线粒体裂变和亡在化物诱导的功能障碍中的足迹
Qiyong Zuo1, Lin Lin1, Yuling Zhang1
1Henan Key Laboratory of Environmental and Animal Product Safety, Henan University of Science and Technology, Kaiyuan Avenue 263, Luoyang, 471000, Henan, People's Republic of China.
Biological trace element research
|December 6, 2023
概括
过度的化物暴露会通过破坏线粒体分裂而导致损伤,导致细胞亡和功能受损. 这项研究调查了引起的毒性背后的细胞内机制.
科学领域:
- 环境毒理学环境毒理学
- 细胞生物学 细胞生物学
- 脏病理学 脏病理学
背景情况:
- 化物是一种广泛存在的环境污染物,具有已知的健康风险.
- 现有的文献将化物暴露与功能障碍联系起来,但细胞内机制尚不清楚.
研究的目的:
- 为了研究诱导的毒性细胞内通路.
- 探索线粒体裂变在化物对脏的影响中的作用.
主要方法:
- 小鼠被暴露在不同化物度 (0-100毫克/升) 中90天.
- 组织病理学分析包括H&E,PAS,PASM,PB和ALP染色.
- 免疫组织化学 (IHC) 评估了与线粒体分裂相关的蛋白质 (Mff, Fis1, MiD49, MiD51).
主要成果:
- 化物暴露导致了质缩,管状变性和真空化.
- 观察到糖蛋白的增加,底层膜的加厚,铁的积累,以及性酸酶活性的改变.
- 化物调节了线粒体裂变蛋白,导致了亡.
结论:
- 过度的化物表现出显著的毒性.
- 化物破坏了线粒体分裂-融合平衡,导致脏组织损伤和亡.
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