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通过RBM3介导的KLF6的m6A修饰促进了性结肠炎中ACSL4驱动的铁化

Xingchuan Leng¹, Ailing Wang¹, Yang Wu¹

¹Department of Anorectal Surgery, The People's Hospital of Jianyang City, Jianyang City, Chengdu, Sichuan Province, China.

Immunology and cell biology

|February 11, 2026

概括

通过m6A修饰稳定KLF6mRNA,通过ACSL4激活促进ferroptosis,RBM3蛋白增强性结肠炎 (UC). 准RBM3和KLF6可能会提供新的UC疗法.

科学领域:

胃肠病学胃肠病学
分子生物学分子生物学
细胞生物学细胞生物学

背景情况:

性结肠炎 (UC) 是一种慢性炎症性肠病.
没有完全理解RNA结合基因蛋白3 (RBM3) 的作用及其对UC病变发生过程中的mRNA稳定性的影响.
铁亡是一种受调节的细胞死亡途径,与炎症性肠道疾病有关.

研究的目的:

研究RBM3-介导的m6A修饰如何影响KLF6mRNA稳定性并促进UC的小鼠模型中的铁亡的机制.
探索ACSL4激活在UC中RBM3诱导的铁亡中的作用.
评估RBM3和KLF6作为UC的潜在治疗点.

主要方法:

已建立的UC小鼠和细胞模型使用硫酸盐 (DSS).
通过H&E染色,ELISA和免疫组织化学评估病理变化,炎症性细胞因子和蛋白质表达 (ZO-1,Occludin,RBM3,KLF6,ACSL4).
量化铁灭症指标,细胞活力 (CCK-8) 和基因/蛋白质表达 (RT-qPCR,西部斑);利用生物信息学,RIP试验,MeRIP-qPCR 和阿诺米辛D试验来确认RBM3-KLF6相互作用,m6A修饰和mRNA稳定性.

主要成果:

在UC小鼠模型中,RBM3被上调.
通过RBM3的敲击,降低了铁亡和减轻了UC组织学损伤.
通过m6A修饰,RBM3稳定了KLF6mRNA,促进了KLF6介导的ACSL4转录和铁. Knockdown 的 RBM3 或 KLF6 抑制了铁亡,而 KLF6/ACSL4 的过度表达部分逆转了这些效应.

结论:

通过增强m6A介导的KLF6mRNA稳定性和激活ACSL4驱动的铁亡,RBM3促进UC的进展.
RBM3和KLF6代表了性结肠炎的潜在治疗标.

关键词:

在 ACSL4 中使用.在KLF6KLF6 这是一个RBM3RBM3RBM3 铁性化 (ferroptosis) 是一种 m6A 修改的修改性结肠炎是一种

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