The cellular immune response in hepatitis C-virus (HCV) infection is very important, its effectiveness depends on human leukocyte antigens (HLA) molecules. It is known that HLA-DRB1*1101 and HLA-DQB1*03 alleles may “protect” from HCV infection and its chronization, lead to early viral clearance, slow down liver fibrosis progression and increase the possibility of antiviral therapy response. The carriage of these alleles was studied in 103 patients with chronic hepatitis C (CHC). Frequency of alleles did not differ from control group. It was found that HLA-DQB1*03 allele was associated with less extent of liver fibrosis. HLA-DRB1*1101 and HLA-DQB1*03 alleles had no impact on treatment effectiveness and were not connected with interleukin-28B genotypes.
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