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中国应用生理学杂志 ›› 2016, Vol. 32 ›› Issue (6): 540-544.doi: 10.13459/j.cnki.cjap.2016.06.012

• 研究论文 • 上一篇    下一篇

脂联素抑制t-BHP诱导的内皮细胞凋亡作用及其可能机制探讨

吴莉1, 刘鲁豫1, 官滨斌1, 王林曦1,2, 刘小莺2, 陈闽1, 陈洲3, 刘礼斌1,4   

  1. 1. 福建医科大学附属协和医院内分泌科福建省内分泌研究所, 福州 350001;
    2. 福建医科大学附属协和医院附属协和医院老年病科, 福州 350001;
    3. 福建医科大学附属协和医院药学院, 福州 350001;
    4. 福建医科大学附属协和医院老年健康科学研究院, 福州 350001
  • 出版日期:2016-11-28 发布日期:2018-06-19
  • 通讯作者: 刘礼斌,Tel:86-591-83357896-8423;E-mail:libin.liu@hot-mail.com E-mail:libin.liu@hot-mail.com
  • 基金资助:
    福建省科技重点项目(2013Y0041);福建省卫生厅青年课题(2009-2-24);国家和福建省临床重点专科建设项目经费资助;福建省卫计委青年项目(2014-1-43);福建医科大学苗圃基金(2014MP031)

The Effect of recombinant adiponectin on apoptosis induced by t-BHP in human umbilical vein endothelial cells

WU Li1, LIU Lu-yu1, GUAN Bin-bin1, WANG Lin-xi1,2, LIU Xiao-ying2, CHEN Min1, CHEN Zhou3, LIU Li-bin1,4   

  1. 1. Department of Endocrinology, Fujian Medical University Union Hospital, Fujian Institute of Endocrinology, Fujian Medical University, Fuzhou 350001, China;
    2. Department of Geriatrics, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou 350001, China;
    3. College of Pharmacy, Fujian Medical University, Fujian Medical University, Fuzhou 350001, China;
    4. Institute of the Elderly Health Sciences, Fujian Medical University, Fuzhou 350001, China
  • Online:2016-11-28 Published:2018-06-19
  • Supported by:
    福建省科技重点项目(2013Y0041);福建省卫生厅青年课题(2009-2-24);国家和福建省临床重点专科建设项目经费资助;福建省卫计委青年项目(2014-1-43);福建医科大学苗圃基金(2014MP031)

摘要: 目的:探讨重组脂联素对第三丁基过氧化氢(t-BHP)诱导的人脐静脉内皮细胞(HUVECs)凋亡的影响及其相关的分子机制。方法:以HUVECs作为研究对象,给予t-BHP处理,模拟体外HUVECs氧化损伤细胞凋亡模型。在此基础上,用携带重组脂联素基因的腺病毒转染HUVECs,观察重组脂联素对t-BHP诱导的HUVECs凋亡的影响。用MTT法检测细胞增殖活力。Hochest/PI荧光染色检测细胞凋亡率。Western blot检测细胞凋亡相关蛋白p-JNK、JNK和Caspase 3表达水平的变化。结果:100 μmol/L的t-BHP作用8 h可诱导HUVECs发生凋亡。与对照组相比,t-BHP组p-JNK、active caspase 3表达增多(P<0.01)。HUVECs高表达重组脂联素基因后,可明显抑制t-BHP诱导的HUVECs凋亡(P<0.01),下调t-BHP诱导的p-JNK、active caspase 3表达。结论:持续t-BHP氧化损伤可诱导HUVECs发生凋亡。重组脂联素可有效抑制t-BHP诱导的HUVECs凋亡,其机制与p-JNK、active caspase 3的表达下调有关。

关键词: 重组脂联素, 第三丁基过氧化氢, 氧化应激, 细胞凋亡, 人脐静脉内皮细胞

Abstract: Objective: To investigate the protective effect and possible mechanism of recombinant adiponectin on apoptosis in Human Umbilical Vein Endothelial Cells (HUVECs) induced by tert-butyl hydroperoxide (t-BHP). Methods: HUVECs were cultured in vitro and apoptosis was induced by t-BHP. On this basis, HUVECs were transfected with adenovirus carrying adiponectin prior to exposure to t-BHP, to further explore the protective effect of adiponectin on apoptosis induced by t-BHP. The percentage of cell viability was determined by MTT assay. The apoptotic rate was evaluated by fluorescence microsopic analysis with Hochest/PI staining. The protein levels of p-JNK, JNK and Caspase 3 were detected by Western blot. Results: Following t-BHP 100 μmol/L administration for 8 h, the ratio of apoptotic cells was increased. Western blot revealed that the protein levels of p-JNK and active caspase 3 were increased(P<0.01) compared to the control group. When cells were pretreated by adenovirus with adiponectin, the apoptosis rate and protein levels of p-JNK and active caspase 3 were decreased significantly(P<0.01). Conclusion: Continuous exposure to t-BHP induced apoptosis in HUVECs. Recombinant adiponectin protected HUVECs from apoptosis induced by t-BHP, which was correlated with the downregulation of p-JNK and active Caspase 3.

Key words: recombinant adiponectin, tert-butylhydroperoxide, oxidative stress, apoptosis, human umbilical vein endothelial cells

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