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地塞米松对哮喘小鼠肺组织中GPR43表达的调节作用 被引量:1

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摘要 目的研究G蛋白耦联受体43(GPR43)在哮喘小鼠肺组织内的表达,同时探讨地塞米松对GPR43表达的影响。方法 30只BALB/C6小鼠随机分为对照组、哮喘组、地塞米松组,每组10只;卵清白蛋白(OVA)致敏和激发建立哮喘小鼠模型;肺泡灌洗液(BALF)细胞计数;HE染色观察各组气道炎症发生及气道结构改变情况;RT-PCR测定各组小鼠肺组织GPR43mRNA的表达变化;免疫组化观察肺中GPR43的表达及定位。结果哮喘组BALF嗜酸性粒细胞(EOS)与对照组相比明显增高,地塞米松组明显低于哮喘组(P<0.01);HE染色提示哮喘组气道上皮出现EOS等大量炎性细胞浸润,管壁厚度较对照组明显增加(P<0.01);RT-PCR结果提示GPR43受体mRNA的表达量在哮喘组最低,与对照、地塞米松组相比有统计学差异(P<0.01);免疫组化图像分析提示GPR43蛋白表达哮喘组明显降低,与对照组、地塞米松组相比均有显著性差异(P<0.01)。结论哮喘小鼠肺组织中GPR43表达下降,地塞米松能部分上调其表达,从而减轻气道炎症反应。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2013年第2期161-163,共3页 Chinese Journal of Cellular and Molecular Immunology
基金 国家自然科学基金(30770936)
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