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2 型固有淋巴细胞主导的小鼠呼吸道变应性炎症模型的建立
Authors
孟祥慈
Publication date
1 January 2019
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
【目的】应用野生型C57BL/6小鼠和T/B细胞缺陷的Rag1-/-小鼠建立以2型固有淋巴细胞(ILC2)为主导的小鼠呼吸道变应性炎症模型。【方法】分别将雌性C57BL/6小鼠和Rag1-/-小鼠随机平均分为对照组和实验组,并分别于第1、3、5天经气道滴注给予20μLddH2O或含1μgIL-33的ddH2O。第6天处死小鼠后收集肺泡灌洗液和肺组织,通过病理染色及流式检测炎症细胞浸润,通过酶联免疫吸附实验检测细胞因子水平及应用流式检测ILC2水平。【结果】C57BL/6和Rag1-/-模型组小鼠较对照组小鼠均表现出显著的以嗜酸性粒细胞浸润为主的肺部炎症(P<0.05)和气道杯状细胞化生(P<0.05)。支气管灌洗液中嗜酸性粒细胞(P<0.05)和嗜中性粒细胞(P<0.05)的数量,以及Th2型细胞因子IL-5(P<0.05)和IL-13(P<0.05)的表达水平也显著升高。此外,肺组织中ILC2的水平均较对照组明显升高(P<0.05)。【结论】本研究成功地在C57BL/6小鼠和Rag1-/-小鼠中建立了以ILC2为主导的小鼠呼吸道变应性炎症模型,为研究ILC2在哮喘及变应性鼻炎中的作用提供了重要途径
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Last time updated on 15/10/2024