在APP/PS1小鼠中,寡曼酸激活了肠内分泌 - 阴道 afferent通路
Hua-Shan Gong1,2, Jing-Pei Pan3,4, Fei Guo3
1Songjiang Research Institute, Shanghai Songjiang District Central Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201600, China.
Acta pharmacologica Sinica
|May 3, 2024
概括
寡曼酸 (GV-971) 通过激活肠内分泌细胞和阴道 afferent神经来增强肠-大脑通信,改善阿尔茨海默氏症模型中的认知功能. 这种药物可以通过肠道途径调节大脑功能.
科学领域:
- 神经科学是一个神经科学.
- 胃肠病学 胃肠病学
- 药理学 药理学是指药理学的学科.
背景情况:
- 肠内分泌细胞 (EECs) 和阴道 afferent神经元形成肠道感官单元,影响大脑功能.
- 寡曼酸 (GV-971) 在阿尔茨海默氏症 (AD) 治疗方面表现有前途,改善认知缺陷.
研究的目的:
- 调查GV-971的治疗效果是否涉及激活EECs和 afferent通路.
- 阐明GV-971调节肠-大脑信号传递的机制.
主要方法:
- 检查了GV-971对EEC (RIN-14B细胞系) 的振荡和神经活动的作用.
- 给野生型和APP/PS1小鼠服用GV-971,测量血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清中血清.
- 使用甜味受体抑制剂 (乳糖醇) 和TRPA1通道阻断剂 (HC-030031) 来评估通路的参与.
主要成果:
- 通过TRPA1-介导的入口,GV-971在EEC中依赖度的增强振荡.
- 在小鼠中,GV-971增加了自发和扩张诱导的阴道 afferent神经活动.
- 给予GV-971提高了血清中血清激素和CCK水平,改善了APP/PS1小鼠的认知缺陷,这些效应被乳醇和HC-030031阻断.
结论:
- GV-971激活甜味受体和TRPA1通道,增强EEC的进入和随后的CCK/血清素释放.
- 这导致阴道 afferent活动增加,这表明GV-971通过EECs-阴道 afferent通路调节认知功能.
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