MYG1通过核-线粒体协作驱动糖解和结直肠癌的发展
Jianxiong Chen1,2, Shiyu Duan1,2, Yulu Wang1,2
1Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Nature communications
|June 11, 2024
概括
黑色素细胞增殖基因1 (MYG1) 通过促进糖解和抑制亡,促进结直肠癌 (CRC) 的进展. 准MYG1为CRC诊断和治疗提供了一个潜在的战略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 代谢过程中的代谢.
背景情况:
- 代谢重塑对于瘤在压力下生存至关重要.
- 在结直肠癌 (CRC) 中代谢重塑的分子机制尚未完全理解.
- 黑色素细胞增殖基因1 (MYG1),一种RNA外核酶,影响线粒体功能.
研究的目的:
- 研究MYG1在结直肠癌 (CRC) 进展中的作用和分子机制.
- 确定MYG1表达是否与CRC进展和患者预后相关.
- 探索MYG1作为CRC的潜在治疗点.
主要方法:
- 在CRC组织中MYG1表达的分析和与临床数据的相关性.
- 研究MYG1在CRC细胞的糖解和氧化化 (OXPHOS) 中的作用.
- 阐明MYG1涉及HSP90/GSK3β复合体和PKM2酸化的分子相互作用.
- 在CRC中检查MYC和MYG1之间的反循环.
主要成果:
- 在CRC进展过程中,MYG1的表达是上调调的,并且独立于其外核酶活性,促进糖解和CRC进展.
- 核MYG1通过HSP90/GSK3β增强PKM2的稳定性,导致MYC介导的糖解.
- 线粒体MYG1抑制了OXPHOS和亡,而MYC则对MYG1进行上调,从而创建了一个积极的反循环.
- 在KRAS突变的CRC患者中,高MYG1表达与高糖解和不良预后相关.
结论:
- MYG1在CRC代谢重编程中发挥着重要作用,促进糖解和抑制亡.
- 在MYG1-HSP90/GSK3β-PKM2-MYC轴驱动CRC的进展.
- MYG1是KRAS突变CRC的潜在生物标志物,也是一个有前途的治疗标.
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