ptophenolide通过破坏肠道的生物功能来加剧ptolide诱导的肝损伤
Binbin Zhang1, Qiuxia Lin1, Manyun Dai1
1Department of Pharmacy, Laboratory of Hepatointestinal Diseases and Metabolism, West China Hospital, Sichuan University, Chengdu 610041, China.
(Tripterygium wilfordii) (TW) 的三 (TP) 和三 (TPH) 的成分会导致严重的肝损伤. 通过通过代谢物PCS调解的增加肠道透性和LPS水平,TPH会加剧TP诱导的肝损伤.
科学领域:
- 药理学 药理学是指药理学的学科.
- 毒理学 毒理学 毒理学
- 胃肠病学 胃肠病学
背景情况:
- (Tripterygium wilfordii) 是一种传统的中医药,用于治疗炎症.
- 肝毒性限制了TW的临床使用,其潜在机制尚不清楚.
- 酸 (TP) 和酸 (TPH) 是关键的TW化合物,涉及到毒性.
研究的目的:
- 为了阐明TW诱导的肝毒性机制.
- 研究TP和TPH对肝损伤的单独和协同作用.
- 识别导致TW毒性的关键代谢物和微生物变化.
主要方法:
- 给C57BL/6小鼠使用TP和TPH.
- 对于血脂聚糖 (LPS) 水平的ELISA.
- 代谢学和16S rRNA测序用于肠道微生物组和代谢物分析.
- 在体内验证代谢物诱导的毒性.
主要成果:
- 联合TPH和TP的使用导致肠道出血和微生物失调.
- TPH和TP增加了血LPS,与严重的肝损伤相关.
- 有毒代谢物PCS与肠道屏障损伤有关.
- 在联合使用中,PCS补充加剧了肝毒性.
- 由TPH诱导的PCS增强了LPS并激活了肝脏的TLR4/MyD88通路,恶化了TP肝损伤.
结论:
- 通过PCS,TPH通过损害肠道屏障而加剧TP诱导的肝毒性.
- 循环LPS增加和随后的TLR4/MyD88激活介导了协同性肝损伤.
- 了解这些机制对于安全的TW应用至关重要.
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