Is there association between TLR9 polymorphism and SLE susceptibility?

Mol Immunol. 2015 Aug;66(2):274-5. doi: 10.1016/j.molimm.2015.03.252. Epub 2015 Apr 17.

Abstract

After reading the article "Susceptibility to SLE in South Indian Tamils may be influenced by genetic selection pressure on TLR2 and TLR9 genes", we have some doubt. As the differences existed in genetic risk factors, SLE symptoms, and disease severity between the childhood-onset and adult-onset SLE patients, the association analyses in study population including both childhood-onset and adult-onset SLE patients might be inappropriate. Besides, in order to explore whether TLR9 (-1237C/T) polymorphism impact SLE occurrence, we reviewed current studies and conducted a meta-analysis. The results of meta-analysis showed no significant correlation between TLR9 (-1237C/T) and SLE susceptibility in total population (allele model OR=0.97, 95%CI (0.81-1.14)), or in Caucasians (allele model OR=1.05, 95%CI (0.72-1.39)) and in Asians (allele model OR=0.94, 95%CI (0.54-1.35)). Therefore, confirmative evidence reveals that TLR9 (-1237C/T) polymorphism does not correlate with SLE susceptibility.

Keywords: Genetic polymorphism; SNP; Systemic lupus erythematosus; Toll-like receptor 9.

Publication types

  • Letter
  • Research Support, Non-U.S. Gov't
  • Comment

MeSH terms

  • Female
  • Genetic Predisposition to Disease*
  • Humans
  • Lupus Erythematosus, Systemic / genetics*
  • Male
  • Selection, Genetic*
  • Toll-Like Receptor 2 / genetics*
  • Toll-Like Receptor 9 / genetics*

Substances

  • Toll-Like Receptor 2
  • Toll-Like Receptor 9