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Apelin-13对高糖诱导的脐静脉内皮细胞凋亡的保护作用 被引量:1

Protective effect of Apelin-13 on apoptosis of umbilical vein endothelial cells induced by high glucose
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摘要 目的探讨Apelin-13对高糖环境下人脐静脉内皮细胞(HUVECs)的保护机制是否与沉默信息调节因子2同源蛋白1(SIRT1)相关。方法实验分组分为4部分。实验Ⅰ,将HUVECs分为6组,分别为空白组(5.5 mmol·L^(-1)糖)、模型组(33 mmol·L^(-1)高糖)、各实验组(分别用1×10^(-9),1×10^(-8),1×10^(-7)和1×10^(-6)mol·L^(-1)Apelin预处理+33 mmol·L^(-1)高糖)。实验Ⅱ,将HUVECs分为4组,分别为空白组(5.5 mmol·L^(-1)糖)、模型组(33 mmol·L^(-1)高糖)、对照组(1×10^(-8)mol·L^(-1)Apelin)、实验组(用1×10^(-8)mol·L^(-1)Apelin预处理+33 mmol·L^(-1)糖)。实验Ⅲ,将HUVECs分为2组,分别为空载质粒组(1×10^(-8)mol·L^(-1)Apelin预处理+33 mmol·L^(-1)高糖)和APJ低表达组(1×10^(-8)mol·L^(-1)Apelin预处理+33 mmol·L^(-1)高糖)。以上3个实验均用Western blot法检测高糖环境下SIRT1蛋白的表达水平。实验Ⅳ,将HUVECs分为5组,分别为空白组(5.5 mmol·L^(-1))、模型组(33 mmol·L^(-1)高糖)、实验组(用1×10^(-8)mol·L^(-1)Apelin预处理+33 mmol·L^(-1)高糖)、抑制剂组(33 mmol·L^(-1)高糖+1×10^(-5)mol·L^(-1)EX527)、干预组(用1×10^(-8)mol·L^(-1)Apelin预处理+33 mmol·L^(-1)高糖+1×10^(-5)mol·L^(-1)EX527)。用流式细胞术检测HUVECs的凋亡率。结果实验Ⅰ,空白组、模型组和1×10^(-9),1×10^(-8),1×10^(-7)和1×10^(-6)mol·L^(-1)Apelin实验组的SIRT1蛋白相对表达量分别为0.51±0.06,0.30±0.05,1.02±0.07,1.12±0.10,1.14±0.10和1.05±0.10,模型组的SIRT1蛋白相对表达量与4个实验组和空白组比较,差异均有统计学意义(均P<0.05)。实验Ⅱ,空白组、模型组、对照组和实验组的SIRT1蛋白相对表达量分别为0.82±0.09,0.59±0.05,0.77±0.05和0.72±0.06;模型组的SIRT1蛋白相对表达量与实验组和空白组比较,差异均有统计学意义(均P<0.05)。实验Ⅲ,空载质粒组和APJ低表达组的SIRT1蛋白表达水平分别为0.94±0.13和0.71±0.17,差异有统计学意义(P<0.05)。实验Ⅳ,空白组、模型� Objective To investigate the protective effect of Apelin on high glucose-induced apoptosis in human umbilical vein endothelial cells(HUVECs)and explore if the silent mating type information regulation 2 homolog 1(SIRT1)was involved in the mechanism.Methods In experimentⅠ,HUVECs were divided into six groups,which were described as blank control group(5.5 mmol·L^(-1)glucose),model group(33 mmol·L^(-1)glucose),several experimental group(pretreated by Apelin with the concentration of 1×10^(-9),1×10^(-8),1×10^(-7)and 1×10^(-6)mol·L^(-1),then stimulated by 33 mmol·L^(-1)glucose).In experimentⅡ,HUVECs were divided into four groups,which were described as blank control group(5.5 mmol·L^(-1)glucose),model group(33 mmol·L^(-1)glucose),control group(1×10^(-8)mol·L^(-1)Apelin)and experimental group(pretreated by 1×10^(-8)mol·L^(-1)Apelin,then stimulated by 33 mmol·L^(-1)glucose).In experimentⅢ,HUVECs were divided into two groups,which were described as empty plasmid group(pretreated by1×10^(-8)mol·L^(-1)Apelin,then stimulated by 33 mmol·L^(-1)glucose)and APJ low expression group(pretreated by1×10^(-8)mol·L^(-1)Apelin,then stimulated by 33 mmol·L^(-1)glucose).In the previous three experiments,Western blot was used to detect the expression of SIRT1 protein.In experimentⅣ,HUVECs were divided into five groups,which were described as blank control group(5.5 mmol·L^(-1)glucose),model group(33 mmol·L^(-1)glucose),experimental group(pretreated by 1×10^(-8)mol·L^(-1)Apelin,then stimulated by 33 mmol·L^(-1)glucose),inhibitor group(stimulated by 33 mmol·L^(-1)glucose and 1×10-5 mol·L^(-1)EX527)and intervention group(pretreated by1×10^(-8)mol·L^(-1)Apelin,then stimulated by 33 mmol·L^(-1)glucose and 1×10-5 mol·L^(-1)EX527),Annexin V-fluorescein isothiocyanate(FITC)/propidine iodide(PI)apoptosis detection kit was used to detect the apoptosis rate.Results In experimentⅠ,the expression level of SIRT1 protein in blank control group,model group,1×10^(-9),1×10^(-8),1×10^(-7),1×10^(-6)mol·L^(-1)
作者 周雨燕 林帆 叶志强 朱鹏立 ZHOU Yu-yan;LIN Fan;YE Zhi-qiang;ZHU Peng-li(Department of Geriatrics,Fujian Key Laboratory cf Geriatrics,The Provincial Clinical College of Fujian Medical University/Fujian Provincial Hospital,Fuzhou 350001,Fujian Province,China)
出处 《中国临床药理学杂志》 CAS CSCD 北大核心 2021年第21期2905-2909,共5页 The Chinese Journal of Clinical Pharmacology
基金 国家自然科学基金面上课题基金资助项目(81570387) 福建省卫生教育联合攻关计划课题基金资助项目(WKJ-FJ-20)。
关键词 APELIN-13 高糖 凋亡 沉默信息调节因子2同源蛋白1 Apelin-13 high glucose apoptosis silent mating type information regulation 2 homolog 1
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