Article (Scientific journals)
Antigen presenting cell-derived IL-6 restricts Th2-cell differentiation.
Mayer, Alice; Debuisson, Delphine; Denanglaire, Sebastien et al.
2014In European Journal of Immunology, 44 (11), p. 3252-62
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Keywords :
Airway allergy; DCs; IL-6; iNKT cells; Th2-cell differentiation
Abstract :
[en] The identification of DC-derived signals orchestrating activation of Th1 and Th17 immune responses has advanced our understanding on how these inflammatory responses develop. However, whether specific signals delivered by DCs also participate in the regulation of Th2 immune responses remains largely unknown. In this study, we show that administration of antigen-loaded, IL-6-deficient DCs to naive mice induced an exacerbated Th2 response, characterized by the differentiation of GATA-3-expressing T lymphocytes secreting high levels of IL-4, IL-5, and IL-13. Coinjection of wild type and IL-6-deficient bone marrow-derived dendritic cells (BMDCs) confirmed that IL-6 exerted a dominant, negative influence on Th2-cell development. This finding was confirmed in vitro, where exogenously added IL-6 was found to limit IL-4-induced Th2-cell differentiation. iNKT cells were required for optimal Th2-cell differentiation in vivo although their activation occurred independently of IL-6 secretion by the BMDCs. Collectively, these observations identify IL-6 secretion as a major, unsuspected, mechanism whereby DCs control the magnitude of Th2 immunity.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Mayer, Alice;  Université Libre de Bruxelles - ULB > Laboratoire d’Immunobiologie, Institut de Biologie et de Médecine Moléculaire
Debuisson, Delphine;  Université Libre de Bruxelles - ULB > Laboratoire d’Immunobiologie, Institut de Biologie et de Médecine Moléculaire
Denanglaire, Sebastien;  Université Libre de Bruxelles - ULB > Laboratoire d’Immunobiologie, Institut de Biologie et de Médecine Moléculaire
Eddahri, Fouad;  Université Libre de Bruxelles - ULB > Laboratoire d’Immunobiologie, Institut de Biologie et de Médecine Moléculaire
Fievez, Laurence ;  Université de Liège > Département des sciences fonctionnelles (DSF) > GIGA-R : Biochimie et biologie moléculaire
Hercor, Melanie;  Université Libre de Bruxelles - ULB > Laboratoire d’Immunobiologie, Institut de Biologie et de Médecine Moléculaire
Triffaux, Emily;  Université Libre de Bruxelles - ULB > Laboratoire d’Immunobiologie, Institut de Biologie et de Médecine Moléculaire
Moser, Muriel;  Université Libre de Bruxelles - ULB > Laboratoire d’Immunobiologie, Institut de Biologie et de Médecine Moléculaire
Bureau, Fabrice ;  Université de Liège > Département des sciences fonctionnelles (DSF) > GIGA-R : Biochimie et biologie moléculaire
Leo, Oberdan;  Université Libre de Bruxelles - ULB > Institut d’Immunologie Médicale
Andris, Fabienne;  Université Libre de Bruxelles - ULB > Laboratoire d’Immunobiologie, Institut de Biologie et de Médecine Moléculaire
Language :
English
Title :
Antigen presenting cell-derived IL-6 restricts Th2-cell differentiation.
Publication date :
2014
Journal title :
European Journal of Immunology
ISSN :
0014-2980
eISSN :
1521-4141
Publisher :
John Wiley & Sons, United Kingdom
Volume :
44
Issue :
11
Pages :
3252-62
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 June 2016

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