奥克拉托克素A诱导线粒体通路的亡和铁亡,通过促进糖解
Yao Zhou1, Wenying Chen1,2, Shiyu Feng1
1School of Public Health, Zunyi Medical University, No.1 Campus Road, Xinpu District, Zunyi, 563000, Guizhou, People's Republic of China.
概括
奥克拉托克素A (OTA) 通过破坏线粒体功能,触发细胞损伤,通过代谢重编程促进亡和铁亡,并增加糖解. 这项研究揭示了OTA.
科学领域:
- 毒理学 毒理学 毒理学
- 细胞生物学 细胞生物学
- 代谢学 代谢学 代谢学
背景情况:
- 毒素A (OTA) 是一种毒性食品污染物.
- 由OTA引起的毒性,特别是代谢重编程的机制尚未完全理解.
研究的目的:
- 研究代谢重编程在OTA诱导的毒性中的作用.
- 检查OTA对人类细胞细胞代谢和亡的影响.
主要方法:
- 人类靠近管道上皮细胞 (HK-2) 接受了OTA和/或2-脱氧-D-葡萄糖 (2-DG) 的治疗.
- 评估了细胞活力,活性氧物种 (ROS),谷氨 (GSH),麦隆迪化物 (MDA),乳酸 (LA) 和蛋白质水平.
主要成果:
- 通过OTA降低了GSH,Lonp1,TRAP1,MPC1,GPX4,Bcl-2和Bcl-xl蛋白质的水平.
- OTA增加了ROS,MDA,LA,GLUT1,HK2,PKM2,PFKP,ACSL4,Bax和CYPD的水平. 这就是为什么OTA可以增加ROS,MDA,LA,GLUT1,HK2,PKM2,PFKP,ACSL4,BAX和CYPD的水平.
- 通过受损的线粒体平衡和增强的葡萄糖分解,OTA诱导了线粒体亡和铁亡.
结论:
- 通过破坏线粒体平衡,OTA在细胞中诱导亡和铁亡.
- 代谢重编程,特别是增加糖解,在OTA毒性中起着关键作用.
- 这项研究为OTA诱导的细胞损伤机制提供了新的见解.
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