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中国临床药理学与治疗学 ›› 2020, Vol. 25 ›› Issue (12): 1344-1350.doi: 10.12092/j.issn.1009-2501.2020.12.004

• 基础研究 • 上一篇    下一篇

PI3K/AKT/GSK3β信号通路参与腺苷A1R介导异丙酚对缺血再灌注损伤大鼠的脑保护作用

夏洪莲1,钟微微1,金 鹏2,陈 猛1,刘再英1,张艳丽1   

  1. 1牡丹江医学院附属红旗医院麻醉科,2手术室,牡丹江 157011,黑龙江
  • 收稿日期:2020-05-27 修回日期:2020-12-01 出版日期:2020-12-26 发布日期:2021-01-04
  • 通讯作者: 张艳丽,女,学士,主管护师,研究方向:围术期护理策略相关研究。 Tel: 0453-6602105 E-mail: yanliis123@163.com
  • 作者简介:夏洪莲,女,硕士,主治医师,研究方向:药物与脑保护相关的研究。 Tel: 0453-6602105 E-mail: mahua201314@163.com
  • 基金资助:
    2017年度黑龙江省省属高等学校基本科研业务费科研项目(2017-KYYWF-0642)

PI3K/AKT/GSK3β signaling pathway participates in the protective effect of adenosine A1R-mediated propofol on ischemia-reperfusion injury in rats

XIA Honglian 1, ZHONG Weiwei 1, JIN Peng 2, CHEN Meng 1, LIU Zaiying 1, ZHANG Yanli 1   

  1. 1 Department of Anesthesiology, Hongqi Hospital Affiliated of Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang, China; 2 Operating Room, Mudanjiang 157011, Heilongjiang, China
  • Received:2020-05-27 Revised:2020-12-01 Online:2020-12-26 Published:2021-01-04

摘要: 目的:探讨PI3K/AKT/GSK-3β信号通路参与异丙酚对缺血再灌注损伤大鼠的脑保护作用及机制。方法:健康雄性SD大鼠72只,所有大鼠参照Zea Longa法建立局灶性脑缺血再灌注损伤的模型。随机分成6组(n=12),A-假手术组,B-模型组(MCAO),C-异丙酚组,D-异丙酚+腺苷A1R拮抗剂组(DPCPX),E-异丙酚组+PI3K特异性抑制剂(LY294002),F-异丙酚+GSK-3β抑制剂组(SB216763),观察大鼠术后24 h神经功能评分情况;LDF监测插栓前后脑血流变化;采用TTC染色法检测各组大鼠的脑梗死体积;用HE染色方法观察大鼠脑组织形态学改变;免疫组织化学法检测Bcl-2阳性细胞表达;采用TUNEL检测各组大脑脑皮质缺血周围神经元凋亡细胞的百分率。结果:与A组比较,B、C、D、E及F组大鼠行为学、脑梗死体积、细胞凋亡率、Bcl-2蛋白表达量均增加(P<0.05);与C组比较,B、D、E组大鼠行为学评分,脑梗死体积及细胞凋亡率均明显增加,Bcl-2蛋白表达量均明显减少(P<0.01),F组Bcl-2蛋白表达量却增加,细胞凋亡率降低(P<0.05),行为学评分减少、梗死体积减少(P<0.05)。 结论:腺苷A1R介导的异丙酚对缺血再灌注损伤大鼠的神经保护作用可能与PI3K/AKT/GSK-3β信号转导通路有关。

关键词: PI3K/AKT/GSK-3β信号通路, 腺苷A1R, 异丙酚, 缺血再灌注

Abstract: AIM: To investigate the PI3K/AKT/GSK-3β signaling pathway involved in the protective effect and mechanism of propofol on the cerebral ischemia-reperfusion injury in rats.  METHODS: There were 72 healthy male SD rats. All rats established a model of focal cerebral ischemia-reperfusion injury according to the Zea Longa method and were randomly divided into six groups (n=12), A-sham operation group, B-model group (MCAO), C-Propofol group, D-Propofol+adenosine A1R antagonist group (DPCPX), E-Propofol group+PI3K specific inhibitor (LY294002), F-Propofol+GSK3β inhibitor group (SB216763). The neurological scores of rats 24 h after operation, LDF monitors changes in cerebral blood flow before and after embolization were observed. The TTC staining method was used to detect the cerebral infarction volume of rats in each group; HE staining method was used to observe the morphological changes of the rat brain tissue; Immunohistochemical method was used to detect Bcl-2 positive cells expression; TUNEL was used to detect cerebral cortex ischemia in each group. The percentage of neuronal apoptotic cells. RESULTS: Compared with group A, the behaviors, cerebral infarction volume, apoptosis rate, and Bcl-2 protein expression of rats in groups B, C, D, E, and F all increased (P<0.05); compared with group C, the behavioral scores, cerebral infarction volume and apoptosis rate of rats in groups B, D and E all increased significantly, and the expression of Bcl-2 protein was decreased significantly (P<0.01), but the expression of Bcl-2 protein in group F was increased, cell apoptosis rate decreased (P<0.05), behavior score and infarcts decreased (P<0.05). CONCLUSION: The neuroprotective effect of propofol mediated by adenosine A1R on ischemia-reperfusion injury in rats may be related to the PI3K/AKT/GSK-3β signal transduction pathway.

Key words: PI3K/AKT/GSK-3β signaling pathway, adenosine A1R, propofol, ischemia-reperfusion

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