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在ACC神经元中PCIF1-介导的Am修饰参与了炎症性疼痛和焦虑

Ya Liu¹, Yue Huang², Keqing Xue²

¹Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesiology and Brain Science, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China; Northern Jiangsu People's Hospital, The Yangzhou Clinical Medical College of Xuzhou Medical University, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou 225001, China.

|February 19, 2026

概括

持续的炎症降低PCIF1,影响大脑中的AmRNA修饰. 这导致GAP43的增加,导致炎症性疼痛和焦虑,通过准GAP43.3,这一过程是可逆的.

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
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

N6,2'-O-dimethyladenosine (m⁶Am) 是一种关键的RNA修饰,可以调节基因表达.
在疼痛和并发性焦虑中m⁶Am的作用仍然在很大程度上未被探索.
化CTD相互作用因子1 (PCIF1) 是负责m6Am修饰的甲基转移酶.

研究的目的:

研究m6Am和PCIF1在炎症性疼痛和焦虑中的作用.
阐明将外周炎症与中枢神经系统变化联系起来的分子机制.
确定疼痛和焦虑障碍的潜在治疗点.

主要方法:

利用持续的外周炎症的小鼠模型.
在前带皮层 (ACC) 中研究了PCIF1水平和GLI2结合.
使用基因淘汰/条件删除Pcif1和淘汰GAP43.
评估了Gap43 mRNA,GAP43表达和长期前强化 (LTP) 和的m⁶Am水平.
评估炎症性疼痛和类似焦虑的行为.

主要成果:

持续的外周炎症通过减少GLI2与Pcif1促进体的结合,在小鼠ACC中降低了PCIF1水平.
在ACC神经元中删除Pcif1减少了Gap43mRNAm6Am,增加了GAP43表达和LTP前过和.
这种分子级联导致炎症性疼痛和并发性焦虑类行为.
击败GAP43逆转了LTP前过和,缓解疼痛和焦虑.

结论:

GLI2控制的PCIF1调节炎症性疼痛和并发性焦虑症.
该机制涉及准Gap43mRNAm6在ACC中的Am修饰.
这项研究揭示了一种新的表观遗传途径,将炎症与疼痛和焦虑联系起来.

关键词:

在CP:神经科学.在GAP43中,GAP43是GAP43中的一个.一个PCIF1的PCIF1.前带状皮层前带状皮层炎症性疼痛和伴随性焦虑症的症状.m(6) Am 的修改.

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