TLR1 and TLR6 polymorphisms are associated with susceptibility to invasive aspergillosis after allogeneic stem cell transplantation. Academic Article uri icon

Overview

MeSH Major

  • Aspergillosis
  • Genetic Predisposition to Disease
  • Hematopoietic Stem Cell Transplantation
  • Lung Diseases, Fungal
  • Polymorphism, Single Nucleotide
  • Toll-Like Receptor 1
  • Toll-Like Receptor 6

abstract

  • Toll-like receptors (TLRs) transmit signals in response to Aspergillus fumigatus conidia and hyphae. In this preliminary study, we examined the association between single nucleotide polymorphisms (SNPs) in TLR1, TLR4, and TLR6 genes and development of invasive aspergillosis (IA) in 127 allogeneic hematopoietic stem cell transplant recipients consisting of 22 patients with IA and 105 unaffected control subjects. The following SNPs and their pairwise interactions were considered in the model: TLR1 (239G > C, 743A > G, 914A > T, 1805G > T), TLR4 (896A > G, 1196C > T), and TLR6 (359T > C, 745C > T, 764C > T). No association was found between donor SNP and the risk of IA. Analysis of recipient SNP data showed that the presence of TLR1 239G > C (Arg80 > Thr) or the presence of both TLR1 743A > G (Asn248 > Ser) and TLR6 745C > T (Ser249 > Pro) is associated with IA (odds ratio = 1.30, 95% confidence interval = 1.13 to 1.50; P < .001). Further analyses using a prospective cohort may enable us to identify TLR polymorphisms associated with the susceptibility to IA within a defined interval among immunocompromised patients.

publication date

  • December 2005

Research

keywords

  • Academic Article

Identity

Language

  • eng

Digital Object Identifier (DOI)

  • 10.1196/annals.1358.012

PubMed ID

  • 16461792

Additional Document Info

start page

  • 95

end page

  • 103

volume

  • 1062