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Updated: Jun 17, 2025

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Published on: December 5, 2016

通过METTL14介导的G6PD的m6AmRNA修饰促进了肺腺癌

Weidong Wu^1,2,3,4, Mengling Li^5,6, Yingxiao Wu^5,6

¹Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, Fujian, China.

Cell death discovery

|August 13, 2024

概括

通过m6A修饰和IGF2BP2.2.通过稳定葡萄糖-6酸脱酶 (G6PD) mRNA,METTL14促进肺腺癌 (LUAD). 针对这种途径为LUAD患者的抗代谢治疗提供了潜在的潜力.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
生物化学生物化学

背景情况:

METTL14是一种RNA甲基转移酶,对m6A修饰至关重要.
METTL14在调节肺腺癌 (LUAD) 进展中的葡萄糖-6-酸脱酶 (G6PD) 的作用尚不清楚.
在LUAD组织和细胞中观察到升高的m6A水平和METTL14表达.

研究的目的:

阐明METTL14在LUAD中调节G6PD的机制.
研究METTL14对LUAD细胞增殖,迁移,入侵和转移的影响.
为了确定LUAD治疗的潜在治疗点.

主要方法:

对m6A和METTL14水平进行定量测量和免疫组织化学 (IHC).
在体外研究涉及METTL14的淘汰和LUAD细胞系的过度表达.
在裸体小鼠体内异种移植模型.
RNA测序和m6A特异性免疫沉降测序 (MeRIP-seq).

主要成果:

在LUAD组织和细胞中,METTL14表达和m6A水平显著更高.
METTL14 Knockdown 抑制了 LUAD 细胞的增殖,迁移,入侵,并在体内减少瘤生长和转移.
METTL14倒置降低了LUAD细胞中的糖解活性.
通过m6A修饰,METTL14通过IGF2BP2增强G6PDmRNA稳定性,促进LUAD的进展.
较高的G6PD水平与LUAD患者的整体存活率较差相关.

结论:

通过一个m6A-IGF2BP2依赖机制,METTL14通过转录后升高调节G6PD表达,稳定G6PDmRNA.
这个METTL14-G6PD轴驱动着LUAD的生长和转移.
G6PD和METTL14通路代表了LUAD抗代谢治疗的潜在诊断生物标志物和治疗点.

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