Malassezia yeasts activate the NLRP3 inflammasome in antigen-presenting cells via Syk-kinase signalling.

Détails

ID Serval
serval:BIB_F66F5426213A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Malassezia yeasts activate the NLRP3 inflammasome in antigen-presenting cells via Syk-kinase signalling.
Périodique
Experimental Dermatology
Auteur⸱e⸱s
Kistowska M., Fenini G., Jankovic D., Feldmeyer L., Kerl K., Bosshard P., Contassot E., French L.E.
ISSN
1600-0625 (Electronic)
ISSN-L
0906-6705
Statut éditorial
Publié
Date de publication
2014
Peer-reviewed
Oui
Volume
23
Numéro
12
Pages
884-889
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Résumé
Although being a normal part of the skin flora, yeasts of the genus Malassezia are associated with several common dermatologic conditions including pityriasis versicolour, seborrhoeic dermatitis (SD), folliculitis, atopic eczema/dermatitis (AE/AD) and dandruff. While Malassezia spp. are aetiological agents of pityriasis versicolour, a causal role of Malassezia spp. in AE/AD and SD remains to be established. Previous reports have shown that fungi such as Candida albicans and Aspergillus fumigatus are able to efficiently activate the NLRP3 inflammasome leading to robust secretion of the pro-inflammatory cytokine IL-1β. To date, innate immune responses to Malassezia spp. are not well characterized. Here, we show that different Malassezia species could induce NLRP3 inflammasome activation and subsequent IL-1β secretion in human antigen-presenting cells. In contrast, keratinocytes were not able to secrete IL-1β when exposed to Malassezia spp. Moreover, we demonstrate that IL-1β secretion in antigen-presenting cells was dependent on Syk-kinase signalling. Our results identify Malassezia spp. as potential strong inducers of pro-inflammatory responses when taken up by antigen-presenting cells and identify C-type lectin receptors and the NLRP3 inflammasome as crucial actors in this process.
Pubmed
Web of science
Création de la notice
08/03/2015 10:48
Dernière modification de la notice
20/08/2019 17:22
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