Chromosome 15q25 (CHRNA3-CHRNA5) variation impacts indirectly on lung cancer risk.

ABSTRACT: Genetic variants at the 15q25 CHRNA5-CHRNA3 locus have been shown to influence lung cancer risk however there is controversy as to whether variants have a direct carcinogenic effect on lung cancer risk or impact indirectly through smoking behavior. We have performed a detailed analysis of the 15q25 risk variants rs12914385 and rs8042374 with smoking behavior and lung cancer risk in 4,343 lung cancer cases and 1,479 controls from the Genetic Lung Cancer Predisposition Study (GELCAPS). A strong association between rs12914385 and rs8042374, and lung cancer risk was shown, odds ratios (OR) were 1.44, (95% confidence interval (CI): 1.29-1.62, P = 3.69×10(-10)) and 1.35 (95% CI: 1.18-1.55, P = 9.99×10(-6)) respectively. Each copy of risk alleles at rs12914385 and rs8042374 was associated with in

SUBMITTER: Wang Y 

PROVIDER: S-EPMC3084737 | biostudies-literature | 2011 Apr

REPOSITORIES: biostudies-literature