Article (Scientific journals)
IL-4Ralpha-responsive smooth muscle cells contribute to initiation of T(H)2 immunity and pulmonary pathology in Nippostrongylus brasiliensis infections.
Horsnell, W. G.; Vira, A.; Kirstein, F. et al.
2010In Mucosal Immunology, 4 (1), p. 83-92
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Abstract :
[en] Nippostrongylus brasiliensis infections generate pulmonary pathologies that can be associated with strong T(H)2 polarization of the host's immune response. We present data demonstrating N. brasiliensis-driven airway mucus production to be dependent on smooth muscle cell interleukin 4 receptor-alpha (IL-4Ralpha) responsiveness. At days 7 and 10 post infection (PI), significant airway mucus production was found in IL-4Ralpha(-/lox) control mice, whereas global knockout (IL-4Ralpha(-/-)) and smooth muscle-specific IL-4Ralpha-deficient mice (SM-MHC(Cre) IL-4Ralpha(-/lox)) showed reduced airway mucus responses. Furthermore, interleukin (IL)-13 and IL-5 cytokine production in SM-MHC(Cre) IL-4Ralpha(-/lox) mice was impaired along with a transient reduction in T-cell numbers in the lung. In vitro treatment of smooth muscle cells with secreted N. brasiliensis excretory-secretory antigen (NES) induced IL-6 production. Decreased protein kinase C (PKC)-dependent smooth muscle cell proliferation associated with cell cycle arrest was found in cells stimulated with NES. Together, these data demonstrate that both IL-4Ralpha and NES-driven responses by smooth muscle cells make important contributions in initiating T(H)2 responses against N. brasiliensis infections.Mucosal Immunology advance online publication 25 August 2010. doi:10.1038/mi.2010.46.
Disciplines :
Immunology & infectious disease
Author, co-author :
Horsnell, W. G.
Vira, A.
Kirstein, F.
Mearns, H.
Hoving, J. C.
Cutler, A. J.
Dewals, Benjamin G  ;  Université de Liège - ULiège > Immunologie et vaccinologie
Myburgh, E.
Kimberg, M.
Arendse, B.
White, N.
Lopata, A.
Burger, P. E.
Brombacher, F.
More authors (4 more) Less
Language :
English
Title :
IL-4Ralpha-responsive smooth muscle cells contribute to initiation of T(H)2 immunity and pulmonary pathology in Nippostrongylus brasiliensis infections.
Publication date :
January 2010
Journal title :
Mucosal Immunology
ISSN :
1933-0219
eISSN :
1935-3456
Publisher :
Nature Publishing Group, United Kingdom
Volume :
4
Issue :
1
Pages :
83-92
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 20 September 2010

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