Mx1, OAS1 and OAS2 polymorphisms are associated with the severity of liver disease in HIV/HCV-coinfected patients: A cross-sectional study

Sci Rep. 2017 Jan 31;7:41516. doi: 10.1038/srep41516.


The mechanisms involved in the chronic hepatitis C progression are incompletely understood. The aim was to analyze the association between 2'5'oligoadenylate synthetase 1,2 and 3 (OAS1-3) and myxovirus resistance proteins 1 (Mx1) polymorphisms and severity of liver disease in human immunodeficiency virus (HIV)/hepatitis C virus (HCV) coinfected patients. We performed a cross-sectional study in 219 patients that underwent a liver biopsy. DNA genotyping for Mx1 (rs469390), OAS1 (rs2285934), OAS2 (rs1293762) and OAS3 (rs2010604) was performed by using GoldenGate assay. The outcome variables ion liver biopsy were: (i) significant fibrosis (F ≥ 2); (ii) moderate activity grade (A ≥ 2). Additive model of inheritance for genetic association test was used. The likelihood of having significant fibrosis (F ≥ 2) was lower in patients carrying OAS2 rs1293762 A allele [adjusted odds ratio (aOR) = 0.51; p = 0.040]. Besides, the likelihood of having moderate activity grade (A ≥ 2) was higher in patients carrying Mx1 rs464397 C allele (aOR = 1.63; p = 0.028) and Mx1 rs469390 G allele (aOR = 1.97; p = 0.005), while it was lower in patients carrying OAS1 rs2285934 A allele (aOR = 0.64; p = 0.039) and OAS2 rs1293762 A allele (aOR = 0.41; p = 0.009). In conclusion, Mx1 and OAS1-2 polymorphisms were associated with the severity of liver disease in HIV/HCV-coinfected patients, suggesting a significant role in the progression of hepatic fibrosis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 2',5'-Oligoadenylate Synthetase / genetics*
  • Adult
  • Coinfection / epidemiology
  • Coinfection / genetics*
  • Cross-Sectional Studies
  • Female
  • Gene Frequency / genetics
  • Genetic Association Studies
  • Genetic Predisposition to Disease*
  • HIV Infections / epidemiology
  • HIV Infections / genetics*
  • Haplotypes / genetics
  • Hepatitis C, Chronic / epidemiology
  • Hepatitis C, Chronic / genetics*
  • Humans
  • Male
  • Myxovirus Resistance Proteins / genetics*
  • Polymorphism, Single Nucleotide / genetics*


  • MX1 protein, human
  • Myxovirus Resistance Proteins
  • OAS1 protein, human
  • OAS2 protein, human
  • 2',5'-Oligoadenylate Synthetase