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支气管哮喘患者外周血CD4+CD25+调节性T细胞的作用研究 被引量:2

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摘要 目的探讨哮喘患者外周血CD4+CD25+调节性T细胞(Treg)在哮喘发病机制中的作用。方法分离外周血单个核细胞(PBMC),应用流式细胞仪分析Treg在外周血单个核细胞中的比例;进一步分离纯化和体外刺激诱导培养,采用ELISA法检测Treg细胞培养上清液中IFNγ、IL4的分泌状况。同步采用ELISA法检测血清总IgE含量。试验对象共分3组:哮喘控制组(A组、19例),哮喘未控制组(B组、21例),对照组(C组、19例)。结果上述三组之间Treg百分率差异有统计学意义(F=5.49,P〈0.05)。经过SNK—t检验,A组的Treg百分率高于B组(q=2.69,P〈0.05),但A组和C组之间差异无统计学意义(P〉0.05)。3组间Treg培养上清液中IIA、IFNγ浓度经单因素方差分析,差异无统计学意义。B组Treg细胞百分率与同组总IgE水平呈负相关(r=-0.47,P〈0.05)。结论Treg细胞可能参与了支气管哮喘的发病机制。
作者 蔡畅 周美茜
出处 《中国医师杂志》 CAS 2010年第1期124-126,共3页 Journal of Chinese Physician
基金 基金项目:浙江省自然科学基金项目资助项目(Y2080192)
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