3,5-diCQA通过ROS/AMPK/mTOR介导的线粒体功能障碍和铁亡抑制结直肠癌细胞的生长
Weibing Wang1, Xingwei Xu1, Long Zhao1
1Department of Colorectal and Anal Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Cell cycle (Georgetown, Tex.)
|October 30, 2023
概括
3,5-diCQA通过诱导氧化损伤和铁亡来抑制结肠直肠癌 (CRC) 的生长. 这种化合物激活ROS/AMPK/mTOR通路,导致线粒体功能障碍和CRC细胞减少增殖.
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:
- 结肠直肠癌 (CRC) 仍然是一个重大的全球健康挑战.
- 已知3,5-diCQA的抗瘤作用,但其在CRC中的精确分子机制尚未完全理解.
研究的目的:
- 阐明3,5-diCQA在结直肠癌细胞中的抗癌作用背后的分子机制.
- 研究活性氧物种 (ROS) 和AMPK通路在3,5-diCQA作用中的作用.
主要方法:
- 细胞增殖,迁移,细胞亡和细胞循环测定在CRC细胞系 (HCT116,SW480) 上进行.
- 评估了线粒体功能,包括有氧糖解和氧化酸化.
- 研究了ROS,AMPK通路和铁的参与,包括使用ROS抑制剂N-乙半氨酸 (NAC) 的实验.
- 在体内抗瘤疗效使用裸体小鼠的瘤形成模型进行了评估.
主要成果:
- 3,5-diCQA显著抑制了增殖和迁移,同时增强了细胞亡,并在CRC细胞中引起细胞循环停止.
- 3,5-diCQA通过ROS生成激活AMPK通路,诱导线粒体损伤,并减少线粒体有氧糖解和氧化酸化.
- 该化合物在CRC细胞中促进了氧化损伤和铁亡,而NAC的效果被逆转.
- 3,5-diCQA在体内证明了对CRC瘤发育的抑制作用.
结论:
- 3,5-diCQA通过ROS/AMPK/mTOR途径诱导线粒体功能障碍,在结直肠癌中发挥抗癌作用.
- 这导致氧化损伤和铁亡的增强,从而减少癌细胞的增殖和迁移.
- 3,5-diCQA代表了结直肠癌治疗的潜在治疗剂.
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