mTORC1型
生物
转录因子
溶酶体
信号转导
TFEB
细胞生物学
雷帕霉素的作用靶点
PI3K/AKT/mTOR通路
非规范的
机制(生物学)
遗传学
生物化学
基因
酶
哲学
认识论
作者
Gennaro Napolitano,Chiara Di Malta,Andrea Ballabio
标识
DOI:10.1016/j.tcb.2022.04.012
摘要
The mechanistic target of rapamycin complex 1 (mTORC1) signaling hub integrates multiple environmental cues to modulate cell growth and metabolism. Over the past decade considerable knowledge has been gained on the mechanisms modulating mTORC1 lysosomal recruitment and activation. However, whether and how mTORC1 is able to elicit selective responses to diverse signals has remained elusive until recently. We discuss emerging evidence for a 'non-canonical' mTORC1 signaling pathway that controls the function of microphthalmia/transcription factor E (MiT-TFE) transcription factors, key regulators of cell metabolism. This signaling pathway is mediated by a specific mechanism of substrate recruitment, and responds to stimuli that appear to converge on the lysosomal surface. We discuss the relevance of this pathway in physiological and disease conditions.
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