HIV Controllers Exhibit Effective CD8⁺ T Cell Recognition of HIV-1-Infected Non-activated CD4⁺ T Cells.

ABSTRACT: Even with sustained antiretroviral therapy, resting CD4⁺ T cells remain a persistent reservoir of HIV infection, representing a critical barrier to curing HIV. Here, we demonstrate that CD8⁺ T cells recognize infected, non-activated CD4⁺ T cells in the absence of de novo protein production, as measured by immune synapse formation, degranulation, cytokine production, and killing of infected cells. Immune recognition is induced by HLA-I presentation of peptides derived from incoming viral particles, and recognition occurred either following cell-free virus infection or following cell-to-cell spread. CD8⁺ T cells from HIV controllers mediate more effective immune recognition than CD8⁺ T cells from progressors. These results indicate that

SUBMITTER: Monel B 

PROVIDER: S-EPMC6449512 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature