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通过cirMETTL9降低ILF3:对创伤性脑损伤引起的神经炎症的影响

Lulu Sun¹, Hao Huang², Yonglin Hu³

¹Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China.

Experimental neurology

|October 8, 2025

概括

循环RNA METTL9 (circMETTL9) 通过降低介素增强剂结合因子3 (ILF3) 来加剧创伤性脑损伤 (TBI) 后的神经炎症. 恢复ILF3水平为TBI恢复提供了一个潜在的治疗策略.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
免疫学免疫学免疫学

背景情况:

神经炎症是创伤性脑损伤 (TBI) 病理学的关键因素.
循环RNA METTL9 (circMETTL9) 已经涉及到调节TBI后的神经炎症.
介素增强剂结合因子3 (ILF3) 是一种潜在的circMETTL9.9结合蛋白.

研究的目的:

阐明ILF3在TBI后的神经炎症和神经功能障碍中的作用.
在TBI的背景下调查ILF3影响的调节途径.
确定针对ILF3进行TBI干预的治疗潜力.

主要方法:

在TBI后受伤的大脑皮层和星球细胞中ILF3表达的分析.
过度表达ILF3,以评估其对神经功能和神经元亡的影响.
使用分子结合试验,研究circMETTL9和ILF3之间的相互作用.
评估下游信号通路,包括p38 MAPK,以及星球细胞中的化学激素水平 (CCL2,CCL3,CXCL1,CXCL3).

主要成果:

在TBI后,ILF3表达在受伤的大脑组织和星球细胞中显著降低.
过度表达ILF3表现出神经保护作用,改善神经功能和减少神经元亡.
circMETTL9直接与ILF3结合,导致ILF3水平降低.
降低的ILF3水平激活了p38 MAPK通路,并增加了星球细胞中的炎症性化学激素表达.

结论:

ILF3在缓解神经炎症和创伤后的神经缺陷方面发挥着至关重要的作用.
环METTL9/ILF3相互作用代表了TBI诱导的神经炎症的新型调节机制.
ILF3成为治疗TBI的潜在治疗点.

关键词:

星球细胞是星球细胞.在CircMETTL9中使用.介质蛋白增强剂结合因子3的结合因子3 神经炎症是一种神经炎症.创伤性脑损伤是一种创伤性脑损伤.

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