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- W4367841142 abstract "ABSTRACT CD8+ tissue-resident memory T cells (CD8+ TRM) play an important role in mediating immune responses against HIV in the gastrointestinal (GI) mucosa. Antiretroviral therapy (ART) successfully supresses HIV replication in the blood, but fails to restore GI homeostasis, particularly within gut associated lymphoid tissue (GALT). The importance of cellular metabolism in shaping CD8+ TRM antiviral function has emerged as a crucial aspect of general immunoregulation. To gain better insight into the immunoregulation of CD8+ TRM during HIV, we characterized the function of blood and colon CD8+ T cells in people with HIV (PWH) on ART and HIV-uninfected individuals. We show that a higher proportion of activated CD8+ TRM persisted in the colon of PWH on ART, and these cells exhibited weaker immune response and compromised mitochondrial function compared to their peripheral counterparts. We also observed decreased mitochondrial function in CD8+ T cell in the colon compared to peripheral blood in PWH on ART. The study indicates that mitochondrial bioenergetic properties may be an indicator of colonic CD8+ TRM dysfunction in PWH on ART and highlights the importance of understanding cellular metabolism in shaping CD8+ TRM function to develop targeted immunotherapies for PWH." @default.
- W4367841142 created "2023-05-04" @default.
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- W4367841142 date "2023-05-03" @default.
- W4367841142 modified "2023-09-26" @default.
- W4367841142 title "Colon resident CD8+ T cells from people with HIV on antiretroviral therapy exhibit mitochondrial dysfunction and impaired responses" @default.
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- W4367841142 doi "https://doi.org/10.1101/2023.05.02.539176" @default.
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