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饥饿诱导的HBP代谢重编程和STAM2 O-GlcNAcylation促进了膀癌的转移
Zhenwei Feng1,2, Yuhua Mei1,2, Haonan Chen1
1Department of Urology, The First Affiliated Hospital of Chongqing Medical University, No.1 Youyi Road, Yuan Jiagang, Yuzhong District, Chongqing, 400010, China.
Scientific reports
|March 13, 2025
概括
谷氨胺-果糖-6-酸氨基转移酶1 (GFAT1) 通过增加STAM2的O-GlcNAcylation来驱动膀癌转移. 抑制GFAT1和O-GlcNAcylation为膀癌进展提供了一个潜在的治疗策略.
科学领域:
- 在瘤学瘤学.
- 代谢途径 代谢途径
- 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:
- 代谢重编程和表观遗传改变是瘤进展和转移的关键驱动因素.
- 膀癌 (BCa) 淋巴和远程转移的机制尚未完全理解.
研究的目的:
- 研究代谢和表观遗传因素在膀癌转移中的作用.
- 为了确定BCa进展的新型治疗点.
主要方法:
- 研究了BCa.中的谷氨酸果糖-6-酸盐氨基转移酶1 (GFAT1) 的表达和功能.
- 分析了信号传导适配分子2 (STAM2) 的O-GlcNAcylation及其对转移的影响.
- 研究了抑制GFAT1和O-GlcNAcylation对BCa转移的作用.
- 研究了下游的信号通路,包括JAK2/STAT3和上皮-介质酶过渡.
主要成果:
- 在缺乏营养的微环境中,GFAT1的升级调节,促进STAM2的O-GlcNAcylation,并促进BCa转移.
- 抑制GFAT1和O-GlcNAcylation显著影响STAM2诱导的转移.
- 在375血清中对STAM2的O-GlcNAcylation通过防止蛋白质酶体降解和无处不在化来提高蛋白质的稳定性.
- STAM2 O-GlcNAcylation激活了JAK2/STAT3通路,促进了上皮层-介质酶过渡.
结论:
- 通过GFAT1介导的STAM2O-GlcNAcylation是一种新的机制,将新陈代谢和表观遗传与膀癌转移联系起来.
- 向GFAT1和STAM2的O-GlcNAcylation为BCa进展和转移提供了一个有希望的治疗策略.
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