The deficiency in Th2-like Tfh cells affects the maturation and quality of HIV-specific B cell response in viremic infection.

Détails

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Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_3A9147719CB5
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
The deficiency in Th2-like Tfh cells affects the maturation and quality of HIV-specific B cell response in viremic infection.
Périodique
Frontiers in immunology
Auteur⸱e⸱s
Noto A., Suffiotti M., Joo V., Mancarella A., Procopio F.A., Cavet G., Leung Y., Corpataux J.M., Cavassini M., Riva A., Stamatatos L., Gottardo R., McDermott A.B., Koup R.A., Fenwick C., Perreau M., Pantaleo G.
ISSN
1664-3224 (Electronic)
ISSN-L
1664-3224
Statut éditorial
Publié
Date de publication
2022
Peer-reviewed
Oui
Volume
13
Pages
960120
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Résumé
Optimal T follicular helper (Tfh) cells function is important to promote the development of germinal centers and maturation of high affinity antigen-specific B cells. We have found that the expression of CXCR3 defines distinct Tfh subsets: CXCR3 <sup>+</sup> Th1-like Tfh cells mainly producing single IFN-γ and dual IL-21/IFN-γ and CXCR3 <sup>-</sup> Th2-like Tfh cells mainly producing single IL-4 and dual IL-21/IL-4 cytokines. CXCR3 <sup>-</sup> Th2-like Tfhs are significantly reduced during ongoing HIV replication. While the percentage of Th2-like Tfh cells correlates with that of total and cycling HIV-specific B cells, the percentage of CXCR3 <sup>+</sup> Th1-like Tfhs correlates with HIV-specific B cells expressing T-bet and CXCR3. Of note, only IL-4 and IL-21 cytokines boosted efficient maturation of HIV-specific B cells while IFN-γ induced expression of T-bet and CXCR3 in B cells. Interestingly, total and HIV-specific CXCR3 <sup>+</sup> B cells showed lower rate of somatic hypermutation, as compared to CXCR3 <sup>-</sup> B cells. Therefore, the imbalance in Th2/Th1-like Tfhs affects B cell responses in viremic HIV infection.
Mots-clé
Cytokines/metabolism, Germinal Center/metabolism, HIV Infections/metabolism, Humans, Interleukin-4/metabolism, T Follicular Helper Cells, Viremia, HIV-1 infection, T helper cell, follicular T helper cells, germinal center B cells (GC B cells), lymph nodes
Pubmed
Web of science
Open Access
Oui
Création de la notice
20/09/2022 11:52
Dernière modification de la notice
27/08/2024 8:50
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