在间歇性缺氧中,ADAM17抑制保护认知:TREM2的作用
Jiahuan Xu1, Hongyu Jin1, Xiaomeng Li1
1Institute of Respiratory and Critical Care Medicine, The First Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China.
Nature and science of sleep
|September 2, 2025
概括
通过减少神经炎症,激发受体在骨髓细胞2 (TREM2) 上表达,防止阻塞性睡眠呼吸暂停 (OSA) 的认知障碍. 抑制ADAM17恢复TREM2,为OSA相关的认知缺陷提供一种潜在的治疗策略.
科学领域:
- 神经科学
- 免疫学
- 睡眠医学
背景情况:
- 阻塞性睡眠呼吸暂停 (OSA) 与认知障碍有关.
- 间歇性缺氧 (IH) 是OSA的一个关键特征.
- TREM2在OSA相关认知功能障碍中的作用尚不清楚.
研究的目的:
- 研究TREM2对OSA认知障碍的影响.
- 阐明TREM2在OSA相关认知障碍中的调节机制.
主要方法:
- 已建立的IH动物和BV2细胞模型.
- 用于对TREM2的抑制和过度表达.
- 抑制了TAPI-1的ADAM17活性.
- 使用莫里斯水迷宫和分子机制通过PCR,西式涂抹和ELISA评估认知功能.
主要成果:
- IH降低了TREM2水平,并促进了神经炎症 (IL- 1β,TNF- α,CD86) 和神经元损伤 (p- Tau).
- TREM2过度表达减轻了IH引起的损伤,而倒则加剧了损伤.
- IH增加了ADAM17的活性和TREM2的分泌;TAPI- 1治疗逆转了这些影响.
- 抑制ADAM17改善了认知功能并减少了神经炎症.
结论:
- 通过促进M2微质极化,TREM2可以防止IH诱导的神经炎症和神经损伤.
- IH增强了ADAM17的活性,导致TREM2的降解.
- 抑制ADAM17以恢复TREM2是治疗OSA相关认知障碍的一个有希望的方法.
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