在阿尔茨海默病中对细胞类型特定的主代谢调节者的系统性表征
Yunguang Qiu1,2, Yuan Hou1,2, Liam Wetzel3
1Cleveland Clinic Genome Center, Cleveland Clinic Research, Cleveland Clinic, Cleveland, OH 44195, USA.
Research square
|September 2, 2025
概括
阿尔茨海默病会改变大脑细胞的新陈代谢,神经元会减少能量使用,而小质细胞会增加能量使用. 一个新的算法scFUMES可以识别针对性阿尔茨海默氏症治疗的关键代谢调节剂.
科学领域:
- 神经科学
- 代谢学
- 系统生物学
背景情况:
- 阿尔茨海默病 (AD) 呈现出代谢异质性,但细胞类型特定的代谢动态和调节网络尚不清楚.
- 在AD中神经元代谢下降,而微质代谢增加,与神经炎症有关.
研究的目的:
- 在阿尔茨海默病中确定特定于脑细胞类型的主代谢调节者.
- 阐明AD代谢变化的代谢物传感器网络基础.
主要方法:
- 开发了scFUMES (单细胞功能代谢物传感器),集成单细胞RNA测序,相互作用学,基因组学,转录学和代谢学.
- 在阿尔茨海默氏症易受影响的区域 (中圈,背侧前额皮层) 应用 scFUMES.
主要成果:
- scFUMES发现了数百种与AD相关的代谢调节剂,其中神经元和小质细胞的相互作用最多.
- 在AD严重程度,性别和APOE基因型中确定基因信息的主调节剂 (例如,微中的PPARD糖醇).
- 验证了两个预测的相互作用 (神经棕酸/FABP3,英多尔-3- 酸/KAT1),减少了AD中的病态tau物种.
结论:
- 在阿尔茨海默病中,scFUMES有效地识别了细胞类型特异性的主要代谢调节剂.
- 提供了关于AD和其他神经退行性疾病的细胞代谢异质性和潜在的代谢向治疗策略的见解.
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