大黄素对缺氧条件下人脐静脉内皮细胞焦亡的影响Effects of Emodin on Pyroptosis of HUVEC under Hypoxia
王凯,施思,雷少青,夏中元
摘要(Abstract):
目的观察大黄素(EMO)对缺氧条件下人脐静脉内皮细胞(HUVEC)焦亡的影响并探讨其机制。方法离体培养HUVEC,分为4组:对照组、缺氧12 h组、缺氧24 h组、EMO处理组,检测各组活性氧(ROS)水平,采用Western blotting方法检测各组核苷酸结合寡聚化结构域样受体蛋白3 (NLRP3)、Caspase-1、白细胞介素-1β(IL-1β)蛋白的变化。结果缺氧12 h后细胞内ROS水平,NLRP3、Caspase-1、IL-1β蛋白表达无明显改变(P> 0.05),缺氧24 h后细胞内ROS水平升高,NLRP3、Caspase-1、IL-1β蛋白表达增加(P <0.05),加入大黄素后,细胞内ROS水平下降,NLRP3、Caspase-1、IL-1β蛋白表达下降(P <0.05)。结论缺氧可以诱导细胞焦亡,大黄素可以减轻缺氧条件下细胞焦亡水平,减轻细胞损伤,其机制可能与大黄素清除细胞内ROS有关。
关键词(KeyWords): 缺氧;焦亡;大黄素;HUVEC
基金项目(Foundation): 国家自然科学基金资助项目(81671891)
作者(Author): 王凯,施思,雷少青,夏中元
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