Associations of HLA-DP variants with hepatitis B virus infection in southern and northern Han Chinese populations: a multicenter case-control study.

ABSTRACT: BACKGROUND: Human leukocyte antigen DP (HLA-DP) locus has been reported to be associated with hepatitis B virus (HBV) infection in populations of Japan and Thailand. We aimed to examine whether the association can be replicated in Han Chinese populations. METHODOLOGY/PRINCIPAL FINDINGS: Two HLA-DP variants rs2395309 and rs9277535 (the most strongly associated SNPs from each HLA-DP locus) were genotyped in three independent Han cohorts consisting of 2 805 cases and 1 796 controls. By using logistic regression analysis, these two SNPs in the HLA-DPA1 and HLA-DPB1 genes were significantly associated with HBV infection in Han Chinese populations (P?=?0.021?3.36×10(-8) at rs2395309; P?=?8.37×10(-3)?2.68×10(-10) at rs9277535). In addition, the genotype distributions of both sites (rs2395309 and rs9277535) were clearly different between southern and northern Chinese population (P?=?8.95×10(-5) at rs2395309; P?=?1.64×10(-9) at rs9277535). By using asymptomatic HBV carrier as control group, our study showed that there were no associations of two HLA-DP variants with HBV progression (P?=?0.305?0.822 and 0.163?0.881 in southern Chinese population, respectively; P?=?0.097?0.697 and 0.198?0.615 in northern Chinese population, respectively). CONCLUSIONS: Our results confirmed that two SNPs (rs2395309 and rs9277535) in the HLA-DP loci were strongly associated with HBV infection in southern and northern Han Chinese populations, but not with HBV progression.

SUBMITTER: Li J 

PROVIDER: S-EPMC3164164 | biostudies-literature | 2011

REPOSITORIES: biostudies-literature