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·药学研究·
孪药 ST-11 对氧糖剥夺/再灌注致 PC12 细胞损伤的保护作用及
机制 Δ
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文金兰 ,陈莉娜 ,张善惠 ,鲁 俊 ,吴淑霞 ,张金娟 ,董永喜 ,董 莉 (1. 贵州医科大学药学院,贵阳
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550025;2.贵州医科大学基础医学院,贵阳 550025)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2023)06-0660-06
DOI 10.6039/j.issn.1001-0408.2023.06.04
摘 要 目的 研究川芎嗪-灯盏乙素苷元孪药ST-11对氧糖剥夺/再灌注(OGD/R)致大鼠肾上腺髓质嗜铬细胞瘤PC12细胞损伤
的保护作用及机制。方法 将细胞分为空白组、模型组、尼莫地平组(阳性对照,5 μmol/L)、ST-11不同浓度组(5、10、20 μmol/L)。
预先给药干预24 h后,除空白组外的其余各组细胞均以含10 mmol/L Na2S2O4的无糖DMEM培养基缺糖缺氧培养4 h,待复糖复氧
培养4 h后,检测各组细胞的存活率,细胞上清液中乳酸脱氢酶(LDH)、过氧化氢酶(CAT)、谷胱甘肽(GSH)、丙二醛(MDA)、超氧
化物歧化酶(SOD)的含量,细胞凋亡率,细胞活性氧(ROS)和线粒体膜电位(MMP)水平,以及B细胞淋巴瘤2相关X蛋白(Bax)、
B细胞淋巴瘤2(Bcl-2)及胱天蛋白酶3(caspase-3)蛋白的表达情况。结果 与空白组比较,模型组的细胞存活率,上清液中CAT、
GSH和SOD含量,细胞MMP水平,细胞Bcl-2蛋白的相对表达量和Bcl-2/Bax比值均显著降低(P<0.05),而上清液中LDH、MDA
含量,细胞ROS 水平,细胞凋亡率,细胞 Bax、caspase-3 蛋白的相对表达量均显著升高(P<0.05)。与模型组比较,ST-11 各浓度
组上述指标(5 μmol/L ST-11组caspase-3蛋白除外)均显著逆转(P<0.05)。结论 ST-11对OGD/R致PC12细胞损伤具有一定的保
护作用,且作用可能与减少细胞氧化应激、抑制细胞凋亡有关。
关键词 ST-11;川芎嗪;灯盏乙素苷元;孪药;氧糖剥夺/再灌注;氧化应激;细胞凋亡;PC12细胞
Protective effects of twin drug ST-11 against PC12 cell injury induced by oxygen-glucose deprivation/
reperfusion and its mechanism
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WEN Jinlan ,CHEN Lina ,ZHANG Shanhui ,LU Jun ,WU Shuxia ,ZHANG Jinjuan ,DONG Yongxi ,
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DONG Li(1. School of Pharmacy, Guizhou Medical University, Guiyang 550025, China;2. School of Basic
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Medicine, Guizhou Medical University, Guiyang 550025, China)
ABSTRACT OBJECTIVE To study the protective effects of ligustrazine-scutellarein twin drug ST-11 on rat adrenal medullary
pheochromocytoma PC12 cell injury induced by oxygen-glucose deprivation/reperfusion (OGD/R) and its mechanism. METHODS
PC12 cells were divided into blank group, model group, nimodipine group (positive control, 5 μmol/L) and different
concentration groups of ST-11 (5, 10, 20 μmol/L). After 24 hours of pre-administration intervention, all the other groups except
the blank group were cultured in glucose-free DMEM culture medium containing 10 mmol/L Na2S2O4 for 4 hours with glucose
deficiency and hypoxia. After 4 hours of glucose and oxygen re-introduction, the survival rate of cells in each group, the contents
of lactate dehydrogenase (LDH), catalase (CAT), glutathione (GSH), malondialdehyde (MDA) and superoxide dismutase
(SOD) in cell supernatant, apoptosis rate, the levels of reactive oxygen species (ROS) and mitochondrial membrane potential
(MMP), the protein expressions of B-cell lymphoma 2 related X protein (Bax), B-cell lymphoma 2 (Bcl-2) and caspase-3 were
all detected in each group. RESULTS Compared with blank group, the cell survival rate, the contents of CAT, GSH and SOD in
cell supernatant, MMP level, relative expression of Bcl-2 and Bcl-2/Bax ratio in model group decreased significantly (P<0.05),
while the contents of LDH and MDA, ROS level, apoptosis rate, relative expressions of Bax and caspase-3 were significantly
increased (P<0.05). Compared with model group, above
Δ 基金项目 国家自然科学基金资助项目(No.81960630);国家级
indexes of ST-11 groups (except for the protein expression of
大学生创新创业训练计划项目(No.202010660029);贵州省普通高等
caspase-3 in 5 μmol/L ST-11 group) were reversed signifi-
学校青年科技人才成长项目(No.黔教合KY字〔2021〕164);贵州省卫
cantly (P<0.05). CONCLUSIONS ST-11 has a certain protec-
生健康委员会科学技术基金项目(No.gzwkj2021-448);贵州医科大学学
tive effect on OGD/R-injured PC12 cells, and its effects may
术新苗培养及创新探索专项项目(No.黔科合平台人才〔2018〕5779-65)
*第一作者 硕士研究生。研究方向:中药药效及毒理机制。电 be related to reduction of oxidative stress and inhibition of cell
话:0851-88416153。E-mail:1372389145@qq.com apoptosis.
# 通信作者 副教授,硕士生导师,博士。研究方向:中药药效学、 KEYWORDS ST-11; ligustrazine; scutellarein; twin drug;
药理学和安全性评价。电话:0851-88416153。E-mail:108405755@qq. oxygen-glucose deprivation/reperfusion; oxidative stress; cell
com apoptosis; PC12 cells
· 660 · China Pharmacy 2023 Vol. 34 No. 6 中国药房 2023年第34卷第6期