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益生菌Pediococcus pentosaceusLi05通过FXR-SHP和FXR-FGF15途径改善胆固醇的发生
Shengyi Han1, Kaicen Wang1, Jian Shen1
1State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China.
一种益生菌Pediococcus pentosaceus Li05,在治疗原发性硬化胆道炎 (PSC) 中显示出有前途. 它通过调节胆汁酸通路和肠道微生物群来减少小鼠模型中的肝损伤和纤维化.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 微生物学 微生物学
- 胃肠病学 胃肠病学
背景情况:
- 初级硬化性脑膜炎 (PSC) 是一种罕见的,进展性胆固醇性肝病,没有有效的治疗方法.
- 法内索伊德X受体 (FXRs) 调节胆酸代谢,是PSC的潜在治疗点.
- Pediococcus pentosaceus Li05是一种益生菌,具有已知的抗炎性质.
研究的目的:
- 在PSC的小鼠模型中研究Pediococcus pentosaceus Li05的治疗潜力.
- 阐明Li05影响胆固醇,肝损伤和肠道微生物群的机制.
主要方法:
- 使用了一种3,5-diethoxycarbonyl-1,4-Dihydrocollidine (DDC) 诱导的胆固醇症小鼠模型.
- 小鼠接受了Pediococcus pentosaceus Li05.05的治疗.
- 评估了肝损伤,炎症,纤维化,胆道增生,FXR信号传递,肠道微生物群组成和肠道屏障功能.
主要成果:
- 施用Li05显著降低了肝损伤,炎症,纤维化和胆道增生.
- 05激活了肝脏的FXR-SHP和叶的FXR-FGF15通路,降低了Cyp7a1的表达.
- Li05调节肠道微生物群,增加有益细菌和改善肠道屏障功能,减少内毒素转移.
结论:
- Pediococcus pentosaceus Li05显示出对胆固醇和PSC的显著治疗潜力.
- Li05通过调节胆汁酸代谢,FXR信号和肠道微生物群来发挥其作用.
- 进一步研究Li05作为胆固醇性肝病的治疗策略是有必要的.
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