The chromosome 2p21 region harbors a complex genetic architecture for association with risk for renal cell carcinoma
Abstrakt
In follow-up of a recent genome-wide association study (GWAS) that identified a locus in chromosome 2p21 associated with risk for renal cell carcinoma (RCC), we conducted a fine mapping analysis of a 120 kb region that includes EPAS1. We genotyped 59 tagged common single-nucleotide polymorphisms (SNPs) in 2278 RCC and 3719 controls of European background and observed a novel signal for rs9679290 [P 5.75 10(8), per-allele odds ratio (OR) 1.27, 95 confidence interval (CI): 1.171.39].
Imputation of common SNPs surrounding rs9679290 using HapMap 3 and 1000 Genomes data yielded two additional signals, rs4953346 (P 4.09 10(14)) and rs12617313 (P 7.48 10(12)), both highly correlated with rs9679290 (r(2) 0.95), but interestingly not correlated with the two SNPs reported in the GWAS: rs11894252 and rs7579899 (r(2) 0.1 with rs9679290). Genotype analysis of rs12617313 confirmed an association with RCC risk (P 1.72 10(9), per-allele OR 1.28, 95 CI: 1.181.39) In conclusion, we report that chromosome 2p21 harbors a complex genetic architecture for common RCC risk variants.