莫普斯特B通过mTOR介导的自和亡途径缓解肝纤维化
Mei-Lin Peng1,2,3, Li-Jie Zhang1, Yan Luo1
1State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmacy, Guizhou Medical University, Guian New District, Guiyang 550004, China.
Molecules (Basel, Switzerland)
|January 23, 2024
概括
莫普斯特B (PB) 通过抑制肝星细胞增殖和促进亡,有效降低肝纤维化. 这种化合物向mTOR通路,为肝纤维化提供了潜在的新疗法.
科学领域:
- 药理学 药理学是指药理学的学科.
- 肝病学 肝病学是一种肝病学.
- 细胞生物学 细胞生物学
背景情况:
- 肝纤维化是慢性肝病的关键病理过程.
- 向肝星细胞 (HSC) 激活是肝纤维化的治疗策略.
- 莫 B (PB) 是一种具有潜在治疗应用的化合物.
研究的目的:
- 为了研究phomopsterone B (PB) 在人肝星状细胞 (HSC) 中的抗纤维活性.
- 阐明PB在肝纤维化中的作用的潜在机制.
- 探索PB对HSC增殖,亡和自的作用.
主要方法:
- 人类HSCs (LX-2细胞) 被TGF-β1.1刺激.
- 在不同度 (1,2,4μM) 的PB处理.
- 定量实时PCR,西部污染,AO/EB染色,Hoechst33342染色,流细胞计,以及对自标记物的评估 (LC3B).
- 使用拉帕素和MHY1485.5对mTOR途径的研究.
主要成果:
- 在剂量取决的方式中,PB显著减弱了TGF-β1诱导的HSC增殖.
- PB降低了纤维化标志物α-SMA和原I/III的表达.
- 在HSC中,PB诱导了亡和抑制了自.
- PB对自和亡的调节通过依赖mTOR的途径进行调节.
结论:
- 莫普斯特B (PB) 在TGF-β1刺激的人类HSC中显示出显著的抗纤维作用.
- 通过抑制HSC增殖,促进细胞灭亡和通过mTOR途径调节自,PB可缓解肝纤维化.
- PB代表了预防和治疗肝纤维化的有前途的治疗候选者.
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