Abstract
Methods 72 HIV-1 infected individuals with different disease outcomes were recruited in this study. Tim-3 expression and the profile of cellular immune response were measured by using Multicolor Intracellular Cytokine Staining (ICS) assay. Association between Tim-3 expression levels and disease progression was analyzed. And the potential role of Tim-3 on immune regulation during HIV-1 infection was investigated through assessment of CTL response with frequencies of Tim-3 expression and blocking effect.
Highlights
The exact mechanism of T-cell exhaustion remains to be defined during HIV-1 infection
Expression of Tim-3 on HIV-specific T cells associated with disease progression and T-cell exhaustion in HIV-1 infected Chinese
Tim-3 was found to be highly expressed on HIV-specific CD4+ T cells and CD8+ T cells, especially in primary infectors and AIDS patients
Summary
The exact mechanism of T-cell exhaustion remains to be defined during HIV-1 infection. Recent studies suggest that the inhibitory receptor T-cell immunoglobulin domain and mucin domain 3(Tim-3) may play an important role in the exhaustion of HIV-specific T cells. Provide a novel therapeutic measure to control HIV-1 replication
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