The TLR2-Arg753Gln SNP was genotyped in 181 patients after bone marrow transplantation: 83 and 98 patients with and without CMV infection, respectively.
Among various TLR2, TLR4 and TLR9 polymorphisms, TLR2 2258 G>A SNP seems to be an important factor associated with increased risk of congenital HCMV infection in Polish fetuses and neonates.
The inconsistent observations of the immunological and clinical significance of the TLR2 R753Q polymorphism for CMV infection indicates the influence of confounders.
A multivariate Cox proportional hazard model demonstrated a trend towards a higher risk of CMV disease among patients who were homozygous for the TLR2 Arg753Gln polymorphism (hazard ratio, 1.91 [95% confidence interval, 0.91-3.40]; P=.08) after adjusting for patient age, CMV serostatus, and allograft rejection.