Abstract:
BACKGROUND:Breast cancer 1, early onset (BRCA1) is a tumour-suppressor gene associated with familial epithelial ovarian cancer (EOC). Reduced BRCA1 expression is associated with enhanced sensitivity to platinum-based chemotherapy. We sought to examine the prognostic relevance of BRCA1 expression in EOC patients treated with intraperitoneal platinum/taxane. METHODS:The GOG-172 was a phase III, multi-institutional randomised trial of intravenous paclitaxel and cisplatin (IV therapy) vs intravenous paclitaxel, intraperitoneal cisplatin plus paclitaxel (IP therapy) in patients with optimally resected stage III EOC. The BRCA1 expression was assessed with immunohistochemistry (IHC) staining blinded to clinical outcome in archival tumour specimens. Slides with 10% staining were defined as aberrant and >10% as normal. Correlations between BRCA1 expression and progression-free survival (PFS) and overall survival (OS) were analysed using Kaplan-Meier method and Cox regression analysis. RESULTS:Of the 393 patients, 189 tumours had aberrant expression, and 204 had normal BRCA1 expression. There was an interaction between BRCA1 expression and route of administration on OS (P=0.014) but not PFS (P=0.054). In tumours with normal BRCA1 expression, the median OS was 58 months for IP group vs 50 months for IV group (P=0.818). In tumours with aberrant BRCA1 expression, the median OS was 84 vs 47 months in the IP vs IV group, respectively (P=0.0002). Aberrant BRCA1 expression was an independent prognostic factor for better survival in women randomised to IP therapy (hazard ratio (HR)=0.67, 95% confidence interval (CI)=0.47-0.97, P=0.032). Similar survival was observed in the IV and IP patients with normal BRCA1 expression. Multivariate but not univariate modelling demonstrated that IV patients with aberrant vs normal BRCA1 expression had worse survival. CONCLUSION:Decreased BRCA1 expression is associated with a 36-month survival improvement in patients with EOC treated with IP chemotherapy. Although these results merit validation in future studies, the results suggest that decreased BRCA1 expression predicts for improved response to cisplatin-based IP chemotherapy with cisplatin and paclitaxel.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Lesnock JL,Darcy KM,Tian C,Deloia JA,Thrall MM,Zahn C,Armstrong DK,Birrer MJ,Krivak TCdoi
10.1038/bjc.2013.70subject
Has Abstractpub_date
2013-04-02 00:00:00pages
1231-7issue
6eissn
0007-0920issn
1532-1827pii
bjc201370journal_volume
108pub_type
杂志文章,多中心研究,随机对照试验abstract:BACKGROUND:Surgery is considered to be the first line treatment for solid tumours. Recently, retrospective studies reported that general anaesthesia was associated with worse long-term cancer-free survival when compared with regional anaesthesia. This has important clinical implications; however, the mechanisms underly...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2014.426
更新日期:2014-09-23 00:00:00
abstract::HuR, a ubiquitously expressed member of the Hu protein family that binds and stabilizes an AU-rich element (ARE)-containing mRNAs, is known to shuttle between the nucleus and the cytoplasm via several export pathways. When normal cells were treated with heat shock, HuR was exported to the cytoplasm in a chromosome mai...
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doi:10.1038/sj.bjc.6605084
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journal_title:British journal of cancer
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doi:10.1038/sj.bjc.6692231
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abstract::Heterogeneity of DNA content in multiple hepatocellular carcinomas (HCCs) was investigated by flow cytometry in 62 tumours from 26 patients who had undergone surgical treatment for multiple synchronous HCCs. Heterogeneity of DNA content was defined (a) when tumours had a different DNA ploidy pattern or (b) when the di...
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abstract::Increasingly, treatment choices leading to the same survival outcome can be offered to cancer patients (e.g. mastectomy or conservative surgery in early breast cancer). Two approaches available for post-orchidectomy, stage I patients with non-seminomatous germ cell tumours of the testis (NSGCTT), particularly those at...
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pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2005-11-14 00:00:00
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pub_type: 杂志文章
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