中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (28): 7287-7296.doi: 10.12307/2026.822

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

运动性和病理性心脏肥大模型小鼠的差异蛋白质组学分析

秦  娣1,2,秦学林2,3,李  竹1,叶家驰2,3,陈  淦4,林  毅5,彭  勇2,3   

  1. 南京体育学院,1运动健康学院,3体育科学研究院,江苏省南京市  210014;2江苏省运动与健康工程协同创新中心,江苏省南京市  210014;4湖南师范大学体育学院,湖南省长沙市  410012;5南京中医药大学国有资产管理处,江苏省南京市  210023
  • 收稿日期:2025-08-14 修回日期:2025-12-08 出版日期:2026-10-08 发布日期:2026-02-10
  • 通讯作者: 彭勇,博士,高级实验师,硕士生导师,南京体育学院体育科学研究院,江苏省南京市 210014;江苏省运动与健康工程协同创新中心,江苏省南京市 210014
  • 作者简介:秦娣,女,1980年生,江苏省镇江市人,汉族,博士,副教授,硕士生导师,主要从事运动干预与健康促进方面的研究。
  • 基金资助:
    江苏省高等学校基础科学(自然科学)研究重大项目(25KJA180002),项目负责人:秦娣;江苏省高等学校基础科学(自然科学)研究重大项目(25KJA180003),项目负责人:彭勇;江苏省高校“青蓝工程”中青年学术带头人项目,项目负责人:秦娣;江苏省高等学校大学生创新创业训练计划国家级项目(202510330021),项目负责人:李竹;南京体育学院“1+1”优秀学术团队项目(XSTD202406),项目负责人:叶家驰

Differential proteomic analysis of exercise-induced and pathological cardiac hypertrophy models in mice

Qin Di1, 2, Qin Xuelin2, 3, Li Zhu1, Ye Jiachi2, 3, Chen Gan4, Lin Yi5, Peng Yong2, 3   

  1. 1School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, Jiangsu Province, China; 2Jiangsu Sports and Health Engineering Collaborative Innovation Center, Nanjing 210014, Jiangsu Province, China; 3Sports Science Research Institute, Nanjing Sport Institute, Nanjing 210014, Jiangsu Province, China; 4School of Physical Education, Hunan Normal University, Changsha 410012, Hunan Province, China; 5State Owned Assets Management Office, Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu Province, China
  • Received:2025-08-14 Revised:2025-12-08 Online:2026-10-08 Published:2026-02-10
  • Contact: Peng Yong, PhD, Senior experimentalist, Master’s supervisor, Jiangsu Sports and Health Engineering Collaborative Innovation Center, Nanjing 210014, Jiangsu Province, China; Sports Science Research Institute, Nanjing Sport Institute, Nanjing 210014, Jiangsu Province, China
  • About author:Qin Di, PhD, Associate professor, Master’s supervisor, School of Sports and Health, Nanjing Sport Institute, Nanjing 210014, Jiangsu Province, China; Jiangsu Sports and Health Engineering Collaborative Innovation Center, Nanjing 210014, Jiangsu Province, China
  • Supported by:
    Major Project of Basic Science (Natural Science) Research in Jiangsu Higher Education Institutions, No. 25KJA180002 (to QD); Major Project of Basic Science (Natural Science) Research in Jiangsu Higher Education Institutions, No. 25KJA180003 (to PY); Young and Middle-aged Academic Leaders of “Blue Project” in Jiangsu Province (to QD); National Level Project of Innovation and Entrepreneurship Training Program for College Students in Jiangsu Province, No. 202510330021 (to LZ); The "1+1" Excellent Academic Team Project of Nanjing Sport Institute, No. XSTD202406 (to YJC)

摘要:


文题释义:
运动性心脏肥大:是长期规律性运动训练诱导的生理性心脏适应,主要表现为左心室壁增厚、心腔扩大及心脏质量增加,是机体对运动负荷的代偿反应。运动性心脏肥大能够提高心脏的泵血能力和运动耐力,通常不会引起心功能障碍,这种适应性改变具有显著的心血管保护作用。
病理性心脏肥大:是以心肌细胞体积增大和心脏质量增加为特征的心肌适应性病理改变,主要由高血压或主动脉狭窄引起慢性压力超负荷、瓣膜反流引起容量超负荷、心肌缺血、遗传性心肌病等因素诱发,伴随心肌纤维化、炎症反应和代谢重编程等,最终导致心脏收缩舒张功能受损和心力衰竭。

背景:将运动性心脏肥大的机制造福病理性心脏肥大患者,是当前心血管研究的热点领域之一,然而,运动性和病理性心脏肥大两者差异的分子机制尚未完全阐明。
目的:以运动性和病理性心脏肥大模型小鼠为研究对象,基于心脏蛋白质组学寻找病理性心脏肥大的潜在干预靶点。
方法:将21只6-8周龄雄性C57BL/6J小鼠随机分为对照组、运动组和异丙肾上腺素组,每组7只。运动组小鼠持续训练8周建立运动性心脏肥大模型,异丙肾上腺素组小鼠皮下注射异丙肾上腺素7 d建立病理性心脏肥大模型,通过心脏质量指数、心胫比、苏木精-伊红染色、麦胚芽凝集素染色和天狼星红染色验证造模成功后,应用串联质量标签技术揭示2种不同心脏肥大模型的差异蛋白表达水平和功能特征。
结果与结论:①与对照组相比,运动组与异丙肾上腺素组小鼠的心脏质量指数和心胫比显著升高(P < 0.001,P < 0.05);与对照组相比,异丙肾上腺素组小鼠心肌细胞排列紊乱,观察到大量炎症细胞浸润,心肌细胞损伤明显;②与对照组相比,运动组与异丙肾上腺素组小鼠的心肌细胞横截面积显著增加(P < 0.05,P < 0.01);异丙肾上腺素组心肌纤维化面积显著高于对照组(P < 0.01);③运动组和对照组相比,有46个差异表达蛋白;异丙肾上腺素组和对照组相比,有302个差异表达蛋白;运动组和异丙肾上腺素组相比,有340个差异表达蛋白;3个比较组差异表达蛋白中,2个交集蛋白为过氧化物酶酰基辅酶A氧化酶1和半乳糖凝集素3;④基因本体和京都基因与基因组百科全书富集分析提示,运动可能通过上调过氧化物酶酰基辅酶A氧化酶1促进脂肪酸代谢等诱导心脏生理性肥大,异丙肾上腺素可能通过下调过氧化物酶酰基辅酶A氧化酶1导致过氧化物酶体失调引发脂毒性等诱导心脏病理性肥大。结果提示:过氧化物酶酰基辅酶A氧化酶1和半乳糖凝集素3可能成为病理性心脏肥大的干预靶点。
https://orcid.org/0000-0002-7284-7361(秦娣)


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: 运动性心脏肥大, 病理性心脏肥大, 异丙肾上腺素, 串联质量标签, 过氧化物酶酰基辅酶A氧化酶1, 半乳糖凝集素3

Abstract: BACKGROUND: Improving outcomes for patients with pathological cardiac hypertrophy by leveraging the mechanisms of exercise-induced cardiac hypertrophy is currently a significant focus in cardiovascular research. However, the molecular mechanisms underlying the differences between exercise-induced and pathological cardiac hypertrophy remain incompletely understood.
OBJECTIVE: To identify potential therapeutic targets for pathological cardiac hypertrophy based on cardiac proteomics using mouse models of exercise-induced and pathological cardiac hypertrophy.
METHODS: Twenty-one male C57BL/6J mice, aged 6-8 weeks, were randomly divided into three groups: the control group, the exercise training group, and the isoproterenol group, with 7 mice in each group. Mice in the exercise training group were subjected to continuous exercise training for 8 weeks to establish a model of exercise-induced cardiac hypertrophy, while mice in the isoproterenol group were injected subcutaneously with isoproterenol for 7 days to establish a model of pathological cardiac hypertrophy. After successful modeling was verified by assessing the heart mass index, heart mass to tibial length ratio, and performing hematoxylin-eosin staining, wheat germ agglutinin staining, and Sirius red staining, the differential protein expression profiles and functional characteristics of the two cardiac hypertrophy models were analyzed using tandem mass tag-based proteomic technology.
RESULTS AND CONCLUSION: (1) Compared with the control group, the heart mass index and heart mass to tibial length ratio were significantly increased in the exercise training group and isoproterenol group (P < 0.001, P < 0.05). Myocardial cells in the isoproterenol group exhibited more severe damage compared with the control group, as evidenced by the disorganized arrangement of cardiomyocytes and extensive inflammatory cell infiltration. (2) The cross-sectional area of myocardial cells was significantly increased in the exercise training group and isoproterenol group compared with the control group (P < 0.05, P < 0.01). The area of myocardial fibrosis was significantly higher in the isoproterenol group compared with the control group (P < 0.01). (3) Proteomic analysis revealed 46 differentially expressed proteins in the exercise training group compared with the control group, 302 differentially expressed proteins in the isoproterenol group compared with the control group, and 340 differentially expressed proteins in the exercise training group compared with the isoproterenol group. Among the differentially expressed proteins in the three comparison groups, two intersection proteins were identified as peroxisomal acyl-coenzyme A oxidase 1 (Acox1) and galectin-3. (4) Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analysis suggested that exercise might induce physiological cardiac hypertrophy by upregulating Acox1 to promote fatty acid metabolism. In contrast, isoproterenol might induce pathological cardiac hypertrophy by downregulating Acox1, potentially leading to peroxisome dysregulation and lipotoxicity. These results suggest that Acox1 and galectin-3 proteins may serve as potential intervention targets for the treatment or prevention of pathological cardiac hypertrophy.


Key words: exercise-induced cardiac hypertrophy, pathological cardiac hypertrophy, isoproterenol, tandem mass tag, peroxisomal acyl-coenzyme A oxidase 1, galectin-3

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