在AMPK和mTORC1交叉对话的新发展.
William J Smiles1,2, Ashley J Ovens3, Bruce E Kemp4,5,6
1Metabolic Signalling Laboratory, St. Vincent's Institute of Medical Research, Fitzroy, VIC 3065, Australia.
Essays in biochemistry
|July 12, 2024
概括
细胞能量平衡依赖于AMPK和mTORC1激酶. 这些蛋白质相互作用以控制细胞生长,存活和自,新的发现突显了它们在癌症中的异形特异性作用.
科学领域:
- 细胞生物学 细胞生物学
- 代谢过程中的代谢.
- 生物化学 生化学
背景情况:
- 代谢平衡对于细胞生长和增殖至关重要,由营养感应激酶AMPK和mTORC1.1维持.
- AMPK促进了代谢,而mTORC1促进了代谢,作为细胞能量的对抗调节者.
- 这些激酶通过感知营养的可用性来控制细胞的存活,生长和增殖.
研究的目的:
- 提供AMPK和mTORC1.1.之间的交叉对话的全面概述.
- 讨论AMPK/mTORC1激活在溶酶体中的机制.
- 突出最近关于mTORC1对AMPK异型体的反和它们在癌症中的相关性的发现.
主要方法:
- 从21世纪初到最近的报道,对发现的文献综述.
- 对调节AMPK,mTORC1和ULK1.1的直接和间接酸化事件的分析.
- 对AMPK和mTORC1.1.的溶酶体激活机制的检查.
主要成果:
- 通过酸化,AMPK和mTORC1相互交谈,以调节对方的活性和ULK1,自的启动者.
- 已经确定了AMPK/mTORC1交叉通话和 lysosomal激活通路的不同的机制.
- mTORC1反扩展到特定的AMPK异型,与癌症发病相关.
结论:
- AMPK和mTORC1之间的复杂交谈对于细胞适应能量和营养状态至关重要.
- 溶解体在激活这些关键代谢调节者的过程中起着关键作用.
- 了解mTORC1对异形特异性AMPK的调控,为癌症生物学和潜在的治疗标提供了新的见解.
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