Tmem110调节TRPML1的构造,以维持内分泌体平衡,并防止线粒体DNA泄漏和病态的自我DNA处理
Zunyong Feng1, Yuanbo Pan2, Jing Zhou3
1State Key Laboratory of Macromolecular Drugs and Large-scale Preparation, School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China. fengzy@wmu.edu.cn.
Nature communications
|January 15, 2026
概括
在创伤性脑损伤后,细胞内膜网膜调节器TMEM110对于清除受损的线粒体至关重要. 它的缺失会通过破坏 lysosomal 功能来恶化器官功能障碍和自身免疫反应.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
背景情况:
- 细胞器官清除机制,特别是伤害后线粒体的清除机制,尚未完全理解.
- 创伤性脑损伤可能导致多个器官功能障碍,涉及复杂的细胞反应.
研究的目的:
- 调查内网膜跨膜调节器TMEM110在器官处理和疾病严重性中的作用.
- 阐明 TMEM110 影响 lysosomal 功能和免疫反应的分子机制.
主要方法:
- 利用遗传模型在体内研究TMEM110的功能.
- 研究了TMEM110与 lysosomal通道 (TRPML1) 和信号的相互作用.
- 研究了TMEM110,STING和DNA传感途径之间的相互作用.
主要成果:
- 失去TMEM110会影响循环线粒体的清除,加剧自身免疫组织损伤和死亡率.
- TMEM110通过控制TRPML1和防止过载和DNA泄漏来调节 lysosomal 功能.
- TMEM110表达受到STING的负面调节,具有破坏DNA处置和干扰素活性的特定突变.
结论:
- TMEM110是经过创伤性脑损伤后的有机细胞平衡和自身免疫反应的关键调节者.
- 在细胞质DNA传感 (STING) 和器官管理 (TMEM110/溶解体) 之间存在反循环.
- 这种途径的失调会导致多个器官功能障碍,并突出显示潜在的治疗点.
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