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ADAM15在支气管哮喘表达及意义

Journal of Nanjing Medicial University(2021)

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Abstract
目的:研究整合素金属蛋白酶15(a disintegrin and metalloproteinase 15,ADAM15)在支气管哮喘中表达及可能机制.方法:收集本院32例哮喘患者及同期16例健康对照的临床资料及血清标本,酶联免疫吸附法检测血清ADAM15水平,分析其与外周血嗜酸性粒细胞数、血清总IgE相关性.构建OVA诱导的过敏性哮喘小鼠模型,免疫组化观察小鼠肺组织AD-AM15表达部位和变化.不同细胞因子刺激人支气管上皮细胞系(16HBE),分别用实时定量PCR法和蛋白质免疫印迹法检测细胞ADAM15 mRNA和蛋白表达.结果:与对照组[(398.90±22.13) pg/mL]相比,哮喘患者血清ADAM15水平明显增高[(749.5±132.3)pg/mL,P=0.023],与血清总IgE水平呈正相关(P=0.0016,r=0.5425).ADAM15主要表达于过敏性哮喘小鼠肺组织支气管上皮细胞,其表达量较对照组小鼠升高.IL-13可上调支气管上皮细胞ADAM15mRNA及蛋白水平.结论:哮喘中ADAM15表达增加,可能与IL-13介导的哮喘气道炎症有关.
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