卡斯巴-8表达及其Src依赖的酸化对氨酸380触发NRF2信号激活在质母细胞瘤
Claudia Cirotti1,2, Claudia Di Girolamo3,4, Irene Taddei3,4
1Department of Biology, University of Rome "Tor Vergata", 00133, Rome, Italy. claudia.cirotti@uniroma2.it.
Cell death and differentiation
|October 6, 2025
概括
众所周知的亡酶Caspase-8通过改变癌细胞代谢来意外地推动癌症的进展. 它通过Src,mTORC1和KEAP1信号通路影响NRF2活动和能源生产.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症新陈代谢 癌症新陈代谢
背景情况:
- 酶-8在瘤中被上调,并通过迁移和炎症等非亡性功能促进癌症的进展.
- 它在癌细胞代谢中的作用以前没有被探索过.
研究的目的:
- 研究Caspase-8在调节癌细胞代谢重新连接中的新型作用.
- 阐明将Caspase-8与代谢途径联系起来的分子机制.
主要方法:
- 在质母细胞瘤细胞模型上进行了转录基因,蛋白质基因和蛋白质基因分析.
- 研究了Caspase-8表达和酸化对NRF2活性和线粒体平衡的影响.
- 研究了在激活mTORC1信号传递方面,Caspase-8的Src-依赖酸化的作用.
主要成果:
- Caspase-8被确定为NRF2活动的意外调节器.
- 在Y380中对Caspase-8的Src-依赖酸化维持了mTORC1的激活,促进了癌细胞的能量代谢.
- 这导致p62酸化,KEAP1封存和构成性NRF2信号.
结论:
- 卡斯巴-8在调节癌细胞代谢方面发挥着新的作用.
- 卡斯巴-8桥梁Src,mTORC1和NRF2信号通路,以调节癌症代谢和进展.
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