Follicular CD8 T cells accumulate in HIV infection and can kill infected cells in vitro via bispecific antibodies.

Détails

ID Serval
serval:BIB_6300DD2A65E6
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Follicular CD8 T cells accumulate in HIV infection and can kill infected cells in vitro via bispecific antibodies.
Périodique
Science translational medicine
Auteur⸱e⸱s
Petrovas C., Ferrando-Martinez S., Gerner M.Y., Casazza J.P., Pegu A., Deleage C., Cooper A., Hataye J., Andrews S., Ambrozak D., Del Río Estrada P.M., Boritz E., Paris R., Moysi E., Boswell K.L., Ruiz-Mateos E., Vagios I., Leal M., Ablanedo-Terrazas Y., Rivero A., Gonzalez-Hernandez L.A., McDermott A.B., Moir S., Reyes-Terán G., Docobo F., Pantaleo G., Douek D.C., Betts M.R., Estes J.D., Germain R.N., Mascola J.R., Koup R.A.
ISSN
1946-6242 (Electronic)
ISSN-L
1946-6234
Statut éditorial
Publié
Date de publication
18/01/2017
Peer-reviewed
Oui
Volume
9
Numéro
373
Pages
373
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
Cytolytic CD8 T cells play a crucial role in the control and elimination of virus-infected cells and are a major focus of HIV cure efforts. However, it has been shown that HIV-specific CD8 T cells are infrequently found within germinal centers (GCs), a predominant site of active and latent HIV infection. We demonstrate that HIV infection induces marked changes in the phenotype, frequency, and localization of CD8 T cells within the lymph node (LN). Significantly increased frequencies of CD8 T cells in the B cell follicles and GCs were found in LNs from treated and untreated HIV-infected individuals. This profile was associated with persistent local immune activation but did not appear to be directly related to local viral replication. Follicular CD8 (fCD8) T cells, despite compromised cytokine polyfunctionality, showed good cytolytic potential characterized by high ex vivo expression of granzyme B and perforin. We used an anti-HIV/anti-CD3 bispecific antibody in a redirected killing assay and found that fCD8 T cells had better killing activity than did non-fCD8 T cells. Our results indicate that CD8 T cells with potent cytolytic activity are recruited to GCs during HIV infection and, if appropriately redirected to kill HIV-infected cells, could be an effective component of an HIV cure strategy.

Mots-clé
Adult, Aged, Antibodies, Bispecific/immunology, CD8-Positive T-Lymphocytes/cytology, Cytokines/immunology, Female, Granzymes/immunology, HIV Antibodies/immunology, HIV Infections/immunology, Humans, Lymph Nodes/cytology, Male, Middle Aged, Palatine Tonsil/cytology, Perforin/immunology, Phenotype
Pubmed
Web of science
Création de la notice
30/01/2017 19:38
Dernière modification de la notice
20/08/2019 14:19
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