吉林大学学报(医学版) ›› 2022, Vol. 48 ›› Issue (3): 638-647.doi: 10.13481/j.1671-587X.20220312

• 基础研究 • 上一篇    

利多卡因对帕金森模型PC12细胞的保护作用及其机制

黄笑尘1,李浩2,王保华1(),李凯2,3()   

  1. 1.长春中医药大学附属医院麻醉科,吉林 长春 130117
    2.吉林大学公共卫生学院劳动卫生与环境 卫生学教研室,吉林 长春 130021
    3.吉林大学中日联谊医院麻醉科,吉林 长春 130033
  • 收稿日期:2021-09-22 出版日期:2022-05-28 发布日期:2022-06-21
  • 通讯作者: 王保华,李凯 E-mail:wbhzyxx@163.com;likai@jlu.edu.cn
  • 作者简介:黄笑尘(1994-),男,吉林省长春市人,在读硕士研究生,主要从事临床麻醉药物机制方面的研究。
  • 基金资助:
    吉林省发改委省级产业创新专项资金项目(2018C020)

Protective effect of lidocaine on PC12 cells in Parkinson’s disease model and its mechanism

Xiaochen HUANG1,Hao LI2,Baohua WANG1(),Kai LI2,3()   

  1. 1.Department of Anesthesiology,Affiliated Hospital,Changchun University of Traditional Chinese Medicine,Changchun 130117,China
    2.Department of Labor Health and Environmental Health,School of Public Health,Jilin University,Changchun 130021,China
    3.Department of Anesthesiololgy,China-Japan Union Hospital,Jilin University,Changchun 130033,China
  • Received:2021-09-22 Online:2022-05-28 Published:2022-06-21
  • Contact: Baohua WANG,Kai LI E-mail:wbhzyxx@163.com;likai@jlu.edu.cn

摘要: 目的

探讨利多卡因在1-甲基-4苯基-1,2,3,6-四氢吡啶(MPTP)诱导的帕金森病(PD)模型PC12细胞的保护作用,并阐明其可能的分子机制。

方法

CCK-8法确定不同浓度(0.2、0.4、0.8、1.6和3.2 mmol·L-1)MPTP的最佳作用浓度和作用时间,CCK-8法确定不同浓度(0.001、0.010、0.100、0.200、0.400、0.600、0.800和1.000 g·L-1)利多卡因最佳作用浓度和作用时间,Western blotting法进一步确定利多卡因最佳作用浓度。将PC12细胞分为对照组(不进行何处理)、MPTP组(给予0.8 mmol·L-1 MPTP作用24 h)、MPTP+利多卡因组(给予0.8 mmol·L-1 MPTP作用24 h后再给予0.6 g·L-1 利多卡因作用6 h)、MPTP+利多卡因+DKK1组(给予0.8 mmol·L-1 MPTP作用24 h后再给予0.6 g·L-1利多卡因和100 μg·L-1 DKK1作用6 h)和MPTP+DKK1组(给予0.8 mmol·L-1 MPTP作用24 h后再给予100 μg·L-1 DKK1作用6 h)。流式细胞术检测各组PC12细胞中活性氧(ROS)水平,ELISA法检测各组PC12细胞上清中白细胞介素1β(IL-1β)、白细胞介素6(IL-6)和肿瘤坏死因子α(TNF-α)水平,实时荧光定量PCR(RT-qPCR)法检测各组细胞中Wnt配体蛋白1(Wnt1)、β连环蛋白(β-catenin)和糖原合成酶激酶-3β(GSK-3β) mRNA表达水平,Western blotting法检测各组细胞中Wnt1、β-catenin、GSK-3β、磷酸化GSK-3β(p-GSK-3β)和半胱氨酸天冬氨酸蛋白酶3(caspase 3)蛋白表达水平。

结果

与对照组比较,MPTP组PC12细胞中ROS、IL-1β、IL-6和TNF-α水平及GSK-3β mRNA表达水平以及GSK-3β、p-GSK-3β和caspase 3蛋白表达水平均明显升高(P<0.05),而Wnt1、β-catenin mRNA和蛋白表达水平明显降低(P<0.05);与MPTP组比较,MPTP+ 利多卡因组PC12细胞中ROS、IL-1β、IL-6和TNF-α水平及GSK-3β mRNA表达水平以及GSK-3β、p-GSK-3β和caspase 3蛋白表达水平均明显降低(P<0.05),而Wnt1、β-catenin mRNA和蛋白表达水平明显升高(P<0.05)。

结论

利多卡因可显著降低PC12细胞中ROS的生成及抑制促炎性细胞因子的释放,同时还可显著下调凋亡蛋白caspase 3的表达,从而发挥对MPTP诱导的PD模型PC12细胞的保护作用,其作用机制可能与Wnt/β-catenin信号通路有关。

关键词: 帕金森病, 利多卡因, 氧化应激, Wnt配体蛋白1, PC12细胞

Abstract: Objective

To investigate the protective effect of lidocaine on the PC12 cells in Parkinson’s disease(PD) model induced by 1-methyl-4-phenyl-1,2,3, 6-tetrahydropyridine (MPTP), and to elucidate its possible molecular mechanism.

Methods

CCK-8 method was used to determine the optimal concentration and time of MPTP with different concentrations (0.2, 0.4, 0.8, 1.6, and 3.2 mmol·L-1). CCK-8 method was used to determine the optimal concentration and time of lidocaine with different concentrations (0.001, 0.010, 0.100, 0.200, 0.400, 0.600, 0.800, and 1.000 g·L-1), and Western blotting method was used to further determine the optimal concentration of lidocaine. The PC12 cells were divided into control group, MPTP group(0.8 mmol·L-1 MPTP for 24 h), MPTP+ lidocaine group(given 0.8 mmol·L-1 MPTP for 24 h, followed by 0.6 g·L-1 lidocaine for 6 h), MPTP+ lidocaine +DKK1 group(given 0.8 mmol·L-1 MPTP for 24 h, followed by 0.6 g·L-1 lidocaine and 100 μg·L-1 DKK1 for 6 h), and MPTP+DKK1 group(given 0.8 mmol·L-1 MPTP for 24 h, followed by 100 μg·mL-1 DKK1 for 6 h). Flow cytometry was used to detect the levels of reactive oxygen species (ROS) in the PC12 cells in various groups. The expression levels of interleukin-1β(IL-1β), interleukin-6(IL-6),and tumor necrosis factor-α(TNF-α) in supernatant of the PC12 cells in various groups were detected by ELISA assay;real-time fluorescence quantitative PCR (RT-qPCR) method was used to detect the expression levels of Wnt ligand protein 1 (Wnt1),β-catenin,and glycogen synthase kinase-3β(GSK-3β) mRNA in the PC12 cells in various groups.The expression levels of Wnt1, β-catenin, GSK-3β, phosphorylated GSK-3β (p-GSK-3β), and cysteine aspartate protease 3 (caspase 3) proteins in the PC12 cells in various groups were detected by Western blotting method.

Results

Compared with control group, the levels of ROS, IL-1β, IL-6 and TNF-α,and the expression levels of GSK-3β mRNA, and the expression levels of GSK-3β, p-GSK-3β, caspase 3 proteins in the PC12 cells in MPTP group were significantly increased(P<0.05), and the expression levels of Wnt1, β-catenin mRNA and proteins were significantly decreased(P<0.05). Compared with MPTP group, the levels of ROS, IL-1β, IL-6, and TNF-α and the expression levels of GSK-3β mRNA, and the expression levels of GSK-3β, p-GSK-3β, and caspase 3 proteins in the PC12 cells in MPTP+lidocaine group were significantly decreased(P<0.05), however, the expression levels of Wnt1 and β-catenin mRNA and proteins were significantly increased(P<0.05).

Conclusion

Lidocaine can significantly reduce the production of ROS and inhibit the release of pro-inflammatory cytokines in the PC 12 cells, and also significantly down-regulate the expression of apoptotic protein caspase 3, thus playing a protective role in the MPTP-induced PD model PC12 cells; its mechanism may be related to the Wnt /β-catenin signaling pathway.

Key words: Parkinson’s disease, Lidocaine, Oxidative stress, Wnt ligand protein 1, PC12 cells

中图分类号: 

  • R614.1