Toll-like receptor 2 (TLR2) plays a key role in innate immune response recognizing molecular patterns expressed by pathogens. rs111200466 is a TLR2 promoter insertion/deletion polymorphism with contradictory data about its role in human immunodeficiency virus type 1 (HIV-1) infection. We analyzed rs111200466 in HIV-1 disease progression and showed a correlation with a faster progression to the CD4+ < 200 cells/μL outcome for deletion allele carriers (Cox regression analysis: hazard ratio, 2.4 [95% confidence interval, 1.4-4]; P = .001). When naive patients with CD4+ < 200 cells/μL started antiretroviral treatment, rs111200466-deletion carriers showed a trend toward a slower, recovery rate (time required to reach CD4+ > 350 cells/μL; Cox P = .36). Our data suggest rs111200466 as a prognosis factor for HIV-1 disease progression.
Keywords: AIDS; HIV infection; HIV progression; TLR2; polymorphism; rs111200466.
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