大黄素对缺氧复氧心肌细胞凋亡、氧化应激及AMPK信号通路蛋白表达的影响

被引:10
作者
曹军 [1 ]
刘志强 [2 ]
杨东伟 [3 ]
机构
[1] 新乡市中心医院急诊科
[2] 新乡市中心医院心血管内四科
[3] 郑州大学附属郑州中心医院心血管内科
关键词
大黄素; AMPK信号通路; 缺氧复氧; 心肌细胞; 凋亡; 氧化应激;
D O I
10.13705/j.issn.1671-6825.2019.07.132
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的:探讨大黄素对缺氧复氧(H/R)心肌细胞凋亡、氧化应激及AMPK信号通路蛋白表达的影响。方法:心肌细胞H9c2于体积分数95%N2、5%CO2的培养箱中缺氧处理12 h,然后于37℃、体积分数95%O2、5%CO2条件下培养4 h,制备H/R细胞模型。分别用2.5、5.0、10.0μmol/L大黄素处理模型细胞24 h,采用Annexin V-FITC/PI双染法检测细胞凋亡率,CCK-8法检测细胞活性,筛选出大黄素浓度5.0μmol/L。取模型细胞,用5.0μmol/L大黄素(大黄素组)或5.0μmol/L大黄素+10 mmol/L的AMPK信号通路抑制剂Compound C(大黄素+抑制剂组)处理48 h,检测细胞活性和凋亡率,检测细胞培养上清中LDH、MDA含量,Western blot法检测细胞中p-AMPK、p-ACC蛋白的表达。以正常培养细胞(空白组)和模型细胞(模型组)为对照。结果:与空白组比较,模型组细胞活性降低,凋亡率升高,细胞LDH和MDA分泌量升高,p-AMPK、p-ACC表达降低(P<0.05)。与模型组和大黄素+抑制剂组比较,大黄素组细胞活性升高,凋亡率降低,细胞LDH和MDA分泌量降低,p-AMPK、p-ACC表达升高(P<0.05)。结论:大黄素可能通过激活AMPK信号通路,抑制氧化应激反应,促进H/R心肌细胞的存活。
引用
收藏
页码:74 / 77
页数:4
相关论文
共 6 条
[1]
AMPK: Mechanisms of Cellular Energy Sensing and Restoration of Metabolic Balance [J].
Garcia, Daniel ;
Shaw, Reuben J. .
MOLECULAR CELL, 2017, 66 (06) :789-800
[2]
Acute Complications of Myocardial Infarction in the Current Era: Diagnosis and Management [J].
Bajaj, Anurag ;
Sethi, Ankur ;
Rathor, Parul ;
Suppogu, Nissi ;
Sethi, Arjinder .
JOURNAL OF INVESTIGATIVE MEDICINE, 2015, 63 (07) :844-855
[3]
Acute Myocardial Infarction.[J].Stephen Boateng;Timothy Sanborn.Disease-a-Month.2012,
[4]
Impaired Macrophage Migration Inhibitory Factor–AMP-Activated Protein Kinase Activation and Ischemic Recovery in the Senescent Heart.[J].Heng Ma;Jingying Wang;D. Paul Thomas;Chao Tong;Lin Leng;Wenkui Wang;Melanie Merk;Swen Zierow;Jürgen Bernhagen;Jun Ren;Richard Bucala;Ji Li.Circulation.2010, 3
[5]
Emodin-mediated protection from acute myocardial infarction via inhibition of inflammation and apoptosis in local ischemic myocardium.[J].Yanxia Wu;Xin Tu;Guosheng Lin;Hao Xia;Hao Huang;Jing Wan;Zhide Cheng;Mengyuan Liu;Gao Chen;Haimou Zhang;Jinrong Fu;Qian Liu;Dong-xu Liu.Life Sciences.2007, 17
[6]
Effects of pharmacological preconditioning by emodin/oleanolic acid treatment and/or ischemic preconditioning on mitochondrial antioxidant components as well as the susceptibility to ischemia-reperfusion injury in rat hearts [J].
Ying Du ;
Kam Ming Ko .
Molecular and Cellular Biochemistry, 2006, 288 :135-142