在炎症性微质细胞中,甲素B的过度表达和溶酶体泄漏会通过触发线粒体功能障碍和热灭菌来促进嗅觉功能障碍中的神经炎症
Huiqin Zhou1, Li Wang2, Yuanyuan Yang2
1Department of Otolaryngology, Research Units of New Technologies of Endoscopic Surgery in Skull Base Tumor (2018RU003), Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China; ENT Institute and Department of Otorhinolaryngology, Eye & ENT Hospital, Fudan University, Shanghai 200031, China.
Brain, behavior, and immunity
|November 21, 2025
概括
嗅觉功能障碍涉及特定的微质状态. 向甲素B (CTSB) 降低神经炎症,有助于嗅觉恢复.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
背景情况:
- 嗅觉功能障碍 (OD) 是常见的,与年龄有关,是神经退行性疾病的早期迹象.
- 嗅球 (OB) 中的微细胞对损伤做出反应,但它们在OD中的作用尚不清楚.
- 了解微质动态对于治疗OD至关重要.
研究的目的:
- 调查微质状态动态和嗅觉损伤中的途径.
- 为了确定OD中微质炎症的关键调节者.
- 探索药物过量使用的治疗目标.
主要方法:
- 伤害后小鼠OBs的单细胞RNA测序.
- 在体外对BV2和初级微质细胞的研究.
- 在OD小鼠模型中对Cathepsin B (CTSB) 的药理抑制.
主要成果:
- 确定了三种微质状态:炎症性,负调节性和平静性.
- 甲素B (CTSB) 驱动炎症性微质活动和神经炎症.
- 在OD小鼠中,CTSB抑制改善了嗅觉功能并减少了微质炎症.
结论:
- 与炎症相关的微质子群富含OD.
- 通过神经炎症,CTSB在OD病原发生中起着有害的作用.
- 针对CTSB提供了对OD的潜在治疗策略.
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