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.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
De Dosso S,Zanellato E,Nucifora M,Boldorini R,Sonzogni A,Biffi R,Fazio N,Bucci E,Beretta O,Crippa S,Saletti P,Frattini Mdoi
10.1007/s00280-013-2181-2subject
Has Abstractpub_date
2013-07-01 00:00:00pages
159-65issue
1eissn
0344-5704issn
1432-0843journal_volume
72pub_type
杂志文章abstract::Antibodies can be used to target cancer therapies to malignant tissue; the approach is attractive because conventional treatments such as chemo- and radiotherapy are dose limited due to toxicity in normal tissues. Effective targeting relies on appropriate pharmacokinetics of antibody-based therapeutics, ideally showin...
journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,meta分析,评审
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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更新日期:1984-01-01 00:00:00
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journal_title:Cancer chemotherapy and pharmacology
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更新日期:2012-05-01 00:00:00
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
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更新日期:2016-12-01 00:00:00
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