IP-10 and MIG are sensitive markers of early virological response to HIV-1 integrase inhibitors

Author:

Álvarez Hortensia,Gutiérrez-Valencia Alicia,Mariño Ana,Saborido-Alconchel Abraham,Calderón-Cruz Beatriz,Pérez-González Alexandre,Alonso-Domínguez Jacobo,Martínez-Barros Inés,Gallego-Rodríguez María,Moreno Santiago,Aldamiz Teresa,Montero-Alonso Marta,Bernal Enrique,Galera Carlos,Llibre Josep M.,Poveda Eva

Abstract

BackgroundInterferon-inducible protein-10 (IP-10) and monokine induced by interferon-gamma (MIG) are chemokines recognized as inflammatory biomarkers during HIV-1 infection. We assessed their early and long-term dynamics after initiation of antiretroviral treatment (ART).MethodsPersons with HIV-1 (PWH) aged>18 years starting their first ART in 2015-2021 in a prospective cohort (n=73) were included. IP-10 and MIG plasma levels were quantified using a multiplexed bead-based assay.ResultsIP-10 and MIG plasma levels showed a significant and consistent reduction following ART (80% integrase inhibitor [INSTI]-based) initiation, starting at day 20 and maintained throughout the study period (48 months), paralleling the HIV-1 RNA decay and CD4+ count recovery (p<0·001). At baseline, PWH≥ 50 years, CDC stage C and CD4+ count<350cells/mm3 had higher levels of IP-10 (p=0·022, p=0·001 and p=0·002, respectively) and MIG (p<0·001, p=0·024 and p=0·069, respectively). All of them matched their counterparts several months following ART initiation. MIG levels showed a greater decrease at day 10 in those treated with INSTI (p=0·038). Low-level HIV-1 viremia did not impact MIG or IP-10 levels.ConclusionPlasma IP-10 and MIG showed an early significant decline following ART initiation, with greater early declines in MIG levels in INSTI-based regimens. These findings suggest a strong impact of HIV-1 viremia on IP-10 and MIG levels.

Funder

Instituto de Salud Carlos III

Publisher

Frontiers Media SA

Subject

Immunology,Immunology and Allergy

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