中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (3): 447-452.doi: 10.3969/j.issn.2095-4344.0595

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

硫辛酸对脂多糖诱导帕金森病细胞模型的保护作用及机制

高  华1,2,李艳霞1,王  丹1,杨新玲1   

  1. (1新疆医科大学第二附属医院神经内科,新疆维吾尔自治区乌鲁木齐市  830063;2新疆医科大学第五附属医院神经内科,新疆维吾尔自治区乌鲁木齐市  830011)
  • 收稿日期:2018-08-07 出版日期:2019-01-28 发布日期:2021-04-28
  • 通讯作者: 杨新玲,博士,主任医师,新疆医科大学第二附属医院神经内科,新疆维吾尔自治区乌鲁木齐市 830063
  • 作者简介:高华,女,1979年生,新疆维吾尔自治区伊犁巩留县人,汉族,2018年新疆医科大学毕业,博士,主治医师,主要从事帕金森病的研究。
  • 基金资助:

    国家自然科学基金项目(U1503222),项目负责人:杨新玲

Protective effects and the mechanism of lipoic acid on cell model of Parkinson’s disease induced by lipopolysaccharide

Gao Hua1,2, Li Yanxia1, Wang Dan1, Yang Xinling1   

  1. (1Department of Neurology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China; 2Department of Neurology, the Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China)
  • Received:2018-08-07 Online:2019-01-28 Published:2021-04-28
  • Contact: Yang Xinling, MD, Chief physician, Department of Neurology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China
  • About author:Gao Hua, MD, Attending physician, Department of Neurology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi 830063, Xinjiang Uygur Autonomous Region, China; Department of Neurology, the Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. U1503222 (to YXL)

摘要:

文章快速阅读:

文题释义:
小胶质细胞的活化:小胶质细胞作为构成中枢神经系统免疫防御的第一线,如果在一定条件下受到损伤,这些细胞将被激活并在这种状态下改变它们的形态、增殖状态,迁移到破坏位点,影响相关酶类和受体的表达,释放多种炎症因子,如一氧化氮,肿瘤坏死因子α,白细胞介素6等。
神经炎症:血脑屏障的存在被认为可以阻止外周的免疫细胞进入脑内,所以中枢神经系统被认为是“免疫豁免区”。但研究表明脑内的胶质细胞可以发挥免疫应答功能与外周免疫细胞相同,它们的激活时可以介导脑内炎症免疫的发生。
摘要
背景
:近年越来越多的研究证实神经免疫和炎症反应参与了帕金森病的发病,硫辛酸目前被证实具有抗炎和神经保护作用。
目的:探讨硫辛酸对脂多糖诱导PC12细胞制备的帕金森病细胞模型的保护作用及相关可能机制。
方法:将PC12细胞分为正常细胞组、脂多糖-帕金森病组和硫辛酸+脂多糖-帕金森病组。硫辛酸预处理PC12细胞2 h后,再用脂多糖干预PC12细胞。用CCK8法筛选最佳帕金森细胞模型制备的脂多糖浓度以及硫辛酸最佳干预浓度;细胞免疫组织化学法检测各组细胞中酪氨酸羟化酶的表达;ELISA法检测各组中细胞上清液中白细胞介素6和肿瘤坏死因子α水平;Western blot检测各组细胞中NF-κBp65、酪氨酸羟化酶的蛋白表达情况。
结果与结论:①建造帕金森细胞模型最佳脂多糖的质量浓度为600 μg/L,最佳硫辛酸干预浓度为25 μmol/L;②硫辛酸干预后可以促进酪氨酸羟化酶阳性细胞表达,减少帕金森病细胞模型的炎症因子释放,并且可以抑制NF-κBp65的产生,提高酪氨酸羟化酶含量;③结果提示,硫辛酸对帕金森病细胞模型的作用可能通过抑制NF-κB信号通路,减轻炎症状态,从而起到对神经元的保护作用。

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
ORCID: 0000-0001-6267-149X(高华)

关键词: 硫辛酸, 帕金森病, 脂多糖, NF-κB, PC12细胞, 白细胞介素6, 肿瘤坏死因子α, 组织构建

Abstract:

BACKGROUND: Neuroimmune and inflammatory reaction have been shown to participate in the occurrence of Parkinson’s disease. Lipoic acid possesses anti-inflammatory and neuroprotective roles.
OBJECTIVE: To investigate the protective effects of lipoic acid on PC12 cell models of Parkinson’s disease induced by lipopolysaccharide and the underlying mechanism. 
METHODS: PC12 cells were divided into blank control, model (Parkinson’s disease model induced by lipopolysaccharide) and treatment (Parkinson’s disease model treated by lipoic acid) groups. PC12 cells were pretreated with lipoic acid for 2 hours, and then stimulated with lipopolysaccharide. The optimal concentration of lipopolysaccharide and lipoic acid was determined by cell counting-kit 8 assay. The expression of tyrosine hydroxylase was detected by immunohistochemistry. The levels of tumor necrosis factor α and interleukin 6 were detected by ELISA kit. The protein expression levels of nuclear factor-κBp65 and tyrosine hydroxylase were detected by western blot assay.
RESULTS AND CONCLUSION: The optimal concentration of lipopolysaccharide was 600 μg/L for constructing cell model of Parkinson disease, and 25 μmol/L lipoic acid was the optimal intervention concentration. Lipoic acid could increase the number of tyrosine hydroxylase positive cells, reduce the release of inflammatory factors in cell model of Parkinson’s disease, inhibit the production of nuclear factor-κBp65 and increase tyrosine hydroxylase content. Therefore, lipoic acid exhibits its effects on cell model of Parkinson’s disease through inhibiting the nuclear factor-κB signaling pathway and reducing inflammation, thereby exerting neuroprotection.

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

Key words: Thioctic Acid, Parkinson Disease, Lipopolysaccharides, Interleukin-6, Tumor Necrosis Factor-alpha, Tissue Engineering

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