马塞利尼南通过PPARγ-依赖的途径减轻缺氧神经元的氧化和炎症损伤:对阿尔茨海默病的含义
Xinge Chu1, Zhengyu Qi2, Sha Li2
1Department of Anatomy, Histology and Embryology, Yanbian University Medical College, Yanji, 133002, China; Jilin Key Laboratory for Immune and Targeting Research on Common Allergic Diseases, Key Laboratory of Anti-Aging and Translational Medicine of Jilin Province, Yanbian University, Yanji, 133002, China; Department of Pharmacology, School of Medicine, Ningbo University, Ningbo, 315211, China.
European journal of pharmacology
|December 19, 2025
概括
马塞利尼南通过激活过氧酶增殖器激活受体-γ (PPARγ),增强抗氧化防御和减少炎症来防止缺氧诱导的神经元损伤. 这为阿尔茨海默氏症提供了潜在的治疗益处.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 生物化学 生化学
背景情况:
- 低氧引起的氧化应激是阿尔茨海默病 (AD) 神经元损失的关键因素.
- 马赛利尼南是一种天然的林格南,已知具有抗氧化和抗炎性质,但其神经保护机制尚未完全理解.
研究的目的:
- 阐明分子点和信号通路,通过这些途径,macelignan保护神经元免受缺氧诱导的氧化损伤.
- 为了研究马塞利格南对低氧相关的神经退行性疾病的治疗潜力.
主要方法:
- 使用HT22细胞和CoCl2或激活的BV2微质细胞进行神经元损伤的体外建模.
- 在Wistar大鼠中通过双边常见动脉阻塞 (BCCAo) 进行缺氧损伤的体内建模.
- 分子对接以确定潜在的点,随后进行功能测试以确认马塞利格南的作用机制,包括PPARγ激动性及其对Nrf2/HO-1和NF-κB通路的下游影响.
主要成果:
- 马塞利尼南显著提高了神经元活力,减少了亡,降低了活性氧物种 (ROS) 水平.
- 分子对接确定了氧酶增殖器激活受体-γ (PPARγ) 作为潜在的标;功能测定证实了 macelignan 作为 PPARγ 激动剂.
- 马塞利尼南激活了Nrf2/HO-1抗氧化途径,并抑制了NF-κB介导的炎症,而PPARγ抗剂则阻断了这种作用.
- 在大鼠模型中,Macelignan调节了微质极化,减少了促炎性细胞因子,减轻了二次神经元损伤,并改善了认知功能.
结论:
- 马塞利尼南通过向PPARγ来缓解缺氧诱导的神经元损伤.
- 这导致细胞抗氧化防御的协调激活和抑制神经炎症.
- 马塞利尼南对包括缺氧相关的神经元损伤的疾病,如阿尔茨海默病,具有显著的治疗潜力.
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