雌激素受体β通过通过NRF1/PGC-1α微调线粒体平衡来产生神经保护作用
Wei Zhao1, Yue Hou2, Qiwei Zhang3
1Institute of Pharmacology, Shandong First Medical University and Shandong Academy of Medical Sciences, Taian, 271021, China; Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266011, China.
Neurochemistry international
|November 4, 2024
概括
雌激素受体β (ERβ) 激活可以改善认知能力并减少阿尔茨海默氏症.
科学领域:
- 神经科学是一个神经科学.
- 线粒体生物学 线粒体生物学
- 内分泌学 在内分泌学.
背景情况:
- 绝经后雌激素缺乏与线粒体功能障碍和阿尔茨海默病 (AD) 病理学有关.
- 线粒体缺陷在老鼠模型中先于AD相关的病理变化.
研究的目的:
- 研究雌激素受体β (ERβ) 在预防线粒体损伤和保护海马神经元中的作用,在绝经后AD小鼠模型中.
- 为了确定ERβ激活是否可以减轻AD症状.
主要方法:
- 通过对3xTg-AD小鼠进行卵巢切除,创建了一个更年期后AD小鼠模型.
- 给一些小鼠注射了ERβ激动剂diarylpropionitrile,并使用shRNA击败其他小鼠的ERβ.
- 评估认知功能,线粒体生物发生,线粒体,细胞亡,β-粉样蛋白 (Aβ) 沉积和tau病理.
- 在接受Aβ治疗的初级大鼠海马神经元中研究的影响.
主要成果:
- ERβ knockdown 降低了认知能力,减少了线粒体生物发生和线粒体,并增加了神经元亡.
- 在卵巢切除的AD小鼠中,二甲基尼铁治疗改善了认知能力,减少了Aβ沉积和tau病理.
- 在小鼠模型和初级神经元中,ERβ激活增加了线粒体生物发生和线粒体,同时降低了亡.
结论:
- 在绝经后的AD模型中,ERβ激活支持学习,记忆,并减轻AD症状.
- 通过NRF1/PGC-1α,ERβ可以调节神经元线粒体生物发生和线粒体细胞衰变.
- 在绝经后的妇女中,ERβ是阿尔茨海默病的潜在治疗点.
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