N6-甲基腺苷甲基化在缺血性脑卒中小胶质细胞极化与神经炎症中的双重调控作用研究进展

The dual regulatory roles of N6 -methyladenosine methylation in microglial polarization and neuroinflammation in ischemic stroke

  • 摘要: N6-甲基腺苷(m6A)甲基化酶包括“Writers”“Erasers”“Readers”蛋白,通过调控小胶质细胞的促炎(M1)/抗炎(M2)型极化状态、细胞因子分泌及神经修复因子表达,影响卒中的免疫反应和神经修复过程。m6A甲基化在急性期通过促进促炎因子表达和M1型极化,加剧炎症反应,在恢复期则通过增加抗炎因子表达和M2型极化,促进组织修复与神经再生。本文综述m6A甲基化相关酶的分子机制及其在小胶质细胞功能调控中的双向作用,并评估m6A甲基化作为卒中治疗潜在靶点的可行性,旨在为缺血性脑卒中的免疫调控与神经修复提供新的研究视角和治疗策略。

     

    Abstract: N6-methyladenosine (m6A) methyltransferases encompass "Writers" "Erasers" and "Readers" proteins, which influence the immune response and neurorepair process in stroke by modulating the M1/M2 polarization state of microglia, cytokine secretion, and neurorepair factor expression. m6A methylation exacerbates inflammatory responses in the acute phase by promoting pro-inflammatory factor expression and M1 polarization, while in the recovery phase, it facilitates tissue repair and neuroregeneration by increasing anti-inflammatory factor expression and M2 polarization. This paper reviewed the molecular mechanisms of m6A methylation-related enzymes and their bidirectional roles in the functional regulation of microglia, and evaluated the feasibility of m6A methylation as a potential therapeutic target for stroke, aiming to provide new research perspectives and therapeutic strategies for immune regulation and neurorepair in ischemic stroke.

     

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