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Reeves, Daniel B; Bacchus-Souffan, Charline; Fitch, Mark; Abdel-Mohsen, Mohamed; Hoh, Rebecca; Ahn, Haelee; Stone, Mars; Hecht, Frederick; Martin, Jeffrey; Deeks, Steven G; Hellerstein, Marc K; McCune, Joseph M; Schiffer, Joshua T; Hunt, Peter W
Nature communications, 10/2023, Letnik: 14, Številka: 1Journal Article
Persistence of HIV in people living with HIV (PWH) on suppressive antiretroviral therapy (ART) has been linked to physiological mechanisms of CD4+ T cells. Here, in the same 37 male PWH on ART we measure longitudinal kinetics of HIV DNA and cell turnover rates in five CD4 cell subsets: naïve (T ), stem-cell- (T ), central- (T ), transitional- (T ), and effector-memory (T ). HIV decreases in T and T but not in less-differentiated subsets. Cell turnover is ~10 times faster than HIV clearance in memory subsets, implying that cellular proliferation consistently creates HIV DNA. The optimal mathematical model for these integrated data sets posits HIV DNA also passages between CD4 cell subsets via cellular differentiation. Estimates are heterogeneous, but in an average participant's year ~10 (in T and T ) and ~10 (in T , T , T ) proviruses are generated by proliferation while ~10 proviruses passage via cell differentiation (per million CD4). In simulations, therapies blocking proliferation and/or enhancing differentiation could reduce HIV DNA by 1-2 logs over 3 years. In summary, HIV exploits cellular proliferation and differentiation to persist during ART but clears faster in more proliferative/differentiated CD4 cell subsets and the same physiological mechanisms sustaining HIV might be temporarily modified to reduce it.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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