胺通过影响线粒体动力学,改变运输体表达和加剧亡来加剧损伤
Mingkang Zhang1, Yan Zhou2, Xiujuan Wang1
1Department of Pharmacy, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, China; School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, China.
Toxicology letters
|July 28, 2025
概括
抗生素珍塔素通过损害线粒体和促进亡来损害细胞. 早期发现这种药物诱导的损伤仍然是一个挑战.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 毒理学 毒理学 毒理学
- 线粒体生物学 线粒体生物学
背景情况:
- 药物诱导的毒性是医院获得的急性损伤 (AKI) 的主要原因之一.
- 根他米辛是一种氨基糖化物抗生素,经常使用,但由于毒性而受到限制.
- 线粒体功能障碍是AKI的一个关键因素,使其成为治疗点.
研究的目的:
- 为了研究 gentamicin 诱导的毒性机制.
- 为了阐明线粒体功能障碍在 gentamicin 的脏损伤中的作用.
- 探索AKI的潜在治疗策略.
主要方法:
- 在体外实验中使用脏管状上皮细胞.
- 剂量和时间依赖于珍塔米辛的暴露.
- 评估线粒体结构,膜潜力和活性氧物种 (ROS).
- 对运输体,线粒体动态蛋白 (OPA1,Mitofusin1/2,DRP1) 和亡标记物 (Bax/Bcl2-Caspase3通路) 的分析.
主要成果:
- 亨塔米辛诱导了管状上皮细胞的剂量和时间依赖的损伤.
- 观察到的是线粒体结构受损,膜潜力降低和ROS增加.
- 亨塔米辛改变了运输体,破坏了线粒体动力学,并促进了亡.
- 像血清肌素和血液尿素 (BUN) 这样的标准生物标志物无法准确地检测早期的珍塔诱导的损伤.
结论:
- 根他米辛通过线粒体功能障碍和亡诱导引起毒性.
- 目前的生物标志物对于早期检测胺诱导的损伤是不够的.
- 了解这些机制为管理 gentamicin 的临床使用和开发 AKI 疗法提供了基础.
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