Polymorphisms in DNA repair genes, smoking, and bladder cancer risk: findings from the international consortium of bladder cancer.
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AuthorsStern, Mariana C.
Figueroa, Jonine D.
Kelsey, Karl T.
Kiltie, Anne E.
Taylor, Jack A.
Karagas, Margaret R.
Andrew, Angeline S.
Nelson, Heather H.
Bishop, D. Timothy
Sak, Sei Chung
Barrett, Jennifer H.
Joshi, Amit D.
Cortessis, Victoria K.
Park, Sung Shim Lani
MetadataShow full item record
AbstractTobacco smoking is the most important and well-established bladder cancer risk factor and a rich source of chemical carcinogens and reactive oxygen species that can induce damage to DNA in urothelial cells. Therefore, common variation in DNA repair genes might modify bladder cancer risk. In this study, we present results from meta-analyses and pooled analyses conducted as part of the International Consortium of Bladder Cancer. We included data on 10 single nucleotide polymorphisms corresponding to seven DNA repair genes from 13 studies. Pooled analyses and meta-analyses included 5,282 cases and 5,954 controls of non-Latino white origin. We found evidence for weak but consistent associations with ERCC2 D312N [rs1799793; per-allele odds ratio (OR), 1.10; 95% confidence interval (95% CI), 1.01-1.19; P = 0.021], NBN E185Q (rs1805794; per-allele OR, 1.09; 95% CI, 1.01-1.18; P = 0.028), and XPC A499V (rs2228000; per-allele OR, 1.10; 95% CI, 1.00-1.21; P = 0.044). The association with NBN E185Q was limited to ever smokers (interaction P = 0.002) and was strongest for the highest levels of smoking dose and smoking duration. Overall, our study provides the strongest evidence to date for a role of common variants in DNA repair genes in bladder carcinogenesis.
CitationCancer Res. 2009, 69 (17):6857-6864
SponsorsThe TBCS was supported by a grant to ECNIS, a network of excellence operating within the European Union 6th Framework Program, Priority 5: ‘‘Food Quality and Safety’’ (contract no. 513943), by a grant of the Italian Association for Cancer Research, of the Piedmont Region Progetti di Ricerca Sanitaria Finalizzata, and of the Ministry of Health, Oncology Integrated Project ‘‘Cancer Primary Prevention in Italy: a research-based approach,’’ Italy.
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