Associations of HLA-DP Variants with Hepatitis B Virus Infection in Southern and Northern Han Chinese Populations: A Multicenter Case-Control Study

作者:Li, Jin*; Yang, Daguo; He, Yongwen; Wang, Mengyi; Wen, Zirong; Liu, Lifeng; Yao, Jinjian; Matsuda, Koichi; Nakamura, Yusuke; Yu, Jinling; Jiang, Xiaorui; Sun, Shuzhen; Liu, Qing; Jiang, Xiang; Song, Qilong; Chen, Man; Yang, Hong; Tang, Feng; Hu, Xiaowen; Wang, Jing; Chang, Ying; He, Xingxing; Chen, Yuan; Lin, Jusheng
来源:PLos One, 2011, 6(8): e24221.
DOI:10.1371/journal.pone.0024221

摘要

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 similar to 3.36x10(-8) at rs2395309; P = 8.37x10(-3)similar to 2.68x10(-10) at rs9277535). In addition, the genotype distributions of both sites (rs2395309 and rs9277535) were clearly different between southern and northern Chinese population (P = 8.95x10(-5) at rs2395309; P = 1.64x10(-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 similar to 0.822 and 0.163 similar to 0.881 in southern Chinese population, respectively; P = 0.097 similar to 0.697 and 0.198 similar to 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.

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