中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (13): 2713-2719.doi: 10.12307/2025.074

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β-羟基丁酸改善β淀粉样蛋白1-42诱导小鼠海马神经元HT22细胞的能量障碍

叶育采1,付朝晶1,李  燕2,李欣儒1,柴世凡1,蔡红艳3,王昭君1   

  1. 山西医科大学,1基础医学院生理学系,细胞生理学教育部重点实验室,2医学科学院,3基础医学院微生物与免疫学教研室,山西省太原市   030000
  • 收稿日期:2024-03-07 接受日期:2024-05-07 出版日期:2025-05-08 发布日期:2024-09-11
  • 通讯作者: 王昭君,博士,副教授,山西医科大学基础医学院生理学系,细胞生理学教育部重点实验室,山西省太原市 030000
  • 作者简介:叶育采,女,1998年生,广东省茂名市人,汉族,山西医科大学基础医学院生理学系在读硕士,主要从事阿尔茨海默病的防治及机制研究。
  • 基金资助:
    国家自然科学基金面上项目(82171428),项目负责人:蔡红艳;山西省基础研究自然科学研究面上项目(20210302123306),项目负责人:王昭君

Beta-hydroxybutyric acid improves energy dysfunction of mouse hippocampal neuron HT22 cells induced by amyloid-β protein 1-42

Ye Yucai1, Fu Chaojing1, Li Yan2, Li Xinru1, Chai Shifan1, Cai Hongyan3, Wang Zhaojun1   

  1. Wang Zhaojun, PhD, Associate professor, Department of Physiology, School of Basic Medicine, Shanxi Medical University, Key Laboratory of Cell Physiology, Ministry of Education, Taiyuan 030000, Shanxi Province, China
  • Received:2024-03-07 Accepted:2024-05-07 Online:2025-05-08 Published:2024-09-11
  • Contact: Wang Zhaojun, PhD, Associate professor, Department of Physiology, School of Basic Medicine, Shanxi Medical University, Key Laboratory of Cell Physiology, Ministry of Education, Taiyuan 030000, Shanxi Province, China
  • About author:Ye Yucai, Master candidate, Department of Physiology, School of Basic Medicine, Shanxi Medical University, Key Laboratory of Cell Physiology, Ministry of Education, Taiyuan 030000, Shanxi Province, China
  • Supported by:
    National Natural Science Foundation of China (General Project), No. 82171428 (to CHY); Shanxi Province Basic Research Natural Science Research (General Project), No. 20210302123306 (to WZJ)

摘要:

文题释义:

α-酮戊二酸脱氢酶:三羧酸循环中一种催化α-酮戊二酸琥珀酰辅酶反应的复合酶,有利于ATP产生。
Na+K+-ATP酶:为细胞膜中存在的一种特殊蛋白质,可以分解ATP获得能量,并利用此能量进行Na+、K+的主动转运,即能逆浓度梯度把Na+从细胞内转运到细胞外,把K+从细胞外转运入细胞内,控制细胞膜内外的K+和Na+浓度差,维持细胞内外液的渗透压。
线粒体生物能量功能:即线粒体生物能量学,指正常线粒体为细胞提供基本能量,包括通过电子传递链产生ATP,通过线粒体过渡孔调节钙处理和代谢,通过三羧酸循环中乙酰辅酶A的氧化产生能量,以及通过线粒体动力学(包括线粒体裂变和融合)维持线粒体完整性。线粒体生物能量丢失与人类疾病的发病机制有关。

摘要
背景:阿尔茨海默病患者存在严重的脑能量障碍,近年来基于酮体干预的脑能量拯救策略在阿尔茨海默病的治疗中越来越受到重视。
目的:探讨β-羟基丁酸能否改善β淀粉样蛋白1-42(β-amyloid protein 1-42,Aβ1-42)诱导的小鼠海马神经元HT22细胞能量障碍。
方法:将HT22细胞分为4组,分别为对照组、β-羟基丁酸组、Aβ1-42组、Aβ1-42+β-羟基丁酸组。使用相应试剂盒检测HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na+K+-ATP酶活性、线粒体膜电位及活性氧水平。
结果与结论:与对照组相比,Aβ1-42组HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na+K+-ATP酶活性、线粒体膜电位均显著降低(P < 0.05),活性氧水平显著升高(P < 0.05)。与Aβ1-42组相比,Aβ1-42+β-羟基丁酸组HT22细胞的存活率、ATP水平、α-酮戊二酸脱氢酶活性、Na+K+-ATP酶活性、线粒体膜电位均显著升高(P < 0.05),活性氧水平显著降低(P < 0.05)。结果表明:β-羟基丁酸提高了线粒体生物能量功能和细胞存活率,最终改善了Aβ1-42诱导的HT22细胞能量障碍。

https://orcid.org/0000-0003-2725-2358 (叶育采) 


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: 阿尔茨海默病, HT22细胞, β-羟基丁酸, 线粒体生物能量功能, 能量障碍, 三磷酸腺苷

Abstract: BACKGROUND: Patients with Alzheimer’s disease have severe brain energy disorders. In recent years, brain energy rescue strategies based on ketone body intervention have attracted more and more attention in the treatment of Alzheimer’s disease.
OBJECTIVE: To investigate whether β-hydroxybutyric acid can improve energy dysfunction by improving mitochondrial bioenergy function in HT22 cells of mouse hippocampal neurons induced by amyloid-β protein 1-42 (Aβ1-42). 
METHODS: HT22 cells were divided into four groups: Control, β-hydroxybutyric acid, Aβ1-42, Aβ1-42+ β-hydroxybutyric acid. Related detection kits were respectively used to detect HT22 cell survival rate, adenosine triphosphate level, α-ketoglutarate dehydrogenase activity, Na+K+-ATPase activity, mitochondrial membrane potential, and reactive oxygen species levels. 
RESULTS AND CONCLUSION: Compared with the control group, the survival rate, adenosine triphosphate level, α-ketoglutarate dehydrogenase activity, Na+K+-ATPase activity, and mitochondrial membrane potential of HT22 cells were significantly decreased (P < 0.05), and the level of reactive oxygen species was significantly increased (P < 0.05) in the Aβ1-42 group. Compared with the Aβ1-42 group, the survival rate, adenosine triphosphate level, α-ketoglutarate dehydrogenase activity, Na+K+-ATPase activity, and mitochondrial membrane potential of HT22 cells were significantly increased (P < 0.05), and the reactive oxygen species level was significantly decreased (P < 0.05) in the Aβ1-42+β-hydroxybutyric acid group. These results showed that β-hydroxybutyric acid improved mitochondrial bioenergetic function and ultimately improved Aβ1-42-induced energy impairment and survival rate in HT22 cells. 

Key words: Alzheimer’s disease, HT22 cell, β-hydroxybutyric acid, mitochondrial bioenergetic function, energy dysfunction, adenosine triphosphate

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