微生物群控制宿主陈氧胆酸的糖化,以改善胆酸疾病引起的腹
Zishen Lin1, Yue Feng1, Jinping Wang1
1State Key Laboratory of Animal Nutrition and Feeding, Department of Animal Nutrition and Feed Science, China Agricultural University, Beijing, China.
Microbiome
|February 5, 2025
概括
胆酸 (BA) 疾病通过产生CDCA-3β-glucuronide引起腹. 肠道微生物,如Lactobacillus reuteri (L. reuteri) 产生英多尔-3-碳醇 (I3C) 来抑制这种作用,为腹提供治疗点.
科学领域:
- 胃肠病学 胃肠病学
- 微生物学 微生物学
- 代谢学 代谢学 代谢学
背景情况:
- 胆酸 (BA) 代谢障碍与腹有关,但确切的机制尚不清楚.
- 了解BA疾病诱导的腹的发病性对于开发有效的治疗方法至关重要.
研究的目的:
- 阐明肠道微生物群在BA疾病引起的腹中的作用.
- 为了确定特定的微生物代谢物和宿主途径,涉及到条件.
- 探索潜在的治疗点,以改善BA疾病引起的腹.
主要方法:
- 结肠BA池和健康和腹猪中的微生物群的比较分析.
- 便微生物群移植和细胞实验以确定致病原体.
- 非向的代谢基因组学和RNA转录基因组学用于代谢物和基因识别.
- 在体外实验 (siRNA,CO-IP,免疫光) 和小鼠模型来验证路径.
主要成果:
- 陈二醇酸 (CDCA) 代谢障碍产生CDCA-3β-葡萄化物,这是腹的关键驱动因素.
- 乳杆菌reuteri (L. reuteri) 衍生的印-3-碳醇 (I3C) 通过抑制UDP糖转移酶家族1成员A4 (UGT1A4) 抑制BA糖化.
- I3C激活了烯碳化合物受体,降低了UGT1A4和CDCA-3β-葡萄化物的调节,从而上调了FXR-SIRT1-LKB1通路,并抑制了P53介导的亡.
结论:
- 来自肠道微生物群的I3C通过调节宿主UGT1A4的表达,在预防BA疾病引起的腹方面发挥着关键作用.
- 通过UGT1A4介导的CDCA-3β-glucuronide转化是一个关键的治疗标.
- 针对肠道上皮细胞和微生物之间的相互作用,为治疗BA疾病诱导的腹提供了一个有希望的策略.
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