A genome-wide association study identifies two new cervical cancer susceptibility loci at 4q12 and 17q12
Menée en population chinoise Han sur une cohorte initiale de 829 cas et 990 témoins, puis validée sur deux cohortes indépendantes de 1 824 cas-3 808 témoins et 2 343 cas-3 388 témoins, cette étude d'association sur le génome entier identifie deux loci de susceptibilité au cancer du col de l'utérus sur les régions chromosomiques 4q12 et 17q12
To identify new genetic risk factors for cervical cancer, we conducted a genome-wide association study in the Han Chinese population. The initial discovery set included 1,364 individuals with cervical cancer (cases) and 3,028 female controls, and we selected a 'stringently matched samples' subset (829 cases and 990 controls) from the discovery set on the basis of principal component analysis; the follow-up stages included two independent sample sets (1,824 cases and 3,808 controls for follow-up 1 and 2,343 cases and 3,388 controls for follow-up 2). We identified strong evidence of associations between cervical cancer and two new loci: 4q12 (rs13117307, Pcombined, stringently matched = 9.69 × 10−9, per-allele odds ratio (OR)stringently matched = 1.26) and 17q12 (rs8067378, Pcombined, stringently matched = 2.00 × 10−8, per-allele ORstringently matched = 1.18). We additionally replicated an association between HLA-DPB1 and HLA-DPB2 (HLA-DPB1/2) at 6p21.32 and cervical cancer (rs4282438, Pcombined, stringently matched = 4.52 × 10−27, per-allele ORstringently matched = 0.75). Our findings provide new insights into the genetic etiology of cervical cancer.