中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (20): 3253-3258.doi: 10.12307/2023.494

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

川芎嗪对脂多糖诱导大鼠心肌细胞炎症及氧化应激的作用

孙芳园,孟佳磊,马宇慧,耿  欢,张  涛   

  1. 上海中医药大学附属第七人民医院,上海市  200137
  • 收稿日期:2022-02-28 接受日期:2022-08-18 出版日期:2023-07-18 发布日期:2022-11-21
  • 通讯作者: 张涛,副主任医师,硕士生导师,上海中医药大学附属第七人民医院,上海市 200137
  • 作者简介:孙芳园,女,1988年生,辽宁省兴城市人,上海中医药大学毕业,硕士,主治医师,主要从事中西医结合急危重症方面的研究。
  • 基金资助:
    上海中医药大学预算内项目(2020LK078),项目负责人:张涛;上海市健委卫生行业临床研究专项(20214Y0281),项目负责人:孙芳园;浦东新区卫生系统浦东名中医继承人培养计划(PWRzj2020-02),项目负责人:孙芳园;上海中医药大学附属第七人民医院人才培养计划(JCR2022-01),项目负责人:孙芳园

Effects of ligustrazine on inflammation and oxidative stress in rat cardiomyocytes induced by lipopolysaccharide

Sun Fangyuan, Meng Jialei, Ma Yuhui, Geng Huan, Zhang Tao   

  1. Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
  • Received:2022-02-28 Accepted:2022-08-18 Online:2023-07-18 Published:2022-11-21
  • Contact: Zhang Tao, Associate chief physician, Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
  • About author:Sun Fangyuan, Master, Attending physician, Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
  • Supported by:
    Project within the budget of Shanghai University of Traditional Chinese Medicine, No. 2020LK078 (to ZT); Shanghai Municipal Health Commission Clinical Research Project, No. 20214Y0281 (to SFY); Pudong Famous Traditional Chinese Medicine Successor Training Program, No. PWRzj2020-02 (to SFY); Funded by Talents Training Program of the Seventh People’s Hospital, Shanghai University of Traditional Chinese Medicine, No. JCR2022-01 (to SFY)

摘要:


文题释义:

H9C2细胞:来自大鼠心脏基层的H9C2细胞,因其具有广泛的研究基础,且能够模拟人体心肌细胞的部分结构与功能,在心肌相关疾病中应用广泛。
脂多糖:是革兰阴性菌细胞壁的重要组成部分,能够通过识别细胞膜上的受体激活下游信号分子,从而促进炎症因子的产生及释放,是目前普遍认同的脓毒症相关炎性损伤性疾病的诱导剂,在构建脓毒症心肌损伤疾病细胞模型中广泛应用,能够通过Toll样受体4和核因子κB信号通路发挥作用,使促炎细胞因子大量释放。

背景脓毒症心肌损伤与炎症反应及氧化应激损伤有关。既往研究表明川芎嗪具有抗氧化、维持钙稳态等多种功能。
目的:探讨川芎嗪对脂多糖诱导的大鼠心肌细胞炎症反应及氧化应激作用的影响。
方法:利用脂多糖(1 μg/mL)诱导大鼠心肌细胞建立脓毒症心肌细胞炎性模型,通过不同浓度的川芎嗪(40,80,160 μmol/L)干预治疗,24 h
后进行检测。利用试剂盒检测川芎嗪对脂多糖诱导H9C2细胞乳酸脱氢酶以及活性氧释放的影响,荧光显微镜观察细胞凋亡情况,检测炎症因子白细胞介素1β、肿瘤坏死因子α和白细胞介素6及Toll样受体4、MyD88的表达变化。
结果与结论:①与对照组比较,模型组细胞中乳酸脱氢酶、活性氧表达水平显著上升(P < 0.05),荧光显微镜下观察发现大量细胞被PI染色,且白细胞介素1β、肿瘤坏死因子α和白细胞介素6的表达水平显著升高(P < 0.05);Toll样受体4、MyD88基因表达均显著上升(P < 0.05); ②与模型组比较,川芎嗪治疗组能够有效降低乳酸脱氢酶释放,降低活性氧水平,抑制PI染色H9C2细胞数目,降低白细胞介素1β、肿瘤坏死因子α和白细胞介素6的表达水平,抑制Toll样受体4、MyD88 mRNA及蛋白的表达(P < 0.05);③提示川芎嗪可能通过抑制Toll样受体4/MyD88的表达降低细胞的炎症因子及氧化应激反应。
https://orcid.org/0000-0003-0788-3734(孙芳园)
中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 川芎嗪, 脂多糖, H9C2, 炎症, 氧化应激

Abstract: BACKGROUND: Sepsis-induced myocardial injury is related to inflammatory response and oxidative stress injury. Previous studies have shown that ligustrazine has many functions such as anti-oxidation and maintaining calcium homeostasis.
OBJECTIVE: To investigate the effects of ligustrazine on inflammation and oxidative stress in lipopolysaccharide-induced rat cardiomyocytes. 
METHODS: Rat cardiomyocytes were induced by lipopolysaccharide (1 μg/mL) to establish septic cardiomyocyte inflammatory models. Twenty-four hours after intervention with different concentrations of ligustrazine (40, 80, 160 μmol/L), the samples were collected and detected. The effects of ligustrazine on the release of lactate dehydrogenase and reactive oxygen species from H9C2 cells induced by lipopolysaccharide were detected. Apoptosis was observed by fluorescence microscope. RT-qPCR was used to detect the changes of inflammatory factors such as interleukin-1 β, tumor necrosis factor-α, and interleukin-6 as well as the expression of Toll like receptor 4 and MyD88. 
RESULTS AND CONCLUSION: Compared with the normal control group, the expression of lactate dehydrogenase and reactive oxygen species in H9C2 cells increased significantly in the model group (P < 0.05) and a large number of cells were stained with propidium iodide under fluorescence microscope. The expression levels of interleukin-1β, tumor necrosis factor-α, and interleukin-6 were significantly increased (P < 0.05) and the expression of Toll like receptor 4 and MyD88 genes were significantly increased in the model group compared with the normal control group (P < 0.05). Compared with the model group, ligustrazine treatment could effectively inhibit the release of lactate dehydrogenase and reactive oxygen species, reduce the number of H9C2 cells stained by propidium iodide, downregulate the expression of interleukin-1β, tumor necrosis factor α and interleukin-6, and suppress the expression of Toll like receptor 4 and MyD88 genes (P < 0.05). To conclude, ligustrazine may reduce intracellular inflammatory factors and oxidative stress by inhibiting the expression of Toll like receptor 4/MyD88.

Key words: ligustrazine, lipopolysaccharide, H9C2, inflammation, oxidative stress

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