户尘螨特异性免疫治疗不同给药途径后支气管哮喘患儿体内调节性T细胞水平变化

来源 :中华医学会2014年全国变态反应学术会议 | 被引量 : 0次 | 上传用户:q513867791
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目的 支气管哮喘是严重威胁儿童生命健康的一种慢性呼吸道疾病,目前特异性免疫治疗被认为是唯一针对病因的治疗方法,近年来随着变应原试剂的标准化及治疗途径的多样化,其治疗的安全性及有效性越来越受到人们的重视.本研究通过比较经不同给药途径进行户尘螨特异性免疫治疗后患儿体内调节性T细胞的水平变化,旨在一定程度上为阐明特异性免疫治疗的临床免疫学机制以及评价其远期治疗效果提供依据.方法 收集2012年2月至2013年10月在我院确诊为尘螨致敏的轻、中度哮喘患儿共计86例(男性63例,女性23例),分为4组:经舌下免疫治疗满1年的哮喘患儿共计29例(SLIT组:男女比例为22/8,平均年龄为9岁);经皮下免疫治疗满1年的哮喘患儿共计13例(SCIT组:男女比例为8/5,平均年龄为8岁,);结束SCIT足疗程3年后停止治疗1年以上的患儿共计14例(结束SCIT组:男女比例为14/0,平均年龄为7岁6月);未经免疫治疗而存在尘螨致敏的哮喘患儿共计30例,(对照组:男女比例为19/13,平均年龄为7岁5月).分离入选患儿的外周血淋巴细胞(PBMC),给予不同浓度(0μg/mL、2.5μg/mL、5μg/mL)户尘螨蛋白浸液(Der p1)刺激后,流式细胞术检测CD4+CD25+Foxp3+调节T淋巴细胞百分比水平.
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