山东科学 ›› 2023, Vol. 36 ›› Issue (6): 28-37.doi: 10.3976/j.issn.1002-4026.2023.06.005

• 药理与毒理 • 上一篇    下一篇

基于斑马鱼模型研究木蝴蝶苷A的抗阿尔茨海默病活性和作用机制

时瑞碟1,2(), 高鑫2, 王宝堃2, 高代丽2, 靳梦2,*(), 张秀军1,*()   

  1. 1.华北理工大学 心理与精神卫生学院,河北 唐山 063200
    2.齐鲁工业大学(山东省科学院) 生物研究所 山东省科学院药物筛选技术重点实验室,山东 济南 250103
  • 收稿日期:2023-01-31 出版日期:2023-12-20 发布日期:2023-12-07
  • 通信作者: * 靳梦(1985—),女,博士,研究员,硕士生导师,研究方向为神经系统疾病模型建立和神经药理学。E-mail:mjin1985@hotmail.com;张秀军(1966—),男,博士,教授,博士生导师,研究方向为药理学、毒理学。E-mail:zhangxiujun66@163.com
  • 作者简介:时瑞碟(1997—),女,硕士研究生,研究方向为神经药理学。E-mail:shiruidie@163.com
  • 基金资助:
    济南市“新高校20条”项目(2021GXRC106);齐鲁工业大学(山东省科学院)科教产融合试点工程项目(2022PY033);齐鲁工业大学(山东省科学院)科教产融合试点工程项目(2022JBZ01-06)

Anti-Alzheimer's disease activity of oroxin A and its mechanism of action based on zebrafish model

SHI Ruidie1,2(), GAO Xin2, WANG Baokun2, GAO Daili2, JIN Meng2,*(), ZHANG Xiujun1,*()   

  1. 1. College of Psychology and Mental Health, North China University of Science and Technology, Tangshan 063200, China
    2. Key Laboratory of Drug Screening Technology of Shandong Academy of Sciences, Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China
  • Received:2023-01-31 Online:2023-12-20 Published:2023-12-07

摘要:

基于六水合氯化铝诱导的斑马鱼阿尔茨海默病模型,探究木蝴蝶苷A的抗阿尔茨海默病活性及作用机制。将受精后3 d的野生型AB品系斑马鱼随机分为阴性对照组,80 μmol/L六水合氯化铝模型对照组,80 μmol/L六水合氯化铝与6 μmol/L多奈哌齐阳性对照组,80 μmol/L六水合氯化铝与不同浓度(5、10、20 μmol/L)木蝴蝶苷A受试物组。斑马鱼受精后6 d,利用明暗交替行为学实验观察不同处理组斑马鱼行为差异并分析其变化;通过硫黄素S染色测定各组斑马鱼头部Aβ斑块沉积数;采用酶活测定试剂盒检测各组斑马鱼乙酰胆碱酯酶活性;以实时荧光定量PCR检测自噬相关基因(beclin1ulk1bulk2atg7)的表达变化;借助分子对接技术验证木蝴蝶苷A与自噬相关蛋白(beclin1、ulk1b、ulk2和atg7)结合的可靠性。结果表明,木蝴蝶苷A缓解了六水合氯化铝造成的斑马鱼运动障碍,降低了Aβ斑块沉积数和乙酰胆碱酯酶活性水平,使自噬相关基因的异常表达趋于正常。该研究初步揭示了木蝴蝶苷A能够缓解六水合氯化铝诱导的斑马鱼运动障碍,其机制可能与激活细胞自噬有关,这为木蝴蝶苷A的临床应用及其治疗阿尔茨海默病的相关研究提供了理论依据。

关键词: 阿尔茨海默病, 六水合氯化铝, 自噬, 斑马鱼, 木蝴蝶苷A

Abstract:

To investigate the ameliorative effects of oroxin A on Alzheimer's disease (AD) and the underlying mechanism of action, a zebrafish AD model induced by aluminum chloride hexahydrate (AlCl3) was used. Wild-type zebrafish AB larvae at 3 dpf(days post fertilization) were divided into different groups, including negative control group, AlCl3 (80 μmol/L) model control group, AlCl3 (80 μmol/L) combined with donepezil (6 μmol/L) positive control group, and AlCl3 (80 μmol/L) combined with different concentrations (5, 10, and 20 μmol/L) of oroxin A test group. At 6 dpf, zebrafish behavior was monitored and analyzed using zebrafish light-dark locomotion test. Aβ deposition in zebrafish heads was assayed by thioflavin S staining. Acetylcholine assay kit tested acetylcholinesterase (AchE) activity. In addition, the expression of autophagy-related genes(beclin1ulk1bulk2 and atg7) was tested by real-time quantitative polymerase chain reaction. Molecular docking was performed to validate the interaction between oroxin A and autophagy-related protein(beclin1、ulk1b、ulk2 and atg7). The results indicated that oroxin A significantly relieved the dyskinesia and inhibited Aβ deposition and AchE activity of zebrafish induced by AlCl3. The expression of autophagy-related genes tended to be normal after oroxin A treatment. This study preliminarily revealed that oroxin A alleviated AlCl3-induced AD symptoms in zebrafish, where the underlying mechanism of action is possibly associated with activated autophagy, providing a theoretical basis for the clinical application of oroxin A and its related research in treating AD.

Key words: Alzheimer's disease, aluminum chloride hexahydrate, autophagy, zebrafish, oroxin A

中图分类号: 

  • R965