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中华细胞与干细胞杂志(电子版) ›› 2020, Vol. 10 ›› Issue (01) : 37 -43. doi: 10.3877/cma.j.issn.2095-1221.2020.01.007

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论著

阿加曲班对急性脑梗死大鼠脑组织细胞凋亡的影响
刘猛1, 刘娟1,(), 朱月敏1, 袁亚松1, 韩建鹏1, 王姣姣1, 卢双动2   
  1. 1. 072750 涿州,河北涿州市医院神经内科
    2. 072750 保定,河北保定市第二中心医院急诊内科
  • 收稿日期:2019-04-25 出版日期:2020-02-01
  • 通信作者: 刘娟
  • 基金资助:
    2019年保定市科学技术研究与发展指导计划(第一批)项目(18zf153)

Effect of argatroban on brain neuronal apoptosis in rats with acute cerebral infarction

Meng Liu1, Juan Liu1,(), Yuemin Zhu1, Yasong Yuan1, Jianpeng Han1, Jiaojiao Wang1, Shuangdong Lu2   

  1. 1. Department of Internal Neurology, Zhuozhou City Hospital, Zhuozhou 072750, China
    2. Department of Emergency Internal Medicine, Baoding Second Central Hospital, Baoding 072750, China
  • Received:2019-04-25 Published:2020-02-01
  • Corresponding author: Juan Liu
  • About author:
    Corresponding author: Liu Juan, Email:
引用本文:

刘猛, 刘娟, 朱月敏, 袁亚松, 韩建鹏, 王姣姣, 卢双动. 阿加曲班对急性脑梗死大鼠脑组织细胞凋亡的影响[J/OL]. 中华细胞与干细胞杂志(电子版), 2020, 10(01): 37-43.

Meng Liu, Juan Liu, Yuemin Zhu, Yasong Yuan, Jianpeng Han, Jiaojiao Wang, Shuangdong Lu. Effect of argatroban on brain neuronal apoptosis in rats with acute cerebral infarction[J/OL]. Chinese Journal of Cell and Stem Cell(Electronic Edition), 2020, 10(01): 37-43.

目的

探讨阿加曲班对急性脑梗死大鼠脑组织细胞凋亡数量、caspase-3、Bcl-2和Bax表达的影响。

方法

建立SD大鼠大脑中动脉缺血(MCAO)模型,将大鼠分为假手术组(Sham组,不插入MCAO拴线)、脑中动脉缺血模型组(MCAO组)和阿加曲班处理组(Argatroban组)。分别选取0、6和12 h共3个时间窗的样本进行检测,TUNEL法细胞凋亡检测试剂盒检测大鼠脑部神经细胞凋亡,Western blot和ELISA法检测大鼠脑部caspase-3、Bax和Bcl-2水平。多组间比较采用单因素方差分析,组间两两比较采用LSD-t检验。

结果

TUNEL法结果显示,与MCAO组比较,Sham组和Argatroban组在0、6、12 h的细胞凋亡指数均降低[0 h(14.91±4.11)﹪比(2.13±0.58)﹪、(4.22±1.01)﹪;6 h(24.75±3.88)﹪比(3.19±0.28)﹪、(12.14±1.90)﹪;12 h(48.22±2.69)﹪比(5.75±1.21)﹪、(28.45±7.84)﹪,P均< 0.05]。ELISA结果显示:与Sham组比较,MCAO组0、6、12 h的大鼠脑组织细胞caspase-3、Bax表达均升高,而Bcl-2表达在6、12 h时升高(P均< 0.05);与MCAO组比较,Argatroban组的脑组织细胞caspase-3、Bax表达均降低,而Bcl-2表达在6、12 h时升高[caspase-3表达:0 h (2.32±0.12)比(1.25±0.06)、6 h (5.91±0.60)比(3.26±0.22)、12 h(7.31±0.27)比(6.42±0.18)ng/ml;Bax表达:0 h(0.82±0.08)比(0.45±0.03)、6 h (1.00±0.05)比(0.66±0.04)、12 h (1.56±0.11)比(1.09±0. 07)ng/ml;Bcl-2表达:6 h (1.07±0.08)比(1.56±0.05)ng/ml,12 h (0.67±0.08)比(1.45±0.06)ng/ml,P均< 0.01]。Western blot结果显示,大鼠脑组织细胞caspase-3、Bax蛋白表达趋势与ELISA结果一致;而Bcl-2蛋白表达在Argatroban组高于Sham组和MCAO组,差异有统计学意义(P均< 0.01)。

结论

阿加曲班可通过减少急性脑梗死诱导的大鼠脑组织细胞凋亡、抑制caspase-3和Bax表达,并上调Bcl-2水平而产生神经保护作用。

Objective

To investigate the effect of argatroban on neuronal apoptosis, and the expression of caspase-3, Bcl-2 as well as Bax in rats with acute cerebral infarction.

Methods

The rat model of focal cerebral ischemia was established by middle cerebral artery occlusion (MCAO) . SD rats were divided into Sham group, MCAO model group and Argatroban treatment group, and 3 time windows were set (0, 6, 12 h) . The samples of 3 time windows at 0, 6, 12 h were selected for detection, respectively. TUNEL apoptosis detection kit was used to detect neuronal apoptosis in the rat brain; Western blot and ELISA were used to detect the expression of caspase-3, Bcl-2 and Bax in the rat brain; ANOVA was used for comparison among groups, and LSD-t test was used for comparison of two groups.

Results

The results of TUNEL showed that the apoptosis index of the sham group and Argatroban group all decreased at 0, 6, 12 h when compared with MCAO group [0 h (14.91±4.11) ﹪ vs (2.13±0.58) ﹪, (4.22±1.01) ﹪; 6 h (24.75±3.88) ﹪ vs (3.19±0.28) ﹪, (12.14±1.90) ﹪; 12 h (48.22±2.69) ﹪ vs (5.75±1.21) ﹪, (28.45±7.84) ﹪, P< 0.05]. The results of ELISA showed that the expression of caspase-3 and Bax in rat brain neuron in MCAO group increased at 0, 6 and 12 h compared with that in the sham group, while the expression of Bcl-2 increased at 6 and 12 hours (P< 0.05) . And compared with MCAO group, the expression of caspase-3 and Bax in rat brain neuron in Argatroban group decreased at 0, 6 and 12 h, while the expression of Bcl-2 increased at 6 and 12 hours [the expression of caspase-3: 0 h (2.32±0.12) vs (1.25±0.06) 、6 h (5.91±0.60) vs (3.26±0.22) 、12 h (7.31±0.27) vs (6.42±0.18) ng/ml; the expression of Bax: 0 h (0.82±0.08) vs (0.45±0.03) 、6 h (1.00±0.05) vs (0.66±0.04) 、12 h (1.56± 0.11) vs (1.09±0. 07) ng/ml; the expression of Bcl-2: 6 h (1.07±0.08) vs (1.56±0.05) ng/ ml, 12 h (0.67±0.08) vs (1.45±0.06) ng/ml, P< 0.01]. The protein expression trends of caspase-3 and Bax in rat brain neuron among 3 groups were consistent with those of ELISA, while the expression of Bcl-2 protein in Argatroban group was higher than that in sham group and MCAO group (P< 0.01) .

Conclusion

Argatroban exerts neuroprotective effects by reducing neuronal apoptosis induced by acute cerebral infarction, inhibiting the expression of caspase-3 and Bax and further enhancing Bcl-2 levels.

图1 荧光显微镜下观察不同时间点三组大鼠脑组织细胞凋亡情况(TUNEL荧光染色,×400)
表1 不同时间点三组大鼠脑组织神经细胞凋亡指数(﹪,±sn = 3)
图2 Western blot结果检测不同时间点三组大鼠脑组织细胞caspase-3蛋白表达定量分析
图3 Western blot检测不同时间点三组大鼠脑组织细胞caspase-3、Bcl2和Bax蛋白表达
表2 ELISA检测不同时间点三组大鼠脑组织细胞caspae-3表达(ng/ml,±sn = 3)
图4 Western blot检测不同时间点三组大鼠脑组织细胞Bax蛋白表达定量分析
表3 ELISA检测不同时间点三组大鼠脑组织细胞Bax表达(ng/ml,±sn = 3)
图5 Western blot检测不同时间点三组大鼠脑组织细胞Bcl-2蛋白表达定量分析
表4 ELISA检测不同时间点三组大鼠脑组织细胞Bcl-2表达(ng/ml,±sn = 3)
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