Department of Molecular and Cellular Biology, University of California at Berkeley, Berkeley, CA 94720, USA.
Department of Anatomy, University of California San Francisco, San Francisco, CA 94143, USA; Department of Pathology, University of California San Francisco, San Francisco, CA 94143, USA; Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA 94158, USA.
Trends Cancer. 2023 Oct;9(10):817-827. doi: 10.1016/j.trecan.2023.06.005. Epub 2023 Jul 1.
The microphthalmia/transcription factor E (MiT/TFE) transcription factors (TFs; TFEB, TFE3, MITF, and TFEC) play a central role in cellular catabolism and quality control and are subject to extensive layers of regulation that influence their localization, stability, and activity. Recent studies have highlighted a broader role for these TFs in driving diverse stress-adaptation pathways, which manifest in a context- and tissue-dependent manner. Several human cancers upregulate the MiT/TFE factors to survive extreme fluctuations in nutrients, energy, and pharmacological challenges. Emerging data suggest that reduced activity of the MiT/TFE factors can also promote tumorigenesis. Here, we outline recent findings relating to novel mechanisms of regulation and activity of MiT/TFE proteins across some of the most aggressive human cancers.
小眼畸形转录因子 E(MiT/TFE)转录因子(TFs;TFEB、TFE3、MITF 和 TFEC)在细胞分解代谢和质量控制中发挥核心作用,并且受到广泛的调控层的影响,这些调控层影响它们的定位、稳定性和活性。最近的研究强调了这些 TFs 在驱动多种应激适应途径中的更广泛作用,这些途径以组织和细胞环境依赖的方式表现出来。几种人类癌症上调 MiT/TFE 因子以在营养、能量和药物挑战的极端波动中存活。新出现的数据表明,MiT/TFE 因子活性降低也可促进肿瘤发生。在这里,我们概述了与一些最具侵袭性的人类癌症中 MiT/TFE 蛋白的新调节和活性机制相关的最新发现。