Changes in Markers of T-Cell Senescence and Exhaustion With Atazanavir-, Raltegravir-, and Darunavir Darunavir-Based Initial Antiviral Therapy: ACTG 5260s


HIV Prevention


Kelesidis T, Tran TTT, Stein JH, Brown TT,  Moser C,  Ribaudo HJ,  Dubé MP, Murphy RL, Yang O,  Currier  JS,  McComsey GA.

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It is unclear whether differential roles of CD4(+) versus CD8(+) T-cell senescence/exhaustion and effects of antiretroviral therapy (ART) on these processes may contribute to morbidity in treated human immunodeficiency virus type 1 (HIV) infection. In a prospective 96-week trial, 328 HIV-infected ART-naive participants were randomly assigned to receive tenofovir-emtricitabine plus either atazanavir/ritonavir, darunavir/ritonavir, or raltegravir. Markers of CD4(+) T-cell senescence (ie, the percentage of CD28(-)CD57(+) cells among CD4(+) T cells ) and CD4(+)/CD8(+) T-cell exhaustion (ie, the percentage of PD-1(+) cells among CD4(+)/CD8(+) T cells) decreased after ART. There were no changes in markers of CD8(+) T-cell senescence after ART and no differential changes in all markers in ART groups. Senescent CD4(+) and CD8(+) T cells may have differential roles in HIV pathogenesis.

J Infect Dis, 2016, 214(5):748-52



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