多糖可可可可可可可可可可可可可可可可可可可可改善酒精性肝病,通过NRF2调节干扰铁亡
Xiangyu Zhou1,2, Jincheng Wang1,2, Sufang Zhou2
1Guizhou University of Traditional Chinese Medicine, Guiyang 550002, China.
Aging
|March 20, 2024
概括
波利亚可可斯多糖 (PCP) 通过减少氧化应激和炎症来改善酒精性肝病. 这项研究表明,PCP调节Nrf2通路,减少铁亡和肝损伤.
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.
- 分子生物学分子生物学
背景情况:
- 酒精性肝病 (ALD) 是一个严重的健康问题,治疗选择有限.
- 从Poria cocos中提取的Poria cocos多糖化物 (PCP),以肝脏保护和抗炎性质而闻名.
- 在ALD中PCP的特定机制,特别是它对Nrf2信号通路和铁亡的影响,尚不清楚.
研究的目的:
- 研究PCP在改善酒精性肝损伤中的治疗机制.
- 阐明PCP在调节Nrf2信号通路和ALD中的铁亡中的作用.
- 在ALD模型中评估PCP对肝功能,血脂,氧化应激和炎症的影响.
主要方法:
- 通过每日胃内注射高品质酒精饮料,建立了一种酒精性肝损伤的老鼠模型.
- 用PCP,ferrostatin-1 (一种铁灭抑制剂) 和ML385 (一种Nrf2抑制剂) 给大鼠和细胞模型.
- 分析了肝功能,血脂水平,氧化应激标志物,炎症性细胞因子,Nrf2信号通路激活,以及与铁亡相关的蛋白质 (FTH1,细胞内Fe2+).
主要成果:
- 在酒的老鼠中,PCP的使用显著降低了肝功能标志物和血脂水平,并降低了肝脂沉积.
- PCP治疗增强了Nrf2信号通路表达,调节了氧化应激,并抑制了NF-κβ和下游炎症通路.
- PCP上调调节了FTH1蛋白表达,并降低了细胞内Fe2+,这表明铁亡的减少. 在实验室中观察到类似的保护作用.
结论:
- 波利亚可可斯多糖化物 (PCP) 在酒精性肝病中显示出显著的治疗潜力.
- 通过调节Nrf2信号通路,减少氧化应激,并抑制铁亡,PCP可以改善ALD.
- PCP的抗炎作用和减少脂质沉积的能力有助于其在酒精性肝损伤中的保护作用.
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