Article (Scientific journals)
Interferon response factor-3 promotes the pro-Th2 activity of mouse lung CD11b+ conventional dendritic cells in response to house dust mite allergens
Janss, T.; Mesnil, C.; Pirottin, Dimitri et al.
2016In European Journal of Immunology, 46 (11), p. 2614-2628
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Keywords :
Allergy; Dendritic cell; House dust mite; Interferon response factor 3; Th2; Transcription factor; CD11b antigen; Irf3 protein, mouse; Article; Dermatophagoides; Th2 cell; Administration, Intranasal; Allergens; Animals; Antigens, CD11b; Antigens, Dermatophagoides; Cell Differentiation; Dendritic Cells; Interferon Regulatory Factor-3; Lung; Mice; Mice, Knockout; Microarray Analysis; Phenotype; Th2 Cells; Transcription Factors
Abstract :
[en] Very few transcription factors have been identified that are required by antigen-presenting cells (APCs) to induce T helper type 2 (Th2) responses. Because lung CD11b+ conventional dendritic cells (CD11b+ cDCs) are responsible for priming Th2 responses in house-dust mite (HDM)-induced airway allergy, we used them as a model to identify transcriptional events regulating the pro-Th2 activity of cDCs. Transcriptomic profiling of lung CD11b+ cDCs exposed to HDM in vivo revealed first that HDM triggers an antiviral defence-like response, and second that the majority of HDM-induced transcriptional changes depend on the transcription factor Interferon Response Factor-3 (Irf3). Validating the functional relevance of these observations, Irf3-deficient CD11b+ cDCs displayed reduced pro-allergic activity. Indeed, Irf3-deficient CD11b+ cDCs induced less Th2, more regulatory T cell, and similar Th1 differentiation in naïve CD4+ T cells compared to their wild-type counterparts. The altered APC activity of Irf3 CD11b+ cDCs was associated with reduced expression of CD86 and was phenocopied by blocking CD86 activity in wild-type CD11b+ cDCs. Altogether, these results establish Irf3, known mostly for its role in antiviral responses, as a transcription factor involved in the induction of Th2 responses through the promotion of pro-Th2 costimulation in CD11b+ DCs. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Janss, T.;  Laboratory of Cellular and Molecular Immunology, GIGA-I3, GIGA-Research Center and Faculty of Veterinary Medicine, University of LiegeLiege, Belgium
Mesnil, C.;  Laboratory of Cellular and Molecular Immunology, GIGA-I3, GIGA-Research Center and Faculty of Veterinary Medicine, University of LiegeLiege, Belgium
Pirottin, Dimitri ;  Université de Liège - ULiège > Département des sciences fonctionnelles (DSF) > Département des sciences fonctionnelles (DSF)
Lemaitre, P.;  Laboratory of Cellular and Molecular Immunology, GIGA-I3, GIGA-Research Center and Faculty of Veterinary Medicine, University of LiegeLiege, Belgium
Marichal, Thomas  ;  Université de Liège - ULiège > Physiologie générale et des systèmes
Bureau, Fabrice  ;  Université de Liège - ULiège > Vice-Recteur à la Recherche
Desmet, Christophe   ;  Université de Liège - ULiège > GIGA I3 - Cellular and Molecular Immunology
 These authors have contributed equally to this work.
Language :
English
Title :
Interferon response factor-3 promotes the pro-Th2 activity of mouse lung CD11b+ conventional dendritic cells in response to house dust mite allergens
Publication date :
2016
Journal title :
European Journal of Immunology
ISSN :
0014-2980
eISSN :
1521-4141
Publisher :
John Wiley & Sons, United Kingdom
Volume :
46
Issue :
11
Pages :
2614-2628
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 November 2021

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