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IL-20及其受体在大鼠自身免疫性心肌炎不同阶段的表达
Authors
吴梁安
常贺
+4 more
张宗辉
杨杰
王焱
郭明
Publication date
10 October 2018
Publisher
Abstract
目的探讨IL-20及其受体在大鼠实验性自身免疫性心肌炎(EAM)急慢性期各阶段的表达。方法将提纯精制后的猪心室肌球蛋白加等体积含结核杆菌H37Ra株的完全弗氏佐剂充分混合,于Lewis大鼠双后足皮下注射制作大鼠EAM模型;将15只大鼠按随机数字表法分成3组,每组5只,分别于3、6、12周后处死取心肌组织进行检测。另取5只大鼠注射0.9%氯化钠注射液作为对照组。HE染色评估EAM急慢性期各时点心肌损伤程度;应用实时荧光定量RT-PCR检测IL-20及其受体链(IL-20R1/R2,IL-22R1)在各时点的mRNA表达;应用Western blotting法检测IL-20在各时点的蛋白表达。并以ELISA检测不同时点心肌组织匀浆IL-20蛋白含量[IL-20蛋白/总蛋白(pg/ng)]。结果 IL-20在EAM急性期3周时表达逐渐升高,6周时达峰值,12周时又逐渐减少。IL-20的组织蛋白水平与基因表达相一致。结论 IL-20可能参与大鼠EAM的疾病过程,并且可能在EAM的晚期炎症及慢性心肌纤维化的机制中起重要作用
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Last time updated on 10/06/2020