in<br />

Heidelberg. They had to fill out a questionnaire assessing their physical<br />

activity, variables of the Theory of Planned Behavior and socio-demographic<br />

variables.<br />

Results. 27 patients of the sample were classified as physically inactive<br />

(


0209<br />

Psychooncological support needs assessment in hematology –<br />

implementation, acceptance and results<br />

*A . Koch1 , M . Herold1 , H . Göbel2 1 4 HELIOS Klinikum Erfurt, . Medizinische Klinik, Hämatologie und internistische<br />

Onkologie, Hämostaseologie, Erfurt, Deutschland, 2HELIOS Klinikum<br />

Erfurt, Tumorzentrum, Erfurt, Deutschland<br />

Objectives. The psychosocial support of cancer patients with initial diagnosis<br />

has improved due to the certification of numerous organ tumor<br />

centers. However, it shows that the full supply by certified psychooncologists<br />

is currently not yet possible due to economic restrictions. A<br />

sustainable model needs to be implemented into hospital workflow that<br />

allows access to psychooncological support offers and is economical as<br />

well.<br />

Methods. Assignments of the patients to psychological support cannot<br />

happen solely by physicians or nursing staff, because they often do not<br />

assess the actual need properly. Realization of evidence based screening<br />

diagnostics to assess the need has proven to be reliable and valid in several<br />

studies. However, psychooncological screening methods in the hematology<br />

(diagnoses: ICD-10 C81-96) are quite new and are controversially<br />

discussed within other organ tumor centers. Aim of this study is<br />

to analyze the approach of the Hornheider Screening Instrument (HSI)<br />

in clinical routine and to evaluate the acceptance of the questionnaire.<br />

Results. The following results and conclusions are preliminary. The oneyear<br />

clinical outcomes will be presented at the congress. Within the first<br />

6 months period of survey, 179 patients with hematooncologic diagnosis<br />

were treated. The return ratio of the HSI questionnaire was 65%. For<br />

32% of the respondents, psychological treatment identified to be needed.<br />

Primarily, patients reported to be burdened physically (54%) and mentally<br />

(43%). 36% of the respondents considered their family especially<br />

burdened. 19% of the patients described information deficits concerning<br />

their tumor disease. 15% expressed the desire for psychological support<br />

and 3% were already in outpatient psychotherapy.<br />

Conclusions. The screening method used proves to be practical. The<br />

question about the best time to assess the patients’ burdens and wishes<br />

for psychooncological support remains. Furthermore, it could be<br />

observed that the mental strain and need for support increases under<br />

chemotherapy or occurrence of relapses. Continuous follow up surveys<br />

might be necessary. A consultation service cannot satisfy the needs.<br />

Psychooncological liaison services, which are integrated into the stationary<br />

routines, are useful and suitable.<br />

0263<br />

Effects of aquatic exercise on quality of life and activities of daily<br />

living in breast cancer patients with secondary arm lymphedema<br />

*B . Roling1 , *D . Hermann1 , F .T . Baumann1 1Deutsche Sporthochschule, Köln, Deutschland<br />

Introduction. Secondary arm lymphedema is one of the most feared and<br />

multidimensional complication following breast cancer disease and treatment<br />

(Micke et al. 2000). Patients suffer from progressive and chronic<br />

dysfunctions particularly of the upper extremity, resulting in physical,<br />

psychological and social impairments which may affect quality of life<br />

and activities of daily living (Hull 2000, Isermann 2006). The prevailing<br />

treatment of lymphedema is currently the complex physical therapy<br />

which can improve the physical condition. However, psychosocial<br />

impairments are not considered sufficiently. A holistic therapy is needed.<br />

Due to the specific hydrodynamic properties, aquatic exercise may<br />

present such a therapy approach. Although aquatic exercise has already<br />

been implemented in the oncological rehabilitation, it has not attracted<br />

much interest in research (Baumann & Schüle 2008). In order to reduce<br />

this gap between science and practice, this study investigated the effects<br />

of a semiweekly aquatic therapy over twelve weeks on quality of life and<br />

activities of daily living in breast cancer patients with secondary arm<br />

lymphedema.<br />

Methods. Nine women participated in a semiweekly aquatic therapy<br />

over twelve weeks. Findings were assessed via four questionnaires<br />

(FLQA-I, Freiburger Fragebogen zur körperlichen Aktivität, EORTC<br />

QLQ-C30, EORTC QLQ-BR23) and measurement of arm circumference<br />

at five times (baseline, after six and twelve weeks of the intervention,<br />

three- and six-months follow-up).<br />

Results. Aquatic exercise had immediate positive, partly statistically significant<br />

effects on quality of life and lymphedema symptoms, especially<br />

arm symptoms (baseline-after 12 weeks: p=0.022). But no long-term effects<br />

were noted. Conversely, activities of daily living decreased during<br />

the intervention and showed an increase in the follow-ups.<br />

Discussion and conclusion. This study provides first evidence of multidimensional<br />

effects of aquatic exercise not only on activities of daily<br />

living and quality of life in breast cancer patients, but also lymphedema<br />

condition itself. However, permanent positive effects can only be achieved<br />

by long-term and regular participation. In related studies of Tidhar<br />

& Katz-Leurer (2009), Hayes et al. (2009) and Box et al. (2004) similar<br />

results are shown. Further studies have to be conducted in order to specify<br />

the exact effects of aquatic therapy on lymphedema and to define<br />

precise exercise recommendations for breast cancer patients.<br />

0264<br />

The influence of a long hike on psychological parameters of<br />

patients after breast care treatment<br />

*S . Metzner1 , I . Germ1 , L . Thiele1 , S . Gräfingholt1 , W . Bloch1 , F . Baumann1 1Deutsche Sporthochschule Köln, Institut für Kreislaufforschung und<br />

Sportmedizin, Abteilung für molekulare und zelluläre Sportmedizin, Köln,<br />

Deutschland<br />

Years after the diagnosis, patients suffer of psychiatric problems that,<br />

to them, seem a lot more serious than their physical deficits. Of meaning<br />

are depressions, anxiety and attention disorders (Burgess et al.<br />

2005, Heckl & Weis 2006). Long hikes (810 km, 10,000 m high, 22 km/<br />

day, 6 weeks) along the French Camino de Santiago are supposed to<br />

improve this psychological condition (Brämer 2001). Woman diagnosed<br />

with breast cancer (n=22, age: 53±7 years, post diagnosis 1,8±1 year,<br />

BMI: 23,5±3,58 kg/m2), whose acute treatment had been completed, were<br />

observed in relation to quality of life (EORTC QLQ C-30 and BR-23)<br />

attention/awareness (MAAS) and anxiety and depression (HADS). Test<br />

subjects were free to choose their own speed and resting periods. Questionnaires<br />

were completed at the beginning, after a 2-month training<br />

interval, and after the 2nd, 4th and 6th week of the hike. For the evaluation<br />

of long term effects, 6 and 12 months after the intervention all<br />

questionnaires were filled in again. The results show significant improvement<br />

in nearly every area, for example: global health status (T1=67.4,<br />

T7=77.1, p


Abstracts<br />

1 . Brämer B (2001) Wandern neu entdeckt . Warum es sich lohnt wieder mehr zu<br />

Fuß zu reisen (elektronische Version) . Burg & Steigen 3:22–28<br />

2 . Burgess C, Cornelius V, Love S, Graham J, Richards M, Ramirez A (2005) Depression<br />

and anxiety in women with early breast cancer: five year observational<br />

cohort study . BMJ (Clinical research ed .) 330:702–705<br />

3 . Gebhard U (1993) Erfahrung von Natur und seelische Gesundheit . In: Seel H-J,<br />

Sichler R, Fischerlehner B, Mensch und Natur . Psychologische Aspekte einer<br />

problematischen Beziehung . Opladen, S . 127–147<br />

4 . Heckl U, Weis J (2006) Medizinpsychologische Aspekte der Patientin mit<br />

Mammakarzinom . In: Kreienberg R, Jonat W, Volm T, Möbus V, Alt D (Hrsg .),<br />

Management des Mammakarzinoms . Springer Medizin Verlag, Heidelberg,<br />

S . 469–487<br />

5 . McNeely, ML, Campbell, KL, Rowe, BH, Klassen, TP, Mackey, JR & Courneya, KS<br />

(2006) Effects of exercise on breast cancer patients and survivors: a systematic<br />

review and meta-analysis . Canadian Medical Association Journal 175(1):34–41<br />

0293<br />

Attitudes towards euthanasia. The impact of the experience of<br />

supporting a dying relative<br />

*N . Köhler1 , H . Götze1 , L . Gansera1 , S . Berger1 , R .-D . Kortmann2 , E . Brähler1 1Universitätsklinikum Leipzig, Abteilung f . Medizinische Psychologie und<br />

Medizinische Soziologie, Leipzig, Deutschland, 2Universitätsklinikum Leipzig,<br />

Klinik für Strahlentherapie und Radioonkologie, Leipzig, Deutschland<br />

Introduction. It is a point of debate whether euthanasia should be part<br />

of medical practice. The current study investigates the attitudes of bereaved<br />

family members who had experienced end-of-life care towards<br />

euthanasia. In this abstract, we present preliminary results. The study<br />

was sponsored by the <strong>German</strong> <strong>Cancer</strong> Aid (Deutsche Krebshilfe e.V.).<br />

Methods. We have conducted an online survey with people who had lost<br />

a close relative to cancer during the last 12 months. Participants were<br />

asked whether indirect, passive, active euthanasia and assisted suicide<br />

should be part of medical practice. The results of this survey were compared<br />

with those of a survey of the general <strong>German</strong> population from<br />

2001 (Schröder 2003). The participants of the online survey were mostly<br />

female and of younger age than the general population, the two groups<br />

were matched according to age and sex.<br />

Results. In general, most bereaved family members approved the idea<br />

of indirect and passive euthanasia being part of medical practice. Bereaved<br />

family members of cancer patients (approx. 90%) significantly<br />

more often wanted indirect and passive euthanasia to be part of medical<br />

practice than the general population (approx. 66%). Regarding active<br />

euthanasia and assisted suicide, the differences between both groups<br />

were much smaller. 70% and 67% of the bereaved family members vs.<br />

55% and 60% of the general population wanted those forms of euthanasia<br />

to be part of medical practice.<br />

Conclusions. On possible explanation for the stronger support of euthanasia<br />

by bereaved family members may be the experience of supporting<br />

a dying relative. Since the survey of the general <strong>German</strong> population was<br />

conducted about ten years ago, it seems also possible that the acceptance<br />

of euthanasia may have increased since then in the general population.<br />

0298<br />

National survey of physicians’ communicative competence training<br />

in medical education<br />

*C . Kloepfer1 , A . Spieser1 , J . Weis1 1Klinik für Tumorbiologie, Psychosoziale Abteilung, Freiburg, Deutschland<br />

Purpose. Communication between physicians and patients is an important<br />

component in medical services. Compelling evidence from clinical<br />

trials indicates that good communication skills of health professionals<br />

show positive effects on physicians (burn-out prophylaxis, increased job<br />

satisfaction etc.) as well as on patients (particularly with regard to can-<br />

128 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

cer patients increased treatment adherence, psychological functioning<br />

etc.) and therefore influences therapeutic response. The National <strong>Cancer</strong><br />

Plan of <strong>German</strong>y, coordinated by the Federal Ministry of Health has<br />

in line with more patient-centred approach the aim to improve physician-patient<br />

communication in medical education and medical care of<br />

cancer patients. The aim of this study was to describe the status quo of<br />

the medical undergraduate and postgraduate education and residency<br />

training in terms of communication skills.<br />

Methods. In order to examine the status quo of training communication<br />

skills in medical services, a structured questionnaire was developed<br />

separate for undergraduate/ postgraduate medical education and for<br />

residency training programs. The undergraduate/ postgraduate questionnaire<br />

was applied between January and June 2011 at 1122 medical<br />

lecturers of <strong>German</strong> universities, accordingly the residency questionnaire<br />

was applied in July 2011 to 1164 directors of clinician institutes<br />

and oncology associated medical services. The questionnaires surveys<br />

educational objectives, pedagogic tools, didactics, time frames, structural<br />

circumstances, examination methods, etc. Descriptive analysis of<br />

the data (performed with SPSS for Windows, Version 18) includes mean<br />

values, standard deviation and percentage of the main questionnaire<br />

issues.<br />

Results and conclusions. The current study aspire an overview of training<br />

communication skills and social competencies in <strong>German</strong> medical education<br />

and medical care services of cancer patients. First results indicate<br />

complexity and heterogeneity with regard to structural conditions and<br />

with regard to implementation of communication skills training. The<br />

study results will provide important data to describe the need for improvement<br />

of communication skills training within medical education.<br />

0299<br />

Life goals, depression and quality of life in cancer patients<br />

*P . von Blanckenburg1 , M . Bodenbenner1 , N . Conrad1 , W . Rief1 , C . Exner1,2 ,<br />

U . Seifart3 1Philipps Universität Marburg, Klinische Psychologie und Psychotherapie,<br />

Marburg, Deutschland, 2Universität Leipzig, Klinische Psychologie, Leipzig,<br />

Deutschland, 3Rehabilitation Clinic Sonnenblick, Marburg, Deutschland<br />

Purpose. A cancer diagnosis affects the pursuit of patients’ life goals. Discrepancies<br />

occur between the importance of a life goal and the success<br />

in achieving it. The aim of the present study was to compare subjective<br />

importance and success in attainment of life goals in cancer patients<br />

with a normative sample. Further objectives were to examine associations<br />

between life goal discrepancies and patients’ well-being (quality<br />

of life/depressive symptoms), and to identify the predictive value of life<br />

goal adjustment two years later.<br />

Methods. A sample of 82 inpatients (female: 5.9%; mean age: 52.6; SD:<br />

8.0) was recruited during oncological rehabilitation. Attributes of six<br />

different life goal domains were measured using the Life Goal Questionnaire<br />

(GOALS). Depressive symptoms were assessed with the Center<br />

for Epidemiologic Studies Depression Scale (CES-D) and global quality<br />

of life using the short WHO-Quality of Life Questionnaire (WHO-<br />

QOL-BREF). Relevant medical and demographic data were recorded. A<br />

subsample (n=28) was reassessed two years later.<br />

Results. Intimacy (e.g. to have a close relationship) was the most important<br />

life goal domain and significantly more important to oncological<br />

patients than to controls. Altruism (e.g. to act unselfishly), power<br />

(e.g. to exert influence) and variation (e.g. to live an exciting life) were<br />

less important. Patients experienced greater success in attaining the life<br />

goal intimacy and less success in the domains achievement (e.g. to improve<br />

skills continuously), affiliation (e.g. to have many social contacts),<br />

power and variation. With the use of hierarchical multiple regression<br />

analyses – after controlling for demographic variables – the overall life<br />

goal discrepancy was associated with depression (adjusted R2=0.180,<br />

p


the general life goal adaption was associated with higher global quality<br />

of life after two years and not associated with depressive symptoms.<br />

Discussion: Discrepancies in the importance and perceived success in<br />

attaining life goals were associated with the subjective well-being of<br />

cancer patients. Particularly relationship-orientated life goals seem to<br />

play a major role in patients’ well-being. The results suggest that patients<br />

could profit from psychological interventions that foster life goal adaptation<br />

to enhance the global quality of life in cancer survivors.<br />

0307<br />

Certified cancer centre and specialized outpatient palliative care<br />

*K . Neuwöhner1 , *R . Wildner2 1Klinik Dr . Hancken GmbH, Zentrum f . Palliativmedizin, Stade, Deutschland,<br />

2Klinik Dr . Hancken GmbH, Palliativteam Niederelbe, Stade, Deutschland<br />

Introduction. Since April 1st, 2007, in accordance with the Social Code<br />

Book V (SGB V), patients with statutory legal insurance are entitled to<br />

specialized outpatient palliative care (SAPV). The legislator intended<br />

these services for insured persons suffering from an incurable disease,<br />

with limited life expectancy and a special need for care. Following the<br />

directives of the Federal Joint Committee ca. 170 specialized palliative<br />

home care services were founded in <strong>German</strong>y since 2007 and set to<br />

work until 2011. Only few were integrated in certified cancer centres.<br />

The reason is, cancer centres are often departments of hospitals and the<br />

medical and nursing staff members cannot cross the legal borderline<br />

between inpatient and outpatient services in <strong>German</strong>y.<br />

Method. In the regional cancer centre of Stade, certified since 2004 by<br />

ESMO, a specialized palliative home care service was founded at January<br />

1st, 2011, with a coordinator and five cooperating oncologists with<br />

certificates in palliative medicine and three cooperating palliative care<br />

nurses. The managing board of the hospital offered the staff members to<br />

change the employment contracts and split their working time with the<br />

inpatient and outpatient service in a flexible way.<br />

Results. The specialized palliative home care service of the cancer centre<br />

attended 60 patients from January until July 1st, 2011 with advanced<br />

cancer disease and in a terminal status of the disease, with averaged<br />

27 days of care. Nursing and medical staff members of the hospital paid<br />

about 500 house visits to their patients. Further results will be presented.<br />

Conclusion. There was an increased demand for specialized palliative<br />

home care. The needs were on a high level of complexity and involved<br />

medical, nursing, psycho-social and spiritual requirements. The most<br />

impressing positive experience on both sides, staff members and patients<br />

and their families was the continuity of caring across the borderline<br />

between inpatient and outpatient services.<br />

0333<br />

Physical activity in colorectal cancer patients: a review of clinical<br />

trials<br />

*W . Jensen1 , K . Oechsle1 , C . Bokemeyer1 , W . Bloch2 , F .T . Baumann2 1University Medical Center Hamburg-Eppendorf, Department of Oncology/<br />

Hematology/Bone marrow transplantation with section of Pneumology,<br />

Hamburg, Deutschland, 2<strong>German</strong> Sport University Cologne, Department of<br />

Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research<br />

and Sport Medicine, Cologne, Deutschland<br />

Background. The positive effect of physical activity in primary prevention<br />

of colorectal cancer (CRC) is well known. In addition, recent<br />

studies suggest a positive impact of physical exercise on survival in patients<br />

(pts) with early stage CRC. The aim of this review analysis was to<br />

summarize feasibility and efficacy data on physical training programs<br />

in CRC pts.<br />

Methods. A PubMed database analysis was performed searching for clinically<br />

relevant trials on physical activity and training programs in pts<br />

with localized and advanced CRC.<br />

Results. A total of 8 studies (3261 pts) entered this analysis. Physical activity<br />

was assessed by questionnaires in 5 studies. Metabolic equivalent<br />

task-hours per week (MET/h/w), was calculated additionally in 4 of<br />

them. These 5 trials consistently demonstrate improved cancer-specific<br />

and overall survival in physically active pts with localized CRC compared<br />

with less active pts. In a further study, increased cardiovascular<br />

fitness was associated with improved quality of life after curative CRC<br />

treatment. Two studies showed a beneficial effect of low- and high-intensity<br />

exercise on markers of tumor inflammation and proliferation<br />

in pts with localized and advanced CRC. This represents still the only<br />

study in pts with advanced CRC. Interventional studies evaluating specific<br />

training programs are rare and, until today, convenience evidence<br />

of positive effects of physical activity on disease- or treatment-related<br />

symptoms in pts with advanced CRC is lacking. Furthermore, systematic<br />

analyses of dietary and other lifestyle factors should be included in<br />

these evaluations.<br />

Conclusion. Various positive effects of physical activity could be demonstrated<br />

in pts with CRC, but specific trials evaluating different training<br />

programs and their efficacy on tumor/treatment-related symptoms are<br />

needed for clinical practice recommendations. In addition, they should<br />

respect aspects of life style and nutrition. Therefore, we have initiated a<br />

randomized controlled trial to determine the impact of aerobic exercise<br />

or strength training program on physical capacity, quality of life, symptom<br />

control, as well as biological parameters in pts with advanced CRC<br />

undergoing palliative chemotherapy.<br />

0342<br />

Tobacco and alcohol consumption five years after partial laryngectomy<br />

*H . Danker1 , D . Wollbrück1 , A . Meyer1 1Universität Leipzig, Medizinische Psychologie und Medizinische Soziologie,<br />

Leipzig, Deutschland<br />

Background. Tobacco and alcohol consumption are major risk factors<br />

for the development of laryngeal cancer. As a high proportion of patients<br />

continue to smoke and drink after surgery, the risk for adverse health<br />

effects remains stable. The aim of the study was the identification of<br />

conditions that increase the probability of health risk behaviors among<br />

partial laryngectomy patients.<br />

Patients and methods. We surveyed 151 laryngeal cancer patients five years<br />

after partial laryngectomy. Post-operative alcohol and tobacco consumption,<br />

socio-demographic, medical, and psychosocial parameters<br />

were investigated.<br />

Results. At the time of the survey 22% were smokers. Patients who had<br />

no or little social support were at a higher risk (OR=8.67) to continue<br />

smoking in comparison to those with adequate social support. In 28% of<br />

the male participants alcohol consumption was at a harmful level. Only<br />

two of the respondents associated their alcohol consumption with the<br />

development of the disease. 44% of the participants identified smoking<br />

as the cause of the disease. Unlike smoking, the chance of alcohol consumption<br />

was increased by high social support after surgery (OR=11.20).<br />

Discussion. Health risk behavior is often maintained after an illness of<br />

laryngeal cancer. Whereas the harmfulness of smoking appears widely<br />

known, this is far less the case with respect to alcohol. This could also<br />

be reflected in the fact that social support stimulates the consumption<br />

of alcohol on the one hand and prevents smoking on the other hand. A<br />

need for professional education and support seems appropriate given<br />

the study results.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

129


Abstracts<br />

0347<br />

Fear of recurrence and disease progression in long-term<br />

(≥5 years) cancer survivors – a systematic review of quantitative<br />

studies<br />

*L . Koch1 , L . Jansen1 , H . Brenner1 , V . Arndt1 1<strong>German</strong> <strong>Cancer</strong> Research Center (dkfz), Division of Clinical Epidemiology<br />

and Aging Research, Heidelberg, Deutschland<br />

Background. Increasing proportions of men and women diagnosed with<br />

cancer will become long-term survivors (≥5 years post-diagnosis). However,<br />

survivors may continue to experience negative effects of cancer<br />

and/or treatment, including fear of recurrence (FoR). FoR was shown<br />

to be highly prevalent in cancer survivors and found to be negatively<br />

associated with quality of life (QoL) and related to a variety of possible<br />

determinants like race, or optimism. Only few studies have examined<br />

FoR specifically in long-term cancer survivors. Knowledge on FoR and<br />

other possible psychosocial burdens in long-term survivors is crucial to<br />

ensure adequate surveillance and support for this group of survivors.<br />

Methods. Multiple databases including PUBMED, EMBASE, and PsycINFO<br />

were searched to identify relevant articles. Seventeen articles<br />

were included. Data were extracted by two reviewers and summarized<br />

following a systematic scheme.<br />

Results. Even five or more years after initial diagnosis, cancer survivors<br />

suffer from FoR. Most studies report low or moderate mean FoR scores,<br />

suggesting that FoR is experienced in modest intensity by most longterm<br />

survivors. Studies including long-term and short-term survivors<br />

indicate no significant change of FoR over time. Lower level of education,<br />

lower level of optimism and being Hispanic or White/Caucasian<br />

were found to be associated with higher levels of FoR. Significant negative<br />

associations were reported between FoR and QoL as well as psychosocial<br />

well-being. All but three studies were conducted in the USA.<br />

General cut-offs for severity/clinical significance of FoR have not been<br />

defined yet.<br />

Conclusions. FoR at modest intensity is experienced by most long-term<br />

cancer survivors. Future studies should address determinants and consequences<br />

of FoR in more detail. Validated instruments providing cutoffs<br />

for severity/clinical significance of FoR should be developed and<br />

utilized. Efficient interventions should be implemented to reduce detrimental<br />

effects of FoR.<br />

0352<br />

Training physical activity in cancer patients<br />

*C . Kerschgens1 , J . Langenhorst1 , A . Holzgreve2 1 2 Vivantes Rehabilitation GmbH, Onkologie, <strong>Berlin</strong>, Deutschland, Vivantes<br />

Stiftung, <strong>Berlin</strong>, Deutschland<br />

Summary. A training program for cancer patients during chemo and/<br />

or radiotherapy is feasible. Patients with metastatic disease show differences<br />

in physical status and psychosocial issues compared to patients<br />

treated in adjuvant settings.<br />

Introduction. Much information has been given concerning physical<br />

activity and exercise training in cancer patients, mostly related to prevention<br />

of cancer or cancer recurrence. Therefore patients in the adjuvant<br />

setting, namely women with breast cancer were targets of these<br />

interventions. Less is known about training activities in cancer patients<br />

treated in a palliative setting. Moreover most of these patients are not<br />

able to join the athletic program, which is financed by the <strong>German</strong> health<br />

insurance system (Rehasport).<br />

Material and methods. Beginning in August 2010 a weekly program<br />

was offered, which included a 90-minute training session, consisting of<br />

30 minutes of exercises in strength and endurance with sports equipment,<br />

30 minutes of coordination and balance and 30 minutes of relaxation<br />

(PMR). The program was open to all interested patients who<br />

underwent chemo and/or radiotherapy at the time. The program was<br />

conducted by sports therapists and constantly supervised by a trained<br />

130 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

oncologist. Each patient was scheduled to participate for 6 months. At<br />

the beginning and end of the program assessments were performed.<br />

These included a 6-minutes walking test, an assessment for CIPN and<br />

questionnaires concerning psychosocial issues and well-being (PHQ<br />

and EORTC-LQ).<br />

Results. From August 2010 to May 2011 17 patients were enrolled in the<br />

program, median age was 58.41 y, 6 male and 11 female pts. 7 patients<br />

had metastatic disease and were treated in palliative intention, 10 patients<br />

were women with breast cancer in an adjuvant therapy setting.<br />

The 6-MGT in pts with metastatic disease showed a median result of<br />

398 mts. (120–528) and in pts with adjuvant therapy 565.1 mts (435–670).<br />

The CIPN-assessments classified the neuropathy according to the CTC,<br />

highest level of CIPN in all pts was sensory CTC grade I, in 84% of the<br />

pts with metastatic disease and 20% of the pts in the adjuvant setting.<br />

Concerning the psychosocial evaluation depressive symptoms were detected<br />

in 62.5% of the adjuvant treated pts and 42.8% of the palliative<br />

treated pts. Quality of life according to the EORTC was equally scored<br />

by adjuvant and palliative treated pts. The majority of palliative treated<br />

pts. was not able to continue the program over 6 months, reasons were<br />

progressive disease and concomitant worse condition. An interview<br />

was done with all pts at the end of the program; all pts mentioned the<br />

program to be helpful to regain physical activity and well-being.<br />

Discussion. Our program showed good acceptance in adjuvant and palliative<br />

treated pts. In the performed assessments the palliative treated<br />

pts showed clearly poorer performance in their physical activity (6MGT<br />

and CIPN) but better or equivalent status in psychosocial issues and<br />

quality of life.<br />

0354<br />

Movement therapy in nature based on the Scandinavian philosophy<br />

of outdoor life (Friluftsliv)<br />

*S . Meier1 , S . Tari1 , W . Hiddemann1,2 , P . Heußner1,2, 1 2 lebensmut e .V ., Psycho-Onkologie, München, Deutschland, Klinikum der<br />

LMU, Medizinische Klinik und Poliklinik III, München, Deutschland<br />

The positive effects of moving and staying in motion on the quality of<br />

life of cancer patients have been scientifically proven many times. At<br />

the same time using the soothing effects of nature is a simple and valuable<br />

approach, but in contrast it is rarely implemented. In September<br />

2009, the Outdoor Active program of the Association lebensmut e.V.<br />

in cooperation with the Psycho-Oncology at the Medical Clinic III at<br />

the Hospital of the University of Munich has started. In a four-weekly<br />

period easy day hikes to the nearby surrounding are organized, which<br />

take place in any weather condition. The group is composed of a maximum<br />

of eight patients, a psycho-oncologist, a sports scientist and<br />

two dogs. Patients receive at registration a detailed consultation from<br />

the psycho-oncologist and then have to bring medical clearance from<br />

their doctor. The tours are selected according to a defined list of criteria<br />

and pre-tested. In addition to formal criteria such as distance, elevation<br />

profile, route conditions and the season, the legal insurance criteria<br />

have to be met. Furthermore, care is taken all the tours to be planned<br />

are easily performed, and the transfer of movement in everyday life is<br />

possible. The rediscovery of nature and discovering new things is an<br />

important aspect for the participants. Perception, relaxation or strengthening<br />

exercises as well as meditations are offered as part of the „Active<br />

Outdoors“ program; the following principle applies: In nature it is not<br />

important to measure how much one has moved or how far one has<br />

walked. The crucial thing is „to be“ and to be noted that one is moving,<br />

living and simply enjoying the moment. To date, a group of participants<br />

are regularly taking part in the tours. To be observed is that individuals<br />

are independently taking part in the active tours and making their own<br />

trips. And along with the development of new environment out of everyday<br />

life, also the living environment of many patients has expanded:<br />

they draw self-assurance and strength from their experience during the<br />

„Active Outdoors“ tours.


0368<br />

Benefit finding and posttraumatic growth in long-term colorectal<br />

cancer survivors: prevalence, determinants, and associations<br />

with quality of life<br />

*L . Jansen1 , M . Hoffmeister1 , J . Chang-Claude2 , H . Brenner1 , V . Arndt1 , 3<br />

1Deutsches Krebsforschungszentrum (dkfz), Klinische Epidemiologie<br />

und Alternsforschung, Heidelberg, Deutschland, 2Deutsches Krebsforschungszentrum<br />

(dkfz), Epidemiologie von Krebserkrankungen, Heidelberg,<br />

Deutschland, 3GEKID, <strong>Cancer</strong> Survival Working Group, Heidelberg,<br />

Deutschland<br />

Background. Research on quality of life of colorectal cancer survivors<br />

has mainly focused on downsides of cancer survivorship like long-term<br />

symptoms and restrictions in quality of life. But studies have shown that<br />

cancer survivors may also report positive changes in the context of their<br />

disease, like benefit finding (BF) and posttraumatic growth (PTG). To<br />

get further insight into BF and PTG in long-term colorectal cancer survivors,<br />

the aim of this study is to investigate the prevalence of BF and<br />

PTG and to determine what socio-demographic, clinical, and psychosocial<br />

factors distinguish colorectal cancer survivors who show a high<br />

level of BF and PTG from those who experience only low levels.<br />

Methods. This analysis includes patients with colorectal cancer from<br />

a population-based case-control study (DACHS-study) carried out in<br />

southwest <strong>German</strong>y (Rhine-Neckar-Odenwald and Heilbronn Region).<br />

BF, PTG, and quality of life were assessed five years after diagnosis in<br />

483 colorectal cancer patients using the benefit finding scale, the posttraumatic<br />

growth inventory, and the EORTC QLQ-C30. Prevalence of<br />

BF and PTG, determinants of moderate to high BF and PTG, and the<br />

association between BF, PTG, and quality of life were investigated.<br />

Results. Almost all survivors experienced BF and PTG at least to some<br />

degree and 64% and 46% of the survivors experienced moderate to high<br />

levels of BF and PTG, respectively. Survivors with the highest level<br />

of education and with higher depression scores reported less BF and<br />

PTG. PTG increased with increasing stage and self-reported burden of<br />

diagnosis. Quality of life only correlated weakly with PTG (Pearson’s<br />

r=0.1180, p=0.0112) and not with BF (r=0.0537, p=0.2456).<br />

Conclusion. Our results show that BF and PTG are highly prevalent<br />

among long-term colorectal cancer survivors. Thus, to get a comprehensive<br />

understanding of the adjustment of cancer patients after diagnosis,<br />

negative as well as positive consequences of cancer survivorship<br />

need to be investigated. As quality of life was only weakly related to BF<br />

and PTG, the generally reported high global long-term quality of life<br />

after cancer cannot be directly explained by these positive adjustments.<br />

0390<br />

Effect of a four-week bicycle tour on the prostate specific<br />

antigen, total testosterone, and interleukin-6 value in prostate<br />

cancer patients<br />

*M . Müsgens1 1Deutsche Sporthochschule, Institut für Kreislaufforschung und Sportmedizin<br />

– Abteilung molekulare und zelluläre Sportmedizin, Köln, Deutschland<br />

Introduction. Prostate cancer is nowadays in the male population with<br />

about 20% one of the most common malignant tumor [4]. This urological<br />

tumor can occur at the age of 45 years and be diagnosed, but the<br />

probability is very low, succumb to this disease at such an early stage [2].<br />

The framework for the diploma work is a four-week bicycle trip from<br />

Cologne to Marseille, with eight participants who suffer from prostate<br />

cancer. The focus of this study is on three medical parameters, namely<br />

the prostate-specific antigen, the total testosterone and the interleikin-6.<br />

These parameters are tested for the effect of a prolonged endurance performance<br />

on the bike. The measurements were made one week before<br />

and one week after the bike tour and six months after the intervention.<br />

Results. The follow-up measurements showed a slight reduction in PSA<br />

level, but this development can not be explained as the sole cause of the<br />

bike tour. Regarding the measured testosterone concentration, a significant<br />

reduction of the first to the third measurement was identified. These<br />

results support previous studies in which the cycling is an effective<br />

rehabilitative agent for prostate cancer patients to reduce the total testosterone<br />

value in the long term. The data of the cytokine interleukin-6<br />

showed no significant changes by the endurance bike ride and mostly<br />

remained at a constant concentration level.<br />

Discussion and conclusion. This study has no elevated PSA and interleukin-6<br />

levels after a four-week bicycle tour can be measured. Related to<br />

testosterone, there was a significant reduction in concentration in the<br />

follow-up measurement. Causes that may lead to an influence of testosterone<br />

has behavioral characteristics such as physical training, nutrition,<br />

sleep, alcohol consumption, smoking and stress [3]. Furthermore,<br />

it is scientifically proven that endurance sports often leads to a decrease<br />

in testosterone concentration [1]. However, further studies have to be<br />

conducted, in order to better understand the effects of a physical endurance<br />

stress on PSA, testosterone and interleukin-6 in prostate cancer<br />

patients.<br />

1 . Diederich S et al (2007) Hormonelle Veränderungen durch Ausdauersport .<br />

Blickpunkt der Mann 5(4):36–41<br />

2 . Hautmann R, Huland H (2006) Urologie<br />

3 . Sommer F (2006) Männergesundheit . Blickpunkt der Mann 4(3):5–10<br />

4 . Stenzl A (2009) Prostatakarzinom<br />

5 . Baumann FT, Herweg C, Schüle K (2008) Bewegungstherapie und Sport bei<br />

Krebs<br />

0392<br />

The attending physician between psychosocial challenge and<br />

medical requirement – Orientation to needs in an oncologic<br />

practice<br />

*U . Hoppenworth1 , *C . Sokol1 , M . Fischer2 , F . Adam2 1 2 Hoppenworth/Sokol, Hildesheim, Deutschland, megapharm, Sankt<br />

Augustin, Deutschland<br />

The integration of psychosocial care within medical treatment poses a<br />

special challenge to hospitals and oncological practices. According to<br />

epidemiological estimations about 40–50% of all cancer patients develop<br />

physical and mental problems as a result of their cancer. Studies<br />

show that early psychosocial and psychooncological support is useful to<br />

counter chronification, to improve the therapy compliance of patients<br />

and to improve their quality of life. With the aid of the Hornheider<br />

Fragebogen the Oncologist is able to recognize at an early stage whether<br />

patients are under psychological pressure. Our project is based on<br />

the analysis of more than 20,000 questionnaires, which were collected<br />

between 1998 and 2011. Through this survey it was possible to identify<br />

the care required by cancer patients with different tumours receiving<br />

ambulatory treatment, both on a singular and comparative basis. By<br />

analyzing the data it will be possible to gain insights on similarities<br />

and differences in the experiences of patients and their coping strategies<br />

taking into account their sociopsychologic and sociodemographic<br />

background. Furthermore specific core disorders will be identified. In<br />

summary this study is able to provide the empirical base for a more accurate<br />

indication for psychooncological treatment and not least could<br />

improve patients‘ quality of life.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

131


Abstracts<br />

0409<br />

Enhanced oxygen capacity results in fatigue-reduction and<br />

improvement of quality of life<br />

*M . Bernhörster1 , L . Vogt1 , K . Schmidt1 , A . Lungwitz1 , C . Thiel1 , E . Jäger2 ,<br />

W . Banzer1 1 2 Goethe Universität, Sportmedizin, Frankfurt, Deutschland, Krankenhaus<br />

Nordwest GmbH, Hämatologie und Onkologie, Frankfurt, Deutschland<br />

Introduction. There is moderate evidence that physical activity is beneficial<br />

in cancer treatment. Patients improve in endurance and muscle<br />

strength as well as physical, social and psychological functioning. However,<br />

to our knowledge only limited data is available regarding the<br />

relationship between performance enhancement and quality of life<br />

improvements during cancer treatment. Therefore we aimed to explore<br />

the dependence of changes in oxygen uptake, quality of life and cancer<br />

related fatigue (CRF) during a 4-month period.<br />

Methods and materials. Aerobic exercise capacity (VO2peak), quality<br />

of life and fatigue symptom (EORTC QLQ-C30) were obtained in 101<br />

cancer patients (30–77 years). After initial examination patients were<br />

given the opportunity to engage in supervised and/or home-based training<br />

interventions. Patients were re-examined after 16 weeks and stratified<br />

into 3 sub-groups (terciles) with respect to the absolute change in<br />

VO2peak.<br />

Results. Depending on the absolute change of VO2peak (1.9±1.7; 1.8±0.8;<br />

5.7±2.8 ml/kg/min) there were significant differences in the quality of<br />

life improvement and cancer-related fatigue reduction. Nevertheless,<br />

patients in the upper third, with initially high levels of fatigue, were<br />

as likely to show a minimum 10% enhancement in VO2peak as patients<br />

with low or medium fatigue levels. Subjects with a minimum 10%<br />

VO2peak -increase had a 2.6 times higher chance to obtain a 20% fatigue<br />

symptom reduction.<br />

Conclusions. In the present study almost all patients of the mixed diagnosis<br />

cancer population improved their exercise capacity and demonstrated<br />

enhanced QoL after 16 weeks of supervised and/or home-based<br />

exercise training. The findings point toward a relationship of exercise<br />

capacity enhancement, quality of life improvement and fatigue symptom<br />

reduction during cancer treatment. Beside the retrospective analysis,<br />

that is not capable to clearly demonstrate causal dose-responserelationships,<br />

the study is limited in consideration of the fact, that CRF<br />

is a multidimensional complex of different affections. Additional data is<br />

necessary to determine the most effective parameters of exercise for fatigue<br />

management including the types, mode, intensity, frequency and<br />

duration of exercise regimes. Developing exercise programs that incorporate<br />

these factors will allow patients to reduce CRF in an optimum of<br />

time and energy expenditure.<br />

0419<br />

Integrating palliative care into comprehensive breast cancer<br />

therapy – first experiences<br />

*R . Wuerstlein1,2 , S . Frechen2,3 , J . Wolf2,4 , M . Hellmich2,3 , P . Mallmann2,5 ,<br />

N . Harbeck1,2 , R . Voltz2,3 , J . Gaertner2,3 1 2 Universitätsklinik, Brustzentrum, Köln, Deutschland, CIO, Köln-Bonn,<br />

Deutschland, 3Universitätsklinik Köln, Z . für Palliativmedizin, Köln, Deutschland,<br />

4Universitätsklinik, Klinik für Innere Medizin I, Köln, Deutschland,<br />

5Universitätsklinik, Frauenklinik, Köln, Deutschland<br />

Background. The integration of palliative care (PC) early in the disease<br />

trajectory of life limiting diseases is explicitly recommended by the<br />

World Health Organisation (WHO). This recommendation was included<br />

in the administrative directives for principles of cancer care in our<br />

institution. The aim of this study was to assess, at what point in the disease<br />

trajectory patients with breast cancer (BC) were first provided PC<br />

and whether – over one year – an earlier integration of PC could be<br />

achieved.<br />

132 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Objective. A retrospective systematic chart analysis of a two year period<br />

was performed. We assumed that seeing patients relatively early during<br />

the course of the illness would be reflected by seeing patients that would<br />

be not already in a reduced performance status and/or experiencing<br />

symptoms that are indicators for advanced disease (e.g. dyspnoea). Therefore,<br />

the first PC consultation for every BC patient seen by the PC<br />

support team was analyzed to assess in what physical condition patients<br />

receive first PC consultation and what burdening symptoms they already<br />

experienced.<br />

Results. Many patients were already in a reduced physical state and were<br />

experiencing burdening symptoms. After a one-year period, the number<br />

of burdening symptoms identified at first PC consultation and the<br />

admissions to the in-patient PC ward decreased while non-PC physicians<br />

increasingly requested PC support for psychosocial interventions.<br />

Conclusion. Though some degree of development towards a better understanding<br />

of PC competencies and the early integration approach<br />

could be demonstrated, the adoption of the WHO recommendation<br />

alone did not suffice to integrate PC into routine BC therapy early in<br />

the course of the illness. Therefore, the development of disease specific<br />

guidelines in an interdisciplinary comprehensive-cancer-care setting is<br />

advocated. A standard operating procedure for the CIO (centrum of integrated<br />

oncology) Cologne-Bonn was developed and will be presented.<br />

0433<br />

New <strong>German</strong> Hospice and Palliative Care Registry<br />

*L . Radbruch1 , T . Montag2 , K . Neuwöhner3 , G . Lindena4 , F . Nauck5 1 2 Universitätsklinikum, Klinik für Palliativmedizin, Bonn, Deutschland, Universitätsklinikum,<br />

Zentrum für Palliativmedizin, Köln, Deutschland, 3Uni versitätsklinikum Bonn, Abteilung für Palliativmedizin, Bonn, Deutschland,<br />

4 5 CLARA Klinische Forschung, Kleinmachnow, Deutschland, Universitätsmedizin,<br />

Abteilung Palliativmedizin, Göttingen, Deutschland<br />

Introduction. Data from clinical studies should be rounded off with<br />

clinical practice data especially in patients with multiple comorbidities<br />

or end of life state for improving processes of care. The <strong>German</strong><br />

Palliative Care Association (DGP) starts a hospice and palliative care<br />

registry collecting a defined core data set and subsequent feedback and<br />

benchmarking for quality improvement of hospice and palliative care<br />

in <strong>German</strong>y.<br />

Methods. Interested outpatient and inpatient institutions providing<br />

specialized hospice and palliative care SHPC announce their participation.<br />

Precondition is the collection of the core data set electronically<br />

and patient consent. The core data set includes patient demographic<br />

data, diagnoses and impact, disease severity, symptom incidence and<br />

severity, selected drug and other treatment options as well as outcome<br />

death or discharge – in inpatients –, admission to a hospital – in outpatients<br />

– and evaluation of the care process by the team. These data sets<br />

are to be de-identified and uploaded to the registry via a secure line. The<br />

evaluation is fed back to the participating facilities of SHPC and they<br />

additionally receive comparison data of other centers, also summarized<br />

by facility type for benchmark purposes.<br />

Results. The core data set was defined in 2009, newly discussed and<br />

slightly changed considering the experiences. Primary program providers<br />

were made interested to include the core data set in their programs.<br />

The registry allows comparing the structure and indication quality of<br />

SHPC facilities, benchmarking processes and results, each with deidentified<br />

data for the participating institutions. It also offers data for<br />

scientific evaluation of major interest across settings.<br />

Discussion. Hospice and palliative care treatment SHPC facilities are<br />

working under regionally varying conditions with room for improvement<br />

concerning provision of care, kind of care and interdisciplinary<br />

cooperation, qualification, quality of care and reimbursement. A specific<br />

issue is the recognition and definition of the patient’s referral to<br />

specialized hospice and palliative care in time. The participation in the<br />

registry is voluntary and the motivation of facilities is crucial to share


the adjunctive costs. DGP is optimistic to successfully implement and to<br />

achieve the necessary supra-regional and supra-institutional participation.<br />

The experiences with the preliminary quality improvement project<br />

hospice and palliative care evaluation HOPE provide confidence.<br />

0461<br />

Evaluation of the impact of a 3-month strength training on<br />

immune system, fatigue and quality of life in women with breast<br />

cancer undergoing chemotherapy<br />

*S . Frisse1 , L . Gerland2 , S . Latta1 , W . Bloch2 , N . Harbeck1 , F .T . Baumann2 1 2 Uniklinik Köln, Frauenklinik, Brustzentrum, Köln, Deutschland, Deutsche<br />

Sporthochschule Köln, Institut für Kreislaufforschung und Sportmedizin,<br />

Abteilung für molekulare und zelluläre Sportmedizin, Köln, Deutschland<br />

Background. 80–96% of breast cancer patients experience fatigue during<br />

chemotherapy (Bardwell 2008), causality remains unexplained (Glaus<br />

1996). Most patients are subjectively more restricted by fatigue than by<br />

pain or nausea (Arndt 2006). Studies showed positive effects of endurance<br />

training on the intensity of fatigue. The range of studies about feasibility<br />

and efficiency of exclusive strength training in the rehabilitation<br />

of breast cancer patients experiencing fatigue is so far insufficient (De<br />

Backer 2009). The impact of physical activity on the immune system is<br />

not yet resolved unambiguously.<br />

Objective. The study aims at analyzing the development of parameters<br />

of the immune system, fatigue and quality of life in breast cancer patients<br />

executing strength training during chemotherapy.<br />

Methods. 40 breast cancer patients in adjuvant chemotherapy are involved<br />

6–12 weeks after surgery: 20 patients each are assigned to the<br />

intervention and to the control group. Strength training is executed twice<br />

a week for about 60 minutes for a period of 12 weeks. The following<br />

parameters are analyzed at the beginning and after 12 weeks: parameters<br />

of the immune system (e.g. erythrocyte-flexibility and cytokines),<br />

fatigue via standardized questionnaire MFI-20 as well as quality of life<br />

based on the questionnaires EORTC QLQ-30 and QLQ-23. Fatigue and<br />

quality of life are examined additionally in week 6.<br />

Results. The analysis of all results is expectedly done in the end of 2011.<br />

Bettering of fatigue is noticeable by trend. Parameters of the immune<br />

system are not yet interpreted. By the time of presentation, more comprehensive<br />

data will be available.<br />

Discussion. A positive tendency concerning fatigue can be considered as<br />

a surplus for breast cancer patients. Although the number of test persons<br />

is comparatively small, a heterogeneous collective of patients becomes<br />

apparent. Improvement of quality of life and attenuation of fatigue<br />

would be considered as a major success.<br />

0463<br />

Evaluation of the impact of a 3-month strength training on<br />

strength parameters, EMG and oxidative stress of breast cancer<br />

patients during chemotherapy<br />

*L . Gerland1 , S . Frisse2 , S . Latta2 , W . Bloch1 , N . Harbeck2 , F .T . Baumann1 1Deutsche Sporthochschule Köln, Institut für Kreislaufforschung und<br />

Sportmedizin, Abteilung für molekulare und zelluläre Sportmedizin, Köln,<br />

Deutschland, 2Unifrauenklinik, Brustzentrum, Köln, Deutschland<br />

Background. Evaluations of the effect of strength training in oncological<br />

rehabilitation are rare. The impact of physical activity on the immune<br />

system is not yet verified definitely. It is assumed that regular physical<br />

activity has positive effects on oxidative stress (Gago-Dominguez 2007).<br />

Studies have shown significant improvement of muscular strength of<br />

cancer patients after intensive strength training (Quist et al 2006, Galvao<br />

et al 2007, Battaglini et al 2007). Studies implementing EMG-measurement<br />

in strength tests of breast cancer patients could not be found.<br />

Aims. The study aims at analyzing the development of strength parameters,<br />

EMG and oxidative stress and antioxidative capacity of breast<br />

cancer patients executing strength training during chemotherapy.<br />

Methods. The study is organized as a prospectively randomized and<br />

controlled preference study. 40 breast cancer patients in adjuvant chemotherapy<br />

are involved 6–12 weeks after surgery for 12 weeks: 20 probands<br />

each are assigned to the intervention and to the control group.<br />

Strength training is executed twice a week for about 60 minutes, consisting<br />

of 7 routines in 3 sets of 8–12 dynamic repetitions. The training is<br />

constantly supervised. Subjective intensity is controlled during exercise<br />

by modificated RPE-scale, aiming at local muscular exhaustion. The<br />

following parameters of both control and intervention group are analyzed<br />

in the beginning and after the 12 weeks: parameters of the immune<br />

system (oxidative stress, antioxidative capacity), strength is examined<br />

by isometric and isokinetic tests of upper and lower extremities including<br />

EMG-measurement.<br />

Results. The examination of all results is scheduled for the end of the<br />

year 2011. An increase of muscular strength is noticeable by trend. Parameters<br />

of the immune system have not yet been interpreted. By the time<br />

of presentation, more comprehensive data will be available.<br />

Discussion. A significantly positive tendency concerning strength parameters<br />

can be considered a surplus for cancer patients. Although the<br />

number of test persons is comparatively small, a heterogeneous collective<br />

of patients becomes apparent. The current tendencies suggest the<br />

integration of an intensive strength training program into the rehabilitation<br />

of mastocarcinoma patients.<br />

0470<br />

Subjective performance of memory and concentration in patients<br />

with brain metastases before and after radiotherapy<br />

A . Cole1 , S . Janssen1 , M . Bremer1 , *D . Steinmann1 1MHH, Strahlentherapie, Hannover, Deutschland<br />

Purpose. To prospectively assess the progress of neurocognitive functions<br />

in patients with brain metastases from any solid primary treated<br />

with radiotherapy to the brain.<br />

Patients and methods. Adult patients with brain metastases (n=50) with<br />

or without surgery (n=10 vs. n=40) were treated with radiotherapy (RT)<br />

based on different dose-fraction schemes according to the patient’s status:<br />

whole-brain RT (n=29) or hypofractionated stereotactic RT (n=21)<br />

were performed. In the control group breast cancer patients without<br />

cranial involvement (n=29) were treated with whole-breast radiotherapy<br />

to the breast or chest wall after surgical excision of the tumourous<br />

breast tissue. Patients were recruited between May 2008 and December<br />

2010 to subjectively evaluate cognitive function before RT, 6 weeks, 3<br />

and 6 months after irradiation. For assessment of the neurocognitive<br />

status the relatively new <strong>German</strong> questionnaires for self-perceived deficits<br />

in attention (FEDA) and for acquisition of experiences with every<br />

day memory (FEAG) were used.<br />

Results. After a limited survival in patients with BM (4.3 months), 20 patients<br />

(40%) died. Patients with operation (4.1 mo) lived longer than patients<br />

without surgery (6.8 mo) and hfSRT (9.9 mo) provided a better<br />

survival than WBRT (2.9 mo). In patients with BM attention and memory<br />

status decreased at every point of time while it stayed relatively<br />

stable in the control group. Differences in progress explored between<br />

the two groups were significant in all three FEDA scales distractibility<br />

and deceleration of mental processes (p=0.049), exhaustion and deceleration<br />

of activities (p=0.002) and decrease in motivation (p=0.035)<br />

but not in every day memory as assessed with the FEAG questionnaire.<br />

Without operation patients had a better memory (p=0.039). As a trend<br />

patients with hfSRT rather then WBRT had better performances in all<br />

subscales.<br />

Conclusion. NCF in patients with BM declined for all 4 scales at every<br />

point of time after RT while breast cancer patients stayed more stable.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

133


Abstracts<br />

0471<br />

Occurrence and impact of pain, insomnia, fatigue symptom<br />

cluster in 207 cancer patients with pain treatment: a secondary<br />

data analysis<br />

*M . Gunga1 , M . Landenberger1 , P . Jahn1 1MLU Halle, IGPW, Halle, Deutschland<br />

Objective. <strong>Cancer</strong> patients experience a variety of symptoms either as<br />

a result of their disease or in consequence of their treatment. These<br />

symptoms occur frequently, in a non random distribution, in groups<br />

or clusters. In a definition from Kim et al. (2005) „A symptom cluster<br />

is defined as consisting of 2 or more symptoms that are related to each<br />

other and that occur together” (p. 278). The intention of this secondary<br />

data analysis was to examine patterns of symptom clusters over time at<br />

four different measuring times and their impact on global health status<br />

and functionality.<br />

Method. The basis of this analysis is a cluster-randomized multicenter<br />

trial with the title “Improvement of pain related self management for<br />

oncologic patients through a transinstitutional modular nursing intervention”<br />

(Jahn et al. 2010). Patients were included if they had diagnosed<br />

malignancy, persistent pain >3 days and average pain intensity ≥3/10.<br />

The trial was conducted on 18 wards in 2 <strong>German</strong> university hospitals.<br />

The analysis of the present study is carried out with the help of the “PIFcluster”<br />

(pain-insomnia-fatigue-cluster), a common cancer symptom<br />

cluster. A patient in the study complied the “PIF-cluster” conditions if<br />

in each case pain-, insomnia- and fatigue-measured values were higher<br />

than 30 out of 100.<br />

Results. 207 patients participated (average age: 56.8±12.3 years, 57.5%<br />

male). 160 (77.3%) participants showed a PIF-cluster at baseline. 136<br />

(65.7%) of these patients met the terms of the PIF-cluster at the secondary<br />

measurement (the day before discharge). Furthermore 113 (54.6%)<br />

persons matched the PIF-cluster seven days after discharge and 68<br />

(32.9%) persons matched it 28 days after discharge. It becomes apparent<br />

that if somebody showed a new occurred PIF-cluster at a later measuring<br />

point, his global health status and functionality values were ordinarily<br />

significant poorer. Such a patient shows on average a −12.7 points<br />

lower value for global health status, −9.4 points for physical function,<br />

−39.2 points for role function, −2.8 points for emotional function, −4.5<br />

points for cognitive function and −18.2 points compared with the first<br />

measuring point.<br />

Conclusion. To sum up this longitudinal research shows that symptom<br />

clusters are relative stable during a certain period and that the occurrence<br />

or loss of symptom clusters has direct effects on the patient’s quality<br />

of life and his functionality.<br />

134 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Urologische Tumoren<br />

0031<br />

Combined anti-inflammatory, immunomodulatory and angiostatic<br />

treatment in patients with castration-refractory prostate<br />

cancer: a phase II study of Imatinib with Pioglitazone, Etoricoxib,<br />

Dexamethasone and low-dose Treosulfan<br />

*A . Reichle1 , M . Vogelhuber1 , S . Feyerabend2 , T . Südhoff3 , M . Schulze4 ,<br />

J . Hübner5 , R . Oberneder6 , M . Baier7 , A . Rübel7 , K . Birkholz7 , A . Bakhshandeh-<br />

Bath8 , R . Andreesen1 1University Hospital, Department of Hematology and Oncology, Regensburg,<br />

Deutschland, 2University Hospital, Department of Urology, Tübingen,<br />

Deutschland, 3Hospital, Department of Hematology and Oncology, Passau,<br />

Deutschland, 4Outpatient Center, Urology and Oncology, Markkleeberg,<br />

Deutschland, 5J .W . Goethe University, Department of Oncology, Frankfurt,<br />

Deutschland, 6Hospital, Department of Urology, Planegg, Deutschland,<br />

7 8 Novartis Pharma GmbH, BU Oncology, Nürnberg, Deutschland, Outpatient<br />

Center, medical oncology, Hamburg, Deutschland<br />

Background. With a median overall survival of about 19 months, therapeutic<br />

options for patients (pts) with castration-refractory prostate<br />

cancer (CRPC) are still limited. Release and continuous production of<br />

pro-inflammatory cytokines may account for its resistance towards cytotoxic<br />

drugs. Therefore, this phase II study analyzed the PSA-response<br />

rate in pts with CRPC to combined biomodulatory agents in pts with<br />

CRPC.<br />

Methods. In 11 <strong>German</strong> centers, 69 pts with histologically confirmed<br />

CRPC (according to EAU guidelines) were enrolled. In the 6 months<br />

core phase pts were continuously treated with daily doses of imatinib<br />

mesylate, pioglitazone, etoricoxib, treosulfan and dexamethasone until<br />

PSA progression. Pts responsive to study medication were allowed to<br />

enter an extension phase until disease progression or intolerable toxicity<br />

occurred. During the study, PSA-values, ECOG performance status<br />

and QoL were continuously assessed.<br />

Results. The core phase of this study was finished in July 2009. 18 patients<br />

were allowed to enter the extension of the study and two of these<br />

pts are still ongoing As of June 2011 they have been on study medication<br />

for 27 months. At baseline the median PSA value was 45.3 ng/ml (range<br />

5–3603). The majority of pts had PSA doubling times of 50 to 100 days.<br />

Of the 61 evaluable pts, 23 pts (37.7%) were considered as PSA responders<br />

with a confirmed PSA decline of at least 50%. Within the responders<br />

PSA decreased from 278.9 (±784.1) to 8.8 (±11.6) ng/ml during the<br />

treatment period. Median time to PSA progression, PSA response and<br />

overall survival were not achieved. 14 of the 38 non-responders (36.8%)<br />

showed a stable disease. A total of 32 patients (52%) showed a decrease<br />

in PSA during treatment in the core phase of the study. In some pts the<br />

therapy led to complete resolution of bone lesions.<br />

Conclusions. The study evaluated a new multi-targeted approach for pts<br />

with CRPC. This multi-targeted approach led to an impressive response<br />

rate of 37.7%, although the substances have shown limited efficacy in<br />

single therapeutic use. Two patients are still ongoing in the extension<br />

phase and have received study medication for 27 months (as of June<br />

2011). A good PSA response and manageable toxicity make this combination<br />

treatment to an alternative treatment option to present regimens.


0033<br />

Effect of intravenous zoledronic acid (ZOL) on bone metabolism<br />

in patients (pts) with metastatic bone disease in prostate cancer<br />

(PC) and breast cancer (BC): the ZOTECT study<br />

*J . Gschwend1 , T . Maurer1 , T . Heck1 , M . Muth2 , A . Rübel2 , K . Birkholz2 ,<br />

T . Bauer3 , M . Ziller3 , P . Hadji3 1Klinikum rechts der Isar, Technische Universität, Urologische Klinik,<br />

München, Deutschland, 2Novartis Pharma GmbH, BU Oncology, Nürnberg,<br />

Deutschland, 3Phillips-Universität, Klinik für Gynäkologie, Gynäkologische<br />

Endokrinologie und Onkologie, Marburg, Deutschland<br />

Background. Approximately 75% of pts with BC or PC will develop bone<br />

metastases (BM), which influence bone metabolism and increase the<br />

incidence of skeletal related events (SREs). The treatment of pts with<br />

ZOL reduces the incidence and delays the onset of SREs. The primary<br />

objective of this study was to access the course of several bone markers<br />

under therapy with ZOL and the correlation with disease outcomes,<br />

as recent studies showed strong correlations between the level of bone<br />

markers and SREs.<br />

Methods. This prospective, single arm, open-label study investigated<br />

the effect of ZOL (4 mg IV q4wks given for 4 continuous months) on<br />

bone markers (CTX, PINP, RANKL, OPG) in PC and BC pts with BM.<br />

A final follow-up was conducted after 12 months. Secondary objectives<br />

included the relationship between metastatic sites assessed by bone scan<br />

and the level of bone markers at study entry, analgesics score and pain<br />

assessment, the relationship between pain and SREs and the course of<br />

bone markers, SRE rate, quality of life, Estradiol and PSA changes.<br />

Results. Between May 06 and August 08, 99 BC pts and 301 PC pts were<br />

recruited at 98 <strong>German</strong> sites. The course of OPG and RANKL was not<br />

significantly influenced by ZOL, however the level of PINP and CTX<br />

significantly decreased to stable values (p


Abstracts<br />

0084<br />

TCAM2-celline: the right model for seminoma studies?<br />

*U . Eppelmann 1 , F . Gottardo 1 , J . Wistuba 1 , F . Wübbeling 2 , M . Burger 2 ,<br />

S . Schlatt 1 , S . Kliesch 1 , C . Mallidis 1<br />

1 Universitätsklinikum Münster, Centrum für Reproduktionsmedizin und<br />

Andrologie, Münster, Deutschland, 2 Universität Münster, Institut für Numerische<br />

und Angewandte Mathematik, Münster, Deutschland<br />

Background. Germ cell tumours (GCTs) constitute over 60% of all malignancies<br />

diagnosed in men between the ages of 17 and 45 years. Of<br />

these, the most frequent are seminomas and embryonal carcinomas.<br />

Although testicular tumours have excellent cure rates, the success of<br />

the therapy is dependant on the accuracy of diagnosis and choice of<br />

treatment. Derived from a human seminoma, TCAM2 cells constitute<br />

the main model for in vitro studies of the condition. Despite their wide<br />

spread use, they have only been partially characterised, hence questions<br />

remain regarding the homogeneity of TCAM2 and as a consequence<br />

there are doubts as to how representative the cell line is of the true pathological<br />

state. Raman microspectroscopy is a laser based non invasive<br />

technique which can provide a detailed chemical fingerprint of a living<br />

cell and as such is being increasingly employed in medical research.<br />

Our aim was to systematically assess the Raman spectral profiles of our<br />

TCAM2 cell line, in order to determine its homogeneity and to identify<br />

any cellular sub populations.<br />

Materials and methods. TCAM2 cells were streaked onto suprasil microscope<br />

slides and either air dried or dessicated. Raman spectra were<br />

obtained using the Horiba LabRAM ARAMIS system. After determination<br />

of the optimal analytical settings, a map consisting of a 200 spectral<br />

array was obtained from 20 cells/grouping. A further 200 cells/<br />

grouping were assessed using duoscan providing an overall spectral<br />

average of the cells’ constituents. Beyond broad peak assignments, spectra<br />

were further analysed using Principal Component Analysis (PCA),<br />

Clustering Methods, Sparsity Separation and Harmonic Analysis. Results<br />

were compared to control spectra obtained from the previously<br />

characterised mouse embryonic fibroblast cell line.<br />

Results. Overall spectral accumulations showed the assessed TCAM2<br />

cells to possess one of three distinct patterns. Closer examination of<br />

peak distribution and relative size indicated that although there were<br />

similarities in the spectra differences were prominent in Raman shifts<br />

in the 809, 1002, 1032, 1450 and 1608 cm−1 regions. Desiccated samples<br />

did not differ substantially from the air dried samples indicating that<br />

Raman vibrations were not influenced by the presence/absence of water.<br />

Comparisons with spectra obtained from mouse embryonic fibroblasts<br />

showed distinct differences.<br />

Conclusions. Our findings of three differing spectral fingerprints is suggests<br />

that TCAM2 comprise three differing cell populations and adds<br />

further credence to the proposal that the cell line is not homogeneous<br />

but is made up of seminoma cells, apoptotic cells and differentiated embryonic<br />

carcinoma cells.<br />

0086<br />

Patient education for radical prostatectomy: Physician’s point of<br />

view of multimedia support vs. standard procedure<br />

*A . Ihrig1 , J . Huber2 1Universitätsklinik Heidelberg, Klinik für Allgemeine Innere Medizin und<br />

Psychosomatik, Heidelberg, Deutschland, 2Universität, Urologische Klinik,<br />

Heidelberg, Deutschland<br />

Objective. Objective of this study is to assess physician’s point of view of<br />

multimedia support in preoperative patient education for radical prostatectomy.<br />

Methods. Eight physicians educated more than two hundred patients<br />

for radical prostatectomy randomized either multimedia supported or<br />

with standard procedure. We interviewed the physicians to assess their<br />

point of view concerning possible advantages and differences.<br />

136 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Results. All physicians rated multimedia supported education significantly<br />

better than standard procedure. Main reasons were better comprehensibility,<br />

the visual presentation, and greater ease in explaining<br />

complex issues. Objective time measurement showed no difference<br />

between both educations. Nevertheless major disadvantage was the impression<br />

that multimedia supported education lasted longer. Moreover,<br />

physicians had the impression that some details could be further improved.<br />

Given the choice, every physician would decide for multimedia<br />

support.<br />

Conclusion. Physicians appreciate multimedia support in preoperative<br />

education. Contrary to their impression, multimedia support does not<br />

prolong patient education. Therefore, patients and physicians likewise<br />

profit from multimedia support for education and counseling. The readiness<br />

of physicians is a possible obstacle to this improvement, as their<br />

view is a key factor for the transition to everyday routine. Therefore, our<br />

results could alleviate this possible barrier for establishing multimedia<br />

supported education in clinical routine.<br />

0091<br />

Patho-histological correlation of MRI findings with the results<br />

of biopsies and radical prostatectomies in MRI-guided prostate<br />

biopsy at 1.5T<br />

*D .G . Engehausen1 , K . Engelhard2 1Universitätsklinikum Erlangen, Urologische Klinik, Erlangen, Deutschland,<br />

2Martha Maria Krankenhaus Nürnberg, Abteilung für Radiologie, Nürnberg,<br />

Deutschland<br />

Introduction. In diagnostic management of patients with elevated or raising<br />

PSA levels the described method offers a reasonable alternative to a<br />

repeated systematic multi-site TRUS guided prostate biopsy. Purpose is<br />

to investigate the diagnostic valency of MRI-guided biopsy in detecting<br />

and localizing prostate cancer.<br />

Method and materials. 65 patients with elevated PSA levels (PSA>4 ng/<br />

ml, mean 10.6 ng/ml) and episodes of prior tumor negative TRUS-guided<br />

biopsies (1–5, mean 1.6) underwent MRI-guided prostate biopsy in<br />

a 1.5T scanner (Magnetom Espree, Siemens Healthcare, Erlangen). Localization<br />

of tumor suspected areas was done with an endorectal and<br />

two body-phased array coils using a T2-weighted TSE sequence, a diffusion<br />

weighted (DWI) protocol inclusive an ADC-map and a gadolinium<br />

contrast enhanced 3D-gradient echo sequence. After removing the<br />

endorectal coil the biopsy device was inserted into the rectum and 2 to<br />

6 (mean 4.5) core biopsies were taken manually in a supine position of<br />

the patient. A patho-histological correlation was done between tumor<br />

suspected MRI areas and biopsy results of these regions. In 23 men with<br />

radical prostatectomy following cancer diagnosis each of 104 tumor<br />

containing biopsy cores of the suspected regions was correlated with<br />

the sites of tumor location in the pathological specimens.<br />

Results. All tumor-suspected areas could be successfully punctured.<br />

Prostate cancer was found in 43%, benign prostate hyperplasia (BPH) in<br />

66%, prostatitis in 38% and normal prostate tissue in 5%. With respect<br />

to cancer depiction MRI-guided biopsy showed a sensitivity, specificity,<br />

accuracy, negative and positive predictive value of 75%, 100%, 86%, 100%<br />

and 75% respectively. With reference to the correlation of tumor localization<br />

in the pathological specimens and biopsy sides in MRI of tumor<br />

containing biopsy cores a sensitivity of 96%, a specificity of 98%, an<br />

accuracy of 97% could be demonstrated. The negative predictive value<br />

was 96% by a positive predictive value of 98%. In 9 patients with at first<br />

tumor negative MRI-guided biopsy results cancer was found in follow<br />

up over 26 months by TRUS-guided biopsy or transurethral resection<br />

(TUR).<br />

Conclusion. MRI-guided prostate biopsy is suitable and accurate in detecting<br />

and localizing prostate cancer, missing a rest of tumors which<br />

can only be diagnosed in clinical follow up.


0106<br />

MicroRNAs in renal cell carcinoma: Diagnostic implications of<br />

serum miR-1233 levels<br />

*J . Ellinger1 , L .M . Wulfken1 , R . Moritz2 , C . Ohlmann3 , S . Holdenrieder4 ,<br />

V . Jung3 , F . Becker3 , E . Herrmann2 , G . Walgenbach-Brünagel4 , A . von Ruecker5<br />

, S . Müller1,5 1Universitätsklinikum Bonn, Klinik und Poliklinik für Urologie und Kinderurologie,<br />

Bonn, Deutschland, 2Universitätsklinikum Münster, Klinik und<br />

Poliklinik für Urologie, Münster, Deutschland, 3Universitätsklinikum des<br />

Saarlandes, Klinik und Poliklinik für Urologie, Homburg/Saar, Deutschland,<br />

4Universitätsklinikum Bonn, Institut für Klinische Chemie und Klinische<br />

Pharmakologie, Bonn, Deutschland, 5Universitätsklinikum Bonn, Institut für<br />

Pathologie, Bonn, Deutschland<br />

Objective. MicroRNA expression is altered in cancer cells, and microR-<br />

NAs could serve as diagnostic/prognostic biomarker for cancer patients.<br />

Our study was designed to analyze circulating serum microRNAs<br />

in patients with renal cell carcinoma (RCC).<br />

Methods. We first explored microRNA expression profiles in tissue and<br />

serum using TaqMan Low Density Arrays in each six malignant and benign<br />

samples. The findings were validated using quantitative real-time<br />

PCR (TaqMan MicroRNA Assays).<br />

Results. The Low Density Arrays identified 109 microRNAs circulating<br />

at higher levels in cancer patients’ serum, and 36 microRNAs were upregulated<br />

in serum and tissue of RCC patients. Seven candidate microRNAs<br />

were selected for verification based on the finding of up-regulation<br />

in serum and tissue of RCC patients (analysis of miR-7-1*, miR-93,<br />

miR-106b*, miR-210, miR-320b, miR-1233 and miR-1290 levels in serum<br />

of healthy controls (n=30) and RCC (n=33) patients). miR-1233 was increased<br />

in RCC patients, and thus validated in a multicentre cohort of<br />

84 RCC patients and 93 healthy controls (sensitivity 77.4%, specificity<br />

37.6%, AUC 0.588). We also studied 13 samples of patients with angiomyolipoma<br />

or oncocytoma, whose serum miR-1233 levels were similar<br />

to RCC patients. Circulating microRNAs were not correlated with clinical-pathological<br />

parameters.<br />

Conclusions. MicroRNA levels are distinctly increased in cancer patients,<br />

although only a small subset of circulating microRNAs has a<br />

tumor-specific origin. We identify circulating miR-1233 as a potential<br />

biomarker for RCC patients.<br />

0138<br />

The accreditation of an interdisciplinary prostate cancer centre:<br />

a survey among regional urologists<br />

*J . Kramer1 , D . Baumunk1 , A . Magheli1 , C . Stephan1 , M . Schostak1 , K . Miller1 ,<br />

S . Weikert1 1Charité – Universitätsmedizin <strong>Berlin</strong>, Urologie, <strong>Berlin</strong>, Deutschland<br />

Introduction. Interdisciplinary Prostate <strong>Cancer</strong> Treatment Centres<br />

(IPC) according to the criteria of <strong>German</strong> <strong>Cancer</strong> Society (DKG) aim at<br />

improving the quality of care for prostate cancer patients. The perception<br />

of such treatment centres among regional urologists is unknown.<br />

We report the results of a survey among urologists of the region 2 years<br />

after accreditation of the Charité <strong>Berlin</strong> IPC.<br />

Methods. Two years after the DKG accreditation an anonymous survey<br />

was conducted among the outpatient urologists of the region. The<br />

effects of the IPC accreditation on the quality of the treatment, the intersectional<br />

cooperation and the admission policy of the urologists were<br />

evaluated. Moreover, the acceptance of the centre’s medical education<br />

program and adherence to treatment recommendations were studied.<br />

The survey was based on questions applying the Likert scale for measurements<br />

of personal views.<br />

Results. A total of 134 urologists of the region were asked to take part<br />

in the survey. Of these, 61 (46%) completed the questionnaire. IPCs accredited<br />

by the DKG are generally well accepted by the majority (n=40,<br />

66%) of the queried urologists. However, only 17 (28%) confirmed im-<br />

provements in the intersectional cooperation between outpatient and<br />

hospital urologists, while 36% refused this fact and 36% were unsure.<br />

Only 18 (30%) experienced a higher quality of the patient care following<br />

the IPC accreditation, but 20 (33%) neglected this explicitly. As few as 16<br />

(26%) changed their admission policy in favour of the centre, and 11%<br />

admitted fewer patients to the IPC. For the remaining 46% the accreditation<br />

of the IPC had no impact on their admission policy. The majority<br />

of the interviewed urologists regularly made use of the medical education<br />

offered by the centre. Only 16 (26%) never participated in educational<br />

activities of the centre. The work of the centre in general was rated<br />

“good” or “very good” by the majority, but 8% still felt the work to be<br />

“inadequate”. The majority of urologists (77%) adhered to the treatment<br />

recommendations given by the centre, while only 8% neglected to do so.<br />

Conclusion. IPC’s in general are well accepted among urologist of the<br />

outpatient sector. However, improvements of the quality of care were<br />

not observed by the queried urologists and consequently the accreditation<br />

of the IPC had no relevant impact on the admission rate. IPC may<br />

facilitate evidence based treatment for prostate cancer through educational<br />

activities and treatment recommendations.<br />

0142<br />

Timing of catheter removal after radical retropubic prostatectomy<br />

(RRP): Has delayed catheter removal due to anastomotic<br />

leakage adverse effects on early continence?<br />

*P .J . Olbert1 , K . Simonis1 , A . Hegele1 , R . Hofmann1 1Universitätsklinikum Giessen und Marburg GmbH, Standort Marburg,<br />

Klinik für Urologie und Kinderurologie, Marburg, Deutschland<br />

Introduction. Early catheter removal within the first week is a common<br />

strategy in the postoperative management after RRP. Patient convenience<br />

is increased, however, the patients expectations as well. In case<br />

of anastomotic leakage, catheter removal is usually delayed for 1 to<br />

2 weeks, and many patients are concerned about detrimental effects of<br />

later catheter removal, especially in terms of continence. This work was<br />

conducted to compare early continence in patients with early vs. delayed<br />

catheter removal in cases of anastomotic leakage.<br />

Patients and methods. 128 consecutive patients have been evaluated<br />

prospectively between Jan. and November 2008. In 70% of patients, the<br />

catheter was removed on POD5 or 6 after documentation of a sufficient<br />

vesicourethral anastomosis by cystogram. In 30%, the cystogram revealed<br />

anastomotic leakage. In these patients, the catheter was removed 1<br />

or 2 weeks later, depending on the extent of the paravasation. Early continence<br />

was assessed before hospital discharge (in average 3 days after<br />

catheter removal) and after 3 months by a standardized Pad-Test and<br />

documentation of Pads needed/24 h.<br />

Results. The standardized PAD test showed comparable results postoperatively<br />

(17 vs. 12 g) and after 3 months (2.5 vs. 2.7 g). The number of pads<br />

needed/24 h was 3.2 vs. 3.5/24 h at hospital discharge and 2,3 vs. 4,0/24 h<br />

at 3 months. The differences detected were not statistically significant.<br />

The portion of patients needing 0 and 1 pads/24 h was 28 vs. 7% postoperatively<br />

and 40 vs. 25% at 3 months in favor of the early catheter removal<br />

cohort. This difference reached statistical significance (p


Abstracts<br />

0155<br />

Percentage of positive nodes after radical prostatectomy and<br />

pelvic lymphadenectomy: correlation with oncological outcome<br />

measures<br />

*P .J . Olbert1 , J . Hoffmann1 , F . Brüning1 , A . Hegele1 , R . Hofmann1 1Universitätsklinikum Giessen und Marburg GmbH, Standort Marburg,<br />

Klinik für Urologie und Kinderurologie, Marburg, Deutschland<br />

Introduction. Lymphadenectomy is an integral part of oncological surgery<br />

in many tumor entities. In prostate cancer (PC), pelvic lymphadenectomy<br />

gives essential staging- and prognostic information and might<br />

trigger adjuvant therapy. In low volume lymph node involvement, it<br />

can be curative as well with excellent long term survival data. However,<br />

the body of evidence is limited as far as lymphadenectomy in low risk<br />

patients and the extent of lymphadenectomy are concerned. This work<br />

was conducted to evaluate whether the number of removed nodes and<br />

lymph node density could serve as prognosticators after radical protatectomy.<br />

Patients and methods. The institutional PC database was evaluated for<br />

classical clinical and pathological data (age, pTNM-stage, preoperative<br />

PSA and Gleason grading) and for the numbers of all removed lymph<br />

nodes and of lymph node metastases. Lymphadenectomy included external<br />

iliac, obturator fossa and hypogastric nodes. χ2 and Mann Whitney<br />

U test were performed to compare sets of variables, multivariate<br />

regression analysis was used to evaluate the influence of other parameters<br />

on lymph node status. Kaplan Meier curves and log rank tests were<br />

done to display and compare time-event correlations.<br />

Results. 914 patients were included in the analysis, 10.8% were node positive.<br />

Mean Follow up was 51 months. The presence of lymph node metastases<br />

was independently predicted by T-stage, Gleason score and initial<br />

PSA. N-stage was significantly associated with biochemical Progression<br />

and with reduced cancer specific survival, but not with OS. In our patient<br />

cohort and in the given follow up, a higher lymph node yield was<br />

associated with better progression free and overall survival, without<br />

reaching statistical significance. In N+ patients, lymph node density did<br />

not affect survival, nor did the presence of extranodal tumor growth.<br />

Conclusions. Within the limitations of this retrospective study (mid<br />

term FU, consequently low number of events), the total number of removed<br />

lymph nodes appears to be more important than the ratio of<br />

affected nodes in N+ patients. This implicates a pivotal role of pathologically<br />

undetected lymph node metastases and supports the concept of<br />

extended lympadenectomy in intermediate to high risk patients. More<br />

prospective studies on lymphadenectomy in PC are warranted.<br />

0170<br />

Family history of prostate cancer and psychosocial distress in<br />

affected men<br />

*K . Herkommer1 , A . Dinkel2 , M . Kornmayer1 , P . Herschbach2 , J . Gschwend1 1Klinikum rechts der Isar der TU München, Klinik für Urologie, München,<br />

Deutschland, 2Klinikum rechts der Isar der TU München, Klinik für Psychosomatik<br />

und Psychotherapie, München, Deutschland<br />

Objective. Positive family history is a strong risk factor for the development<br />

of prostate cancer (PC). Thus, it seems reasonable that patients<br />

with a familial history of prostate cancer might worry about passing<br />

their disease to their kin, which might lead to the experience of distress.<br />

This study aimed at investigating the effect of family history of prostate<br />

cancer on psychosocial distress in affected men.<br />

Material and methods. Nationwide 3527 patients who were treated<br />

with radical prostatectomy between 2000 and 2005 were included in<br />

this study and completed a mail survey in 2009. Mean current age<br />

was 71.2 years (SD=6.5; range 45–92). The patients were divided into 3<br />

subgroups according to their family history: 68.0% (n=2.399) sporadic,<br />

25.9% (n=915) familial (at least one first-degree relative with PC), and<br />

6.1% (n=213) hereditary (according to the Johns Hopkins criteria). Can-<br />

138 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

cer-specific distress was assessed with the Questionnaire on Distress in<br />

<strong>Cancer</strong> Patients – Short Form (QSC-R10), depression and anxiety were<br />

assessed with a short form of the Patient Health Questionnaire (PHQ-2,<br />

GAD-2). We investigated the influence of family history, age at diagnosis<br />

(


0220<br />

Evaluation of CEA and Ca19-9 in transitional cell carcinoma of the<br />

bladder – serological and immunhistological findings<br />

*A . Hegele1 , V . Mecklenburg1 , P . Barth1 , P . Olbert1 , R . Hofmann1 1Philipps Universität, Klinik f . Urologie, Marburg, Deutschland<br />

Introduction and objectives. Following prostate cancer bladder cancer<br />

represents the second most frequent malignancy of the GU tract and the<br />

ninth most common cause of cancer worldwide with rising incidence.<br />

Since reliable markers predicting presence, muscle invasiveness or metastatic<br />

TCC have not been established up to now, cystoscopy, causing<br />

discomfort to the patients (pat), represents still the goldstandard in diagnosis<br />

of TCC. The aim of the present study was to evaluate the clinical<br />

value of CEA and Ca19-9 as a tumor marker in the diagnosis of TCC<br />

and to determine the relationship between the marker levels and the<br />

histopathological results.<br />

Material and methods. Between 06/2008 and 02/2010 CEA and Ca19-9<br />

were prospectively determined in 231 pat (173 m, 58 f, mean age 70 y) before<br />

undergoing TUR-B of a suspect bladder tumor. Additionally 11 pat<br />

(9 m, 2 f, median age 66 y) were presented initially with metastatic TCC.<br />

Immunhstochemical examinations (CEA and Ca19-9 staining) were<br />

performed in TUR-B specimens of 83 pat.<br />

Results. After TUR-B no malignant bladder tumors were found in<br />

71 pat. These pat served as controls. 14 pat with malignant bladder tumors<br />

but histological excluded TCC were excluded from analysis. In 146<br />

pat histological examination showed TCC: 74% (n=108) with superficial,<br />

non-muscle invasive (NMIBC) and 26% (n=38) with muscle-invasive<br />

(MIBC) bladder cancer. Compared to controls pat with TCC showed<br />

neither significant different CEA (p=0.234) nor Ca19-9 (p=0.061) levels.<br />

Pat with MIBC (n=38) showed significant elevated CEA (p=0.008) and<br />

Ca19-9 serum levels (p>0.001) compared to NMIBC (n=108). In local<br />

advanced MIBC and/or presence of lymph node metastases (≤pT3±N+,<br />

n=19) only Ca19-9 was significantly elevated (p=0.04) compared to<br />

MIBC confined on the bladder muscle (pT2No, n=19). Concerning<br />

TCC-grading significant higher CEA (p=0.031) and Ca19-9 (p=0.001)<br />

serum levels were found with rising grading. Pat with metastatic TCC<br />

showed compared to non-metastatic TCC the highest serum levels of<br />

Ca19-9 (p=0.003) but not for CEA (p=0.105). Immunhistochemical staining<br />

in 83 patients revealed a strong correlation between staining intensitiy<br />

and serum levels for Ca19-9 (p=0.004) but not for CEA (p=0.478)<br />

Conclusion. In conclusion our prospective data clearly show that neither<br />

CEA nor Ca19-9 serum levels are helpful tools in primary diagnosis<br />

of TCC. When during routine examination CEA and Ca19-9 levels are<br />

elevated and a gastrointestinal malignancy can be excluded you have to<br />

keep in mind existence of CEA/Ca-19-9 producing TCC and consecutively<br />

to check the urologic tract. Our date show a correlation of CEA<br />

and Ca19-9 serum levels with stage and grade of TCC disease confirmed<br />

by immunhistochemical findings. Ca19-9 is more promising as CEA.<br />

Utility of Ca19-9 serum levels monitoring response to therapy have to<br />

be checked in further studies as well as role of Ca19-9 as a prognostic<br />

factor in TCC.<br />

0225<br />

Influence of prostate volume on oncological and clinical outcome<br />

after radical prostatectomy due to prostate cancer<br />

*A . Hegele1 , T . Laumeier1 , F . Brüning1 , P . Olbert1 , R . Hofmann1 1Philipps Universität, Klinik f . Urologie, Marburg, Deutschland<br />

Introduction. Enlarged prostate volumes (PV) aggravate radical surgery<br />

in prostate cancer (f. e. radical prostatectomy). How far PV influence R1resection<br />

and clinical outcome after radical prostatectomy is unclear.<br />

Aim of this study was to investigate the possible relationship between<br />

PV and intra-, post- and pathological parameters after radical retropubic<br />

prostatectomy (RRP).<br />

Materials and methods. Between 01/2007 and 06/2010 RRP was performed<br />

in 454 men. Data were analyzed using the data bank of the “Prostate<br />

<strong>Cancer</strong> Center” Marburg.<br />

Results. Median PV was 59.4 g (20–209). Due to R2-resection 2 patients<br />

were excluded from analyses. Patients with a R1-resection (n=91, 20%)<br />

showed compared to R0-resection (n=361, 79,6%) a significantly lower<br />

PV (54 g vs. 60 g, p=0.048). PV>60 g (n=168) showed significantly elevated<br />

iPSA (p


Abstracts<br />

0250<br />

Prediction of favourable outcome in metastatic castration-resistant<br />

prostate cancer patients treated with docetaxel rechallenge<br />

*M . Heck1 , M . Thalgott1 , M . Retz1 , P . Wolf2 , T . Maurer1 , J . Gschwend1 ,<br />

H . Kübler1 1Technische Universität München, Urologische Klinik, Klinikum rechts der<br />

Isar, München, Deutschland, 2Technische Universität München, Institut für<br />

Medizinische Statistik und Epidemiologie, München, Deutschland<br />

Objective. Chemotherapy with docetaxel is the standard first-line cytotoxic<br />

treatment in metastatic castration-resistant prostate cancer<br />

(mCRPC). In patients with good clinical response at first-line chemotherapy,<br />

docetaxel rechallenge has been proposed for further treatment.<br />

In the present study, we analysed the effectiveness of docetaxel rechallenge<br />

and sought to identify clinical variables predicting favourable oncological<br />

outcome.<br />

Patients and methods. We retrospectively evaluated the outcome of<br />

44 patients with mCRPC who were treated with 3-weekly docetaxel at<br />

first-line chemotherapy and rechallenge plus prednisone/ prednisolone<br />

between 1999 and 2011. All patients received at least 2 cycles of docetaxel<br />

rechallenge. The endpoints were PSA-progression-free survival (PSA-<br />

PFS), overall survival (OS). Furthermore, we analysed the impact of pretreatment<br />

variables on PSA-PFS and OS. Median PSA-PFS and OS were<br />

determined by Kaplan-Meier curves. The effect of clinical variables on<br />

PSA-PFS and OS was statistically analysed by a log-rank test or Cox<br />

regression with hazard ratios. All analyses were performed using a 0.05<br />

level of significance.<br />

Results. 44 patients were included on analysis. At a median follow-up<br />

of 26.4 months (range 9.8–89.8 months) after the first administration<br />

of docetaxel, 24 (54.5%) patients had died. Median PSA-PFS was<br />

5.9 months (95% CI 3.5–6.8 months) and median OS was 21.8 months<br />

(95% CI 19.9–23.7 months) after initiation of docetaxel rechallenge.<br />

36 patients achieved PSA-reduction ≥50% at first-line chemotherapy.<br />

Out of these 10 (27.8%) patients also responded with PSA-reduction<br />

≥50% at docetaxel rechallenge. PSA-reduction ≥50% at first-line chemotherapy<br />

with docetaxel was the only pre-treatment variable that correlated<br />

significantly with prolonged PSA-PFS (p=0.01) and OS (p=0.03).<br />

Patients with PSA-reduction ≥50% at first-line chemotherapy showed a<br />

median OS of 22.1 months since initiation of docetaxel rechallenge in<br />

comparison to 7.2 months in patients with


in young RARC compared to ORC patients (16 [8–25] vs. 22 [10–116],<br />

p=0.018). Transfusion rate was lower in RARC patients (0 [0–4] vs. 2<br />

[0–12] PRBC intraoperative, p=0.038) while no difference in blood loss<br />

was observed. Neither in the analysis of the whole groups nor subgroup<br />

analysis revealed differences in the rate of postoperative complications.<br />

Conclusions. Despite prolonged operation time, especially older patients<br />

seem to profit from RARC (faster reconvalescence, lower blood loss).<br />

Restricting new operation techniques to the young and fit might underestimate<br />

the advantages of these techniques. Further prospective<br />

validation of these results is needed, e.g. within multi-centric databases.<br />

0289<br />

Clinical outcome of combined Iodine-125 seed brachytherapy<br />

and image-guided intensity modulated external-beam radiotherapy<br />

for low intermediate risk prostate cancer<br />

*J . Boda-Heggemann1 , G . Welzel1 , S . Mohamed1 , M . Bohrer1 , *Y . Abo Madyan1<br />

, M . Polednik1 , M .-S . Michel1 , J . Schaefer1 , J . Kosakowski1 , N . Behnam1 ,<br />

F . Wenz1 1Universtiät Medizin Mannheim, Strahlentherapie, Mannheim, Deutschland<br />

Purpose. Combination of low-dose rate (LDR) brachytherapy and external-beam<br />

radiotherapy (EBRT) has been shown to be a promising<br />

treatment modality in low intermediate risk prostate cancer. We retrospectively<br />

assessed clinical outcome, acute and late toxicity of combined<br />

image-guided intensity-modulated EBRT with Iodine-125 seed implantation<br />

for low intermediate risk prostate cancer (patients with one parameter<br />

violating the criteria for low risk disease).<br />

Patients and Methods. Between 2004 and 2009, 25 consecutive low<br />

intermediate risk prostate cancer patients (median age 66 years, median<br />

initial PSA 6.5 mg/dl, median Gleason-score 7) received LDR-brachytherapy<br />

with Iodine-125-seed implantation (120 Gy MPD) followed by<br />

IG-IMRT (image-guided intensity modulated radio therapy) with a<br />

median dose of 45 Gy. Image guidance was performed with stereotactic<br />

ultrasound and cone-beam CT. Primary end points of this retrospective<br />

evaluation were overall survival (OS), biochemical disease free survival<br />

(BDFS), acute and chronic gastrointestinal (GI) and genitourinary (GU)<br />

toxicity based on RTOG and LENT-Soma scales. Both acute and late<br />

toxicity were compared to pre-radiation symptoms (graded by LENT-<br />

Soma scores) on a patient-to-patient basis.<br />

Results. Median follow-up (FU) was 42 months. Except one patient,<br />

who died of a glioblastoma multiforme 49 months after radiotherapy,<br />

all patients are alive. Actuarial 2-year and 4-year BDFS rates were 95.8%<br />

and 91%, respectively. Two patients did not reach an adequate PSA-nadir<br />

and received further therapy. The only statistically significant risk<br />

factor for biochemical relapse was the value of PSA nadir (p=0.007).<br />

Before therapy, no GI symptoms higher >2 in any patient were observed,<br />

maximal level of GU symptoms was LENT-Soma °2 in 3 patients.<br />

Two patients had complete erectile dysfunction (°4) and 2 patients had<br />

a °2 prae-therapeutic erectile dysfunction. In the acute phase, maximal<br />

GI/GU toxicity was RTOG °2. At the end of IMRT treatment, 3 patients<br />

had RTOG °2 GU toxicity, and 5 patients had RTOG °2 GI toxicity. At<br />

the first FU (median: 6 weeks after IMRT), 7 patients had RTOG °2 GU<br />

toxicity, and 2 patients had RTOG °2 GI toxicity. Maximal late GI toxicity<br />

at last FU (median 39 months, range 8-70 months) was LENT-Soma<br />

°2 in 8 patients, and GU toxicity °3 and °4 in 1 patient each. By last FU,<br />

2 patients suffered °2, 9 patients °3 and 7 patients °4 erectile dysfunction.<br />

Conclusions. Iodine-125 seed brachytherapy in combination with imageguided<br />

IMRT is an effective and low-toxicity treatment option for low<br />

intermediate risk prostate cancer patients. The only significant toxicity<br />

observed is erectile dysfunction. The rate compares favorably to literature<br />

data after surgery and high dose EBRT.<br />

0315<br />

Two clinical trials assessing safety and efficacy of trastuzumab<br />

(Herceptin) as a monotherapy or in combination with gemcitabine/cisplatin<br />

in patients with metastasized urothelial cell<br />

carcinoma overexpressing HER2<br />

U . Rebmann1 , T . Klotz2 , *G . Melhorn1 1Diakonissenkrankenhaus Dessau, Urologische Klinik, Dessau, Deutschland,<br />

2Klinikum Weiden, Urologische Abteilung, Weiden, Deutschland<br />

Background. Prognosis for invasive urothelial cell carcinomas (UCC) is<br />

poor. Since HER2 is overexpressed in about 30% of patients, two clinical<br />

trials assessed Trastuzumab (T) treatment in patients with metastasized<br />

urothelial cell carcinomas overexpressing HER2.<br />

Methods. Patients (pts) with HER2 overexpression (score 2+ or 3+)<br />

UCC, ECOG performance status 0–2, at least one measurable lesion,<br />

and adequate organ function. Trial ML17599 included pts with tumor<br />

progression after previous platinum-based chemotherapy. T monotherapy<br />

with initial dose of 4 mg/kg T, weekly maintenance dose of 2 mg/kg<br />

was given until progression or intolerable toxicity. Trial ML17600 included<br />

chemotherapy naïve pts. T (4 mg/kg loading dose, 2 mg/kg weekly)<br />

was given in combination with gemcitabine (1200 mg/m2 on day 1, 8<br />

and 15) and cisplatin (70 mg/m2 on day 2). After 6 cycles, T maintenance<br />

continued until progression or toxicity. The primary endpoint was progression-free<br />

survival (PFS) for both studies.<br />

Results. Both trials were prematurely terminated due to low recruitment.<br />

ML17599: 5 pts were included. The median age was 66 years, all<br />

pts were male. There were 2 pts with HER2 score 2+ and 3 pts with score<br />

3+. Median PFS was 2.5 months and median overall survival (OS)<br />

14.7 months. One patient achieved stable disease, resulting in an OS of<br />

39 months. Most adverse events (AEs) were of mild to moderate severity.<br />

Only one pt experienced grade 3 toxicity (dyspnea). ML17600: 13 patients<br />

were included (10 male, 3 female pts). The median age was 69 years.<br />

There were 8 pts with HER2 score of 2+ and 5 pts with score 3+. Median<br />

PFS was 11.0 months and median OS 14.9 months. 5 pts achieved a response<br />

(2/13 complete response, 3/13 partial response), and 6/13 pts had<br />

stable disease, resulting in a clinical benefit rate of 84.6%. Hematological<br />

toxicities grade 3/4 occurred in 9 pts (69.2%). Other grade 3/4 toxicities<br />

included cardiac arrhythmia in 2 pts, constitutional symptoms in 2 pts<br />

and hypertension in 1 pt.<br />

Conclusion. As a result of low patient numbers in both trials, it is not<br />

possible to make a general statement about the efficacy of T either as<br />

a monotherapy or in combination with chemotherapy in patients with<br />

metastasized UCC. Some patients may benefit from well tolerated monotherapy.<br />

For combination therapy, response rate, PFS and OS appear<br />

to be higher.<br />

0327<br />

MARC-2: An open label, single arm trial to characterize patients<br />

with metastatic renal cell carcinoma treated with everolimus<br />

after failure of the first VEGF-targeted therapy<br />

M . Staehler1 , L . Bergmann2 , V . Grünwald3 , U . Keilholz4 , C .-H . Ohlmann5 ,<br />

F . Schaller6 , *L . Strassl6 , K . Junker7 1Ludwig-Maximilians-Universität München Klinikum Großhadern, Urologische<br />

Klinik und Poliklinik, München, Deutschland, 2Johann-Wolfgang Goethe<br />

Universitätsklinikum, Frankfurt, Deutschland, 3Medizinische Hochschule<br />

Hannover, Hannover, Deutschland, 4Charitè Campus Benjamin Franklin,<br />

<strong>Berlin</strong>, Deutschland, 5Universitätsklinikum des Saarlandes, Homburg/Saar,<br />

Deutschland, 6iOMEDICO AG, Freiburg, Deutschland, 7Universitätsklinikum Jena, Jena, Deutschland<br />

Introduction. Clinical research in metastatic renal cell carcinoma is ongoing<br />

and the number of treatment options is going to increase. Characterization<br />

of patients most likely to benefit from a specific targeted agent<br />

has not yet been sufficiently addressed. Most patients are treated with<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

141


Abstracts<br />

sequenced systemic medications based on the clinical course of the disease.<br />

So far, no reliable biomarkers exist to predict treatment outcome<br />

of the selected regimen in the individual patient. Thus, further investigation<br />

is needed to understand the treatment outcome and effects of<br />

the selected drugs in vivo. In the MARC-2-study, patients treated with<br />

everolimus will be characterized by serum and tissue markers in order<br />

to identify a pattern which could be suggestive of treatment outcome of<br />

everolimus after one VEGF-targeted therapy.<br />

Methods. Over a period of 2 years 80 patients are to be enrolled at about<br />

12 study centers in <strong>German</strong>y. Major inclusion criteria are confirmed<br />

predominantly clear cell renal cell carcinoma, metastatic disease, failure<br />

of exactly 1 prior VEGF-TKI therapy, no pretreatment with mTOR<br />

inihibitors or bevacizumab. Tumor response will be assessed according<br />

to RECIST 1.1. Safety assessments include recording adverse events and<br />

monitoring of laboratory parameters. Primary objective is to assess<br />

the rate of patients free of disease progression after 6 months of treatment<br />

with everolimus. Secondary objectives are assessment of relation<br />

of biomarkers to the clinical benefit, progression free survival, overall<br />

survival, objective response rate and the safety profile. Part of MARC-<br />

2 are extensive explorative assessments: Blood samples for biomarker<br />

projects are taken pre-treatment and at different time points during the<br />

treatment until the end of study treatment. Histopathological classification<br />

of tumor samples will be performed. Biomarker projects include:<br />

Serum protein profiling by using SELDI-TOF-MS; quantification of<br />

Treg cells in blood samples; identification of serum metabolic biomarkers;<br />

polymorphisms in genes related to the VEGFR signaling pathway;<br />

expression analysis of the mTOR-pathway in tumor samples. Pre-dose<br />

blood samples for everolimus trough levels will be collected for pharmacokinetics.<br />

Tumor assessments by functional MRI will be performed<br />

within a substudy at selected sites.<br />

Results. MARC-2 was initiated in <strong>February</strong> 2011; the 1st patient was<br />

enrolled in March 2011. Until July 2011, 9 sites have been initiated and<br />

9 patients were recruited.<br />

0369<br />

Perioperative outcome in laparoscopic and da Vinci assisted<br />

partial nephrectomy in tumours >4 cm<br />

*H . Zenginli1 , M . Giessing1 , P . Albers1 , R . Rabenalt1 1Uniklinik Düsseldorf, Urologie, Düsseldorf, Deutschland<br />

Background. EAU Guidelines recommend partial nephrectomy as standard<br />

treatment for renal tumours smaller than 4 cm. Data on outcome<br />

up to date is rare and needs to be elucidated in further studies. We present<br />

the results of our series of laparoscopic (LPN) and da Vinci assisted<br />

partial nephrectomy (daViPN) in kidney tumours larger than 4 cm.<br />

Objective. To analyze the outcome regarding technical feasibility, morbidity,<br />

mortality, efficacy and complicationrate of LPN and daViPN for<br />

tumours ≥4 cm.<br />

Methods. In total, 190 patients were treated for renal tumours at our institution<br />

from 08/2008 through 03/2011. In 61 patients, elective LPN and<br />

5 da Vinci assisted partial nephrectomies (01/2011 through 03/2011) were<br />

performed. Patients were grouped according to tumour size: group A<br />

(40 patients) with tumours


litaxel. In addition to the MDR1-phenotype the polymorphisms in the<br />

MDR1-gene contributes to drug resistance. Therefore, after analyzing<br />

the MDR1-phenotype we defined the polymorphisms in the MDR1-gene<br />

C3435T, G2677T and G1199A in a model of two chromophobe RCC<br />

cell lines (chrompho-A and -B) with an „intrinsic paclitaxel resistance”<br />

and a model of two RCC cell lines of the clear cell type (clearCa-21sens<br />

and clearCa-21res) with an „acquired paclitaxel resistance”.<br />

Methods. MTT-Assay, RT-PCR, Rhodamin-efflux-assay, flow cytometry,<br />

DNA-sequencing.<br />

Results. 1.) After exposure to paclitaxel the model with the intrinsic resistance<br />

showed an IC50 of 0,08 µM in the paclitaxel-sensitive chrompho-A<br />

and 387,5 µM in the paclitaxel-resistent chrompho-B whereas in<br />

the acquired model an IC50 of 0,38 µM in clearCa-21sens and >1000 µM<br />

in clearCa-21res was detected by MTT-assay. In all cell lines exposure<br />

to paclitaxel in combination with curcumin resulted in an additive<br />

growth inhibitory effect. 2.) It has been proven on mRNA-level that Pglycoprotein<br />

(P-gp) was expressed in all cell lines. 3.) By flow cytometry<br />

an amount of 18% ±2 of P-gp positive cells in chrompho-A and 30% ±3<br />

P-gp positive cells in chrompho-B was detected while the clear cell lines<br />

have a comparable amount of P-gp positive cells in clearCa-21sens<br />

(41% ±2) and in clearCa-21res (42,5% ±1). 4.) The functionality of P-gp<br />

was detected in all cell lines by Rhodamin-efflux-assay whereas in the<br />

cell line clearCa-21res an eight-fold higher efflux than in the cell line<br />

clearCa-21sens became evident. 5.) Analyzing the polymorphisms in<br />

the MDR1-gene in untreated cells the “silent” C3435T polymorphism is<br />

evident in both models. The intrinsic model showed the G2677T polymorphism<br />

in the paclitaxel-resistant chrompho-B and G1199A in both<br />

cell lines proven by DNA sequencing. In the acquired model the G2677T<br />

polymorphism could be observed in both cell lines, but the G1199A polymorphism<br />

only in the cell line clearCa-21sens.<br />

Conclusion. The MDR1-phenotype is associated with the sensitivity to<br />

paclitaxel in human renal cell carcinoma. Furthermore our results show<br />

first evidence for association of MDR1-polymorphism and sensitivity to<br />

paclitaxel in a model of “intrinsic” and “acquired” paclitaxel resistance.<br />

0438<br />

Plasmacytoid urothelial carcinomas of the bladder harbor complex<br />

genomic aberrations<br />

*B . Keck1 , S . Wach1 , C . Ellmann1 , F . Kunath1 , R . Stoehr2 , H . Taubert1 , A . Hartmann2<br />

, B . Wullich1 1 Urologische Universitätsklinik Erlangen, Urologie, Erlangen, Deutschland,<br />

2 Universitätsklinikum, Pathologisches Institut, Erlangen, Deutschland<br />

Aim. To investigate whether plasmacytoid urothelial carcinomas (PUC)<br />

are characterized by distinct chromosomal aberrations differing them<br />

from conventional muscle invasive transitional cell carcinomas (TCC)<br />

of the bladder and whether there are molecular events leading to the<br />

known loss of membranous E-cadherin expression.<br />

Methods. Analysis of 25 PUC was performed by conventional comparative<br />

genomic hybridization (CGH). Chromosomal regions were defined<br />

as characteristic if they were found in at least 20% of the tumors analyzed.<br />

Regions differing from whole-chromosomal signal ratio by at least<br />

three standard deviations (SD) were classified as chromosomal gains<br />

or losses. Heterochromatic and centromeric regions known to display<br />

unreliable signal ratios were excluded from analysis. Additionally copy<br />

number variation of CDH1 (E-Cadherin) was analyzed using polymerase<br />

chain reaction (PCR; n=19).<br />

Results. Chromosomal aberrations were found in all PUCs analyzed. In<br />

an average, 11.0 (1–17) aberrations per tumor were detected. Recurrent<br />

gains were found at 1q (40%), 3p (24%), 6p (32%), 7q (20%), 11q (64%), 15q<br />

(32%), 16q (40%), 17p (76%), 17q (88%), 20q (72%), 21q (32%), recurrent<br />

losses at 4q (72%), 5q (36%), 6q (60%), 13q (24%), and Xq (40%). PCR analysis<br />

showed heterozygous deletion of CDH1 in 68% of the PUC, whereas<br />

amplification was detected in only 3%.<br />

Conclusion. PUCs are characterized by a high genomic instability with<br />

aberrations that are even more complex than what has been described<br />

for conventional muscle invasive TCCs. However, no specific aberrations<br />

were detected that would allow to discriminate PUCs from conventional<br />

TCCs. Gains at 11q, 17q, 17p and 20q as well as losses at 4q and 6q<br />

are found in the vast majority of PUCs and could therefore represent<br />

important chromosomal regions that are involved in PUC carcinogenesis.<br />

These chromosomal aberrations are in line with other molecular<br />

variations of PUC like loss of membranous E-cadherin that are linked<br />

to the aggressive behaviour of PUC. Copy number variation analysis<br />

indicates heterozygous deletion of CDH1 as one underlying mechanism<br />

of this molecular event.<br />

0443<br />

The incidence of intrathoracic lymph node metastases and longterm<br />

outcome after pulmonary metastasectomy for metastatic<br />

renal cell carcinoma<br />

*N . Kudelin1 , S . Bölükbas1 , M . Eberlein1 , 2 , J . Schirren1 1 Dr . Horst Schmidt Klinik, Thoraxchirurgie, Wiesbaden, Deutschland, 2 Carver<br />

College of Medicine, Division of Pulmonary, Critical Care and Occupational<br />

Medicine, Iowa City, USA<br />

Objective. To investigate the incidence of intrathoracic lymph node metastases<br />

and long-term outcome after pulmonary metastasectomy (PM)<br />

for metastatic renal cell carcinoma (RCC).<br />

Methods. The office records of 116 consecutive patients (82 men, age<br />

61.7±9.0 years) who underwent PM and systematic lymph node dissection<br />

with curative intend from January 1999 through December 2009<br />

were reviewed from a prospective database. Patients’ characteristics<br />

and the following data were recorded: disease-free-intervall (DFI) from<br />

nephrectomy to the diagnosis of metastasis, systematic chemotherapy<br />

before surgical intervention, surgical procedures, pathohistological<br />

results, morbidity, mortality, survival and possible prognostic factors<br />

were analyzed<br />

Results. The overall 5-year-survival and 10-year survival rates were 49%<br />

and 21%, respectively. Morbidity and mortality rates were 13.8% and 0.9<br />

%, respectively. 40 patients (34.5%) had systematic therapy before metastasectomy.<br />

Partial regression was observed in 27.5% (11/40). Complete<br />

resections (R0) could be achieved in 108 patients (93.1%). Intrathoracic<br />

(hilar and/or mediastinal) lymph node metastases were found in 46.6 %<br />

of the study population. Median survival was 56.6±9.2 months. Patients’<br />

age (≥70 years; p=0.003), female gender (p=0.016) and number of metastases<br />

(≥2 metastases; p=0.012) were associated with inferior survival<br />

after pulmonary metastasectomy in the univariate analysis. Short DFI<br />

(


Abstracts<br />

Versorgungsstrukturen/Qualitätssicherung<br />

0006<br />

Multiprofessional cooperation in the Oncological Centre in<br />

<strong>Berlin</strong>-Spandau<br />

*J . Potenberg1 , G . Sproßmann-Günther2 1Ev . Waldkrankenhaus, Innere Abteilung, <strong>Berlin</strong>, Deutschland,<br />

2Ev . Waldkrankenhaus, Apotheke, <strong>Berlin</strong>, Deutschland<br />

Before the certification of the centre itself some components of the<br />

Oncological Centre had to have certified: 2000 Pharmacy of the Paul<br />

Gerhard Diakonie/2005 Breast Centre/2009 Centre of colorectal cancers/2009<br />

Centre of gynecological cancers. The first certification was<br />

the manufacturing of cytotoxic agents. 2010 396 patients were treated<br />

with antineoplastic drugs in our hospital. Calculated doses were checked<br />

by the pharmaceutical software Zenzy. Before the application of<br />

the cytostatics the informed consent of the patient was obtained. This<br />

consent describes side effects of each single drug that is to be given (e.g.<br />

heart failure by trastuzumab). After the treatment the side effects was<br />

estimated and the objective response of the tumour was evaluated using<br />

RECIST criteria. Therapy protocols describe the course of events and<br />

the handling of side effects of chemotherapy and the complications caused<br />

by the tumour.<br />

Nausea and Emesis/Treatment of pain/Fever and neutropenia/Infections/Mucositis,<br />

diarrhea, constipation/Handling of thrombosis.<br />

For a structural detection of side effects and the estimation of the performance<br />

status of the patient a „therapy check was developed. This<br />

therapy check is orientated on the CTC criteria, suited also for patients<br />

in studies. 2010 the haematological laboratory performed 5000 tests, including<br />

blood pictures, diagnosing leucaemias and neoplastic diseases<br />

in ascites und pleura fluid. Studies are an integral part of the quality assurance<br />

in the treatment of neoplastic diseases. Patients have the possibility<br />

getting drugs that aren’t approved yet. The high rate proportion of<br />

patient (e.g. 20% in breast centre) is a great challenge. In 2008 the outpatient<br />

cancer centre in the Ev. Waldkrankenhaus was created. It contains<br />

20 places for infusion therapy. Hospital doctors and free practicing physicians<br />

are working together under one roof. This collaboration made<br />

sure a 24 h/7 d care of patients including CT-scans and intensive care<br />

around the clock. Quality circles and the tumour conferences facilitate<br />

the compliance of guidelines. The tumor conferences are the core of<br />

the oncological centre. Here alls the tumour specialists are represented<br />

enabling the multiprofessional decision pondering several therapeutic<br />

options:<br />

Visceral, thorakal and orthopaedic surgeons/Pathology, Radiology,<br />

Pharmacy/Radiotherapy, Oncology.<br />

Several other professions are represented: Psychooncology, breast care<br />

nurses, social workers and the palliative care team. The concerted deliberation<br />

gives the effective decision, which is recorded and filed. The<br />

individual patient gets his or her file containing all the important findings.<br />

With the complete file the patient can obtain every opinion if he<br />

or she wishes so.<br />

0050<br />

Patients with metastatic solid tumors who receive their treatment<br />

in a community based oncology group practice live longer.<br />

*R . Weide1 , S . Feiten2 , V . Friesenhahn2 , J . Heymanns1 , K . Kleboth2 , U . Mergenthaler2<br />

, J . Thomalla1 , C . van Roye1 , H . Köppler1 1 Praxisklinik für Hämatologie und Onkologie, Koblenz, Deutschland,<br />

2 Institut für Versorgungsforschung in der Onkologie, Koblenz, Deutschland<br />

Background. Overall survival of patients (pts) with metastatic (met) solid<br />

tumors is known from controlled prospective trials (CPT). Results<br />

from CPT are biased due to necessary patient selection. No data exist<br />

144 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

so far about the outcome of unselected pts with met solid tumors who<br />

receive routine care treatment in a community based oncology group<br />

practice.<br />

Patients and methods. Retrospective overall survival analysis of all pts<br />

with met breast cancer, non small cell lung cancer, colorectal cancer and<br />

pancreatic cancer who received their treatment between 1995–2011 in an<br />

oncology group practice in <strong>German</strong>y. Overall survival was determined<br />

from the start of palliative therapy until death.<br />

Results. Median overall survival in 403 pts with met breast cancer was<br />

30 months [Weide R et al (2009), Onkologie 32(3):107–113] compared to<br />

24–28 months in CPT. Median overall survival of 86 pts with Her2-positive<br />

met breast cancer was 33 months [Weide R et al (2010), Senologie,<br />

7:159–160] compared to 25 months in CPT. Median overall survival in<br />

119 pts with met NSCLC was 11 months [Köppler et al (2009), Clin Med<br />

Oncol, 3:63–70] compared to 6–9 months in CPT. Median overall survival<br />

in 206 pts with met colorectal cancer was 21 months [Köppler et<br />

al (2010), Eur J <strong>Cancer</strong> Care 19:795–802] compared to 20–24 months in<br />

CPT. Median overall survival in 84 pts with met pancreatic cancer was<br />

42 weeks [Köppler et al (2004), J Support Oncol 2:159–163] compared<br />

to 12–24 weeks in CPT. Psychosocial distress has been shown to be lower<br />

compared to hospital settings [Mergenthaler et al (2011) Ann Oncol<br />

22:931–938]. Additional data will be presented.<br />

Conclusions. Overall survival of patients with metastatic solid tumors<br />

who receive their treatment in a community based oncology group<br />

practice compares favorably with the survival achieved in CPT. This<br />

survival advantage may be due to the cumulative oncology experience,<br />

continuity of care due to a constant patient-oncologist relationship, better<br />

patient compliance and lower psychosocial distress of patients and<br />

caregivers.<br />

0054<br />

<strong>Cancer</strong> patients’ use of dietary supplements and non prescription<br />

drugs – An evaluation of the <strong>Cancer</strong> Information Service,<br />

<strong>German</strong> <strong>Cancer</strong> Research Center, Heidelberg<br />

*B . Hiller1 1Deutsches Krebsforschungszentrum, Krebsinformationsdienst,<br />

Heidelberg, Deutschland<br />

Introduction. Many cancer patients believe that standard treatment is<br />

not enough. They use antioxidants during chemotherapy or radiation,<br />

detoxifying agents after treatment, homeopathy to cope with side effects<br />

and immune boosters to reduce the risk of relapse, often without<br />

telling their physicians. Problems are well documented, e.g. unwanted<br />

side effects and pharmacokinetic interaction with conventional cancer<br />

treatment. Even a negative impact on therapy outcome is discussed.<br />

Methods. To evaluate prevalence and patterns of self-medication among<br />

cancer patients in <strong>German</strong>y, the National <strong>Cancer</strong> Information Service<br />

at the <strong>German</strong> <strong>Cancer</strong> Research Center conducted a telephone survey in<br />

2010. 659 <strong>Cancer</strong> patients using the service’s toll free information hotline<br />

were asked, whether they used any over-the-counter (OTC) drugs,<br />

dietary supplements or other medication on their own initiative. Answers<br />

were indexed according to lists of pharmaceuticals licensed within<br />

<strong>German</strong>y or the European Union. For classification of substances<br />

without registration, dietary supplements etc., the <strong>Cancer</strong> Information<br />

Service’s own database was used as a reference.<br />

Results. 51 % of the callers used self-administered drugs or supplements<br />

at the time of the interview, most often without telling their physicians.<br />

The 338 patients named 620 different substances. Most common<br />

were selenium, zinc and multivitamins, followed by soy proteins, phytoestrogens,<br />

pomegranate juice, mushrooms, enzymes, laetrile, but also<br />

NSAID and other registered prescription free drugs. There were, however,<br />

substantial differences concerning the patterns of use: Some patients<br />

indicated, that they had taken an aspirin or a laxative the evening<br />

before. Others told the interviewers, that they regularly took a multivitamin-multi-mineral<br />

nutrient and combined it with extra doses of


vitamin A, C, E and zinc on the same day. Women added phytoestrogens,<br />

men selenium and pomegranate to this potpourri.<br />

Discussion. The data show how frequently <strong>German</strong> cancer patients use<br />

dietary supplements or non prescription drugs. Most of them are not<br />

aware of problems arising from polypharmacy. Therefore, limits and<br />

risks of self-administered medication should be an issue in the counseling<br />

and informing of cancer patients by health professionals.<br />

0065<br />

Quality of life (QoL) and function results of the minimal-invasive<br />

implantable, subcutaneous ureter prothesis (Detour®) for geriatric<br />

and palliative care patients with cancer therapy associated<br />

ureter strictures<br />

*A . Janitzky1 , M . Porsch1 , J . Borski1 , J .J . Wendler1 , D . Baumunk1 , M . Schostak1 ,<br />

U .-B . Liehr1 1Universitätsklinikum Magdeburg A . ö . R ., Klinik für Urologie, Magdeburg,<br />

Deutschland<br />

Purpose. Urinary diversion, such as DJ catheter and nephrostomy, are<br />

used in case of extensive and severe ureter strictures if surgical corrections<br />

are impossible. The Quality of life (QoL) is limited by periodically<br />

and partly difficult catheter changing procedures, catheter associated<br />

complications and external urinary diversion. In contrast to that the<br />

Detour® system as a permanent subcutaneous alloplastic ureter prothesis<br />

(inner silicone tube with a diameter of 5 mm and a Dacron® coating)<br />

is an alternative. A regular change is not necessary. The system is implanted<br />

percutaneously into the renal pelvis, tunnelled subcutaneously<br />

and typically introduced into the bladder via a small suprapubic incision.<br />

An introduction into replacement bladders as well as into cutaneous<br />

stoma is possible too.<br />

Methods. A prospective single center study of 25 Detour® prothesis implanted<br />

patients between 2004 and 2011 was performed. Surgical feasibility<br />

as well as QoL (EORTC QLQ-C30), clinical parameters, prothesis<br />

function and complications were evaluated in acute, subacute and chronic<br />

post-treatment period.<br />

Results. 29 Detour® systems (Coloplast®, Hamburg, <strong>German</strong>y) implantations<br />

were performed in 25 patients (4 bilateral), 26 renovesical, 2 into an<br />

ileum conduit and 1 into a neo-bladder. 17 patients were supplied by nephrostomy,<br />

11 with double-J or mono-J catheter, 1 with ureterocutaneostomy.<br />

Causes of implantation: 9 radiogenic stenosis, 3 iatrogenic long<br />

segment ureter lesions, 4 metastatic tumors, 8 post-surgery ureteral<br />

strictures, 1 revision of an ureterocutaneostomy. Intraoperative complications:<br />

1 intestinal lesion (suture and uncomplicated implantation of<br />

the system in the same session), 3 bleedings of the renal pelvis or into the<br />

tube with temporary nephrostomy or drainage. Urinary tract infections<br />

and 3 secondary wound healings were found post-operatively. 3 infected<br />

or occluded systems had to be explanted (1 in an ileum conduit, 1 in a<br />

neo-bladder, 1 normal). Two patients died because of tumor. Renal function<br />

is stable or improved in the follow-up (3 month to 7 years). Patient’s<br />

satisfaction is high. The analysis of the EORTC QLQ-C30 QoL forms<br />

shows an overall QoL of 90% (43–98%, mean 85%).<br />

Conclusions. The Detour® system is a useful alternative to standard urinary<br />

tract diversion not only in palliative care. Possible complications<br />

are manageable. QoL and social reintegration, and in particular active<br />

participation in social life are improved significantly.<br />

0070<br />

Information about medical rehabilitation in breast center<br />

hospitals – status quo, information needs and associations with<br />

hospital characteristics<br />

*G . Nellessen-Martens1 , C . Kowalski1 , L . Ansmann1 , H . Pfaff1 1 IMVR, Köln, Deutschland<br />

Background. The S3-guidline for diagnostics, therapy and post-operative<br />

care recommends early patient information about medical rehabilitation.<br />

This paper investigates the status quo of information about<br />

medical rehabilitation during the hospital stay and information needs –<br />

both from the patients’ point of view. Additionally, differences between<br />

hospitals were analyzed.<br />

Methods. Newly-diagnosed breast cancer patients treated in breast center<br />

hospitals in North Rhine-Westphalia in 2010 were asked to complete<br />

the Cologne Patient Questionnaire for Breast <strong>Cancer</strong>, a standardized<br />

postal questionnaire. The survey data were supplemented with clinical<br />

data by medical personnel. The data were also combined with data from<br />

key informants of breast center hospitals, providing information on<br />

teaching status, number of hospitals per breast center and cooperation<br />

with rehabilitation clinics.<br />

Results. 3840 patients from 93 breast cancer hospitals participated in<br />

the study. 79% reported having been given information on medical<br />

rehabilitation and 21% have not been informed. 27% reported a need<br />

for more information. A multilevel model found differences between<br />

the hospitals concerning the information about medical rehabilitation<br />

(interclass correlation coefficient of 0.11). Whereas in some hospitals all<br />

patients have been informed, in other hospitals only 22% of the patients<br />

have been informed. Model 1 found some statistically significant associations<br />

on patient-level, e.g. information about rehabilitation is significantly<br />

higher for patients without partner, for patients with <strong>German</strong> as<br />

their native language and for patients with adjuvant chemotherapy. The<br />

chance for receiving information was significantly lower for patients<br />

with UICC-stage 0, stage 2, stage 3 and stage 4 compared to patients<br />

with stage 1. In Model 2, hospital-level characteristics were added. No<br />

statistically significant associations were found on hospital level.<br />

Conclusions. The results on patient-level lead to the discussion, whether<br />

information should be tailored to patients depending on their native<br />

language or family status. Furthermore, differences between breast center<br />

hospitals exist but cannot be explained by the included hospital characteristics.<br />

Nevertheless, the results show that for most hospitals the<br />

extent and manner of information about medical rehabilitation should<br />

be improved.<br />

0119<br />

Group class for patients and families: “Chemotherapy – What I<br />

need to know” in the Center for Integrated Oncology<br />

*B . Strohbücker1 , T . Elter2 , S . Stock1 , M . Schwartzkopff2 , J . Wolf2 1 Uniklinik Köln, Institut für Gesundheitsökonomie und klinische Epidemiologie,<br />

Köln, Deutschland, 2 Uniklinik Köln, Centrum für integrierte Onkologie,<br />

Köln, Deutschland<br />

Objectives. Patients receiving cancer treatment in the ambulatory setting<br />

need targeted information on management of chemotherapy and<br />

its side effects. Well informed patients can take an active part in the<br />

therapeutic procedure and make their own decisions. Information will<br />

also reduce stress and anxiety and support the coping process. We wanted<br />

to develop a model of an easy accessible, cost efficient group class for<br />

patients who receive chemotherapy and their families.<br />

Method. The topics of the group class were based on the literature as<br />

well as on a small patient survey we performed in our clinic. We also<br />

considered recommendations concerning the organization of a group<br />

class from the literature. Group classes were designed in a teamteaching<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

145


Abstracts<br />

format, involving a physician and a nurse form the clinic. Evaluation of<br />

the class was done by a semi-structured questionnaire.<br />

Results. We carried out two pilot group classes. Many patients were accompanied<br />

by a family member seeking for information, too. The focus<br />

was on participants’ questions; they were collected at the beginning of<br />

the class and documented on a flip chart. A short lecture on requested<br />

topics was expanded by the following group discussion. The main topics<br />

were: the organizational procedure of chemotherapy, nausea and<br />

vomiting, oral care, hair loss, fatigue, dietary recommendations as well<br />

as risk of infection and bleeding. Participants valued the information<br />

received and exchange of experience as very helpful. They appreciated<br />

having sufficient time for discussing their questions.<br />

Discussion. Group classes are an adequate forum to present and discuss<br />

relevant information. Physicians and nurses in the clinic will safe time<br />

since many questions of patients and families are dealt with before<br />

starting chemotherapy. A group class on a regular basis, organized as<br />

a walk-in class may help to facilitate organizational procedure for both<br />

patients and administrators.<br />

0130<br />

Changes in the quality of psychosocial care by urologists in longterm<br />

treatment of localized prostate cancer: the patients’ view<br />

*N . Ernstmann1 , J . Jung1 , O . Ommen1 , H . Pfaff1 , L . Weißbach2 1 2 Universität zu Köln, IMVR, Köln, Deutschland, Stiftung Männergesundheit,<br />

<strong>Berlin</strong>, Deutschland<br />

Background. Whilst much is known as to the met and unmet communication<br />

needs of prostate cancer patients, few studies have been conducted<br />

on the changes in communication between provider and patient<br />

over time. The aim of our study is to examine a) whether there are changes<br />

over time in the quality of psychosocial care in long-term treatment<br />

of localized prostate cancer and b) whether those changes are associated<br />

with the treatment decision.<br />

Methods. Data were collected within a five year prospective, multicenter<br />

observational study starting in 2008 in <strong>German</strong>y. At 6-months intervals<br />

general clinical data, tumour stage and data reported by the patient about<br />

quality of life, provider-patient-interaction, treatment satisfaction<br />

and individual costs are documented. Data of n=1216 patients (T0 = initial<br />

diagnosis and T1 = 6 months after initial diagnosis) were collected<br />

until now. Provider-patient-interaction is assessed with a 13 item instrument<br />

with the subscales devotion by physicians (5 items), support by<br />

physicians (3 items), information by physicians (2 items), and shared<br />

decision making (3 items).<br />

Results. After 6 months the assessment of shared decision making has<br />

significantly declined in the group of patients undergoing a prostatectomy<br />

and the hormonal therapy group compared to the time of initial diagnosis.<br />

Further, patients undergoing a prostatectomy report the lowest<br />

level of support by their urologists at the time of initial diagnosis. The<br />

ratings differ significantly from the hormonal therapy group.<br />

Conclusions. Our results indicate that the overall quality of psychosocial<br />

care as assessed by our patients is very high. However, we found<br />

significant changes over time and differences between the treatment<br />

groups. Future analyses of our 5-year prospective data will allow us to<br />

investigate whether the results are stable in the long run. The reasons for<br />

the differences between surgically treated patients and other treatments<br />

groups should be subject to further studies, preferably in a qualitative<br />

approach.<br />

146 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

0189<br />

In- and outpatient psychosocial care for cancer patients – comparison<br />

of cancer incidence rates, psychosocial needs and psychosocial<br />

care at a University centre<br />

*S . Singer1,2 , D . Müller-Briel2 , A . Dietz2 , E . Brähler2 , K . Schröter2 , A . Lehmann-<br />

Laue2 1 Bergische Universität Wuppertal, Gesundheitspsychologie, Wuppertal,<br />

Deutschland, 2 Universität, Leipzig, Deutschland<br />

Objectives. The aim of this study was to determine rates of psycho-oncological<br />

care for cancer in- and outpatients under routine conditions<br />

in a large University hospital. We analyzed the percentage of patients<br />

who received care comparing it with self- and expert-rated supportive<br />

care needs.<br />

Methods. The percentage of inpatients who received psycho-oncological<br />

care was calculated by comparing the number of cancer patients treated<br />

at the hospital as documented by the local tumor registry (n=1979) with<br />

the number of patients treated by a psycho-oncologist in that hospital as<br />

documented by the hospital’s psycho-oncological consultation-liaison<br />

service. The percentage of outpatients who received psycho-oncological<br />

care was calculated by comparing the number of incident cancer cases<br />

as documented by the local tumor registry (n=5886) with the number of<br />

patients who received at least one consultation at the local tumor counseling<br />

centre. Supportive care needs were estimated by analyzing data<br />

of a prospective patient survey in the same hospital (n=1803) using the<br />

Hospital Anxiety and Depression Scale and single items to determine<br />

social burden and the wish for emotional support.<br />

Results. 11% of in- and of outpatients (n=234 and n=638) received psycho-oncological<br />

care. Social care needs were prevalent in 37% and<br />

psychological care needs in 52% of the patients during the stay at the<br />

hospital and in 42% (social and psychological) half a year later. 41% of<br />

the patients expressed the need to see a social worker and 29% to see a<br />

psychologist. Large differences between patients of different tumor entities<br />

occurred.<br />

Conclusion. Psycho-oncological care delivered to cancer patients under<br />

routine conditions was below the actual needs rate as estimated by<br />

screening instruments and as expressed by the patients.<br />

0229<br />

Relevance and occurrence of phase IV studies in clinical cancer<br />

research – a situation analysis<br />

*M . Hartmann1 1European Consulting & Contracting in Oncology, Medical-Clinical Affairs,<br />

Trier, Deutschland<br />

Background. Historically, phase IV studies do not play a relevant role<br />

in clinical cancer research. The new EU pharmacovigilance legislation,<br />

issued on 31 December 2010, will strengthen and rationalize the current<br />

system for monitoring the safety of medicines on the European market<br />

and enables drug authorities for the first time ever to mandate the conduct<br />

of post-authorization studies.<br />

Methods. The existing requirements for and definitions of post authorization<br />

(i.e. phase IV) studies in <strong>German</strong>y and other European key<br />

countries (France, Italy, Spain, Netherlands, UK) were analyzed. Comparative<br />

official figures relative to the conduct of phase IV studies in<br />

these countries over the last decade were collected. Using descriptive<br />

statistics, the proportion of phase IV trials and trends in the conduct of<br />

these trials were determined.<br />

Results. The definitions of, what constitutes a “post authorization study”,<br />

are widely differing across Europe. Some consistency exists only<br />

regarding the requirements for interventional phase IV studies. For<br />

non-interventional phase IV studies, including the “Anwendungsbeobachtungen”<br />

as defined by the <strong>German</strong> Medicines Law and other types of<br />

pharmacoepidemiological studies, the requirements for the ethical and


egulatory supervision, informed consent, insurance and data protection<br />

as well as for data management and reporting are not harmonized<br />

at all. Taking into account these national differences in the supervision<br />

of observational and quasi-observational clinical studies, available figures<br />

from drug authorities indicate a rise in the number of phase IV<br />

drug trials in several countries including <strong>German</strong>y, where the number<br />

of phase IV drug trials augmented annually by 6% over the last decade.<br />

Phase IV drug trials currently represent 10–15% of all clinical trials in<br />

the above-mentioned EU countries with <strong>German</strong>y serving as the rear<br />

end light. With regard to the low number of phase IV trials currently<br />

reported at cancer conferences, it is assumed that currently the reporting<br />

of phase IV study results at cancer congresses is rather not habitual.<br />

Conclusion. With the coming-into force of the new EU pharmaceutical<br />

legislation in <strong>2012</strong>, the relevance and occurrence of phase IV trials will<br />

further increase with an impact on clinical cancer research and cancer<br />

conferences. Pharmacovigilance and pharmacoepidemiological studies<br />

will contribute in the future much more to the evidence-building and<br />

decision-making in oncology and hematology.<br />

0285<br />

Fruit, vegetable and red meat consumption before and after<br />

rehabilitation among breast cancer patients<br />

*A .-K . Exner1 , H . Kähnert1 , B . Leibbrand2 , I . Biester3 , D . Gharaei4 , C . Niehues5 ,<br />

M . Trapp6 1Salzetalklinik, IFR, Norderney – Bad Salzuflen, Bad Salzuflen, Deutschland,<br />

2 3 Salzetalklinik, Onkologie, Bad Salzuflen, Deutschland, MediClin Rose<br />

Klinik, Onkologie, Horn-Bad Meinberg, Deutschland, 4Klinik Porta-Westfalica,<br />

Onkologie, Bad Oeynhausen, Deutschland, 5Median Kliniken am<br />

Burggraben, Onkologie, Bad Salzuflen, Deutschland, 6Median Klinik am<br />

Park, Onkologie, Bad Oeynhausen, Deutschland<br />

Introduction. Several studies report associations between diet as well as<br />

an increased body mass index (BMI) and breast cancer. Breast cancer<br />

patients (BCP) are advised to follow a healthy diet. The <strong>German</strong> Society<br />

of Nutrition and the World <strong>Cancer</strong> Research Fund recommend the following:<br />

daily consumption of 2 fruit and 3 vegetable servings as well as<br />

weekly 300 grams red meat (approx. 2 servings). The aim of the study<br />

was to explore dietary patterns (fruit, vegetables and red meat) of BCP<br />

before and 6 months after rehabilitation. Moreover, the impact of nutritional<br />

counseling (NC) on dietary patterns during rehabilitation has<br />

been investigated.<br />

Methods. During the INOP-study, 450 BCP were interviewed at 2 points<br />

in time using questionnaires: at the beginning (t1) and 6 months<br />

after rehabilitation (t3). The participants were interviewed regarding the<br />

frequency of their daily fruit and vegetable intake as well as weekly red<br />

meat consumption. The analyses are based on a subsample of BCP due<br />

to yet finished follow-up at the time of the study. A statistical analysis<br />

comparing dietary patterns of BCP who received NC during rehabilitation<br />

with BCP without NC was carried out at t1 and t3 using t-test<br />

analysis.<br />

Results. The proportion of BCP following the above named recommendations<br />

increased significantly from t1 to t3 as follows: fruit consumption<br />

from 76–81%, vegetable consumption from 20–24% and red meat<br />

intake from 63–72%. At t1, no significant differences regarding fruit, vegetable<br />

and red meat consumption has been found between BCP receiving<br />

NC (n=233) and BCP without NC (n=185). However, BCP receiving<br />

NC exhibited a significantly elevated BMI as compared to BCP without<br />

NC at t1. BCP with NC stated “loss of weight” as well as “healthier diet”<br />

as major targets for the participation in NC. Compared to BCP without<br />

NC, BCP with NC exhibited a significant increase in fruit consumption<br />

between t1 and t3 (p


Abstracts<br />

aspects of hospital care along the progress of the breast center implementation<br />

and (2) to analyze differences between breast center hospitals<br />

concerning these aspects.<br />

Methods. Breast centers in NRW participate in annual patient surveys.<br />

After surgery, newly-diagnosed breast cancer patients were surveyed on<br />

their perception of several aspects of hospital care. This poster presents<br />

trends in patient satisfaction with hospital care between 2006 and 2010<br />

by displaying mean scores of 17 single items measuring diverse dimensions<br />

of satisfaction over all hospitals. To investigate whether differences<br />

between breast center hospitals in patient satisfaction have been decreasing<br />

over time, intraclass-correlation coefficients (ICCs) were calculated<br />

using multilevel modeling.<br />

Results. The mean values of almost all patient satisfaction dimensions<br />

were gradually increasing over time and they express a very high level of<br />

patient satisfaction. Simultaneously, for most dimensions the ICCs were<br />

decreasing between 2006 and 2010, although linear trends could rarely<br />

be identified over time.<br />

Conclusion. The results imply that, overall in NRW patients are very satisfied<br />

with the care of breast center hospitals. The slightly increasing<br />

satisfaction between 2006 and 2010 might be a result of the breast center<br />

concept and the benchmarking results of the patient surveys as it can be<br />

used for quality improvement. Nevertheless, causality cannot be assumed.<br />

Moreover, the ICCs indicate that, over time, there are fewer differences<br />

between hospitals in most aspects of patient satisfaction. Thus,<br />

the progressing fulfilment of the certification criteria may be reflected<br />

in consistently high levels of patients’ perceived quality of hospital care.<br />

Moreover, the idea to investigate variations between health care facilities<br />

by multilevel modeling presents a useful approach for evaluating<br />

the implementation of new concepts in health care and could also be<br />

applied to other measures of quality of care, such as performance indicators.<br />

0317<br />

Development of a “best practice model” assuring medication<br />

safety in cancer patients<br />

*A . Wilmer1 , N . Döhler1 , K . Ruberg2 , Y . Ko3 , U . Jaehde1 1Pharmazeutisches Institut, Universität Bonn, Klinische Pharmazie, Bonn,<br />

Deutschland, 2Kronen-Apotheke, Wesseling, Deutschland, 3Johanniter- Krankenhaus, Bonn, Deutschland<br />

Objective. To enhance patient safety in anticancer drug therapy by<br />

structured and standardized multiprofessional inpatient care.<br />

Methods. A module-based approach was chosen to define “best practice”.<br />

Care modules consisting of evidence-based supportive care, task<br />

assignment to the involved professionals, and patient information were<br />

developed based on a literature review and previous experience with<br />

multiprofessional patient care.<br />

Results. So far, six care modules were developed for medication reconciliation<br />

and management, detection of drug interactions and management<br />

of four common adverse events (AE): nausea and emesis,<br />

mucositis, fatigue and pain. For each module a working algorithm was<br />

constructed illustrating the care process and facilitating multiprofessional<br />

accomplishment by physicians, pharmacists and nurses. The<br />

modules for medication reconciliation and the interaction check are to<br />

be applied routinely for each patient treated with anticancer drugs. In<br />

contrast, the four modules for AE management can be applied individually<br />

depending on patient status and anticipated AE. Each AE module<br />

comprises a supportive care leaflet providing current guideline recommendations<br />

for physicians and pharmacists and a specific information<br />

brochure for the patient providing recommendations for daily living<br />

and supporting material like diaries and questionnaires.<br />

Conclusion. Our best practice model can be individualized to a great<br />

extent by combining different modules for each patient according to his<br />

medication and the anticipated toxicity. Moreover, it can be expanded<br />

by further modules addressing other AE or minimizing further pro-<br />

148 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

blems, e.g. adherence. The model will be assessed and evaluated at the<br />

Johanniter-Krankenhaus in Bonn, <strong>German</strong>y.<br />

0331<br />

The “North<strong>German</strong> Tumorbank of Colorectal <strong>Cancer</strong>” as part of<br />

the priority program “Tumor Biobanks” funded by the <strong>German</strong><br />

<strong>Cancer</strong> Aid Foundation<br />

*M . Oberländer1 , M . Linnebacher2 , E . Yekebas3 , A . König3 , V . Bogoevska3 ,<br />

C . Brodersen3 , J . Kisro4 , L .-I . Partecke5 , C . Thorns6 , J . Büning7 , T . Laubert1 ,<br />

R . Kaatz1 , S . Matula1 , F . Prall8 , G . Sauter9 , T . Jungbluth10 , M . Strik11 , I . Fichtner12 ,<br />

U .J . Roblick13 , B . Vollmar14 , C .-D . Heidecke5 , J .R . Izbicki3 , E . Klar2 , H .-P . Bruch13 ,<br />

J .K . Habermann1 1Universität zu Lübeck – Klinik für Chirurgie, Chirurgisches Forschungslabor,<br />

Lübeck, Deutschland, 2Universität Rostock, Klinik für Chirurgie,<br />

Rostock, Deutschland, 3Universitätsklinikum Hamburg-Eppendorf, Klinik<br />

für Chirurgie, Hamburg, Deutschland, 4Onkologische Schwerpunktpraxis,<br />

Lübeck, Deutschland, 5Ernst-Moritz-Arndt Universität Greifswald, Klinik für<br />

Chirurgie, Greifswald, Deutschland, 6Universität zu Lübeck, Institut für Pathologie,<br />

Lübeck, Deutschland, 7Universität zu Lübeck, Medizinische Klinik<br />

I, Gastroenterologie, Lübeck, Deutschland, 8Universität Rostock, Institut für<br />

Pathologie, Rostock, Deutschland, 9Universitätsklinikum Hamburg-Eppendorf,<br />

Institut für Pathologie, Hamburg, Deutschland, 10Asklepios Klinik,<br />

Abteilung für Chirurgie, Bad Oldesloe, Deutschland, 11Helios Klinikum,<br />

Klinik für Chirurgie, <strong>Berlin</strong>-Buch, Deutschland, 12Epo GmbH – Experimental<br />

Pharmacology & Oncology, <strong>Berlin</strong>-Buch, Deutschland, 13Universität zu<br />

Lübeck, Klinik für Chirurgie, Lübeck, Deutschland, 14Universität Rostock,<br />

Institut für Experimentelle Chirurgie, Rostock, Deutschland<br />

Introduction. The <strong>German</strong> <strong>Cancer</strong> Aid Foundation (Deutsche Krebshilfe<br />

e.V.) funds four biobank networks focusing on CNS tumors (Düsseldorf,<br />

Bochum, Leipzig), melanomas (Essen, Mannheim, Heidelberg),<br />

breast carcinomas (Freiburg, Tübingen, Kiel), and colorectal carcinomas<br />

(Lübeck, Rostock, Hamburg, Greifswald). The latter one, briefly<br />

called ColoNet is managed by surgeons, pathologists, gastroenterologists<br />

and oncologists.<br />

Methods. One common steering committee for all four networks guides<br />

the harmonization of standard operating procedures (SOPs) concerning<br />

all biobanking aspects and initiates overall quality measures and<br />

scientific projects.<br />

Results. All networks have harmonized SOPs for sample collection and<br />

processing of e.g., native material, DNA and serum. Crucial steps for<br />

quality assurance have therefore been implemented. Further objectives<br />

are the expansion of the sample and clinical data collections. Such<br />

repository will be used for research projects in order to improve early<br />

diagnosis, therapy, follow-up and prognosis. Apart from the routine<br />

sample storage at −170°C, “ColoNet’s” unique characteristic is the<br />

participation of outpatient clinics and oncologists in private practice.<br />

Furthermore, a quality management system according to DIN EN ISO<br />

9001:2008 is currently being implemented to guarantee the compliance<br />

of standard processes and a consistent quality of tissue samples.<br />

Summary. The funding by the <strong>German</strong> <strong>Cancer</strong> Aid has already led to<br />

a closer scientific connection between the participating institutions.<br />

Furthermore, the common steering committee facilitates harmonization<br />

and networking at the national and international level.


0339<br />

Incidence of secondary tumors in patients of the population-based<br />

tumor registry – or is academic research based on a clinical<br />

cancer registry possible?<br />

M . Holzinger1 , B . Trilling1 , *J . Hartmann2 1Südwestdeutsches Tumorzentrum, CCC Tübingen, Tübingen, Deutschland,<br />

2Universitätsklinikum Schleswig-Holstein Kiel, Klinik für Innere Med .<br />

II, Hämatologie und Internistische Onkologie, Kiel, Deutschland<br />

Introduction. The aim of the study was to investigate the risk of development<br />

of a secondary malignancy after a primary cancer.<br />

Methods. The report is based on data from 58,015 patients (pts) of the<br />

clinical cancer registry of Southwest <strong>German</strong>y in Tübingen, collected<br />

between 1983 and 2006. The analysis includes descriptive parameters,<br />

uni- und multivariate regression, logistic regression, and cumulative<br />

incidence.<br />

Results. The median follow-up period was 8.7 years (yrs) for all pts. Six<br />

percent of all pts (3552 of 58,015 pts, 6.1%) developed a secondary tumor.<br />

The rate was 6.3 % for male pts (1784 of 28,148) and 5.9% for female pts<br />

(1768 of 29,867). Average time between dates of diagnosis of the primary<br />

and secondary tumor was 4.3 years (yrs) for all pts, 4.7 yrs for females,<br />

and 3.9 yrs for males. Secondary cancers occurred most frequently following<br />

skin tumors (18.7 %, except for melanomas) and least frequently<br />

following ALL (0.6%). Secondary tumors were diagnosed an average<br />

2.4 yrs after neuroendokrine tumors und 10.6 yrs after Hodgkin’s lymphoma.<br />

The following parameters affected the development of a secondary<br />

tumor: age (higher incidence with increasing age), T-stage (higher<br />

incidence with more advanced T-stage), M-stage (higher incidence with<br />

more advanced M-stage), und chemotherapy (higher incidence limited<br />

to period between 3 and 10 yrs). The cumulative incidence of secondary<br />

tumors was 3.5% after 3 yrs, 5.3% after 5 yrs, and 9% after 10 yrs. The<br />

cumulative incidence varies for different types of cancer. Skin tumors<br />

(except for melanomas) (35%), head and neck tumors (25.2%), kidney/<br />

urinary tract tumors (21%), and lung cancers (20.3%) show the highest<br />

cumulative incidence within 10 years. ALL (1.8%), germ cell tumors<br />

(3.5%), AML (4.3%), and Hodgkin’s lymphoma (4.4%) have the lowest<br />

rate.<br />

Conclusion. Our results are limited by the restricted follow-up period.<br />

Even though there were 48 yrs between first and last inclusion, the follow-up<br />

period is relatively short, and we were unable to use our results<br />

for a risk assessment of radiation-induced secondary malignancies.<br />

Chemotherapy does result in an increased risk of secondary tumors<br />

between 3 to 10 yrs following treatment. The varying risks of primary<br />

cancers for the development of secondary malignancies have implications<br />

for treatment and follow-up care of cancer patients.<br />

0361<br />

Encourage to Exercise – a concept of therapeutic exercise for<br />

patients during clinical treatment of an SCT<br />

*J . Arndt1 , S . Wilke2 , W . Hiddemann3 , J . Braess4 , A . Günzel5 1Klinikum der Universität München – Großhadern, Medizinische Klinik und<br />

Poliklinik III, Station L21 , München, Deutschland, 2Klinikum der Universität<br />

München, Klinik und Poliklinik für Physikalische Medizin und Rehabilitation,<br />

München, Deutschland, 3Klinikum der Universität München –<br />

Großhadern, Medizinische Klinik und Poliklinik III, München, Deutschland,<br />

4Krankenhaus Barmherzige Brüder Regensburg, Klinik für Onkologie und<br />

Hämatologie, Regensburg, Deutschland, 5Steinbeis- Hochschule <strong>Berlin</strong>,<br />

<strong>Berlin</strong>, Deutschland<br />

Hematopoietic stem cell transplantation (SCT) involves aggressive chemo<br />

or radio therapy, which leads to a suppression of the immune system<br />

and requires protective isolation. These factors considerably reduce the<br />

patients‘ radius of movement and restrict their mobility. This marks the<br />

beginning of a downward spiral, leading to symptoms such as pain or<br />

further immobility caused by a lack of activity. Numerous scientific stu-<br />

dies have shown the positive effects of well-balanced physical exercise<br />

on the physical and mental condition of patients. For this reason, the<br />

Medical Clinic III has developed the „Encourage to Exercise“ project<br />

in addition to the established physiotherapy during SCT. The idea behind<br />

the project is to advise, instruct, and train patients with the aim<br />

of preventing the possible consequences of a lack of activity. Not only<br />

physiotherapists, but also doctors, nursing staff, and psycho-oncologists<br />

take on a motivating role. All patients are given an individually<br />

tailored program, based on exercises while lying, sitting, or standing.<br />

During clinical treatment, the exercises are adapted to each patient‘s<br />

general condition. At the same time, patients can join group exercises<br />

with other patients, depending on their general condition, to prevent<br />

isolation. In order to keep the patients motivated, a handout lists the<br />

positive effects of exercise as well as the consequences of a lack of exercise.<br />

A patient diary, which is used to record whether the patient could<br />

perform the exercises and whether they had a positive effect on the patient‘s<br />

mood, helps to evaluate the project. A further goal of the project<br />

is to find out during which phase of an SCT patients need instruction or<br />

motivation. At discharge, patients are given exercise recommendations<br />

to take home. All staff involved receive intensive training for the project.<br />

While not requiring additional staff, the project expands the amount<br />

of physical therapy and enables patients to actively participate in their<br />

recovery.<br />

0389<br />

Quality of life and ascites symptoms in patients with malignant<br />

ascites after treatment with catumaxomab – results from a multicenter<br />

phase II/III study<br />

*P . Wimberger1 , A .-K . Gonschior2 , H . Gilet3 , M .M . Heiss4 , M . Hennig2 , M . Moehler5<br />

, B . Schmalfeldt6 , E . Schulze2 , S .L . Parsons7 1University of Duisburg-Essen, Clinic for Gynaecology and Obstetrics,<br />

Essen, Deutschland, 2Fresenius Biotech GmbH, Munich, Deutschland, 3Mapi Values, Lyon, Frankreich, 4Cologne-Merheim Medical Center, Cologne,<br />

Deutschland, 5Johannes-Gutenberg University, Mainz, Deutschland, 6Tech nical University Munich, Munich, Deutschland, 7Nottingham University<br />

Hospitals NHS Trust, Nottingham, UK<br />

Background. Malignant ascites (MA) is associated with a poor prognosis.<br />

Patients with MA suffer from a number of burdensome symptoms<br />

and impaired quality of life (QoL). The trifunctional antibody catumaxomab<br />

is approved for the treatment of MA. Its superiority over paracentesis<br />

including a positive trend in overall survival has been demonstrated<br />

in a pivotal phase II/III study (AC-01, Fresenius Biotech). The<br />

objective of this analysis was to analyse the evolution of ascites symptoms<br />

and QoL as reported by patients treated with paracentesis plus<br />

catumaxomab vs. paracentesis alone.<br />

Methods. The AC-01 study was a randomized, open-label, multicenter<br />

study in patients with symptomatic MA due to EpCAM-positive cancer.<br />

QoL as well as ascites symptoms were assessed for patients randomized<br />

to catumaxomab (n=170) and control (n=88). QoL was assessed by the<br />

EORTC QLQ-C30 at screening and during the study with assessments<br />

scheduled at month 1, month 3, month 7, and repuncture. The severity<br />

of ascites symptoms were assessed at screening, 8 days after treatment,<br />

month 1 and month 3 using a symptom questionnaire. QoL was assessed<br />

by measuring the time to first deterioration in QLQ-C30 scores defined<br />

as decrease in the score of at least 5 points. Time to first deterioration<br />

was compared between catumaxomab and control groups using survival<br />

methods with log-rank test and Cox models adjusted for screening<br />

score, region and primary tumour type. The rate of symptom-free patients<br />

was compared between treatment groups using Fisher’s exact test.<br />

Results. Deterioration in QoL scores appeared more rapidly in control<br />

than in the catumaxomab group (median: 16–28 days vs. 45–49 days).<br />

The difference in time to first deterioration in QoL between groups was<br />

statistically significant for all 15 QLQ-C30 scores (p


Abstracts<br />

ratios ranging from 0.08–0.42 corresponding to a statistically significant<br />

risk reduction of 92–58%. Reduction of ascites symptoms was more<br />

pronounced in the catumaxomab group. At the visits 8 days, 1 month<br />

and 3 months after treatment more patients in the catumaxomab group<br />

were symptom-free compared to control (33% vs. 11%, 20% vs. 5%; 6% vs.<br />

0%, respectively).<br />

Conclusion. Catumaxomab maintains patients at a health status with a<br />

better QoL for a longer period of life and a prolonged reduction of ascites<br />

symptoms compared to paracentesis.<br />

0412<br />

Measuring the capture efficiency of a cancer registry by using<br />

standard administrative data<br />

*K . Funke1 , M . Meyer1 , J . Wolf1 , J .-P . Glossmann1 1Uniklinik Köln, Centrum für Integrierte Onkologie, Köln, Deutschland<br />

Introduction. In 2008, the Clinical <strong>Cancer</strong> Registry (CCR) of the Center<br />

for Integrated Oncology (CIO) at the University Hospital Cologne was<br />

founded. One of the challenges during the build-up was to establish a<br />

method to measure the overall performance as well as the efficiency for<br />

each cancer type within one of the largest Comprehensive <strong>Cancer</strong> Centers<br />

(CCCs) in <strong>German</strong>y.<br />

Method. We calculate the capture efficiency by using the fraction of patients<br />

registered in the CCR as compared to all cancer patients treated<br />

in our center. The denominator is the number of all in- and outpatients<br />

with a cancer diagnosis (ICD-10 C**.**) treated within our center. This<br />

information is derived from standard administrative billing data. As<br />

numerator we use the number of matching patients from the CCR database.<br />

Only pseudonymized data is used.<br />

“Number of matching patients registered in the CCR” divided by “Number<br />

of cancer patients treated according to billing data” ×100 = X% capture<br />

efficiency.<br />

Results. In 2010 a total of 10,577 patients were treated according to billing<br />

data and of these patients 6067 were registered in the CCR. The<br />

overall capture efficiency of the CCR was 58%. Within the cancer types<br />

(ICD subgroups) the capture rate varied between 8% and 100%.<br />

Discussion. The aimed capture rate of our CCR is 100% and in 2010<br />

we have achieved 58%. To us this is a positive result given the limited<br />

resources. The work of the CCR is currently not financed by sickness<br />

funds and depending on third party spending. The capture efficiency<br />

will be used to monitor the progress of the CCR with the aim to achieve<br />

100% capture rate by <strong>2012</strong>. A possible bias could be wrong coding of diagnosis.<br />

In conclusion we have successfully established an efficient method<br />

to measure the performance of a clinical cancer registry by using<br />

standard administrative data. This method can be easily used by other<br />

centers with cancer registries.<br />

0449<br />

“<strong>Cancer</strong> in <strong>German</strong>y” <strong>2012</strong> – Current developments in epidemiological<br />

cancer statistics in <strong>German</strong>y<br />

*K . Kraywinkel1 , U . Wolf1 , J . Haberland1 , B . Barnes1 , J . Bertz1 , S . Dahm1 1Robert Koch-Institut, Zentrum für Krebsregisterdaten, <strong>Berlin</strong>, Deutschland<br />

The (<strong>German</strong>) Centre for <strong>Cancer</strong> Registry Data (ZfKD) at the Robert<br />

Koch Institute (RKI) in <strong>Berlin</strong> and the Association of Population-based<br />

<strong>Cancer</strong> Registries in <strong>German</strong>y (GEKID) are jointly publishing the 8th<br />

edition of the biennial booklet «<strong>Cancer</strong> in <strong>German</strong>y» to coincide with<br />

this year‘s <strong>30th</strong> <strong>German</strong> <strong>Cancer</strong> <strong>Congress</strong>. This edition deals with new<br />

cancer cases up to 2008. The figures are now recorded with blanket coverage<br />

in virtually all Länder (federal states) and sent on to the ZfKD<br />

for nationwide evaluation. The booklet contains texts, charts and tables<br />

with information on the incidence and mortality of cancers in <strong>German</strong>y<br />

according to age and gender. It also analyses current trends and categorizes<br />

the results in international comparisons. Further points of empha-<br />

150 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

Tab. 4 Estimated number of new cancer cases in <strong>German</strong>y in 2008<br />

<strong>Cancer</strong> site ICD-10 men women<br />

Oral cavity and<br />

pharynx<br />

C00-C14 9 .520 3 .490<br />

Oesophagus C15 4 .800 1 .380<br />

Stomach C16 9 .210 6 .660<br />

Colon and rectum C18-21 35 .350 30 .040<br />

Liver C22 5 .270 2 .340<br />

Gallbladder and biliary<br />

tract<br />

C23-24 2 .270 2 .890<br />

Pancreas C25 7 .390 7 .570<br />

Larynx C32 3 .610 510<br />

Lung C33-34 33 .960 15 .570<br />

Malignant melanoma<br />

of the skin<br />

C43 8 .910 8 .890<br />

Breast C50 520 71 .660<br />

Cervix C53 4 .880<br />

Uterus C54-55 11 .280<br />

Ovaries C56 7 .790<br />

Prostate C61 63 .440<br />

Testis C62 3 .970<br />

Kidney C64 8 .960 5 .540<br />

Bladder C67 11 .460 4 .510<br />

Central nervous<br />

system<br />

C70-72 3 .810 2 .990<br />

Thyroid gland C73 1 .710 4 .160<br />

Hodgkin's lymphoma C81 1 .160 920<br />

Non-Hodgkin lymphomas<br />

C82-85 7 .270 6 .430<br />

Plasmacytoma C90 2 .980 2 .650<br />

Leukemias C91-95 6 .340 5 .080<br />

Other cancer 14 .760 15 .870<br />

Total cancer* C00-C97 w/o<br />

C44<br />

246.700 223.100<br />

* except non-melanotic skin cancer<br />

sis are statistics on prevalence and 5-year survival. Information on the<br />

distribution of tumour stages at first diagnosis has been included for the<br />

first time. The range of cancer sites covered has also been extended and<br />

now includes new cases of liver and gall-bladder cancer.<br />

Topical figures from the booklet are presented here. The RKI estimates<br />

that there were a total of 470.000 new cases of cancer (246.700 men,<br />

223.100 women) in <strong>German</strong>y in 2008. Compared to previous years,<br />

therefore, there was an overall annual increase of approx. 10.000 cases.<br />

The most common cancer types were again prostate cancer among men<br />

(approx. 63.400 cases) and breast cancer among women (71.700 cases),<br />

followed in each case by colorectal cancer (35.400 and 30.000 cases respectively;<br />

see table 1).<br />

This year for the first time, in line with the Federal <strong>Cancer</strong> Registry Data<br />

Act, the RKI can also make the data analysed for this issue of »<strong>Cancer</strong><br />

in <strong>German</strong>y« available to external scientists for further analyses on<br />

application to the ZfKD. The aim is to enable the data of the population-based<br />

cancer registries to be used more intensively for research as<br />

data quality improves. Furthermore, the ZfKD‘s website is currently<br />

being extended to also improve the range of information available to<br />

the interested public. Among other things, annual updates of the most<br />

important population-based cancer statistics for <strong>German</strong>y will in future<br />

complement the information provided in the biannual „<strong>Cancer</strong> in<br />

<strong>German</strong>y“ on the Internet.


0473<br />

<strong>Cancer</strong> survival in East and West <strong>German</strong>y within two decades<br />

after the fall of the Iron Curtain<br />

*L . Jansen1 , A . Gondos1 , A . Eberle2 , B . Holleczek3 , A . Katalinic4 , H . Brenner1,5 1Deutsches Krebsforschungszentrum (dkfz), Klinische Epidemiologie und<br />

Alternsforschung, Heidelberg, Deutschland, 2Universität Bremen, Bremer<br />

Krebsregister, Bremen, Deutschland, 3Krebsregister Saarland, Saarbrücken,<br />

Deutschland, 4Krebsregister Schleswig-Holstein, Lübeck, Deutschland,<br />

5GEKID <strong>Cancer</strong> Survival Working Group, Deutschland<br />

Background. Recent international collaborative studies have indicated<br />

that a major cancer survival gap between Eastern and Western Europe<br />

has persisted after the fall of the Iron Curtain, although survival rates<br />

in Eastern Europe have improved for several cancer sites. Prior to the<br />

<strong>German</strong> reunification, cancer survival was much lower in East than in<br />

West <strong>German</strong>y. Our study aimed to compare cancer survival between<br />

East and West <strong>German</strong>y in the early 21st century, i.e. the second decade<br />

after the <strong>German</strong> reunification.<br />

Methods. The study was based on survival data provided by 11 population-based<br />

<strong>German</strong> cancer registries covering 33 million people (40%<br />

of the population). Patients diagnosed with cancer in 1997–2006 were<br />

included in the analyses. Period analysis was used to calculate 5-year<br />

age-standardized relative survival rates for the 25 most common cancers<br />

for 2002–2006.<br />

Results. Patients diagnosed in West <strong>German</strong>y had better 5-year prognosis<br />

than patients in East <strong>German</strong>y for most (19 of 25) cancer sites.<br />

However, most cancer specific differences in survival between East and<br />

West <strong>German</strong>y were below 3 percent units. Exceptions were cancer of<br />

the gallbladder, skin melanoma and Non-Hodgkin’s lymphoma, with<br />

5-year relative survival being 5.8, 3.6 and 3.8 percent units higher in the<br />

West, and leukemia, showing higher 5-year relative survival in the East<br />

(52.9%) then in the West (48.8%).<br />

Conclusion. Within two decades after the fall of the Iron Curtain, differences<br />

in cancer survival between East and West <strong>German</strong>y are small.<br />

The <strong>German</strong> reunification prompted a rapid assimilation of the East<br />

<strong>German</strong> political and health care system into the West <strong>German</strong> system.<br />

Even though the economic conditions have remained difficult in<br />

East <strong>German</strong>y, the present study is encouraging in that it suggests that<br />

comparable health care provision may nevertheless enable comparable<br />

levels of cancer survival within a relatively short period of time.<br />

0505<br />

Employee survey in oncology practices in outpatient medical<br />

care<br />

*S . Osburg1 , T . Walawgo1 , E . Girma1 , R . Buschmann-Maiworm1 , S . Schmitz1 ,<br />

W . Baumann1 1WINHO, Köln, Deutschland<br />

Background. WINHO’s first employee survey was conducted in summer<br />

2011.The aim was to analyse the work situation of medical personnel in<br />

oncology practices nationwide. The basic idea was to establish a peer to<br />

peer benchmarking between office-based haematologists and oncologists<br />

working in practices in outpatient medical care allowing a comparison<br />

with the best practice.<br />

Materials and methods. The anonymous survey was based on the questionnaire<br />

“MIKE” developed by IMVR** and utilized by 780 employees<br />

working in 53 oncology practices in outpatient care. The used questionnaire<br />

contained 18 modules (consisting of 132 items in total) about<br />

working conditions, work situation, workload, overall job satisfaction,<br />

communication, education and training, and support by the management.<br />

For each module an aggregate value was calculated. Each oncology<br />

practice (with a minimum of ten survey responses) was compared to<br />

all participating oncology practices.<br />

Results. 570 employees (response rate 73%) out of 53 practices participated<br />

in the survey. Almost all of the interviewed employees are females<br />

working in therapy, reception and laboratory. 60% of them have been<br />

employed from 1 to less than 3 years. The highest scores were reached<br />

in the modules: “overall job satisfaction” (85.0%), “work equipment”<br />

(82.8%), “protection of health and safety standards at work” (79.3%), and<br />

“education/training” (78.8%). “Good working atmosphere”, “communication”<br />

and “workload” (54.2%) had the lowest scores. Results for the<br />

module “death and mourning” show, that most of the practices provide<br />

supportive measures for the employees. A small percentage of the employees<br />

would like to have additional support. An additional qualitative<br />

analysis about further “education/training” indicates that employees<br />

would like to receive more background knowledge about haematology<br />

and oncology, patient care, organisation of practices, and psycho-oncology.<br />

Conclusions. The first employee survey in WINHO’s oncology practices<br />

has been completed. It would be interesting to compare these results<br />

with data from employees of hospital-based oncology services. The<br />

results indicate that oncology practices could optimize their performance<br />

by improving employee management and leadership, as well as<br />

corporate communication. Oncology practices should focus on social<br />

relationships between members of the organisation expressed by “cohesiveness”<br />

and “support by the management”.<br />

KOK<br />

0104<br />

The transition from living despite cancer to living with cancer –<br />

A qualitative study of self-perception and life of breast cancer<br />

survivors<br />

*J . Breuer1 , H . Mayer1 1Universtität Wien, Institut für Pflegewissenschaft, Wien, Österreich<br />

Background. Breast cancer is the most prevalent malignancy among<br />

women in the industrialized world. Due to early detection and improved<br />

treatment methods, the rate of long-term breast cancer survivors<br />

increased over the last years and ranges now between 40 and 45%.<br />

Research questions. Based on the experiences of breast cancer survivors<br />

aspects of lifestyle and self-perception should be described and associated<br />

with theories of chronic disease. Insights into the experience of<br />

affected women should be given using the following questions: To what<br />

extent are the lives of breast cancer survivors still affected by cancer?<br />

Which coping strategies do breast cancer survivors use? Do breast cancer<br />

survivors experience themselves as chronically ill?<br />

Method. Nine qualitative interviews with breast cancer survivors were<br />

conducted, transcribed and analysed using the qualitative content analysis<br />

according to Mayring.<br />

Results. The diagnosis of breast cancer means the entry in a new reality<br />

for the women concerned. After completing treatment breast cancer<br />

survivors still are confronted with after-effects and fear of recurrence<br />

on the one hand. On the other hand they aspire to get back to normality.<br />

Trying to accept the cancer experience and the new perception of<br />

cancer being a thing of the past is an effective way to integrate illness<br />

in their lives. The findings of the conducted study show a transition of<br />

self perception from an ill patient to a healthy breast cancer survivor.<br />

This shift of perspectives between illness and health turns out to be a<br />

continuous challenge for the women concerned. However, breast cancer<br />

survivors cope with this situation and end up dealing with a new appreciation<br />

of life. Living despite cancer turns out to be living with cancer.<br />

This important shift means the unconscious transition from a patient to<br />

a breast cancer survivor for the women concerned.<br />

Conclusion. Surviving breast cancer means for the women concerned to<br />

have reached a milestone. Professional care needs to be supportive, offer<br />

guidance and meet the needs of breast cancer survivors.<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

151


Abstracts<br />

KOK<br />

0195<br />

Evaluation of the satisfaction with naturopathic treatments and<br />

consultations offered by specialised nurses for patients with<br />

breast and gynaecologic cancers<br />

P . Neuberger1 , K . Wettich-Hauser2 , C . Trautmann1 , A . Schneeweiss1 ,<br />

C . Sohn1,3 , T . Strowitzki4,5 , *C . v . Hagens4,5 1Universitäts-Klinikum, Gynäkologische Onkologie, NCT (Nationales Centrum<br />

für, Heidelberg, Deutschland, 2Universitäts-Hautklinik, Heidelberg,<br />

Deutschland, 3Universitätsfrauenklinik, Allgemeine Frauenheilkunde & Geburtshilfe,<br />

Heidelberg, Deutschland, 4Universitätsfrauenklinik, Gynäkologische<br />

Endokrinologie und Fertilitätsstörungen, Heidelberg, Deutschland,<br />

5Universitätsfrauenklinik, Ambulanz für Naturheilkunde, Gynäkologische<br />

Endokrinologie und Fertilitätsstörungen, Heidelberg, Deutschland<br />

Objective. During and after chemotherapy patients often complain of<br />

side effects which might improve with naturopathic treatments agreed<br />

with the physicians. They can be applied by specialized nurses or taught<br />

by them and practised at home as self help. A specialised nurse who<br />

is also part of the regular staff at the day-unit for chemotherapy of a<br />

large university breast and gynaecologic cancer centre had completed<br />

additional qualification courses in different methods of naturopathy<br />

and complementary medicine and offers this care to patients in need of<br />

it. These treatments and consultations were evaluated by the patients on<br />

the last day of their chemotherapy.<br />

Methods. Naturopathic treatments included the application of warm<br />

compresses and pads with various aromatic oils, a selection of different<br />

herbal teas, rhythmic massages following the method of Wegmann and<br />

Hauschka, inunctions with herbal oils and consultation and advice for<br />

the prevention and treatment of frequent side effects of chemotherapy.<br />

The evaluation was done during a period of 5 months. It consisted of a<br />

non-validated questionnaire which was adapted from another project<br />

and could be completed by the patients anonymously at the end of their<br />

chemotherapy. The evaluation was supplemented by checklists completed<br />

by the nursing staff when practising respective treatments and<br />

consultations during the same period. This allowed documentation of<br />

the amount of care given and the reactions observed. Data analysis was<br />

done in SPSS by one of the authors without contact to the patients.<br />

Results. Response rate was 81% (76 of 94) questionnaires and breast cancer<br />

was the diagnosis in 74 of the responders. Mean age was 54 ranging<br />

from 28 to 78 years. 66% of them had previous experience with a variety<br />

of complementary methods including Chinese or Oriental medicine,<br />

herbal therapy mainly as teas, fomentations and homeopathy. 96% of<br />

the responders had received at least one application and the most popular<br />

were herbal teas, compresses with lavender oil and consultations for<br />

the prevention and treatment of oral mucositis. 75% of the responders<br />

continued self help applications at home. Satisfaction with application<br />

and consultations was high and the offering was rated as very good or<br />

good by all responders.<br />

Conclusions. The application of naturopathic treatments and consultations<br />

during chemotherapy by specialized nurses was appreciated by<br />

patients with breast and gynaecologic cancers and rated as a valuable<br />

add-on method during chemotherapy<br />

152 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

KOK<br />

0322<br />

National survey of communication competence training in nursing<br />

education and further qualification<br />

*A . Spieser1 , C . Kloepfer1 , J . Weis1 1Klinik für Tumorbiologie, Reha-Forschung, Freiburg, Deutschland<br />

Purpose. Communication skills are needed for nursing staff working<br />

with cancer patients and their relatives. Within the <strong>German</strong> National<br />

<strong>Cancer</strong> Plan a working group (AG IV patient orientation) is addressing<br />

the topic how to improve a more patient-centered approach in cancer<br />

care. Against this background the Federal Ministry of Health has funded<br />

a national survey to get an overview of the training of communication<br />

skills in the basic education and post graduate qualification of<br />

nurses and physicians. This paper is only focusing on the study of the<br />

nurses’ qualification.<br />

Methods. Based on the previous work of the members of the working<br />

group in the National <strong>Cancer</strong> Plan as well as on an analysis of the requirements<br />

in the <strong>German</strong> Federal States guidelines for the education<br />

and post graduate qualification in communication skills for nurses, two<br />

questionnaires have been developed addressing the topic of communication<br />

skills: one questionnaire for the basic education of nurses and<br />

one for the post-graduate qualification of nurses working in oncology.<br />

The first questionnaire was sent to all <strong>German</strong> schools for nursing<br />

(n=655), the second questionnaire was sent to 355 institutes of post-graduate<br />

training for nurses.<br />

Results. The following results are focussing only on the survey of the<br />

basic education of nurses. The response rate was 36.5%. All focused modules<br />

are taught in all Federal States of <strong>German</strong>y. Communication with<br />

oncology patients is taught in most of the schools (86.2%). The means of<br />

lesson-units concerning communication skills were: in the module about<br />

informing, instructing and advising 24.1 units of 45 min; theoretical<br />

basis of communication 20.2 units; communication skills 19.7 units and<br />

communication in the process of dying 19.4 units. Nearly all schools use<br />

methods of role playing partially with video recording in the basic education<br />

of communication (90%). Role playing (RP) and video recording<br />

(VR) are less used for the education of communication with oncology<br />

patients (RP 47.6%; VR 21.4%) and patients in the process of dying (RP<br />

59.2%; VR 21.9%).<br />

Conclusions. In the nursing education in <strong>German</strong>y teaching and training<br />

of communication skills is a basic module. However, the practical<br />

training of communication especially with cancer patients and their<br />

relatives could be improved.


Autorenregister<br />

Autorenregister<br />

A<br />

Abdel-Rahman, S. 378<br />

Abel, K. 394<br />

Abel, U. 113<br />

Abeln, T. 137<br />

Abendroth, B. 364<br />

Abenhardt, W. 26, 58<br />

Abo Madyan, Y. 289<br />

Abt, E. -J. 467<br />

Adam, A. 332<br />

Adam, F. 392<br />

Adamietz, B. 452<br />

Adamietz, I. A . 75, 78, 136, 137<br />

Adeberg, S. 424<br />

Agaimy, A. 465, 466<br />

AGO Study Group and<br />

Mimosa Investigators 160<br />

Ahlborn, K. 498<br />

Aigner, J. 115, 199, 201<br />

Aktas, B. 80, 247<br />

Alakus, H. 311, 385<br />

Al-Batran, S. -E . 51, 503<br />

Albers, P. 81, 158, 196, 240,<br />

260, 369<br />

Albert, U. S. 24, 246<br />

Alizadeh, A. 233<br />

Allen, P. J. 504<br />

Allmendinger, A. J. 426<br />

Al-Nawas, B. 135, 467<br />

Alt, C. 228<br />

Altevogt, P. 39, 168, 169<br />

Al-Yacoub, N. 172<br />

Amthauer, H. 151<br />

Andergassen, U. 407, 437, 455<br />

Andreesen, R. 31<br />

Annecke, K. 94, 407<br />

Anoop Chandran, P. 456<br />

Ansell, S. M. 302<br />

Ansmann, L. 70, 306, 408<br />

Antoch, G. 196<br />

Armbruster, F. -P. 282<br />

Arndt, J. 361<br />

Arndt, V. 161, 347, 368<br />

Arnold, D. 371<br />

Arpe, N. 16<br />

Arsov, C. 196<br />

Aschoff, R. 468<br />

Attenberger, U. 198<br />

Atzpodien, J. 489<br />

Auer, G. 77<br />

Augustin, D. 94, 318<br />

Aumann, J. 251<br />

B<br />

Baccelli, I. 429, 448<br />

Bache, M. 167<br />

Bachmann, C. 272, 459<br />

Bachmann, E. 481<br />

Bachmann, S. 459<br />

Bader, P. 309<br />

Bader, W. 12<br />

Baier, M. 24, 31<br />

Bakhshandeh-Bath, A. 31<br />

Bandour, M. 252<br />

Bani, M. 181, 200, 452<br />

Baños, A. 180<br />

Banys, M. 497, 500<br />

Banz, C. 434<br />

Banzer, W. 409<br />

Bao, Q. 323, 395, 404<br />

Baraniskin, A. 174<br />

Barnes, B. 449<br />

Barski, D. 81<br />

Barth, M. 35<br />

Barth, P. 220<br />

Barth, S. 441<br />

Bartolozzi, C. 151<br />

Bartsch, H. H . 457, 487, 492<br />

Bartscht, T. 338<br />

Bauer, A. 145<br />

Bauer, J. 332<br />

Bauer, R. 64<br />

Bauer, S. 210, 277<br />

Bauer, T. 24, 33<br />

Bauerschlag, D. O. 387, 397<br />

Baum, S. 442<br />

Baumann, A. 337<br />

Baumann, F. 99, 140, 264<br />

Baumann, F. T. 100, 263, 333,<br />

461, 463<br />

Baumann, K. 139, 160, 224<br />

Baumann, K. H. 205<br />

Baumann, W. 305, 505<br />

Baumunk, D. 65, 138, 215<br />

Bayer, C. 181<br />

Bayer, C. M. 200<br />

Bayerl, A. 468<br />

Bazhin, A. 286, 303, 382<br />

Bechstein, W. 274<br />

Beck, A. 233<br />

Beck, D. 357<br />

Beck, T. 257<br />

Becker, C. 59<br />

Becker, F. 106<br />

Becker, H. 131, 133, 259, 304,<br />

308, 427, 435, 498, 499<br />

Becker, N. 290, 294<br />

Becker, S. 77, 391, 414, 497, 500<br />

Beckmann, M. 160, 279<br />

Beckmann, M. W. 67, 181, 200,<br />

205, 237, 241, 257, 423, 428, 437,<br />

452, 455, 472<br />

Begus-Nahrmann, Y. 208<br />

Behnam, N. 289<br />

Behrens, O. 112<br />

Behrmann, P. 417<br />

Beigel, F. 416<br />

Beißbarth, T. 499<br />

Beissbarth, T. 259, 304, 308,<br />

403, 427, 435<br />

Belau, A. 117, 160<br />

Benavente, Y. 294<br />

Beraldi, A. 153, 154<br />

Berchtold, S. 479<br />

Berger, A. 27, 32, 275<br />

Berger, F. 59<br />

Berger, M. 197, 202<br />

Berger, M. R. 282, 426<br />

Berger, S. 197, 202, 293, 426<br />

Bergmann, F. 168<br />

Bergmann, L. 52, 327<br />

Berking, C. 489<br />

Bernhörster, M. 409<br />

Bertram, H. 161<br />

Bertz, H. 73<br />

Bertz, J. 449<br />

Bhaskaran, K. 193<br />

Bhoorie, S. 89<br />

Bian, Y. 69<br />

Biedermann, T. 488<br />

Biester, I. 283, 285<br />

Bikowski, K. 68, 184<br />

Bilkenroth, U. 447<br />

Bingöl, C. 240<br />

Birkenkamp-Demtroder, K. 174<br />

Birkholz, K. 24, 31, 33<br />

Bischofs, E. 114<br />

Bitz, U. 152<br />

Bitzer, E. M. 454<br />

Blank, E. 358<br />

Blaschke, M. 398<br />

Blau, W. 346<br />

Blettner, M. 46, 60<br />

Bleul, T. 303<br />

Bloch, W. 99, 100, 140, 264,<br />

333, 461, 463<br />

Blohmer, J. -U. 300, 485<br />

Blondin, D. 196<br />

Blumenstengel, K. 312<br />

Blüthgen, N. 18<br />

Boch, A. 358<br />

Böcher, E. 51<br />

Boda-Heggemann, J. 198, 289<br />

Bode, C. 400<br />

Bodem, J. 87, 273<br />

Bodenbenner, M. 299<br />

Boffetta, P. 294<br />

Bogdanova, N. 40<br />

Bogoevska, V. 331<br />

Bohle, R. M. 35, 381<br />

Böhm, D. 175<br />

Böhm, M. 460<br />

Böhm, W. -D. 375<br />

Bohrer, M. 289<br />

Bohus, M. 334, 335, 335<br />

Bokemeyer, C. 333, 371, 417<br />

Bollschweiler, E. 311, 385<br />

Bolten, W. W. 60<br />

Bölükbas, S. 432, 436, 439, 443<br />

Bondong, S. 39<br />

Bonin, M. 487, 492, 495<br />

Book, K. 41<br />

Boos, J. 118, 309<br />

Bootz, F. 276<br />

Bornemann, A. 332<br />

Borschitz, T. 483<br />

Borski, J. 65<br />

Borutta, B. 454<br />

Böse, S. 145<br />

Bossow, S. 479<br />

Braess, J. 361<br />

Brähler, E. 41, 43, 98, 110,<br />

189, 293<br />

Braicu, E. 451<br />

Braicu, E. I. 485<br />

Braicu, I. 39<br />

Braisch, U. 128<br />

Brand, S. 416<br />

Brandes, M. 118<br />

Brandt, I. 241<br />

Brase, J. C. 367<br />

Braun, F. 172<br />

Braun, M. 140<br />

Braun, S. 18<br />

Braunschweig, T. 77<br />

Bräutigam, K. 387, 397<br />

Brechtel, A. 184<br />

Breindl, S. 82<br />

Breitenbücher, F. 129<br />

Bremer, M. 270, 470<br />

Brennan, B. 218<br />

Brennan, P. 294<br />

Brenner, H. 90, 161, 179, 347,<br />

368, 473, 476<br />

Breuer, F. 360<br />

Breuer, J. 104<br />

Brinkmann, A. 118<br />

Brock, M. 431<br />

Brocker, K. 228<br />

Brockhoff, G. 76, 82, 109<br />

Brodersen, C. 331<br />

Bronger, H. 182<br />

Bruch, H. -P. 77, 331<br />

Brucker, C. 108<br />

Brückl, W. 475<br />

Brümmendorf, T. 29<br />

Brummer, T. 18<br />

Brüning, F. 155, 225<br />

Brunner, A. 280<br />

Brunner, G. 489<br />

Brunner, M. 277<br />

Brunner, T. 274<br />

Bruno, B. 45<br />

Bruns, C. 274, 395<br />

Bruns, C. J. 227, 249, 323,<br />

404, 416<br />

Bubendorf, L. 423<br />

Bucan, V. 239<br />

Buchbender, C. 196<br />

Buchholz, M. 222, 223<br />

Buchholz, S. 76, 82, 109, 236<br />

Budach, V. 346<br />

Buecklein, V. 378<br />

Bühler, H. 136, 137<br />

Bühne, C. 319<br />

Bulashevska, S. 382<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

153


Autorenregister<br />

Bulut, D. 222, 223<br />

Bünger, S. 314<br />

Büning, J. 331<br />

Bunse, J. 17<br />

Büntzel, H. 413<br />

Büntzel, J. 413<br />

Burger, M. 84<br />

Burges, A. 117, 139, 160,<br />

205, 340<br />

Burke, T. 277<br />

Burock, S. 355<br />

Burwinkel, B. 201, 429<br />

Busch, C. 275, 321, 332<br />

Buschmann-Maiworm, R. 305,<br />

505<br />

Büttner, M. 296<br />

Buttstädt, N. 32<br />

Buzug, T. M. 224, 391<br />

C<br />

Cadron, I. 39<br />

Cahill, M. A. 493<br />

Camaj, P. 227, 249, 395, 404<br />

Cameron, S. 393, 398<br />

Canto, M. I. 504<br />

Canzler, U. 117, 160<br />

Castillo-Tong, D. 39<br />

Chan, K. 233<br />

Chang-Claude, J. 368<br />

Chekerov, R. 485<br />

Chen, R. 302<br />

Chen, Z. 175<br />

Chin, R. K. 233<br />

Choschzick, M. 243<br />

Christgen, M. 318<br />

Christiansen, H. 393<br />

Chromik, A. 222, 223<br />

Clemens, M. 318<br />

Cocco, P. L. 294<br />

Cohen, J. D. 477<br />

Cohnert, T. 337<br />

Cole, A. 470<br />

Combs, S. E. 424, 446, 453<br />

Connors, J. M. 302<br />

Conrad, N. 299<br />

Conradi, L. C. 259, 304, 308, 435<br />

Contreras-Trujillo, H. 233, 477<br />

Cornely, O. A. 207<br />

Craft, A. 218<br />

Croner, R. 141, 217, 288, 465,<br />

466, 486<br />

Csernok, A. 162<br />

Cuk, K. 429<br />

D<br />

Dahlmann, M. 261<br />

Dahm, S. 449<br />

Dal Molin, M. 504<br />

Dalerba, P. 477<br />

Dall, P. 67, 108<br />

Daniel, P. 34<br />

Danker, H. 71, 342<br />

Dannhardt, G. 482<br />

Darb-Esfahani, S. 451<br />

Däßler, K. -U. 51<br />

de Gregorio, N. 160<br />

de Sanjosé, S. 294<br />

de Wit, M. 29<br />

Debatin, K. -M. 57, 63<br />

Debus, J. 424, 446, 453<br />

Decker, T. 26<br />

Degenhardt, T. 318<br />

Dehnke, E. 326<br />

Delorme, S. 290<br />

Demirel, C. 137<br />

Dengler, J. 266<br />

Deniz, M. 163<br />

Denkert, C. 451<br />

Di Fazio, P. 351, 353, 356, 362<br />

Diaz, L. A. 504<br />

Dieckmann, C. 169<br />

Diedrich, K. 224<br />

Dienemann, H. 290, 367<br />

Dierks, M. -L. 454<br />

Diermeier-Daucher, S. 76, 82,<br />

109<br />

Dietrich, D. 469<br />

Dietz, A. 189<br />

Difilippantonio, M. 77<br />

Dinkel, A. 170, 474<br />

Dinsart, C. 372<br />

Dirksen, U. 218, 309, 341<br />

Distel, L. 296, 364, 421, 430<br />

Distelrath, A. 266<br />

Distler, J. 469<br />

Dittmar, J. -O. 424<br />

Dittmer, A. 241<br />

Dittmer, C. 434<br />

Dittmer, J. 241<br />

Dittrich, R. 237, 241, 279<br />

Djafarzadeh, R. 323<br />

Doehn, C. 52<br />

Döhler, N. 317<br />

Dold, S. 183, 185<br />

Domschke, C. 448<br />

Dönges, T. 439<br />

Dörk, T. 162<br />

Dörk-Bousset, T. 40<br />

Dorst, J. 110<br />

Douglas, C. 218<br />

Drebber, U. 379<br />

Dreger, P. 334, 335, 335<br />

Dreier, M. 454<br />

Driller, E. 123<br />

Drücke, D. 326<br />

du Bois, A. 61, 117, 139, 203,<br />

205, 287, 330<br />

du Bois, O. 330<br />

Dünisch, P. 64<br />

154 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

E<br />

Eberle, A. 161, 473<br />

Eberle, J. 32, 34, 172, 178<br />

Eberlein, M. 432, 436, 439, 443<br />

Eckel, R. 122, 295<br />

Eckert, A. W. 167, 447, 460<br />

Edil, B. H. 504<br />

Eggemann, H. 300<br />

Eggermont, A. M. M. 484<br />

Eggert, K. 276<br />

Eggert, T. 431<br />

Ehlert, K. 309<br />

Eibl, H. 484<br />

Eich, H. -T. 379<br />

Eichbaum, M. 114, 115, 228, 273<br />

Eichenseder-Seiss, U. 468<br />

Eichinger, M. 290<br />

Eickhoff, R. 114<br />

Eidtmann, H. 300<br />

Eiermann, W. 300<br />

Eimer, C. 498<br />

Eisele, G. 456, 506<br />

Ellinger, J. 106<br />

Ellmann, C. 438<br />

Ellwart, J. W . 395, 416<br />

Elser, G. 61<br />

Elter, T. 100, 119<br />

Emeny, R. 122, 295<br />

Emons, G. 67, 117, 160, 396,<br />

498, 499<br />

Engehausen, D. G. 91<br />

Engel, J. 122, 127, 128, 153, 295<br />

Engel, M. 87<br />

Engelhard, K. 91<br />

Engels, A. 58<br />

Engert, A. 302<br />

Englhart, E. 59<br />

Eppelmann, U. 84<br />

Erdmann-Reusch, B. 464<br />

Ernst, G. 468<br />

Ernst, J. 98, 110<br />

Ernstmann, N. 123, 130<br />

Eshleman, J. R. 504<br />

Eshraghi, P. 208<br />

Essing, M. M. 360<br />

Ettl, J. 182<br />

Eulenburg, C. 243<br />

Evangelou, K. 88<br />

Ewald, C. 64<br />

Ewald-Riegler, N. 330<br />

Exner, A. -K. 283, 285<br />

Exner, C. 299<br />

Ezziddin, S. 81<br />

F<br />

Faber, M. 230, 231, 232<br />

Fabry, B. 241<br />

Fait, I. 187<br />

Farthmann, J. 330<br />

Fasching, P. A. 181, 200, 241,<br />

247, 407, 452<br />

Fechner, H. 178<br />

Fecker, L. F. 178<br />

Fehlker, M. 72<br />

Fehm, T. 80, 111, 114, 214, 247,<br />

265, 407, 459, 479, 487, 488, 491,<br />

492, 494, 495, 496, 497, 500<br />

Feiten, S. 50<br />

Feldmann, E. -M. 168<br />

Fernebro, E. 180<br />

Fersis, N. 114<br />

Feyerabend, S. 31<br />

Fichtmer, I. 13<br />

Fichtner, I. 251, 261, 331<br />

Fichtner-Feigl, S. 344<br />

Ficker, J. 475<br />

Field, J. 469<br />

Fietkau, R. 143, 274, 421<br />

Finas, D. 224, 360, 437<br />

Fischer, A. 436<br />

Fischer, D. 434<br />

Fischer, M. 392<br />

Fisseler-Eckhoff, A. 432<br />

Fissmer, A. 100<br />

Fleischhacker, M. 469<br />

Flemming, N. 469<br />

Flier, A. 222, 223<br />

Foretova, L. 294<br />

Förtsch, T. 288<br />

Fotopoulou, C. 330, 451, 485<br />

Frank, M. 256<br />

Frank, N. 256<br />

Frank, O. 266<br />

Franke, B. 207<br />

Frauenfeld, A. 198<br />

Frechen, S. 177, 419<br />

Freier, K. 68, 87, 156<br />

Fretault, N. 191<br />

Freudlsperger, C. 69<br />

Frey, B. 143<br />

Freyberger, H. 269<br />

Fricke, H. -C. 114<br />

Friebel, K. 32<br />

Friedrichs, K. 108, 300<br />

Fries, S. 52<br />

Friese, K. 94, 257, 407, 437,<br />

455, 472<br />

Friesen, C. 55, 56, 57, 63<br />

Friesenhahn, V. 50<br />

Frisse, S. 461, 463<br />

Fritsche, R. 18<br />

Fritze, F. 17<br />

Fritzsche, K. 73<br />

Fruehauf, S. 360<br />

Fruhmann, J. 337<br />

Fuchs, M. 188<br />

Funke, K. 412<br />

Funke, S. 328, 480<br />

Fuxius, S. 329<br />

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Gabbert, H. E. 165, 328, 410, 480<br />

Gade, S. 367<br />

Gädeken, T. 338<br />

Gaedcke, J. 259, 304, 308, 427,<br />

435, 498, 499<br />

Gaertner, J. 177, 419<br />

Gaipl, U. 143<br />

Gaisser, A. 411, 418<br />

Galalae, R. 136<br />

Galle, P. R. 372, 383, 481<br />

Galonske, K. 75, 78<br />

Gamelin, E. 180<br />

Gamper, E. 193<br />

Gansera, L. 293<br />

Garbe, C. 275, 321, 332, 357<br />

Gargula, S. 120, 121<br />

Gärtner, J. 95, 96<br />

Gasser, M. 230, 231, 232,<br />

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Gauler, T. C . 129<br />

Gebauer, G. 114, 500


Gebhard, S. 175<br />

Gehrmann, M. 175<br />

Geigl, J. 337<br />

Geinitz, H. 188, 468<br />

Geismann, C. 168<br />

Geissler, E. K. 89, 211, 284, 336<br />

Gellert, K. 17<br />

Gemoll, T. 77, 314<br />

Gerber, B. 191, 407<br />

Gerecke, C. 187<br />

Gerland, L. 461, 463<br />

Germ, I. 264<br />

Germer, C. -T. 230, 231, 232,<br />

256, 258<br />

Gerstein, J. 270<br />

Gerstenhauer, M. 363<br />

Gerstner, A. 116<br />

Gerstner, A. O . 276<br />

Geue, K. 43<br />

Ghadimi, B. M. 427, 435<br />

Ghadimi, M. 259, 304, 308,<br />

498, 499<br />

Gharaei, D. 283, 285<br />

Ghezel-Ahmadi, D. 432<br />

Gieseking, F. 243<br />

Gieseler, F. 338, 440<br />

Giesler, J. 457<br />

Giessing, M. 369<br />

Gilet, H. 389<br />

Gillissen, B. 34<br />

Girma, E. 505<br />

Gitsch, G. 83, 148<br />

Glebe, D. 362<br />

Glenz, A. 192<br />

Glossmann, J. -P. 66, 177,<br />

207, 412<br />

Gluz, O. 318, 319<br />

Göbel, H. 209<br />

Goebell, P. J. 52<br />

Goepfert, K. 383<br />

Goetze, T. 245<br />

Goggins, M. G. 504<br />

Göhl, J. 486<br />

Göhler, T. 26<br />

Golcher, H. 216, 274<br />

Goldmann, T. 112<br />

Gölz, T. 73<br />

Gondos, A. 90, 473, 476<br />

Gonschior, A. -K. 389<br />

Gonsior, A. 375<br />

Gopal, A. K. 302<br />

Görse, R. 363<br />

Gosheger, G. 118<br />

Gottardo, F. 84<br />

Götte, M. 100<br />

Götze, H. 110, 293<br />

Gowda, N. 494<br />

Grabenbauer, G. 274<br />

Grade, M. 259, 304, 308, 427,<br />

435, 498, 499<br />

Gräfingholt, S. 264<br />

Grage-Griebenow, E. 168<br />

Greil, R. 180<br />

Greiner, M. 35<br />

Greiner, W. 45<br />

Griesser, H. 423<br />

Grimm, M. -O. 400<br />

Grimmel, C. 488<br />

Grimmer, D. 464<br />

Grimmig, T. 230, 231, 232,<br />

256, 258<br />

Grinstein, E. 480<br />

Grischke, E. 459<br />

Grischke, E. -M. 272<br />

Grobholz, R. 35<br />

Groh, N. 241<br />

Grohé, C. 97<br />

Gros, S. 395<br />

Groschek, M. 26, 51<br />

Groß, M. -L. 290<br />

Grosu, A. L. 105<br />

Grube, S. 64<br />

Gründker, C. 67, 396<br />

Grünwald, V. 327, 346<br />

Gruss, O. 426<br />

Gschwend, J. 33, 170, 176,<br />

250, 252<br />

Guderian, G. 52<br />

Guilherme, G. 233<br />

Gunga, M. 471<br />

Günzel, A. 361<br />

Gust, R. 507<br />

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Haas, M. 430<br />

Haase, S. 173<br />

Haberer, T. 453<br />

Haberland, J. 449<br />

Häberle, L. 386<br />

Habermann, J. 77<br />

Habermann, J. K. 331<br />

Habermehl, D. 424, 453<br />

Hack, C. 452<br />

Hackl, C. 211<br />

Hadaschik, B. A . 5<br />

Hadji, P. 24, 33, 46, 60<br />

Hagenbeck, C. 407<br />

Hagmann, R. 411, 418<br />

Hahn, S. 174, 222, 223<br />

Haidinger, R. 46<br />

Hallek, M. 177<br />

Hallscheidt, P. 228<br />

Hamm, A. 269<br />

Hamm, A. O. 126<br />

Hamm, C. 126, 269<br />

Hamm, H. J. 15<br />

Hamm, T. 51<br />

Hammad, S. 175<br />

Hammer, T. 74<br />

Hanf, V. 326<br />

Hänggi, D. 19<br />

Hanker, L. 160<br />

Hanker, L. C. 67, 139, 205, 329<br />

Hannig, C. V. 51<br />

Happold, C. 456<br />

Harbeck, N. 46, 60, 94, 177, 226,<br />

318, 319, 407, 419, 461, 463<br />

Hardes, J. 118<br />

Häring, J. 204<br />

Harter, P. 61, 67, 139, 160,<br />

203, 287, 329<br />

Hartkopf, A. 479, 497<br />

Härtl, K. 41<br />

Hartmann, A. 200, 216, 304,<br />

438, 475<br />

Hartmann, D. 208<br />

Hartmann, J. 326, 339, 346<br />

Hartmann, M. 229<br />

Hartmann, P. 488<br />

Hasenburg, A. 160, 205, 330<br />

Hatina, J. 125<br />

Hauss, J. 274<br />

Hautmann, S. 428<br />

Hecht, G. 144<br />

Heck, A. 41<br />

Heck, M. 250, 252<br />

Heck, T. 33<br />

Hedderich, J. 287<br />

Hedderich, M. 434<br />

Hegele, A. 142, 155, 220, 225<br />

Hegewisch-Becker, S. 26, 51<br />

Heidecke, C. -D. 331<br />

Heidrich-Lorsbach, E. 329<br />

Heikaus, S. 81, 165, 328, 480<br />

Heil, J. 90, 376<br />

Heilenkötter, U. 112<br />

Heim, M. E. 58<br />

Heimann, S. 207<br />

Hein, A. 181<br />

Heinecke, A. 489<br />

Heinrich, B. 383<br />

Heinrich, G. 437<br />

Heinrich, K. 224<br />

Heinrichs, A. 434<br />

Heiss, M. M. 340, 371, 389<br />

Heitland, W. 188<br />

Hellerbrand, C. 336<br />

Hellman, U. 77<br />

Hellmich, M. 419<br />

Hellwig, B. 175<br />

Hempel, A. M. 287<br />

Hengstler, J. 175<br />

Hennig, M. 371, 389<br />

Henrici, A. 356<br />

Henze, N. 365<br />

Hepp, P. 407, 437, 472<br />

Herbold, T. 311, 385<br />

Herkommer, K. 170<br />

Hermann, B. 358<br />

Hermann, D. 263<br />

Herold, M. 209<br />

Herr, D. 316<br />

Herr, R. 18<br />

Herrmann, E. 106<br />

Herrmann, P. 261<br />

Herschbach, P. 41, 153, 170, 474<br />

Herth, F. F. 367<br />

Hertrampf, K. 16<br />

Herzog, W. 184<br />

Hess, C. F. 393<br />

Heubner, M. 124<br />

Heusinger, K. 452<br />

Heussel, C. P. 290<br />

Heußner, P. 153, 154, 354<br />

Heymanns, J. 50<br />

Heywang-Köbrunner, S. H. 128<br />

Hiddemann, W. 154, 354,<br />

361, 378<br />

Hielscher, T. 39<br />

Hierner, R. 19<br />

Hilbig, J. 79<br />

Hildebrandt, T. 181<br />

Hilfrich, J. 300<br />

Hilfrich, R. 423, 428<br />

Hillemanns, P. 160<br />

Hiller, B. 54<br />

Hilpert, F. 61, 67, 160, 205, 287<br />

Hindenburg, H. -J. 60<br />

Hinke, A. 108<br />

Hinske, C. 51<br />

Hinz, A. 193<br />

Hipp, M. 468<br />

Hirnle, P. 500<br />

Hirschfeld, M. 83, 148<br />

Hirth, R. 107<br />

Hjorth, L. 218<br />

Ho, P. L. 233<br />

Hoek, K. 332<br />

Hof, H. 199<br />

Hofele, C. 68<br />

Hofer, S. 456<br />

Hoffmann, B. 102<br />

Hoffmann, C. 118, 341<br />

Hoffmann, I. 163, 237, 241, 279<br />

Hoffmann, J. 68, 87, 155,<br />

156, 495<br />

Hoffmann, O. 111<br />

Hoffmann, T. 19<br />

Hoffmeister, M. 368<br />

Hofheinz, R. 180, 503<br />

Hofmann, R. 142, 155, 220, 225<br />

Hofstädter, F. 363<br />

Hohenberger, W. 120, 121, 131,<br />

133, 141, 216, 217, 274, 288, 402,<br />

465, 466, 486<br />

Hohenfellner, M. 5<br />

Hoiczyk, M. 277<br />

Holdenrieder, S. 106<br />

Holleczek, B. 127, 179, 473, 476<br />

Hollerbuhl, H. 17<br />

Hölscher, A. H. 311, 385<br />

Hölzel, D. 128<br />

Holzgreve, A. 352<br />

Holzheu, I. 316<br />

Holzinger, M. 339<br />

Homann, N. 503<br />

Honegger, J. 332<br />

Hönig, A. 437<br />

Hoppenworth, U. 392<br />

Horger, M. 234, 235<br />

Horke, S. 135<br />

Hormann, I. 55, 56, 57, 63<br />

Horn, L. -C. 375<br />

Hossmann, M. 484<br />

Hozaeel, W. 503<br />

Hristamian, A. 67<br />

Hruban, R. H. 504<br />

Huber, B. 183<br />

Huber, G. 102, 103, 335<br />

Huber, J. 86<br />

Huber, P. E. 424<br />

Hübner, J. 31<br />

Hug, S. 39<br />

Hummler, S. 102, 103, 113<br />

Hünerbein, M. 134<br />

Hunger, A. 343<br />

Huober, J. 500<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

155


I<br />

Autorenregister<br />

Igl, B. -W. 77<br />

Ihorst, G. 73<br />

Ihrig, A. 86<br />

Illerhaus, G. 503<br />

Illmer, T. 266<br />

Imkamp, F. 40<br />

Ischenko, I. 227, 249, 404<br />

Issels, R. 374, 378, 441, 484<br />

Ivascu, C. 469<br />

Izbicki, J. 331, 395<br />

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Jabar, S. 309<br />

Jabari, S. 351<br />

Jackisch, C. 46, 60, 117, 160, 300<br />

Jacob, A. L. 151<br />

Jaehde, U. 317<br />

Jaekel, O. 453<br />

Jaenicke, F. 243<br />

Jäger, B. 257<br />

Jäger, D. 184, 210, 334, 335<br />

Jäger, E. 409, 503<br />

Jäger, M. 83, 148<br />

Jahn, P. 145, 471<br />

Jakob, A. 52, 173<br />

Jallal, N. 410<br />

Janitzky, A. 65, 215<br />

Janjetovic, S. 417<br />

Janni, W. 94, 247, 257, 407,<br />

437, 455, 500<br />

Jansen, L. 347, 368, 473, 476<br />

Janssen, J. 52<br />

Janssen, S. 40, 470<br />

Jauch, K. -W. 227, 249, 323,<br />

404, 416<br />

Jensen, K. 273<br />

Jensen, W. 333<br />

Jo, P. 141, 259, 304, 308, 427, 435<br />

Joens, T. 451<br />

Johannes, M. 367<br />

Johannsen-Wrana, J. 15<br />

Joist, A. 267<br />

Jönsson, L. 277<br />

Jordan, A. 134<br />

Jörnvall, H. 77<br />

Josten, K. M. 462<br />

Jückstock, J. 257<br />

Jud, S. M. 181, 452<br />

Judson, I. 218<br />

Jueckstock, J. 94, 472<br />

Juhasz-Böss, I. 381, 394, 442<br />

Jung, J. 123, 130<br />

Jung, K. 259, 304, 308<br />

Jung, V. 35, 106<br />

Jungbluth, T. 331<br />

Jungnickel, H. 274<br />

Junker, K. 327, 400<br />

Junkermann, H. 201<br />

Jürgens, H. 218, 309, 341<br />

Just, L. 332<br />

156 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

K<br />

Kaatz, R. 331<br />

Kächele, V. 51<br />

Kaduthanam, S. 367<br />

Kahmann, L. 181, 200<br />

Kähnert, H. 283, 285<br />

Kaiser, T. 214<br />

Kalder, M. 24<br />

Kalender, W. A. 241<br />

Kalff, R. 64<br />

Kampmann, E. 374, 441<br />

Kannisto, P. 203<br />

Kappler, M. 167, 447, 460<br />

Karadaglis, G. 88<br />

Karakhanova, S. 286<br />

Karger, A. 158<br />

Karstens, J. H. 40<br />

Karthaus, M. 180<br />

Kasimir-Bauer, S. 80, 111,<br />

124, 247<br />

Kaskel, P. 277<br />

Kasper, S. 129<br />

Katalinic, A. 473, 476<br />

Kates, R. 318<br />

Kaufmann, M. 300<br />

Kauka, A. 24<br />

Kaul, M. 343<br />

Keck, B. 438<br />

Keilholz, U. 327<br />

Keimling, M. 162, 163<br />

Keller, A. 358, 456<br />

Kellermann, J. 141<br />

Kemmner, W. 72<br />

Kendziorra, E. 498, 499<br />

Kennedy, D. A . 302<br />

Kerschgens, C. 352<br />

Keschke, C. B . 447<br />

Kesselring, R. 344<br />

Khillimberger, K. 481, 482<br />

Kiechle, M. 94, 182, 407<br />

Kiehl, M. 360<br />

Kieschke, J. 144<br />

Kiesilewicz, G. 363<br />

Kim, M. 232, 256<br />

Kim, Y. -J. 35<br />

Kimmig, R. 111, 124<br />

Kindler, M. 52<br />

Kinzler, K. W. 504<br />

Kisro, J. 331<br />

Kitz, J. 304<br />

Klar, E. 331<br />

Klare, P. 329<br />

Klasen, J. 196<br />

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Kleeberg, U. R. 305<br />

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Klein, G. 214<br />

Klein, G. 305<br />

Klein, O. 462<br />

Klein, P. 60, 465<br />

Kleinert, E. 98<br />

Kleinschmidt, J. 343<br />

Kliesch, S. 84<br />

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363<br />

Klockmeier, K. 355<br />

Kloepfer, C. 298, 322<br />

Klotz, T. 315<br />

Klug, S. J. 375<br />

Kluge, E. 246<br />

Klumpen, H. -J. 151<br />

Knetzger, S. -M. 181<br />

Kniemeyer, O. 400<br />

Ko, Y. 317<br />

Kobelt, D. 251<br />

Koch, A. 125, 209<br />

Koch, L. 161, 347<br />

Koch, M. 423<br />

Koch, T. 241<br />

Kochanneck, A. 136, 137<br />

Koenig, J. 163<br />

Koepke, A. 152<br />

Kohl, S. 120<br />

Köhler, A. 52<br />

Köhler, N. 293<br />

Köhne, C. -H. 74, 180<br />

Kölbl, H. 175<br />

Koller, M. 16<br />

Kollmar, O. 93, 183, 185<br />

Köllner, M. 154<br />

König, A. 331<br />

König, K. 60<br />

Königsberg, R. 280<br />

Königsmann, M. 51<br />

Koning, G. A. 484<br />

Konrad, R. 316<br />

Kootz, B. 265, 487, 492<br />

Köpke, T. 52<br />

Koppitz, F. 241<br />

Köppler, H. 50<br />

Korf, U. 403<br />

Korfee, S. 464<br />

Korniienko, O. 169<br />

Kornmayer, M. 170<br />

Kortmann, R. -D. 293<br />

Kosakowski, J. 289<br />

Koter, S. 337<br />

Kovacheva, M. 197<br />

Kowalski, C. 70, 306, 408<br />

Koziolek, E. 343<br />

Kraemer, B. 500<br />

Kramer, F. 427<br />

Kramer, J. 138<br />

Kramer, S. 454<br />

Kraus-Tiefenbacher, U. 358<br />

Krawczyk, N. 497, 500<br />

Kraywinkel, K. 449<br />

Krebs, S. 227<br />

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163, 316, 437<br />

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Kreusel, I. 454<br />

Kriegel, C. 375<br />

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Kröger, N. 400<br />

Kröning, H. 51, 301<br />

Kross, H. 326<br />

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Krüger, A. 169<br />

Krüger, M. 135<br />

Kube, U. 52, 176<br />

Kübler, A. 25<br />

Kübler, H. 250<br />

Kubo, S. 12<br />

Kudelin, N. 443<br />

Kuhfahl, J. 365<br />

Kuhlemann, J. 196<br />

Kuhlmann, J. D. 124<br />

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Kühr, L. J. 113<br />

Kukk, E. 153<br />

Kulms, D. 357<br />

Kümmel, S. 300, 485<br />

Kunath, F. 438<br />

Kuner, R. 367<br />

Kunz, M. 27<br />

Kunzmann, V. 360<br />

Kurbacher, C. M. 360<br />

Kurtova, A. V. 233<br />

Kuru, T. H. 5<br />

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Kuß, O. 145<br />

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Ladenstein, R. 218, 309<br />

Laffers, W. 116, 276<br />

Lammer, J. 151<br />

Lampe, J. 479<br />

Lamszus, K. 506<br />

Landenberger, M. 145, 471<br />

Landfeldt, E. 277<br />

Landvogt, C. 462<br />

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Lang, S. 19<br />

Lang, S. A. 211, 284, 336<br />

Lange, J. 274<br />

Langenhorst, J. 352<br />

Langer, P. 27<br />

Langheinrich, M. 217, 402<br />

Larsen, E. K. 302<br />

Lathan, B. 58<br />

Latta, S. 461, 463<br />

Lattrich, C. 204<br />

Lau, A. 145<br />

Laubert, T. 331<br />

Lauer, U. M. 479<br />

Laumeier, T. 225<br />

Lautner, M. H. W. 460<br />

Lavall-Gottschalt, M. 192<br />

Lazaridis, A. 239<br />

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le Coutre, P. 266<br />

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Lebahn, H. 305<br />

Lebrecht, A. 175<br />

Lechel, A. 208<br />

Lee, H. -W. 208<br />

Lehmann-Laue, A. 189<br />

Lehnerdt, G. 19<br />

Lehnert, H. 440<br />

Leib, O. 55, 56, 57<br />

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Leingartner, A. 442<br />

Lemm, M. 261


Lengerke, C. 496<br />

Lenz, F. 114<br />

Lerchenmüller, C. 26, 51<br />

Lerner, S. 233<br />

Letocha, H. 180<br />

Lewis, I. 218<br />

Li, L. 484<br />

Lichtenegger, W. 191, 437,<br />

455, 485<br />

Lichter, P. 201<br />

Lie, B. 112<br />

Liebenberg, V. 469<br />

Liedtke, C. 318, 319<br />

Liehr, U. -B. 65, 213, 215<br />

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Liloglou, T. 469<br />

Limmroth, C. 378<br />

Lincke, T. 193<br />

Lindena, G. 433<br />

Lindhofer, H. 371<br />

Lindner, L. 378, 484<br />

Linnebacher, M. 331<br />

Linnig, M. 481<br />

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Linxweiler, M. 35<br />

Litzenburger, U. 320<br />

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Loehberg, C. R . 241, 452<br />

Löhberg, C. R . 181, 200<br />

Lohr, F. 198<br />

Löppenberg, B. 431<br />

Lordick, F. 188<br />

Lorenz, R. 257, 455<br />

Lotan, Y. 233<br />

Lottspeich, F. 141<br />

Lotz, L. 237, 241, 279<br />

Lotze, C. 464<br />

Löw, A. 126<br />

Löwenstein, Y. 187<br />

Lubbe, D. 205<br />

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Lüdtke-Buzug, K. 224<br />

Lungwitz, A. 409<br />

Lütge, M. 423<br />

Lux, M. P. 181, 200, 241, 452<br />

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M. Hossini, A. 34<br />

Maass, N. 45, 387, 397<br />

Maché, Y. -N. 387<br />

Machleidt, A. 76, 109, 236<br />

Machtens, S. 140<br />

Maden, Z. 203<br />

Mäder, U. 128<br />

Madhavan, D. 429<br />

Magheli, A. 138<br />

Maghnouj, A. 174<br />

Mahner, S. 39, 117, 160, 205,<br />

243, 329, 330<br />

Mahotka, C. 165, 328, 480<br />

Maintz, C. 51<br />

Mair, R. 404<br />

Maisel, T. 128<br />

Maitra, A. 504<br />

Malfertheiner, P. 72, 151<br />

Malik, E. 74<br />

Mallidis, C. 84<br />

Mallmann, P. 419<br />

Mang, A. 391, 414<br />

Marec Bérard, P. 218<br />

Markmann, S. 300, 318<br />

Marmé, F. 39, 90, 115, 199,<br />

201, 448<br />

Marschner, N. 26, 173<br />

Marten-Mittag, B. 474<br />

Marti, L. 274<br />

Martin, M. 344<br />

Martin, R. 116, 477<br />

Marx, S. 55, 56, 57<br />

Massacesi, C. 191<br />

Matthaei, H. 504<br />

Matthes, N. 230, 231, 232, 258<br />

Matula, S. 331<br />

Maurer, T. 33, 250<br />

Mauz-Körholz, C. 145<br />

Mavrova, R. 381, 442<br />

May, C. 97<br />

Mayer, A. 381<br />

Mayer, C. 114<br />

Mayer, F. 346<br />

Mayer, H. 104<br />

Maynadié, M. 294<br />

Mazzaferro, V. 89<br />

Mecklenburg, V. 220<br />

Mehlhorn, G. 423, 428<br />

Mehrholz, J. 464<br />

Meier, F. 275, 332, 357<br />

Meier, R. 204<br />

Meier, S. 354<br />

Meier, W. 117, 139, 160<br />

Meier-Meitinger, M. 452<br />

Meincke, M. 266<br />

Meinhold-Heerlein, I. 387, 397<br />

Meister, E. F. 71<br />

Meister, M. 367<br />

Melhorn, G. 315<br />

Mellstedt, H. 451<br />

Melzer, M. 439<br />

Menger, M. D. 93, 183, 185<br />

Mentze, M. 485<br />

Mergenthaler, H. -G . 346<br />

Mergenthaler, U. 50<br />

Merkel, S. 120, 121, 131, 133,<br />

274, 288, 402, 486<br />

Metzger, R. 311, 385<br />

Metzner, S. 264<br />

Meyer, A. 40, 71, 270, 342<br />

Meyer, M. 128<br />

Meyer, M. 412<br />

Michel, M. -S. 289<br />

Michelfelder, S. 343<br />

Michon, J. 218<br />

Miese, F. 196<br />

Milani, V. 378<br />

Milanova, G. 497<br />

Milanovic, D. 105<br />

Milde-Langosch, K. 380<br />

Miller, K. 138<br />

Miltner, E. 55, 56, 57, 63<br />

Mineur, L. 180<br />

Möbs, M. 172<br />

Modugno, C. 429, 448<br />

Moehler, M. 383, 389, 481, 482<br />

Moergel, M. 135, 467<br />

Mögele, M. 109, 236<br />

Mohamed, S. 289<br />

Möhler, M. 372<br />

Mohr, A. 446<br />

Molchanov, A. 507<br />

Moldenhauer, G. 169<br />

Molls, M. 188<br />

Monasterio, C. 210<br />

Montag, M. 279<br />

Montag, T. 433<br />

Montalbano, R. 351, 353, 362<br />

Moorahrend, E. 51<br />

Moreno, J. 55, 56, 57<br />

Moritz, R. 106<br />

Mortsiefer, A. 158<br />

Moser, C. 211, 284, 336<br />

Motsch, E. 290<br />

Moussavian, M. R. 185<br />

Mtsariashvilli, M. 62<br />

Mueck, A. O. 493<br />

Mueller, A. 237, 241<br />

Mueller, V. 288<br />

Muley, T. 367<br />

Müller, A. 279<br />

Müller, A. 304<br />

Müller, A. 481, 482<br />

Müller, C. 118<br />

Müller, C. K. 62<br />

Müller, L. 329<br />

Müller, O. 19<br />

Müller, R. 462<br />

Müller, S. 106<br />

Müller, V. 80, 247, 380<br />

Müller-Briel, D. 189<br />

Müller-Mattheis, V. 81, 158,<br />

158, 158, 255<br />

Müller-Richter, U. 25<br />

Murga Penas, E. M . 417<br />

Murthy, S. 494<br />

Musayev, A. 277<br />

Müsgens, M. 390<br />

Muth, M. 24, 33<br />

Mycielska, M. 284, 336<br />

Mysliwietz, J. 395, 416<br />

N<br />

Naas, A. 127<br />

Nacke, A. 108<br />

Nagata, H. 42<br />

Naschberger, E. 141, 217<br />

Nauck, F. 433<br />

Nawroth, R. 252<br />

Negri, G. 423<br />

Nellessen-Martens, G. 70<br />

Nelson, P. J . 323<br />

Nestoriuc, Y. 246<br />

Neubauer, H. 265, 487, 488,<br />

491, 492, 494, 495, 496<br />

Neuberger, P. 195<br />

Neubert, W. 479<br />

Neugebauer, J. 407, 437<br />

Neumann, A. 375<br />

Neumann, H. 81<br />

Neumann, M. 123<br />

Neumann, V. 83<br />

Neuwöhner, K. 307, 433<br />

Niedermann, G. 105<br />

Niedostatek, A. 127<br />

Niegisch, G. 260<br />

Niehues, C. 283, 285<br />

Nies, R. 335, 335<br />

Niess, H. 323<br />

Niessner, H. 275, 332, 357<br />

Nieters, A. 294<br />

Nimmrich, I. 97<br />

Nischwitz, M. 398<br />

Nitz, U. 318, 319<br />

Noeding, S. 12<br />

Noldus, J. 431<br />

Nonnenmacher, L. 57, 63<br />

Nusch, A. 26<br />

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Oberländer, M. 331<br />

Oberlin, O. 218<br />

Obermann, E. 423<br />

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Ochs, K. 320<br />

Ocker, M. 351, 353, 356, 362<br />

Oechsle, K. 333<br />

Oeckl, K. 402<br />

Oeser, S. 241<br />

Ohlmann, C. 106<br />

Ohlmann, C. -H. 327<br />

Olbert, P. 220, 225, 248<br />

Olbert, P. J. 142, 155<br />

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Ommen, O. 130<br />

Opitz, C. 320<br />

Optazaite, D. -E . 290<br />

Orthmann, A. 13<br />

Ortmann, O. 76, 82, 109,<br />

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Ortmann, U. 257<br />

Osburg, S. 505<br />

Ose, C. 58<br />

Ostermann, H. 45<br />

Ostgathe, C. 177<br />

Otremba, B. 305, 441<br />

Ott, M. 371<br />

Ottmann, O. G. 266<br />

Overkamp, F. 26, 52, 176<br />

P<br />

Paepke, S. 182<br />

Palisaar, J. 431<br />

Panse, J. 29<br />

Pantel, C. 448<br />

Pantel, K. 247, 429, 455<br />

Paolucci, V. 245<br />

Papadopoulos, N. 504<br />

Parsons, S. L. 340, 371, 389<br />

Partecke, L. -I. 331<br />

Pauligk, C. 503<br />

Paulussen, M. 218<br />

Pazhanisamy, S. K. 233<br />

Pech, M. 213<br />

Pelz, J. 230<br />

Perner, S. 496<br />

Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011 |<br />

157


Autorenregister<br />

Petat-Dutter, K. 487, 492<br />

Petersen, C. 243<br />

Petersen, V. 51, 108<br />

Petsch, S. 128<br />

Peuker, M. 41<br />

Peynircioglu, B. 151<br />

Pfaff, H. 70, 123, 130, 306, 408<br />

Pfeiler, G. 280<br />

Pfisterer, J. 117, 160, 287<br />

Pham, D. 496<br />

Piendl, G. 76<br />

Pietzner, K. 451<br />

Pink, D. 152<br />

Platten, M. 281, 320<br />

Plötz, M. 34, 172<br />

Plutizki, S. 482<br />

Poetsch, M. 124<br />

Pogorzelski, M. 129<br />

Polednik, M. 289<br />

Polier, A. 241<br />

Polz, K. 75, 136, 137<br />

Pop, C. 485<br />

Porsch, M. 65, 213, 215<br />

Possinger, K. 45<br />

Potenberg, J. 6, 478<br />

Poths, S. 487, 492, 495<br />

Pott, D. 51<br />

Potzner, M. 191<br />

Prall, F. 331<br />

Priesch, B. 136<br />

Proneth, A. 89<br />

Pross, M. 107<br />

Prott, F. -J. 462<br />

Puderbach, M. 290<br />

Pujade-Lauraine, E. 117,<br />

205, 287<br />

Pukrop, T. 498<br />

Pulte, D. 476<br />

Putz, F. 296, 364, 421<br />

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Quentin, M. 196<br />

Quint, K. 351, 353<br />

Quintanilla-Fend, L. 332<br />

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Raab, R. 131, 133<br />

Rabenalt, R. 260, 369<br />

Rack, B. 94, 247, 257, 407, 437,<br />

455, 472<br />

Rack, I. M. 12<br />

Radbruch, L. 433<br />

Radosa, J. 381, 442<br />

Raftery, D. 494<br />

Rahm, J. 152<br />

Raji, O. 469<br />

Ramadori, G. 393, 398<br />

Ranft, A. 218, 309, 341<br />

Rau, B. 134<br />

Rau, J. 61<br />

Rauch, G. 90<br />

Rausch, S. 469<br />

Rave-Fränk, M. 393, 498, 499<br />

Rea, N. 334<br />

Rebmann, U. 315<br />

Reichardt, A. 277<br />

Reichardt, P. 29, 152, 277<br />

Reichle, A. 31<br />

Reimers, K. 239<br />

Reinacher-Schick, A. 174<br />

Reinecke, P. 410<br />

Reinmuth, N. 97<br />

Reiser, M. 59<br />

Renges, H. 388<br />

Renner, A. 395, 404<br />

Renner, C. 210<br />

Retz, M. 250, 252<br />

Reuss, A. 139<br />

Reuter, E. 186<br />

Rexrodt von Fircks, A. 46<br />

Rezai, M. 257, 300, 407<br />

Richter, B. 160, 205<br />

Richter, D. 43<br />

Richter, R. 451, 485<br />

Ricke, J. 151, 213<br />

Ried, T. 77, 498<br />

Rieder, H. 125<br />

Rief, W. 60, 246, 299<br />

Rieken, S. 424, 446, 453<br />

Riess, O. 487, 492, 495<br />

Riethdorf, S. 247, 429, 448<br />

Roblick, U. 77, 331<br />

Rödel, C. 131, 133<br />

Roethke, M. 5<br />

Rohsbach, D. 243<br />

Roling, B. 263<br />

Rom, J. 273<br />

Romer, G. 110<br />

Romics, I. 400<br />

Rommelaere, J. 372<br />

Roscher, M. 55, 56, 57, 63<br />

Rösel, S. B. 26<br />

Rosenbaum, D. 118, 341<br />

Rosenberg, R. 188<br />

Rosenblatt, J. D. 302<br />

Rosenwald, A. 25<br />

Rosien, B. 74<br />

Rosmorduc, O. 151<br />

Rot, S. 167<br />

Roth, P. 456, 506<br />

Roth, S. 372<br />

Rotthoff, T. 158<br />

Ruan, X. 490<br />

Rübel, A. 31, 33<br />

Ruberg, K. 317<br />

Rubner, Y. 143<br />

Rudolph, K. L. 208<br />

Ruemmele, P. 344<br />

Ruf, P. 340<br />

Rüffer, J. -U. 58<br />

Ruhland, B. 224<br />

Rupertus, K. 93<br />

Rusch, T. 382<br />

Rüschoff, J. 304<br />

158 | Journal of <strong>Cancer</strong> Research and Clinical Oncology Suppl 1 · 2011<br />

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Saalmann, R. 12<br />

Sack, U. 261<br />

Sagasser, J. 360<br />

Sahm, F. 281, 320<br />

Sahm, S. 79<br />

Sahoo, D. 233<br />

Salat, C. 26<br />

Salendo, J. 259, 427, 435<br />

Sallmann, A. 316<br />

Salmen, J. 257, 437<br />

Sandalcioglu, I. E. 19<br />

Sander, H. 423<br />

Sangro, B. 151<br />

Sassen, A. 76<br />

Sauer, A. 266<br />

Sauer, R. 131, 133<br />

Sauter, G. 331<br />

Savage, K. J. 302<br />

Schacht, L. 397<br />

Schaefer, I. -M. 393<br />

Schaefer, J. 289<br />

Schäfer, C. 468<br />

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Schäfer, P. 383<br />

Schaller, F. 327<br />

Schally, A. V. 236<br />

Scharding, B. J. 462<br />

Scheer, M. 379<br />

Scheeren, F. A. 477<br />

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Scheid, C. 266<br />

Scheiffert, E. 284<br />

Scheller, T. P. 336<br />

Schellerer, V. 141, 216, 217<br />

Schemmer, P. 273<br />

Schenkirsch, G. 128<br />

Schicke, B. 107<br />

Schiel, R. 47<br />

Schilcher, R. B. 75, 78<br />

Schildhaus, H. -U. 276<br />

Schildmann, J. 171<br />

Schilling, G. 417<br />

Schilling, M. K. 183, 185<br />

Schindlbeck, C. 455<br />

Schirmacher, P. 208<br />

Schirren, J. 432, 436, 439, 443<br />

Schlag, P. M. 72, 251, 261, 355<br />

Schlatt, S. 84<br />

Schlegel, F. 266<br />

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Schlehofer, B. 192<br />

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Schlemmer, M. 59<br />

Schlesinger-Raab, A. 122, 295<br />

Schlitt, H. J. 89, 211, 284,<br />

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Schmalfeldt, B. 117, 160,<br />

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Schmelzer, R. 158<br />

Schmid, F. 355<br />

Schmid, K. W. 129<br />

Schmid-Höpfner, S. 161<br />

Schmidt, A. 123<br />

Schmidt, B. 469<br />

Schmidt, D. 272<br />

Schmidt, H. 145<br />

Schmidt, K. 409<br />

Schmidt, M. 114, 175, 251<br />

Schmidt, M. C. 504<br />

Schmidt, N. 18<br />

Schmidt, P. 108<br />

Schmidt, R. 43, 110, 484<br />

Schmidt-Rimpler, C. 340<br />

Schmiegel, W. 174<br />

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Schmitz, J. 52<br />

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Schnabel, P. 290<br />

Schneck, H. 488<br />

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Schneider, F. 198<br />

Schneider, T. 25<br />

Schneider-Kappus, W. 51, 266<br />

Schneider-Stock, R. 304<br />

Schnitzbauer, A. A. 89, 336<br />

Schnitzler, P. 294<br />

Schöder, W. 385<br />

Schoenfisch, B. 448<br />

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Schuler, P. 19<br />

Schüler, S. 204<br />

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Schulte, T. 193<br />

Schultz, S. 487, 492<br />

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Schulz, C. 158<br />

Schulz, H. 360<br />

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Schulze, H. -J. 489<br />

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Schulz-Wendtland, R. 200, 452<br />

Schumacher, U. 380<br />

Schumm, W. 112<br />

Schuricht, F. 246<br />

Schuster, T. 252<br />

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Schütz, T. A. 391, 414


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Schwarzenbach, H. 124<br />

Schwegler, M. 296, 364, 421<br />

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Seeberger, R. 156<br />

Seeger, H. 265, 491, 494<br />

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Senger, S. 183<br />

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Sers, C. 18<br />

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Shak, S. 318<br />

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Smith, S. E. 302<br />

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Spitzner, M. 259, 427, 435,<br />

498, 499<br />

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Sprick, M. 448<br />

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Stabenow, R. 375<br />

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Staratschek-Jox, A. 123<br />

Staudigl, C. 280<br />

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Stegelmann, F. 266<br />

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Stirkat, F. 486<br />

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Strozyk, E. 374, 441<br />

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Struck, B. 168<br />

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Sturm, I. 346<br />

Stürzl, M. 141, 217<br />

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Südhoff, T. 31<br />

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Sultan, S. 393<br />

Sültmann, H. 367<br />

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Suschek, C. V. 480<br />

Suter, L. 489<br />

Sütterlin, M. 358<br />

Szendröi, A. 400<br />

Szymczak, S. 77<br />

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Tabatabai, G. 506<br />

Tan, J. 171<br />

Tang, C. 233<br />

Tari, S. 154, 354<br />

Taubert, H. 167, 438, 447, 460<br />

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