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胆菌体有机物用于研究药物诱导的伤害
Zhenguo Wang1,2, Chen Xing1, Luc J W van der Laan3
1Division of Pharmacology, Faculty of Sciences, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.
Stem cell research & therapy
|March 13, 2024
概括
хлорпромазин (CPZ) 通过破坏细胞屏障和损害胆酸载体而损害胆道,导致肝毒性. 这项研究突出了CPZ的重点.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 毒理学 毒理学 毒理学
- 细胞生物学 细胞生物学
背景情况:
- 药物诱导的胆管损伤是一种常见的临床问题,其机制尚不清楚.
- 几种药物与胆道损伤有关,需要进一步的机制性研究.
研究的目的:
- 为了研究原 (CPZ) 诱导的胆道损伤的机制.
- 利用先进的体外胆细胞培养物来获得机械学的洞察力.
主要方法:
- 从肝脏内胆管细胞器官 (ICO) 开发出成熟的胆管细胞样细胞 (CLC).
- 在胆固醇和非胆固醇条件下暴露于CPZ的CLC.
- 评估了紧结蛋白,屏障功能,输送体表达和氧化应激的变化.
主要成果:
- CPZ降低了紧结蛋白 (TJP1,CDH1,LOXL2) 和破坏了胆血管细胞屏障功能,由ZO-1,E-cadherin和染料泄漏证实.
- 氧化应激在CPZ诱导的早期损伤中发挥了重要作用.
- CPZ降低了关键胆酸载体 (ABCC3,SLC51A/B,ABCB1) 的表达,促进胆酸的积累.
- 单独使用CPZ并没有诱导炎症,但添加TNFα显示出协同效应.
结论:
- 肝脏内胆管细胞有机体 (ICO) 作为一种有价值的模型,用于识别对胆道有毒的药物.
- 该模型为药物诱导的肝毒性提供了机械的见解.
- 了解CPZ对胆血管细胞的影响为药物安全性评估提供了关键信息.
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