中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (18): 4627-4637.doi: 10.12307/2026.713

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

高强度间歇训练改善自发性高血压模型大鼠内皮祖细胞外泌体功能

路安然1,王晨宇2,张  艳3,黄华生3   

  1. 1郑州健康学院,河南省郑州市  450064;2郑州航空工业管理学院,河南省郑州市  450046;3广西中医药大学,广西壮族自治区南宁市  530021
  • 收稿日期:2025-05-19 接受日期:2025-09-06 出版日期:2026-06-28 发布日期:2025-12-04
  • 通讯作者: 黄华生,硕士,副教授,广西中医药大学,广西壮族自治区南宁市 530021
  • 作者简介:路安然,女,1992年生,河南省驻马店市人,汉族,硕士,讲师,主要从事运动健康促进方面的研究。
  • 基金资助:
    广西教育科学“十四五”规划重点项目(2023ZJY535),项目负责人:张艳;河南省科技攻关项目(232102321125), 项目负责人:王晨宇

High-intensity interval training improves the function of exosomes derived from endothelial progenitor cells in spontaneously hypertensive rats

Lu Anran1, Wang Chenyu2, Zhang Yan3, Huang Huasheng3   

  1. 1Zhengzhou Health College, Zhengzhou 450064, Henan Province, China; 2Zhengzhou University of Aeronautics, Zhengzhou 450046, Henan Province, China; 3Guangxi University of Chinese Medicine, Nanning 530021, Guangxi Zhuang Autonomous Region, China
  • Received:2025-05-19 Accepted:2025-09-06 Online:2026-06-28 Published:2025-12-04
  • Contact: Huang Huasheng, MS, Associate professor, Guangxi University of Chinese Medicine, Nanning 530021, Guangxi Zhuang Autonomous Region, China
  • About author:Lu Anran, MS, Lecturer, Zhengzhou Health College, Zhengzhou 450064, Henan Province, China
  • Supported by:
    Guangxi Education Science “14th Five-Year Plan” Key Project, No. 2023ZJY535 (to ZY); Henan Province Science and Technology Research Project, No. 232102321125 (to WCY)

摘要:


文题释义:
自发性高血压大鼠:是一种广泛用于高血压研究的动物模型,这种大鼠通过选择性育种获得,无需外部干预即可自发发展为高血压,通常在出生后几周内血压开始升高,并在数月内达到稳定水平。自发性高血压大鼠的病理特征与人类原发性高血压相似,包括血管阻力增加、心脏肥大和肾脏损伤等。由于遗传背景明确且易于繁殖,自发性高血压大鼠被广泛用于研究高血压的发病机制、药物治疗以及相关并发症(如心血管疾病和肾脏疾病)。
内皮祖细胞外泌体:是由内皮祖细胞分泌的纳米级囊泡,直径30-150 nm,携带蛋白质、脂质、mRNA、miRNA等生物活性分子,参与细胞间通讯和多种生理病理过程。内皮祖细胞外泌体具有促进血管新生、修复内皮损伤、抑制炎症和抗氧化等作用,在心血管疾病、组织修复和再生医学中展现出潜在的治疗潜能。

背景:高血压时内皮祖细胞与脑内皮细胞之间的外泌体通讯受损,这可能是导致高血压脑卒中患者预后不良的关键机制。运动康复是防治高血压脑卒中的重要非药物治疗手段,但具体机制未明。
目的:探讨高强度间歇训练对自发性高血压大鼠内皮祖细胞外泌体功能的影响并探讨可能机制。
方法:24只雄性自发性高血压大鼠随机分为运动组和对照组,运动组进行6周高强度间歇训练,对照组于笼内安静饲养,然后分离培养骨髓内皮祖细胞并获取外泌体,qPCR检测miR-27a表达量。用血管紧张素Ⅱ和低氧刺激处理脑神经瘤细胞(Neuro-2a细胞)后,与内皮祖细胞外泌体、miR-27a抑制剂共孵育,分为空白组(常氧高糖DMEM培养基培养)、损伤组(血管紧张素Ⅱ联合低氧处理)、损伤+对照外泌体组、损伤+运动外泌体组以及损伤+运动外泌体+miR-27a抑制剂组,评估Neuro-2a细胞外泌体摄取率、细胞存活率、活性氧水平以及细胞色素C、NADPH氧化酶4蛋白表达量。
结果与结论:①Neuro-2a细胞对运动组内皮祖细胞外泌体的摄取率升高;②运动上调内皮祖细胞外泌体以及Neuro-2a细胞中miR-27a表达量
(P < 0.05);③运动诱导的内皮祖细胞外泌体促进Neuro-2a细胞存活(P < 0.05),降低活性氧水平(P < 0.05),下调细胞色素C和NADPH氧化酶4蛋白表达量(P < 0.05),上述作用在给予miR-27a抑制剂后被削弱(P < 0.05)。结果表明:高强度间歇训练诱导的自发性高血压大鼠内皮祖细胞外泌体通过miR-27a途径减轻受损神经元氧化应激。

https://orcid.org/0009-0008-2921-7488(路安然)


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: 高强度间歇训练, 自发性高血压大鼠, 内皮祖细胞, 外泌体, 脑卒中, Neuro-2a细胞

Abstract: BACKGROUND: Under hypertensive conditions, exosome communication between endothelial progenitor cells and brain endothelial cells is impaired, which may be a key mechanism leading to poor prognosis in patients with hypertensive stroke. Exercise rehabilitation is an important non-drug means of preventing and treating hypertensive stroke, but the specific mechanism is unclear. 
OBJECTIVE: To investigate the effect of high-intensity interval training on the function of exosomes from endothelial progenitor cells in spontaneously hypertensive rats and explore the possible mechanism. 
METHODS: Twenty-four male spontaneously hypertensive rats were randomly assigned into exercise group or control group. The animals in the exercise group underwent 6 weeks of high-intensity interval training, while those in the control group were kept quietly in cage. After the experiment, bone marrow endothelial progenitor cells were isolated and cultured, and exosomes were obtained to detect the expression of miR-27a using qPCR. After treating neuroblastoma N2a (Neuro-2a) with angiotensin II and hypoxia, they were co-incubated with endothelial progenitor cell-derived exosomes and a miR-27a inhibitor. The cells were then divided into the following groups: a blank group (cultured in normoxic high-glucose DMEM medium), an injury group (treated with angiotensin II combined with hypoxia), an injury + control exosome group, an injury + exercise exosome group, and an injury + exercise exosome + miR-27a inhibitor group. The following parameters were assessed: exosome uptake rate, cell viability, reactive oxygen species levels, and the expression levels of cytochrome C and NADPH oxidase 4 protein. 
RESULTS AND CONCLUSION: (1) Exercise could increase the uptake efficiency of endothelial progenitor cell exosomes by Neuro-2a cells. (2) Exercise up-regulated the expression of miR-27a in endothelial progenitor cell exosomes and Neuro-2a cells (P < 0.05). (3) Exercise-induced endothelial progenitor cell exosomes improved the survival of Neuro-2a cells (P < 0.05), reduced the level of reactive oxygen species (P < 0.05) and down-regulated the protein expression of cytochrome C and NADPH oxidase 4 (P < 0.05), while the above effects were weakened after administration of miR-27a inhibitor (P < 0.05). To conclude, high-intensity interval training-induced exosomes from endothelial progenitor cells in spontaneously hypertensive rats alleviate the oxidative stress of damaged neurons through the miR-27a pathway. 


Key words: high-intensity interval training, spontaneously hypertensive rats, endothelial progenitor cell, exosome, stroke, Neuro-2a cells

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