肠道菌群介导胆酸代谢对肠道免疫微环境的影响
Yan Zhang1,2, Xueyan Gao1,2, Shuochen Gao3
1Department of Ultrasound, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
肠道细菌的代谢物,胆汁酸 (BAs),影响免疫细胞,如Th17和Treg细胞. 本综述详细介绍了石灰酸 (LCA) 和脱氧酸 (DCA) 如何影响肠道免疫环境,并探讨了临床应用.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 胃肠病学 胃肠病学
背景情况:
- 肠道微生物群及其代谢物显著调节肠道免疫微环境.
- 由肠道菌群产生的胆酸 (BAs) 越来越多地被认为是它们在调节免疫细胞中的作用,包括T助手17 (Th17) 细胞和调节性T细胞 (Treg细胞).
- Th17细胞是促炎的,而Treg细胞是免疫抑制的,突出显示了它们在肠道免疫中的关键平衡.
研究的目的:
- 总结不同配置的石化酸 (LCA) 和脱氧化酸 (DCA) 对肠道Th17和Treg细胞的影响.
- 阐明这些胆酸影响肠道免疫微环境的机制.
- 讨论这些发现在调节肠道免疫力方面的潜在临床应用.
主要方法:
- 文献综述侧重于研究胆汁酸,肠道微生物群和免疫细胞调节的研究.
- 分析G蛋白结合胆酸受体1 (GPBAR1/TGR5) 和法尔内索伊德X受体 (FXR) 在调解胆酸对免疫细胞的影响中的作用.
- 综合有关LCA和DCA对Th17和Treg细胞群及其功能影响的信息.
主要成果:
- 特定配置的LCA和DCA差异调节肠道Th17和Treg细胞群.
- 胆酸受体GPBAR1/TGR5和FXR是胆酸与肠道免疫细胞之间相互作用的关键调解器.
- 这些相互作用显著影响整体的肠道免疫微环境,影响其促炎或免疫抑制状态.
结论:
- 来自肠道菌群的胆酸,特别是LCA和DCA,在塑造肠道免疫微环境方面发挥着至关重要的作用.
- 了解胆酸介导免疫调节的机制为开发向治疗提供了潜力.
- 对这些途径的进一步研究可能会导致针对免疫相关的胃肠道疾病的新型治疗策略.
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