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IL-13Rα2 and IL-10 coordinately suppress airway inflammation, airway-hyperreactivity, and fibrosis in mice
Mark S. Wilson, … , Allen W. Cheever, Thomas A. Wynn
Mark S. Wilson, … , Allen W. Cheever, Thomas A. Wynn
Published October 1, 2007
Citation Information: J Clin Invest. 2007;117(10):2941-2951. https://doi.org/10.1172/JCI31546.
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Research Article Immunology

IL-13Rα2 and IL-10 coordinately suppress airway inflammation, airway-hyperreactivity, and fibrosis in mice

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Abstract

Development of persistent Th2 responses in asthma and chronic helminth infections are a major health concern. IL-10 has been identified as a critical regulator of Th2 immunity, but mechanisms for controlling Th2 effector function remain unclear. IL-10 also has paradoxical effects on Th2-associated pathology, with IL-10 deficiency resulting in increased Th2-driven inflammation but also reduced airway hyperreactivity (AHR), mucus hypersecretion, and fibrosis. We demonstrate that increased IL-13 receptor α 2 (IL-13Rα2) expression is responsible for the reduced AHR, mucus production, and fibrosis in BALB/c IL-10–/– mice. Using models of allergic asthma and chronic helminth infection, we demonstrate that IL-10 and IL-13Rα2 coordinately suppress Th2-mediated inflammation and pathology, respectively. Although IL-10 was identified as the dominant antiinflammatory mediator, studies with double IL-10/IL-13Rα2–deficient mice illustrate an indispensable role for IL-13Rα2 in the suppression of AHR, mucus production, and fibrosis. Thus, IL-10 and IL-13Rα2 are both required to control chronic Th2-driven pathological responses.

Authors

Mark S. Wilson, Eldad Elnekave, Margaret M. Mentink-Kane, Marcus G. Hodges, John T. Pesce, Thirumalai R. Ramalingam, Robert W. Thompson, Masahito Kamanaka, Richard A. Flavell, Andrea Keane-Myers, Allen W. Cheever, Thomas A. Wynn

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