Effect of budesonide on airway remodeling and c-kit phosphorylation in a mouse model of asthma airway remodeling
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    Abstract:

    Objective:To investigate the role of SCF(stem cell factor)/c-kit pathway in airway remodeling and the influence of glucocorticoids on airway remodeling and its mechanisms. Methods:Thirty BALB/c mice are evenly divided into three groups at random. They are normal group,the group of asthma airway remodeling and the group of budesonide intervention. All the mice were sensitized and challenged with ovalbumin to establish the asthmatic model. The airway inflammation and the alteration of airway structure were observed by the means of hematoxylin and eosin staining. Expression of phosphorylated c-kit was examined by immunoprecipitation/Western blot analysis. Results:It is indicated that the incrassation of submucosa and smooth muscle,airway stenosis and mass inflammatory cells infiltration were identified more significantly in the asthmatic group than that in the control group. As far as the therapeutic group was concerned,the above-mentioned symptoms were lighter than that of the asthmatic group. The protein expression level of phosphorylated c-kit in asthmatic group was higher than that of the normal group(P < 0.01),while it is decreased in therapeutic group(P < 0.01). Conclusion:The expression of phosphorylated c-kit in asthmatic group might be higher than that of the normal group,and budesonide could inhibit the phosphorylation of c-kit receptor,thus relieve airway inflammation and airway remodeling.

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刘〓璇,黄〓茂,王艳丽,何海燕,殷凯生.c-kit磷酸化与哮喘气道重塑的关系及布地奈德对其的影响[J].南京医科大学学报(自然科学版英文版),2008,28(3):312-315.

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  • Received:October 27,2007
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