2026-05-16T22:07:41Zhttps://repisalud.isciii.es/rest/oai/requestoai:repisalud.isciii.es:20.500.12105/225652025-04-29T13:41:12Zcom_20.500.12105_15322com_20.500.12105_2051col_20.500.12105_16958col_20.500.12105_16967col_20.500.12105_16978
Repisalud
author
Rosado-Sanchez, Isaac
author
Herrero-Fernandez, Ines
author
Genebat, Miguel
author
Del Romero, Jorge
author
Riera, Melchor
author
Podzamczer, Daniel
author
Olalla, Julian
author
Vidal, Francesc
author
Muñoz-Fernandez, María Ángeles
author
Leal, Manuel
author
Pacheco, Yolanda María
2024-09-06T09:55:57Z
2024-09-06T09:55:57Z
2018-07-18
Rosado-Sanchez I, Herrero-Fernandez I, Genebat M, Del Romero J, Riera M, Podzamczer D, et al. HIV-Infected Subjects With Poor CD4 T-Cell Recovery Despite Effective Therapy Express High Levels of OX40 and alpha 4 beta 7 on CD4 T-Cells Prior Therapy Initiation. Front Immunol. 2018 Jul 18;9:1673.
10.3389/fimmu.2018.01673
1664-3224
Frontiers in Immunology
http://hdl.handle.net/20.500.13003/9210
30073002
L623044143
2-s2.0-85050137359
https://hdl.handle.net/20.500.12105/22565
439054700001
Background: HIV-infected subjects with suboptimal CD4 restoration despite suppressive combined antiretroviral treatment (cART) (immunodiscordant subjects) have been classically characterized after a variable period of time under cART. Recently, we have reported that an increased frequency of proliferating CD4 T-cells in these subjects is already present before the cART onset. The potential contribution of peripheral compensatory homeostatic proliferation (HP) is yet unknown. We aimed to analyze the expression of HP-related cellular markers on CD4 T-cells of immunodiscordant subjects before cART. Methods: We analyzed the expression of OX40 and alpha 4 beta 7 on peripheral CD4 T-cells from immunodiscordant and control subjects (n = 21 each group) before cART initiation, and also on available follow-up samples (after 24 month of suppressive cART). Additionally, we tested the expression of these markers in an in vitro system for the study of human HP processes. Results: Immunodiscordant subjects showed increased levels of OX40 and alpha 4 beta 7 on CD4 T-cells before cART initiation. While the cART tended to reduce these levels, immunodiscordant subjects still maintained comparatively higher levels of OX40 and alpha 4 beta 7 after 24 months under suppressive cART. These HP-related markers were upregulated in vitro during the human HP, especially during the fast HP. Conclusion: Our results are compatible with exacerbated HP processes in immunodiscordant subjects, already before the cART onset.
eng
Immunodiscordant response to combined antiretroviral treatment
lOw CD4 recovery
Homeostatic parameters
Homeostatic proliferation
OX40
Alpha 4 beta 7
CD4 T-cell homeostasis
HIV
HIV-Infected Subjects With Poor CD4 T-Cell Recovery Despite Effective Therapy Express High Levels of OX40 and alpha 4 beta 7 on CD4 T-Cells Prior Therapy Initiation
research article