lysosomal 脂质过氧化有助于通过 lysosomal 膜通透性诱导 ferroptosis
Yuma Saimoto1, Daiki Kusakabe1, Kazushi Morimoto1
1Department of Molecular Pathobiology, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
Nature communications
|April 14, 2025
概括
铁,一种依赖于铁的细胞死亡,是由 lysosomal 脂质过氧化 (LPO) 启动的. 这一过程触发了铁的释放和溶酶体膜通透性 (LMP),这对于克服癌症治疗耐药性至关重要.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
背景情况:
- 铁亡是一种受调节的细胞死亡,由铁依赖性脂质过氧化 (LPO) 驱动.
- 了解LPO和铁利用的精确细胞局部化对于癌症治疗至关重要.
- 溶解体参与铁灭菌的启动仍然是一个活跃的研究领域.
研究的目的:
- 阐明 lysosomal 脂质过氧化 (LPO) 在铁灭症启动中的作用.
- 调查溶酶体膜通透性 (LMP) 与铁灭菌易感性之间的关系.
- 确定克服癌症治疗耐药性的策略.
主要方法:
- 使用光检测探针可视化和量化内溶酶体LPO.
- 研究了溶解体内LPO对铁释放和全细胞LPO的影响.
- 评估了溶酶体膜通透性 (LMP) 在耐铁灭细胞系中的作用.
- 研究了诺基因对耐药细胞中LMP诱导和细胞死亡的影响.
主要成果:
- 证明铁灭是由溶解体内的脂质过氧化 (LPO) 启动的.
- 表明,内溶酶体LPO触发铁泄漏和随后通过溶酶体膜通透性 (LMP) 引发细胞范围LPO.
- 确定耐铁灭的细胞系缺乏LMP,这种LMP可以通过黄素治疗恢复,导致细胞死亡.
结论:
- lysosomal LPO 是铁亡的一个关键发起者.
- 增强溶酶体膜通透性 (LMP) 是一种可行的策略,以克服癌症中的铁灭抵抗.
- 向 lysosomal 途径为癌症治疗提供了一个有希望的治疗途径.
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