Early antiretroviral therapy favors post-treatment SIV control associated with the expansion of enhanced memory CD8+ T-cells

Autor: Caroline Passaes, Delphine Desjardins, Anaïs Chapel, Valérie Monceaux, Julien Lemaitre, Adeline Mélard, Federico Perdomo-Celis, Cyril Planchais, Maël Gourvès, Nastasia Dimant, Annie David, Nathalie Dereuddre-Bosquet, Aurélie Barrail-Tran, Hélène Gouget, Céline Guillaume, Francis Relouzat, Olivier Lambotte, Jérémie Guedj, Michaela Müller-Trutwin, Hugo Mouquet, Christine Rouzioux, Véronique Avettand-Fenoël, Roger Le Grand, Asier Sáez-Cirión
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Nature Communications, Vol 15, Iss 1, Pp 1-19 (2024)
Druh dokumentu: article
ISSN: 2041-1723
DOI: 10.1038/s41467-023-44389-3
Popis: Abstract HIV remission can be achieved in some people, called post-treatment HIV controllers, after antiretroviral treatment discontinuation. Treatment initiation close to the time of infection was suggested to favor post-treatment control, but the circumstances and mechanisms leading to this outcome remain unclear. Here we evaluate the impact of early (week 4) vs. late (week 24 post-infection) treatment initiation in SIVmac251-infected male cynomolgus macaques receiving 2 years of therapy before analytical treatment interruption. We show that early treatment strongly promotes post-treatment control, which is not related to a lower frequency of infected cells at treatment interruption. Rather, early treatment favors the development of long-term memory CD8+ T cells with enhanced proliferative and SIV suppressive capacity that are able to mediate a robust secondary-like response upon viral rebound. Our model allows us to formally demonstrate a link between treatment initiation during primary infection and the promotion of post-treatment control and provides results that may guide the development of new immunotherapies for HIV remission.
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