Document Detail


Modulation of ozone-induced airway hyperresponsiveness and inflammation by interleukin-13.
MedLine Citation:
PMID:  18417511     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study aimed to determine whether the T-helper cell type 2-derived cytokines, interleukin (IL)-4 and -13, can modulate the lung response to ozone exposure. IL-13(-/-), IL-4/13(-/-) and IL-13-overexpressing transgenic (Tg) mice were exposed to ozone (3 ppm; 3 h) or air. Wild-type (Wt) Balb/c mice and transgenic-negative littermates (IL-13Wt) were used as controls for gene-deficient and IL-13Tg mice, respectively. IL-4/13(-/-) and IL-13(-/-) mice developed a lesser degree of ozone-induced airway hyperresponsiveness (AHR) while IL-13Tg mice developed a greater degree of AHR compared with ozone-exposed wild-type or IL-13Wt mice, respectively. Ozone caused a time-dependent increase of bronchoalveolar lavage (BAL) neutrophils and macrophages in wild-type mice, maximal at 20-24 h, which was attenuated in the IL-13(-/-) and IL-4/13(-/-) mice. In IL-13Tg mice, there was a greater increase in BAL neutrophils after ozone exposure compared with IL-13Wt mice. Using quantitative real-time PCR, ozone-induced mRNA expression for IL-6 and keratinocyte chemokine was further enhanced in IL-13(-/-) and IL-4/13(-/-) mice, and was inhibited in IL-13Tg mice. Macrophage inflammatory protein (MIP)-3alpha/CCL20 expression was enhanced after ozone exposure in wild-type mice, inhibited in IL-13(-/-) and IL-4/13(-/-) mice, while in IL-13Tg mice it was enhanced. A similar pattern of expression was observed with lipopolysaccharide-induced cytokine (LIX/CXCL5/ENA-78) expression. In conclusion, interleukin-13 augments ozone-induced airway hyperresponsiveness and neutrophilic inflammation, possibly through modulation of certain cytokines induced by ozone exposure.
Authors:
A S Williams; P Nath; S-Y Leung; N Khorasani; A N J McKenzie; I M Adcock; K F Chung
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-04-16
Journal Detail:
Title:  The European respiratory journal     Volume:  32     ISSN:  1399-3003     ISO Abbreviation:  Eur. Respir. J.     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-09-01     Completed Date:  2009-01-13     Revised Date:  2014-02-19    
Medline Journal Info:
Nlm Unique ID:  8803460     Medline TA:  Eur Respir J     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  571-8     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Bronchial Hyperreactivity / chemically induced,  immunology*
Chemokine CCL20 / metabolism
Interleukin-13 / immunology*
Interleukin-4 / immunology
Mice
Mice, Transgenic
Ozone / adverse effects*
Grant Support
ID/Acronym/Agency:
MC_U105178805//Medical Research Council; //Wellcome Trust
Chemical
Reg. No./Substance:
0/Chemokine CCL20; 0/Interleukin-13; 207137-56-2/Interleukin-4; 66H7ZZK23N/Ozone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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