RT Journal Article T1 A Lower Baseline CD4/CD8 T-Cell Ratio Is Independently Associated with Immunodiscordant Response to Antiretroviral Therapy in HIV-Infected Subjects A1 Rosado-Sanchez, I. A1 Herrero-Fernandez, I. A1 Alvarez-Rios, A. I. A1 Genebat, M. A1 Abad-Carrillo, M. A. A1 Ruiz-Mateos, E. A1 Pulido, F. A1 Gonzalez-Garcia, J. A1 Montero, M. A1 Bernal-Morell, E. A1 Vidal, F. A1 Leal, M. A1 Pacheco, Y. M. K1 CD4/CD8 T-cell ratio K1 delayed cART K1 low CD4 recovery K1 T-cell turnover K1 thymic function K1 CD4/CD8 ratio K1 antiretroviral therapy K1 human immunodeficiency virus K1 immunodiscordant K1 Immunodeficiency-virus type-1 K1 Cd4 recovery K1 Tropism K1 Turnover K1 Events K1 Switch K1 Naive K1 Cart K1 Risk AB We explored if baseline CD4/CD8 T-cell ratio is associated with immunodiscordant response to antiretroviral therapy in HIV-infected subjects. Comparing immunodiscordant and immunoconcordant subjects matched by pretreatment CD4 counts, we observed a lower pretreatment CD4/CD8 T-cell ratio in immunodiscordant subjects. Furthermore, pretreatment CD4/CD8 T-cell ratio, but not CD4 counts, correlated with the main immunological alterations observed in immunodiscordants, including increased regulatory T-cell (Treg) frequency and T-cell turnover-related markers. Then, in a larger cohort, only baseline CD4/CD8 T-cell ratio was independently associated with immunodiscordance, after adjusting by the viral CXCR4-tropic HIV variants. Our results suggest that the CD4/CD8 T-cell ratio could be an accurate biomarker of the subjacent immunological damage triggering immunodiscordance. PB Amer soc microbiology SN 0066-4804 YR 2017 FD 2017-07-25 LK http://hdl.handle.net/10668/19000 UL http://hdl.handle.net/10668/19000 LA en NO Rosado-Sánchez I, Herrero-Fernández I, Álvarez-Ríos AI, Genebat M, Abad-Carrillo MA, Ruiz-Mateos E, et al . A Lower Baseline CD4/CD8 T-Cell Ratio Is Independently Associated with Immunodiscordant Response to Antiretroviral Therapy in HIV-Infected Subjects. Antimicrob Agents Chemother. 2017 Jul 25;61(8):e00605-17. DS RISalud RD Apr 12, 2025