中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (34): 8986-8993.doi: 10.12307/2026.892

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

雷公藤甲素缓解过氧化氢诱导SH-SY5Y细胞凋亡的线粒体动力学机制

穆秉桃1,郭敏芳1,胡芬琦1,刘淇源1,贾  辉1,徐明源1,陈佳媛2,张慧宇1,孟  涛1,尉杰忠1,3   

  1. 1山西大同大学脑科学研究所/分子细胞免疫学大同市重点实验室,山西省大同市  037009;2山西中医药大学,山西省晋中市  030619;3山西大同大学附属第一医院/大同市第五人民医院,山西省大同市  037009

  • 收稿日期:2025-08-14 修回日期:2026-02-26 出版日期:2026-12-08 发布日期:2026-04-14
  • 通讯作者: 尉杰忠,博士,教授,博士生导师,山西大同大学脑科学研究所/分子细胞免疫学大同市重点实验室,山西省大同市 037009;山西大同大学附属第一医院/大同市第五人民医院,山西省大同市 037009
  • 作者简介:穆秉桃,女,1976年生,山西省大同市人,汉族,2011年青海大学医学院毕业,硕士,副教授,主要从事神经系统疾病方面的研究。
  • 基金资助:
    大同市基础研究计划项目(2024063),项目负责人:穆秉桃;大同市平台计划项目(2024093),项目负责人:孟涛;山西省基础研究计划项目(20210302123476),项目负责人:郭敏芳;山西省基础研究计划项目(20210302123478),项目负责人:张慧宇;中医药重点研究室项目单位(zyyyjs2024027):中医药防治痴呆疾病重点研究室,项目负责人:尉杰忠;山西省中医药科研课题计划项目(2023ZYYB2042),项目负责人:尉杰忠

Mitochondrial kinetic mechanism by which triptolide alleviates hydrogen peroxide-induced apoptosis in SH-SY5Y cells

Mu Bingtao1, Guo Minfang1, Hu Fenqi1, Liu Qiyuan1, Jia Hui1, Xu Mingyuan1, Chen Jiayuan2, Zhang Huiyu1, Meng Tao1, Yu Jiezhong1, 3#br#

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  1. 1Institute of Brain Science/Key Laboratory of Molecular Cellular Immunology in Datong, Shanxi Datong University, Datong 037009, Shanxi Province, China; 2Shanxi University of Traditional Chinese Medicine, Jinzhong 030619, Shanxi Province, China; 3Datong Fifth People's Hospital, Shanxi Datong University, 037009, Shanxi Province, China
  • Received:2025-08-14 Revised:2026-02-26 Online:2026-12-08 Published:2026-04-14
  • Contact: Wei Jiezhong, PhD, Professor, Doctoral supervisor, Institute of Brain Science/Key Laboratory of Molecular Cellular Immunology in Datong, Shanxi Datong University, Datong 037009, Shanxi Province, China; Datong Fifth People's Hospital, Shanxi Datong University, 037009, Shanxi Province, China
  • About author:Mu Bingtao, MS, Associate professor, Institute of Brain Science/Key Laboratory of Molecular Cellular Immunology in Datong, Shanxi Datong University, Datong 037009, Shanxi Province, China
  • Supported by:
    Research Project of Datong City Basic Research Program, No. 2024063 (to MBT); Research Project of Datong City Platform Research Program, No. 2024093 (to MT); Research Project of Shanxi Province Basic Research Program, No. 20210302123476 (to GMF); Research Project of Shanxi Province Basic Research Program, No. 20210302123478 (to ZHY); Project Unit of Key Research Laboratory of Traditional Chinese Medicine: Key Research Laboratory of Traditional Chinese Medicine for the Prevention and Treatment of Dementia, No. zyyyjs2024027 (to YJZ); Shanxi Province Traditional Chinese Medicine Research Project, No. 2023ZYYB2042 (to YJZ) 

摘要:



文题释义:
雷公藤甲素:从中药雷公藤中提取的二萜内酯化合物,具有抗炎、抑制氧化应激、调节免疫、抗肿瘤及神经保护等作用。
线粒体动力平衡:线粒体是产生活性氧的主要场所,线粒体通过融合与分裂维持动态平衡,以适应细胞的能量需求和环境变化。

背景:课题组前期研究发现雷公藤甲素对神经细胞有保护作用,可以改善神经退行性疾病症状,但其是否通过改善线粒体动力学异常发挥作用尚需进一步探究。
目的:探索雷公藤甲素调控线粒体融合分裂平衡改善过氧化氢诱导的SH-SY5Y细胞凋亡的作用及机制。
方法:培养人神经母细胞瘤细胞SH-SY5Y,分为对照组、模型组(200 μmol/L过氧化氢)和雷公藤甲素组(2.5 nmol/L雷公藤甲素+200 μmol/L过氧化氢),干预24 h后检测氧化应激指标超氧化物歧化酶和丙二醛水平、线粒体膜电位、细胞凋亡水平;Western blot检测凋亡相关蛋白、线粒体动力相关蛋白和呼吸链相关蛋白的表达,免疫荧光染色法检测磷酸化发动蛋白相关蛋白1、视神经萎缩症蛋白1、细胞色素C氧化酶1和ATP合酶F1亚基α表达。
结果与结论:与对照组相比,模型组超氧化物歧化酶活性、线粒体膜电位、抗凋亡蛋白Bcl-2、线粒体融合蛋白1、线粒体融合蛋白2、视神经萎缩症蛋白1以及泛醌氧化还原酶亚基B8、泛醇-细胞色素C还原酶核心蛋白2、细胞色素C氧化酶1、琥珀酸脱氢酶B、ATP合酶F1亚基α表达均显著降低(P < 0.05);而丙二醛水平、促凋亡蛋白Bax和Caspase-3、线粒体分裂蛋白1、磷酸化发动蛋白相关蛋白1表达以及细胞凋亡率均显著增高(P < 0.05);与模型组相比,雷公藤甲素干预能降低丙二醛水平,提高超氧化物歧化酶活性和线粒体膜电位,促进融合蛋白表达,抑制分裂蛋白表达,提高氧化磷酸化复合蛋白水平,降低细胞凋亡率(P < 0.05)。以上结果证实,雷公藤甲素可调控线粒体动力失衡缓解过氧化氢诱导的SH-SY5Y细胞凋亡。

https://orcid.org/0009-0003-5173-2404(穆秉桃)


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 雷公藤甲素, 氧化应激, 神经元, 细胞凋亡, 线粒体动力平衡, 氧化磷酸化

Abstract: BACKGROUND: Previous studies from our group have shown that triptolide exerts protective effects on nerve cells and alleviates symptoms of neurodegenerative diseases. However, whether it acts by improving mitochondrial dynamic abnormalities requires further investigation.
OBJECTIVE: To explore the effect and mechanism of triptolide in regulating the mitochondrial fusion-fission balance to mitigate hydrogen peroxide (H₂O₂)-induced apoptosis in SH-SY5Y cells.
METHODS: Human neuroblastoma SH-SY5Y cells were cultured and divided into three groups: control group, model group (200 μmol/L H₂O₂), and triptolide group (2.5 nmol/L triptolide + 200 μmol/L H₂O₂). After 24 hours of intervention, oxidative stress markers (superoxide dismutase activity and malondialdehyde levels), mitochondrial membrane potential, and apoptotic rate were measured. Western blot was used to detect the expression of apoptosis-related proteins, mitochondrial dynamics-related proteins, and respiratory chain-related proteins. Immunofluorescence staining was used to detect the expression of phospho-dynamin-related protein 1, optic atrophy protein 1, cytochrome c oxidase 1, and ATP synthase F1 subunit α.
RESULTS AND CONCLUSION: Compared with the control group, the model group showed significantly decreased superoxide dismutase activity, mitochondrial membrane potential, and expression levels of anti-apoptotic protein Bcl-2, mitochondrial fusion protein 1, mitochondrial fusion protein 2, optic atrophy protein 1, and ubiquinone oxidoreductase subunit B8, panthenol-cytochrome C reductase core protein 2, cytochrome C oxidase 1, succinate dehydrogenase B, and ATP synthase F1 subunit α (P < 0.05). In contrast, malondialdehyde levels, expression of pro-apoptotic proteins (Bax, Caspase-3) and mitochondrial fission protein 1 and phospho-p161, and apoptotic rate were significantly increased (P < 0.05). Compared with the model group, triptolide intervention reduced malondialdehyde levels, increased superoxide dismutase activity and mitochondrial membrane potential, promoted the expression of fusion proteins, suppressed the expression of fission proteins, elevated the levels of oxidative phosphorylated complex protein, and decreased the apoptotic rate (P < 0.05). These results confirm that triptolide can alleviate H₂O₂-induced apoptosis in SH-SY5Y cells by regulating mitochondrial dynamic imbalance.

Key words: triptolide, oxidative stress, neuron, apoptosis, mitochondrial dynamic balance, oxidative phosphorylation

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