FOXO1增强G6PD的表达,促进癌细胞的抗氧化能力
Xianhong Zhang1,2, Jie Zhang1,2, Mengmeng Wei1,2
1School of Life Sciences, Ningxia University, Yinchuan 750021, China.
Journal of molecular cell biology
|October 22, 2025
概括
转录因子FOXO1通过提高抗氧化能力和增殖来增强癌细胞存活率. 它通过调节葡萄糖-6-酸盐脱酶 (G6PD),这对细胞防御和生长至关重要,来实现这一目标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 代谢适应性对于癌细胞生存至关重要.
- 转录因子FOXO1在癌细胞增殖和氧化应激下生存中的作用尚不清楚.
研究的目的:
- 阐明FOXO1在高反应性氧物种 (ROS) 条件下调节癌细胞增殖和存活的机制.
- 研究FOXO1在控制恶性瘤细胞中抗氧化能力和增殖中的作用.
主要方法:
- 研究了FOXO1对癌细胞抗氧化能力和扩散的影响.
- 分析了由FOXO1.1调节的葡萄糖-6-酸盐脱酶 (G6PD) 的表达.
- 评估G6PD诱导在FOXO1缺乏细胞对瘤生长和ROS水平的影响.
主要成果:
- FOXO1显著增强癌细胞的抗氧化能力和增殖.
- 福克索1上调调节葡萄糖-6-酸盐脱酶 (G6PD) 表达,这是酸通路中的关键酶.
- 通过FOXO1对G6PD的上调促进了NADPH和利-5-酸盐的合成,促进了抗氧化防御和增殖.
- 恢复FOXO1缺乏细胞中的G6PD表达,抵消了瘤生长抑制,并降低了ROS水平.
结论:
- 在调节G6PD表达方面,FOXO1起着至关重要的作用.
- 通过G6PD增加抗氧化能力和扩散,FOXO1提高了癌细胞的存活率.
- 准FOXO1-G6PD轴可能是癌症治疗的潜在策略.
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