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Spontaneous clearance of hepatitis C virus (HCV) occurs in 10–40% of the infections. Specific human leukocyte antigen (HLA) alleles have been identified in associating with HCV clearance. However, data on the association of HLA with the spontaneous clearance of HCV are scarce in the Chinese population. In the current study we studied the HLA class I and class II genes in 231 Chinese voluntary blood donors who had cleared HCV infection spontaneously compared to 429 subjects with chronic HCV infections. We also studied their  IL28B  SNP (rs8099917) genotype, since a number of investigators have found a strong association of  IL28B  with spontaneous or treatment induced HCV clearance. We found that HLA-A*02:01 and DQB1*05:02 distributed differently between the two groups after Bonferroni correction (odds ratio [OR] = 1.839,  Pc  = 0.024 and OR = 0.547,  Pc  = 0.016, respectively). Multivariate logistic regression analysis suggested that A*02:01 and DRB1*11:01 (OR = 1.798,  P  = 0.008 and OR = 1.921,  P  = 0.005, respectively) were associated with HCV spontaneous clearance, independent of age, gender and  IL28B  polymorphism. We concluded that in the Chinese population, HLA-A*02:01 and DRB1*11:01 might be associated with the host capacity to clear HCV independent of  IL28B , which suggesting that the innate and adaptive immune responses both play an important role in the control of HCV.

The Associations of HLA-A*02:01 and DRB1*11:01 with Hepatitis C Virus Spontaneous Clearance Are Independent of IL28B in the Chinese Population

The Associations of HLA-A02:01 and DRB111:01 with Hepatitis C Virus Spontaneous Clearance Are Independent of IL28B in the Chinese Population