Immunofibroblasts are pivotal drivers of tertiary lymphoid structure formation and local pathology.

Détails

ID Serval
serval:BIB_89AC1F96DED4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Immunofibroblasts are pivotal drivers of tertiary lymphoid structure formation and local pathology.
Périodique
Proceedings of the National Academy of Sciences of the United States of America
Auteur(s)
Nayar S., Campos J., Smith C.G., Iannizzotto V., Gardner D.H., Mourcin F., Roulois D., Turner J., Sylvestre M., Asam S., Glaysher B., Bowman S.J., Fearon D.T., Filer A., Tarte K., Luther S.A., Fisher B.A., Buckley C.D., Coles M.C., Barone F.
ISSN
1091-6490 (Electronic)
ISSN-L
0027-8424
Statut éditorial
Publié
Date de publication
02/07/2019
Peer-reviewed
Oui
Volume
116
Numéro
27
Pages
13490-13497
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
Resident fibroblasts at sites of infection, chronic inflammation, or cancer undergo phenotypic and functional changes to support leukocyte migration and, in some cases, aggregation into tertiary lymphoid structures (TLS). The molecular programming that shapes these changes and the functional requirements of this population in TLS development are unclear. Here, we demonstrate that external triggers at mucosal sites are able to induce the progressive differentiation of a population of podoplanin (pdpn)-positive stromal cells into a network of immunofibroblasts that are able to support the earliest phases of TLS establishment. This program of events, that precedes lymphocyte infiltration in the tissue, is mediated by paracrine and autocrine signals mainly regulated by IL13. This initial fibroblast network is expanded and stabilized, once lymphocytes are recruited, by the local production of the cytokines IL22 and lymphotoxin. Interfering with this regulated program of events or depleting the immunofibroblasts in vivo results in abrogation of local pathology, demonstrating the functional role of immunofibroblasts in supporting TLS maintenance in the tissue and suggesting novel therapeutic targets in TLS-associated diseases.
Mots-clé
Sjögren’s syndrome, autoimmunity, fibroblasts, tertiary lymphoid structures
Pubmed
Web of science
Open Access
Oui
Création de la notice
24/06/2019 16:14
Dernière modification de la notice
21/08/2019 5:37
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