Nrf2/FSP1/CoQ10轴介导的铁致死与酸诱导的毒性有关
Haiyan Zhu1, Yijing Yang1, Yenan Duan1
1School of Medicine, Yichun University, 576 XueFu Road, Yuanzhou District, Yichun, 336000, PR China.
Archives of biochemistry and biophysics
|July 21, 2024
概括
酸 (SA) 通过触发细胞死亡通路ferroptosis,导致损伤. 这通过Nrf2/FSP1/CoQ10通路发生,导致氧化应激和损伤.
科学领域:
- 生物化学 生物化学
- 毒理学 毒理学 毒理学
- 细胞生物学 细胞生物学
背景情况:
- 来自马栗的酸 (SA) 是临床上使用的,但与增加功能障碍有关.
- 之前的研究已经通过铁灭症确定了SA诱导的毒性,但精确的分子机制需要进一步研究.
研究的目的:
- 为了阐明底层的分子途径 酸 (SA) 诱导的毒性.
- 调查Nrf2/FSP1/CoQ10轴在SA触发损伤中的作用.
主要方法:
- 使用了老鼠近端管状上皮细胞 (NRK-52E) 和小鼠模型.
- 评估了细胞活力,活性氧物种 (ROS),麦隆迪化物 (MDA),脂质过氧化,辅酶Q10 (CoQ10),尼古丁胺胺氨基二核酸 (NADH),铁灭菌抑制蛋白1 (FSP1) 和聚烯转移酶 (COQ2) 的活性.
- 研究了基因操纵 (过度表达/抑制) 和药理学剂 (Nrf2激动剂) 对SA毒性的影响.
主要成果:
- SA抑制了细胞活力,增加了ROS,铁,MDA和脂质过氧化,同时耗尽了CoQ10和NADH.
- SA降低了FSP1和COQ2的活动,加剧了铁亡;过度表达COQ2,FSP1或CoQ10补充减弱了SA诱导的铁亡.
- SA抑制了Nrf2水平及其与FSP1促进体的结合,降低FSP1的表达. Nrf2过度表达或DMF治疗增强了FSP1,改善了抗氧化能力并减轻了铁亡.
结论:
- 酸 (SA) 通过氧化应激和铁死诱导毒性.
- Nrf2/FSP1/CoQ10信号通路被SA严重抑制,导致观察到的损伤.
- 针对Nrf2/FSP1/CoQ10轴为SA诱导的毒性提供了一个潜在的治疗策略.
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