Article (Scientific journals)
Myeloid hypoxia-inducible factor 1alpha prevents airway allergy in mice through macrophage-mediated immunoregulation
Toussaint, Marie; Fievez, Laurence; Drion, Pierre et al.
2013In Mucosal Immunology, 6 (3), p. 485-97
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Keywords :
Myeloid hypoxia-inducible factor; airway allergy; mice
Abstract :
[en] Hypoxia-inducible factor (HIF) has important roles in promoting pro-inflammatory and bactericidal functions in myeloid cells. Conditional genetic ablation of its major subunit Hif1alpha in the myeloid lineage consequently results in decreased inflammatory responses in classical models of acute inflammation in mice. By contrast, we report here that mice conditionally deficient for Hif1alpha in myeloid cells display enhanced sensitivity to the development of airway allergy to experimental allergens and house-dust mite antigens. We support that upon allergen exposure, MyD88-dependent upregulation of Hif1alpha boosts the expression of the immunosuppressive cytokine interleukin (IL)-10 by lung interstitial macrophages (IMs). Hif1alpha-dependent IL-10 secretion is required for IMs to block allergen-induced dendritic cell activation and consequently for preventing the development of allergen-specific T-helper cell responses upon allergen exposure. Thus, this study supports that, in addition to its known pro-inflammatory activities, myeloid Hif1alpha possesses immunoregulatory functions implicated in the prevention of airway allergy.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Toussaint, Marie ;  Université de Liège - ULiège > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire
Fievez, Laurence ;  Université de Liège - ULiège > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire
Drion, Pierre ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > GIGA-R:Méth. expér.des anim. de labo et éth. en expér. anim.
Cataldo, Didier  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biochimie et physiologie générales, humaines et path.
Bureau, Fabrice ;  Université de Liège - ULiège > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire
Lekeux, Pierre ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie
Desmet, Christophe  ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie
Language :
English
Title :
Myeloid hypoxia-inducible factor 1alpha prevents airway allergy in mice through macrophage-mediated immunoregulation
Publication date :
2013
Journal title :
Mucosal Immunology
ISSN :
1933-0219
eISSN :
1935-3456
Publisher :
Nature Publishing Group, New York, United States - New York
Volume :
6
Issue :
3
Pages :
485-97
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 November 2012

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