Abstract | BACKGROUND: Migration of airway smooth muscle cells (ASMCs) might contribute to increased airway smooth muscle mass in asthma. T(H)17 cells and T(H)17-associated cytokines are involved in the pathogenesis of asthma and might also contribute to airway remodeling. OBJECTIVE: We sought to explore the possibility that migration of ASMCs might contribute to airway remodeling through the action of T(H)17-related cytokines. METHODS: RESULTS: We demonstrated that IL-17A, IL-17F, and IL-22 promote migration in a dose-dependent manner. We further demonstrated that ASMCs express receptors for IL-17RA, IL-17RC, and IL-22R1. Using mAbs directed against these receptors, we confirmed that T(H)17-associated cytokine-induced migration was dependent on selective receptor activation. Moreover, IL-17A and IL-17F exert their effects through signaling pathways that are distinct from those used by IL-22. The p38 MAPK inhibitor BIRB0796 inhibited the migration induced by IL-17A and IL-17F. PS1145, an inhibitor of nuclear factor κB, abolished the IL-22-induced migration. CONCLUSION: These data raise the possibility that T(H)17-associated cytokines promote human ASMC migration in vivo and suggest an important new mechanism for the promotion of airway remodeling in asthma.
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Authors | Ying Chang, Laila Al-Alwan, Paul-André Risse, Lucie Roussel, Simon Rousseau, Andrew J Halayko, James G Martin, Qutayba Hamid, David H Eidelman |
Journal | The Journal of allergy and clinical immunology
(J Allergy Clin Immunol)
Vol. 127
Issue 4
Pg. 1046-53.e1-2
(Apr 2011)
ISSN: 1097-6825 [Electronic] United States |
PMID | 21345484
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2011 American Academy of Allergy, Asthma & Immunology. Published by Mosby, Inc. All rights reserved. |
Chemical References |
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Topics |
- Airway Remodeling
(physiology)
- Asthma
(immunology, metabolism, physiopathology)
- Cell Movement
(physiology)
- Cell Separation
- Cytokines
(immunology, metabolism)
- Flow Cytometry
- Humans
- Myocytes, Smooth Muscle
(cytology, metabolism)
- Signal Transduction
(physiology)
- Th17 Cells
(immunology, metabolism)
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