中国神经再生研究(英文版) ›› 2025, Vol. 20 ›› Issue (11): 3330-3344.doi: 10.4103/NRR.NRR-D-23-01890

• 原著:退行性病与再生 • 上一篇    

(E)-2-(3,4-二羟基苯基)-3-羟基-4H-吡喃-4-1可减轻阿尔茨海默病神经炎症和认知障碍

  

  • 出版日期:2025-11-15 发布日期:2025-02-25

The compound (E)-2-(3,4-dihydroxystyryl)-3-hydroxy4H-pyran-4-one alleviates neuroinflammation and cognitive impairment in a mouse model of Alzheimer’s disease

Xueyan Liu1, 2, #, Wei Wu2, #, Xuejuan Li1, 2, Chengyan Wang3 , Ke Chai2 , Fanru Yuan1, 2, Huijuan Zheng1, 2, Yuxing Yao1 , Chenlu Li4, 5, *, Zu-Cheng Ye2, *, Daijun Zha1, *   

  1. 1 Department of Medicinal Chemistry, School of Pharmacy, Fujian Medical University, Fuzhou, Fujian Province, China;  2 Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian Province, China;  3 Institute of Laboratory Animal Center, Fujian Medical University, Fuzhou, Fujian Province, China;  4 Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian Province, China;  5 Department of Hyperbaric Oxygen, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian Province, China
  • Online:2025-11-15 Published:2025-02-25
  • Contact: Chenlu Li, MD, lichenlu@fjmu.edu.cn; Zu-Cheng Ye, PhD, zcye@fjmu.edu.cn; Daijun Zha, PhD, zhadj@fjmu.edu.cn.
  • Supported by:
    The study was supported by the Research Foundation for Talented Scholars of Fujian Medical University, No. XRCZX2018014 (to DZ), the Natural Science Foundation of Fujian Province, China, Nos. 2021J01693 (to DZ), 2021J02032 (to ZCY), and Startup Fund for Scientific Research, Fujian Medical University, No. 2019QH1017 (to CW).

摘要:

作者既往研究构建的一种焦甲烯酸衍生物(E)-2-(3,4-二羟基苯基)-3-羟基-4H-吡喃-4-1(D30),具有抗炎抗氧化,抑制Aβ聚集等特性,并能减轻东莨菪碱诱导的小鼠认知障碍,其作用类似于III期临床药物白藜芦醇。实验通过侧脑室注射Aβ原纤维建立了阿尔茨海默病小鼠模型,以评估D30对其神经病理学表现的影响。结果显示,D30可减轻Aβ原纤维诱导的认知障碍,促进外源Aβ原纤维从海马和皮质的清除,并抑制氧化应激和小胶质细胞和星形胶质细胞的激活。D30还能逆转Aβ原纤维诱导的树突棘和突触蛋白的丢失。值得注意的是,实验证明,侧脑室注射外源性Aβ原纤维可明显上调大脑中半乳糖凝集素3的水平,且这种变化可被D30阻断。鉴于D30在促进Aβ清除、抗神经炎症、突触保护和认知改善的作用,因此认为D30可成为治疗阿尔茨海默病的潜在药物。

https://orcid.org/0000-0002-7229-2810 (Xueyan Liu); https://orcid.org/0000-0002-7914-1054 (Wei Wu); 

https://orcid.org/0000-0002-9268-9217 (Chenlu Li); https://orcid.org/0000-0001-5851-3261 (Zu-Cheng Ye);

https://orcid.org/0000-0002-0377-8913 (Daijun Zha)

关键词: 阿尔茨海默病, 淀粉样蛋白β, 半乳糖凝集素3, 神经炎症, 小胶质细胞, 星形胶质细胞, 神经元, D30, 认知障碍, 树突棘

Abstract: Previous studies have shown that the compound (E)-2-(3,4-dihydroxystyryl)-3-hydroxy-4H-pyran-4-one (D30), a pyromeconic acid derivative, possesses antioxidant and anti-inflammatory properties, inhibits amyloid-β aggregation, and alleviates scopolamine-induced cognitive impairment, similar to the phase III clinical drug resveratrol. In this study, we established a mouse model of Alzheimer’s disease via intracerebroventricular injection of fibrillar amyloid-β to investigate the effect of D30 on fibrillar amyloid-β–induced neuropathology. Our results showed that D30 alleviated fibrillar amyloid-β–induced cognitive impairment, promoted fibrillar amyloid-β clearance from the hippocampus and cortex, suppressed oxidative stress, and inhibited activation of microglia and astrocytes. D30 also reversed the fibrillar amyloid-β–induced loss of dendritic spines and synaptic protein expression. Notably, we demonstrated that exogenous fibrillar amyloid-β introduced by intracerebroventricular injection greatly increased galectin-3 expression levels in the brain, and this increase was blocked by D30. Considering the role of D30 in clearing amyloid-β, inhibiting neuroinflammation, protecting synapses, and improving cognition, this study highlights the potential of galectin-3 as a promising treatment target for patients with Alzheimer’s disease.

Key words: Alzheimer’s disease, amyloid-β, astrocyte, cognitive impairment, D30, dendritic spines, galectin-3, microglia, neuroinflammation, neuron