诱导细胞自主增殖和肝细胞的代谢重编程
Marina Serra1, Alfredo Smiriglia2, Cristina Migliore3,4
1Department of Biomedical Sciences, University of Cagliari, Monserrato, Italy.
Cell death & disease
|November 10, 2025
概括
酸 (LN) 直接导致类似癌症的代谢变化和肝细胞的增殖. 这种重新编程是由核因子红色素衍生的2样2 (NRF2) 途径驱动的,突出显示了它在细胞代谢中的作用.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 癌症新陈代谢 癌症新陈代谢
- 细胞信号传输 细胞信号传输
背景情况:
- 代谢重编程是癌症的一个标志.
- 酸 (LN) 在体内诱导大鼠肝细胞的代谢变化.
- 肝细胞中LN诱导的代谢变化的确切机制尚不清楚.
研究的目的:
- 为了研究LN对肝细胞的细胞自主作用.
- 为了确定LN是否直接诱导癌症类代谢特征.
- 为了阐明核因子红色素衍生的2-like 2 (NRF2) 途径在LN诱导效应中的作用.
主要方法:
- 使用了不致死的非瘤原生老鼠 (RNT) 和人类 (THLE-2) 肝细胞.
- 用LN处理的肝细胞和分析的代谢途径 (糖解,PPP,OXPHOS).
- 评估了凯尔奇样ECH相关蛋白1 (KEAP1) -NRF2通路的参与,并进行了NRF2沉默.
主要成果:
- 线治疗诱导了类似癌症的代谢特征:糖解的增加,活化酸通路 (PPP) 和减少氧化酸化 (OXPHOS).
- LN增加了NRF2目标,NRF2激活与肝细胞增殖相关.
- 抑制NRF2消除了LN诱导的代谢重编程,而三甲状腺素 (T3) 并没有触发这些变化.
结论:
- 直接驱动肝细胞增殖和新陈代谢重编程,独立于微环境信号.
- KEAP1-NRF2通路是这些LN诱导的关键驱动因素,在非瘤源肝细胞中发生类似癌症的代谢转变.
- 激活NRF2对于对LN的反应进行代谢重编程至关重要.
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