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Exacerbation of experimental allergic asthma by augmented Th2 responses in WSX-1-deficient mice.

Authors: Miyazaki, Y  Inoue, H  Matsumura, M  Matsumoto, K  Nakano, T  Tsuda, M  Hamano, S  Yoshimura, A  Yoshida, H 
Citation: Miyazaki Y, etal., J Immunol. 2005 Aug 15;175(4):2401-7.
Pubmed: (View Article at PubMed) PMID:16081811

WSX-1 (IL-27R) is a class I cytokine receptor with homology to gp130 and IL-12 receptors and is typically expressed on CD4+ T lymphocytes. Although previous reports have clarified that IL-27/WSX-1 signaling plays critical roles in both Th1 differentiation and attenuation of cell activation and proinflammatory cytokine production during some bacterial or protozoan infections, little is known about the importance of WSX-1 in cytokine-mediated diseases of allergic origin. To this aim, we took advantage of WSX-1-deficient (WSX-1(-/-)) mice and induced experimental asthma, in which Th2 cytokines are central modulators of the pathology. OVA-challenged WSX-1(-/-) mice showed marked enhancement of airway responsiveness with goblet cell hyperplasia, pulmonary eosinophil infiltration, and increased serum IgE levels compared with wild-type mice. Production of Th2 cytokines, which are largely responsible for the pathogenesis of asthma, was augmented in the lung or in the culture supernatants of peribronchial lymph node CD4+ T cells from WSX-1(-/-) mice compared with those from wild-type mice. Surprisingly, IFN-gamma production was also enhanced in WSX-1(-/-) mice, albeit at a low concentration. The cytokine overproduction, thus, seems independent from the Th1-promoting property of WSX-1. These results demonstrated that IL-27/WSX-1 also plays an important role in the down-regulation of airway hyper-reactivity and lung inflammation during the development of allergic asthma through its suppressive effect on cytokine production.

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CRRD Object Information
CRRD ID: 5128496
Created: 2011-03-04
Species: All species
Last Modified: 2011-03-04
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.