HIV/AIDS Clinical Trial
Official title:
Observational Study for the Evaluation of the Role of HIV-1 Tat Protein and Anti-Tat Immune Response in Peripheral Blood HIV Reservoir Dynamics
A longitudinal observational study in HIV-infected subjects receiving cART addressed to explore the effect of the Tat protein and anti-Tat immunity on the formation and maintenance of HIV-1 virus reservoir.
The study is designed as a longitudinal observational study addressed to identify the effects of Tat protein and humoral/cellular anti-Tat immune responses (induced in the natural infection or by Tat vaccination) in HIV-1 reservoir dynamics in blood of HIV infected patients receiving cART. HIV DNA data will be used for analyzing the decay dynamics. The primary objective of the study is to determine the rate of decay of total HIV DNA in blood of anti-Tat antibody (Ab) positive versus anti-Tat Ab negative HIV patients receiving cART. The secondary objectives of the study are to relate the HIV DNA decay data to: 1. the persistence of anti-Tat humoral responses; 2. biomarkers of HIV reservoir stability potentially affected by the Tat protein or anti-Tat immune responses, including: i) apoptotic/survival index of CD4+ T cells; ii) reactivation dynamics of latent HIV in resting CD4+ T cells upon exposure to Tat protein and/or activation stimuli; iii) cellular and humoral biomarkers relevant to inflammation and immune dysregulation. ;
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