中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (13): 2736-2743.doi: 10.12307/2025.049

• 干细胞培养与分化 stem cell culture and differentiation • 上一篇    下一篇

枸杞多糖调节线粒体动力学改善过氧化氢诱导 SH-SY5Y 细胞的凋亡

王记委1,2,李雁冰1,2,郭敏芳2,孟  涛2,于婧文2,刘晓琴2,穆秉桃2,贾思玮1,2,马存根1,2,尉杰忠1,2,3   

  1. 1山西中医药大学神经生物学研究中心/国家中医药管理局益气活血法治疗多发性硬化重点研究室,山西省晋中市   030619;2山西大同大学脑科学研究所,山西省大同市   037009;3大同市第五人民医院,山西省大同市   037009
  • 收稿日期:2023-12-05 接受日期:2024-03-14 出版日期:2025-05-08 发布日期:2024-09-11
  • 通讯作者: 尉杰忠,教授,博士生导师,山西中医药大学神经生物学研究中心/国家中医药管理局益气活血法治疗多发性硬化重点研究室,山西省晋中市 030619;山西大同大学脑科学研究所,山西省大同市 037009;大同市第五人民医院,山西省大同市 037009; 共同通讯作者:马存根,博士生导师,山西中医药大学神经生物学研究中心/国家中医药管理局益气活血法治疗多发性硬化重点研究室,山西省晋中市 030619;山西大同大学脑科学研究所,山西省大同市 037009
  • 作者简介:王记委,男,1995年生,河南省驻马店市人,汉族,山西中医药大学在读硕士,主要从事神经变性疾病的基础研究。 共同第一作者 :李雁冰,女,1996年生,广东省梅州市人,汉族,山西中医药大学在读硕士,主要从事神经变性疾病的基础研究。
  • 基金资助:
    山西省 2022年度“四个一批”科技兴医创新计划项目(2022XM33),项目负责人:尉杰忠;山西省自然科学研究面上项目(202303021211244),项目负责人:尉杰忠;山西省中医药管理局科研课题项目(2023ZYYB2042),项目负责人:尉杰忠;山西省中医重点实验室建设项目(zyyyjs2024027),项目负责人:尉杰忠;山西省基础研究计划项目(20210302123476,20210302123478),项目负责人:郭敏芳;山西省卫健委医学科技领军团队(2020TD05),项目负责人:马存根;山西大同大学大学生创新创业训练计划项目(XDC2022174),项目负责人:郭敏芳;山西大同大学基础研究项目(2022K17),项目负责人:于婧文;山西省基础研究计划青年科学研究项目(20210302124276),项目负责人:刘晓琴

Lycium barbarum polysaccharide regulates mitochondrial dynamics to improve H2O2-induced apoptosis of SH-SY5Y cells

Wang Jiwei1, 2, Li Yanbing1, 2, Guo Minfang2, Meng Tao2, Yu Jingwen2, Liu Xiaoqin2, Mu Bingtao2, Jia Siwei1, 2, Ma Cungen1, 2, Yu Jiezhong1, 2, 3   

  1. 1Research Center of Neurobiology/Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi Province, China; 2Institute of Brain Science, Shanxi Datong University, Datong 037009, Shanxi Province, China; 3Datong Fifth People’s Hospital, Datong 037009, Shanxi Province, China
  • Received:2023-12-05 Accepted:2024-03-14 Online:2025-05-08 Published:2024-09-11
  • Contact: Yu Jiezhong, Professor, Doctoral supervisor, Research Center of Neurobiology/Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi Province, China; Institute of Brain Science, Shanxi Datong University, Datong 037009, Shanxi Province, China; Datong Fifth People’s Hospital, Datong 037009, Shanxi Province, China; Co-corresponding author: Ma Cungen, Doctoral supervisor, Research Center of Neurobiology/Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi Province, China; Institute of Brain Science, Shanxi Datong University, Datong 037009, Shanxi Province, China
  • About author:Wang Jiwei, Master candidate, Research Center of Neurobiology/Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi Province, China; Institute of Brain Science, Shanxi Datong University, Datong 037009, Shanxi Province, China Li Yanbing, Master candidate, Research Center of Neurobiology/Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi Province, China; Institute of Brain Science, Shanxi Datong University, Datong 037009, Shanxi Province, China Wang Jiwei and Li Yanbing contributed equally to this article.
  • Supported by:
    “Four Batches” Science and Technology Innovation Project of Shanxi Province in 2022, No. 2022XM33 (to YJZ); Shanxi Province Natural Science Research General Project No. 202303021211244 (to YJZ); Shanxi Provincial Administration of Traditional Chinese Medicine Scientific Research Project No.2023ZYYB2042 (to YJZ); Shanxi Provincial Key Laboratory of Traditional Chinese Medicine Construction project No. zyyyjs2024027 (to YJZ); Shanxi Basic Research Plan Project, No. 20210302123476, 20210302123478 (to GMF); Medical Science and Technology Leader Team of Shanxi Health Commission, No. 2020TD05 (to MCG); College Students Innovation Entrepreneurship Training Program of Shanxi Datong University, No. XDC2022174 (to GMF); Basic Research Project of Shanxi Datong University, No. 2022K17 (to YJW); Youth Scientific Research Project of Shanxi Basic Research Program, No. 20210302124276 (to LXQ)

摘要:

文题释义:

枸杞多糖:是从枸杞中提取而得的一种水溶性多糖,是枸杞子中的主要功效成分,具有抗氧化活性、抗肿瘤特性、免疫调节和神经保护等多种作用。
线粒体动力学:指在相关蛋白质的调控下,线粒体不断进行动态融合及分裂,从而完成形态变化进而维持线粒体网络结构整体稳定性的过程。线粒体结构的完整性是细胞生理活动及病理调控的功能基础。

摘要
背景:大量研究结果证明,神经退行性疾病与氧化应激损伤和线粒体动力学失衡密切相关。课题组前期研究表明枸杞多糖具有神经保护作用,但其能否通过调控线粒体动力学异常来改善氧化应激损伤引发的细胞凋亡尚不明确。
目的:研究枸杞多糖对过氧化氢诱导人源神经母瘤细胞SH-SY5Y凋亡的影响。
方法:将SH-SY5Y细胞分3组培养:对照组常规培养24 h,过氧化氢组加入过氧化氢处理24 h,枸杞多糖组加入枸杞多糖处理2 h后再加入过氧化氢处理24 h。处理结束后,采用试剂盒检测细胞沉淀中丙二醛、谷胱甘肽和超氧化物歧化酶水平,JC-1试剂盒检测线粒体膜电位,MTT法检测细胞活力,TUNEL法检测细胞凋亡情况,免疫荧光染色与Western Blot检测线粒体动力学相关蛋白(磷酸化启动蛋白1、线粒体分裂蛋白1、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)与凋亡蛋白(Bax、Bcl-2、Caspase-3)表达。
结果与结论:①与对照组相比,过氧化氢组丙二醛水平升高(P < 0.05),超氧化物歧化酶和谷胱甘肽水平降低(P < 0.05);与过氧化氢组相比,枸杞多糖组丙二醛水平降低(P < 0.05),超氧化物歧化酶和谷胱甘肽水平升高(P < 0.05);②过氧化氢组线粒体膜电位低于对照组(P < 0.05),枸杞多糖组线粒体膜电位高于过氧化氢组(P < 0.05);③与对照组相比,过氧化氢组细胞凋亡率与Bax、Caspase-3蛋白表达升高(P < 0.05),细胞活力与Bcl-2蛋白表达降低(P < 0.05);与过氧化氢组相比,枸杞多糖组细胞凋亡率与Bax、Caspase-3蛋白表达降低(P < 0.05),细胞活力与Bcl-2蛋白表达升高(P < 0.05);④与对照组相比,过氧化氢组磷酸化启动蛋白1、线粒体分裂蛋白1的蛋白表达升高(P < 0.05),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的蛋白表达降低(P < 0.05);与过氧化氢组相比,枸杞多糖组磷酸化启动蛋白1、线粒体分裂蛋白1的蛋白表达降低(P < 0.05),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的蛋白表达升高(P < 0.05);⑤结果表明,枸杞多糖可通过调节线粒体动力学来改善氧化应激损伤诱导的SH-SY5Y细胞凋亡。

https://orcid.org/0009-0000-6086-1855 (王记委) 


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: lycium barbarum polysaccharides, oxidative stress, mitochondrial dynamics, neurodegenerative disease, apoptosis

Abstract: BACKGROUND: A large number of studies have shown that neurodegenerative diseases are closely related to oxidative stress injury and the imbalance of mitochondrial dynamics. Lycium barbarum polysaccharides have a neuroprotective effect. However, it is not clear whether lycium barbarum polysaccharides can ameliorate apoptosis induced by oxidative stress injury by regulating abnormal mitochondrial dynamics.
OBJECTIVE: To study the effect of lycium barbarum polysaccharides on apoptosis induced by H2O2 in SH-SY5Y human neuroblastoma cells. 
METHODS: SH-SY5Y cells were cultured in three groups. The control group was cultured for 24 hours. The hydrogen peroxide group was treated with H2O2 for 24 hours, and the lycium barbarum polysaccharide group was treated with lycium barbarum polysaccharide for 2 hours and then treated with H2O2 for 24 hours. After treatment, the levels of malondialdehyde, glutathione, and superoxide dismutase in the precipitation of the cells were detected by kit. Mitochondrial membrane potential was detected by JC-1 kit. Cell viability was detected by MTT assay. Apoptosis was detected by TUNEL. The expression levels of mitochondrial dynamics-related proteins (phosphorylated promoter protein 1, mitochondrial fission protein 1, mitochondrial fusion protein 1, mitochondrial fusion protein 2, and optic atrophy protein 1) and apoptotic proteins (Bax, Bcl-2, and Caspase-3) were detected by immunofluorescence staining and western blot assay.
RESULTS AND CONCLUSION: (1) Compared with the control group, the levels of malondialdehyde were increased (P < 0.05), and the levels of superoxide dismutase and glutathione were decreased (P < 0.05) in the H2O2 group. Compared with the H2O2 group, the malondialdehyde level was decreased (P < 0.05), and the superoxide dismutase and glutathione levels were increased (P < 0.05) in the lycium barbarum polysaccharide group. (2) The mitochondrial membrane potential in the H2O2 group was lower than that in the control group (P < 0.05), and that of lycium barbarum polysaccharide group was higher than that of the H2O2 group (P < 0.05). (3) Compared with the control group, the apoptosis rate and the expression of Bax and Caspase-3 protein were increased (P < 0.05), while the cell viability and the expression of Bcl-2 protein were decreased (P < 0.05) in the H2O2 group. Compared with the H2O2 group, the apoptosis rate and the expression of Bax and Caspase-3 protein were decreased (P < 0.05), while the cell viability and the expression of Bcl-2 protein were increased (P < 0.05) in the lycium barbarum polysaccharide group. (4) Compared with the control group, the protein expression levels of phosphorylated promoter protein 1 and mitochondrial fission protein 1 were increased (P < 0.05), and the protein expression levels of mitochondrial fusion protein 1, mitochondrial fusion protein 2, and optic atrophy protein 1 were decreased (P < 0.05) in the H2O2 group. Compared with the H2O2 group, the protein expression levels of phosphorylated promoter protein 1 and mitochondrial fission protein 1 were decreased (P < 0.05), and the protein expression levels of mitochondrial fusion protein 1, mitochondrial fusion protein 2, and optic atrophy protein 1 were increased (P < 0.05) in the lycium barbarum polysaccharide group. (5) These results indicate that lycium barbarum polysaccharide can improve SH-SY5Y cell apoptosis caused by oxidative stress damage by regulating mitochondrial dynamics.

Key words: 枸杞多糖, 氧化应激, 线粒体动力学, 神经退行性疾病, 细胞凋亡

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