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Published in: Cancer Chemotherapy and Pharmacology 1/2013

01-07-2013 | Original Article

ERCC1 predicts outcome in patients with gastric cancer treated with adjuvant cisplatin-based chemotherapy

Authors: Sara De Dosso, Elena Zanellato, Martina Nucifora, Renzo Boldorini, Angelica Sonzogni, Roberto Biffi, Nicola Fazio, Eraldo Bucci, Ottavio Beretta, Stefano Crippa, Piercarlo Saletti, Milo Frattini

Published in: Cancer Chemotherapy and Pharmacology | Issue 1/2013

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Abstract

Background

Adjuvant chemotherapy is gaining an increasing role in resectable gastric cancer. Customizing chemotherapy on the basis of chemosensitivity may improve outcome, and putative predictive molecular markers have been mostly evaluated in Asian patients. We profiled key DNA and damage signaling factors and correlated them with outcome, in a European cohort.

Methods

Formalin-fixed tumor samples obtained from surgical specimens of patients treated with adjuvant cisplatin-based chemotherapy for gastric cancer were analyzed. Immunohistochemistry (IHC) was performed to analyze excision repair cross-complementing gene 1 (ERCC1) and thymidylate synthase (TS) expression, and p53 mutations were detected with direct sequencing.

Results

Among the 68 patient recruited, the median age was 69 (range 30–74), and UICC stage was III in 44 patients (65 %). With a median follow-up of 40.5 months, disease-free and overall survival were 18.0 (95 % CI 13.4–22.76) and 56 months (95 % CI 44.87–67.13), respectively. ERCC1 score was 0 in 14 out 67 (21 %) cases, 1 in 19 (28 %), 2 in 20 (30 %) and 3 in 14 cases (21 %). Longer overall survival (p = 0.04) was found in patients categorized as ERCC1 negative by IHC according to median score. TS score was 0 in 16 out 67 (24 %) cases, 1 in 27 (40 %), 2 in 16 (24 %) and 3 in 8 cases (12 %). Mutations of p53 were found in 21 out 66 (32 %) cases. Neither TS nor p53 were found to correlate with outcome.

Conclusion

Excision repair cross-complementing gene 1 by IHC might predict patients more likely to benefit from adjuvant cisplatin-based chemotherapy in curatively resected gastric cancer. In patients exhibiting ERCC1 positive tumors, alternative regimens should be evaluated.
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Metadata
Title
ERCC1 predicts outcome in patients with gastric cancer treated with adjuvant cisplatin-based chemotherapy
Authors
Sara De Dosso
Elena Zanellato
Martina Nucifora
Renzo Boldorini
Angelica Sonzogni
Roberto Biffi
Nicola Fazio
Eraldo Bucci
Ottavio Beretta
Stefano Crippa
Piercarlo Saletti
Milo Frattini
Publication date
01-07-2013
Publisher
Springer-Verlag
Published in
Cancer Chemotherapy and Pharmacology / Issue 1/2013
Print ISSN: 0344-5704
Electronic ISSN: 1432-0843
DOI
https://doi.org/10.1007/s00280-013-2181-2

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