姜黄素对哮喘气道重塑大鼠骨桥蛋白及mRNA的影响

被引:6
作者
王小明
朱婷婷
张维溪
梁亚峰
李昌崇
机构
[1] 温州医科大学附属第二医院育英儿童医院呼吸内科
关键词
大鼠; 哮喘; 气道重塑; 骨桥蛋白; 姜黄素;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的探讨姜黄素对哮喘气道重塑大鼠骨桥蛋白(OPN)及mRNA表达的影响及其在哮喘气道重塑中的作用。方法将24只SD大鼠分为3组,正常对照组(N组)、哮喘组(A组)和姜黄素组(C组),每组8只。卵清蛋白(OVA)致敏和激发制备哮喘气道重塑模型。图像分析技术测量大鼠支气管壁厚度(Wat)和平滑肌厚度(Wam),免疫组化法和逆转录-聚合酶链反应(RT-PCR)法测定大鼠肺组织骨桥蛋白的蛋白及mRNA表达,对支气管壁厚度、平滑肌厚度与骨桥蛋白蛋白和mRNA的表达进行相关性分析。结果哮喘组支气管壁厚度和平滑肌厚度均高于对照组。与哮喘组相比,姜黄素组支气管壁厚度和平滑肌厚度显著下降。免疫组化检测提示,哮喘组骨桥蛋白蛋白表达显著高于正常对照组,姜黄素组相对哮喘组显著下降,差异具有统计学意义(P<0.01)。逆转录-聚合酶链反应法检测显示,哮喘组骨桥蛋白mRNA表达显著高于正常对照组,姜黄素组相对哮喘组显著下降,差异具有统计学意义(P<0.01)。肺组织中支气管壁厚度、平滑肌厚度与骨桥蛋白的蛋白、mRNA表达均呈正相关。结论姜黄素抑制哮喘气道重塑,可能通过下调大鼠骨桥蛋白的表达发挥作用。
引用
收藏
页码:1964 / 1968
页数:5
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