诺奇2指导aTreg细胞命运向免疫调节或炎症性热死
Yue-Long Qiao1, Shan Xu1, You Zou1
1Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|January 12, 2026
概括
诺奇2维持激活调节性T细胞 (aTregs) 的免疫抑制功能. 失去Notch2会在aTregs中触发热,使过敏性鼻炎 (AR) 炎症恶化.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 分子机制的分子机制
背景情况:
- 活性调节性T细胞 (aTregs) 对于抑制炎症和组织修复至关重要.
- 诺奇2在aTreg功能和过敏性鼻炎 (AR) 发病过程中的特定作用尚未完全理解.
研究的目的:
- 研究Notch2调节aTreg功能的分子机制.
- 确定Notch2在过敏性鼻炎 (AR) 的发展中的作用.
主要方法:
- 在 aTregs 中对 Notch2 进行有针对性的淘汰.
- 对Foxo1表达,ASC酸化和热致死标记物的分析 (GSDMD-N).
- 研究了NICD2和RREB1.1.之间的蛋白质-蛋白质相互作用.
- 在AR的小鼠模型中采用Notch2+ aTregs的转移.
主要成果:
- 在 aTregs 中的 Notch2 淘汰导致减少 Foxo1,增加 p-ASC,并通过 GSDMD-N 导致 pyroptosis.
- 与RREB1的Notch2细胞内域 (NICD2) 相互作用增强了Foxo1的转录活性.
- 在AR小鼠中,采用Notch2+ aTregs转移抑制了Th2炎症.
结论:
- 诺奇2对于维持Treg免疫调节能力至关重要.
- 诺奇2可以防止aTreg热,从而减轻AR.
- 诺奇2信号为AR提供了一个潜在的治疗点.
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