Genetic variants in human leukocyte antigen-DP influence both hepatitis C virus persistence and hepatitis C virus F protein generation in the Chinese Han population

Int J Mol Sci. 2014 Jun 3;15(6):9826-43. doi: 10.3390/ijms15069826.

Abstract

Chronic hepatitis C is a serious liver disease that often results in cirrhosis or hepatocellular carcinoma. The aim of this study was to assess the association of human leukocyte antigen-DP (HLA-DP) variants with risk of chronic hepatitis C virus (HCV) or anti-F antibody generation. We selected two single nucleotide polymorphisms (SNPs) in a region including HLA-DPA1 (rs3077) and HLA-DPB1 (rs9277534) and genotyped SNPs in 702 cases and 342 healthy controls from the Chinese population using TaqMan SNP genotyping assay. Moreover, the exon 2 of the HLA-DPA1 and HLA-DPB1 genes were amplified and determined by sequencing-based typing (SBT). The results showed that rs3077 significantly increased the risk of chronic HCV infection in additive models and dominant models (odds ratio (OR) = 1.32 and 1.53). The rs3077 also contributed to decrease the risk of anti-F antibody generation in additive models and dominant models (OR = 0.46 and 0.56). Subsequent analyses revealed the risk haplotypes (DPA1*0103-DPB1*0501 and DPA1*0103-DPB1*0201) and protective haplotypes (DPA1*0202-DPB1*0501 and DPA1*0202-DPB1*0202) to chronic HCV infection. Moreover, we also found that the haplotype of DPA1*0103-DPB1*0201 and DPA1*0202-DPB1*0202 were associated with the anti-F antibody generation. Our findings show that genetic variants in HLA-DP gene are associated with chronic HCV infection and anti-F antibody generation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Antibodies, Viral / immunology
  • China / epidemiology
  • Female
  • Genetic Variation
  • Genotype
  • HLA-DP alpha-Chains / genetics*
  • HLA-DP alpha-Chains / immunology
  • HLA-DP beta-Chains / genetics*
  • HLA-DP beta-Chains / immunology
  • Haplotypes
  • Hepacivirus / immunology*
  • Hepatitis C, Chronic / epidemiology
  • Hepatitis C, Chronic / genetics*
  • Hepatitis C, Chronic / immunology*
  • Humans
  • Male
  • Middle Aged
  • Polymorphism, Single Nucleotide*
  • Risk Factors
  • Viral Proteins / immunology*

Substances

  • Antibodies, Viral
  • HLA-DP alpha-Chains
  • HLA-DP beta-Chains
  • HLA-DPA1 antigen
  • HLA-DPB1 antigen
  • Viral Proteins