HLA-G polymorphism patterns show lack of detectable association with recurrent spontaneous abortion

Tissue Antigens. 2010 Sep;76(3):216-22. doi: 10.1111/j.1399-0039.2010.01505.x.

Abstract

Human leukocyte antigen-G (HLA-G) is a class I non-classical molecule that is predominantly expressed on the extravillous cytotrophoblasts at foetal-maternal interface during pregnancy. We recruited 143 recurrent spontaneous abortion (RSA) and 150 control couples for the study. DNA-based typing of the HLA-G was carried out to explore if we can validate the patterns of association reported elsewhere or find association of novel HLA-G alleles with RSA in the Indian population. We also evaluated the role of allele sharing in couples with RSA. We did not find association of any of the HLA-G alleles with RSA in our study. There is a general trend of increase in sharing among the RSA couples, but the increase is not significant. The results suggest that the HLA-G alleles or the allele sharing by couples may not play a significant role in the manifestation of RSA in the Indian context albeit more studies are required before making any definitive statement.

Publication types

  • Comparative Study

MeSH terms

  • Abortion, Habitual / genetics*
  • Abortion, Spontaneous / genetics*
  • Adolescent
  • Adult
  • Alleles
  • Case-Control Studies
  • DNA / analysis
  • DNA / genetics
  • Female
  • Gene Frequency
  • HLA Antigens / genetics*
  • HLA-G Antigens
  • Histocompatibility Antigens Class I / genetics*
  • Humans
  • Male
  • Polymerase Chain Reaction
  • Polymorphism, Genetic / genetics*
  • Pregnancy
  • Young Adult

Substances

  • HLA Antigens
  • HLA-G Antigens
  • Histocompatibility Antigens Class I
  • DNA