在肠道平衡和炎症性肠病中的微生物衍生D-氨基酸
Kentaro Miyamoto1,2, Tomohisa Sujino3,4
1Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan.
Inflammation and regeneration
|January 6, 2026
概括
来自微生物群的D-氨基酸 (D-AAs) 对肠道健康和免疫平衡至关重要. D-AA代谢的干扰与炎症性肠病 (IBD) 病原发生有关,提供了潜在的治疗点.
科学领域:
- 胃肠道学和免疫学
- 微生物组研究 微生物组研究
- 代谢学 代谢学 代谢学
背景情况:
- 炎症性肠病 (IBD) 涉及复杂的宿主-免疫系统和肠道微生物群相互作用.
- 以前被忽视的微生物群衍生D-氨基酸 (D-AAs) 是影响肠道平衡的重要后生物.
- D-AAs影响表皮屏障功能,免疫细胞活性和微生物组成.
研究的目的:
- 审查D-AAs在肠道中的生物合成,功能和免疫作用.
- 专注于D-AAs在炎症性肠病 (IBD) 病原发生过程中的参与.
- 探索D-AAs作为IBD的生物标志物和治疗点的潜力.
主要方法:
- 文献综述综合了关于D-氨基酸在IBD中的当前研究.
- 在人类和小鼠模型中研究D-AA代谢的研究分析.
- 检查微生物D-AAs,宿主感知酶 (例如DAO) 和免疫反应之间的相互作用.
主要成果:
- 特定的D-AAs,如D-alanine,对于细菌细胞壁和通信至关重要.
- D-AAs调节宿主免疫细胞,肠道微生物群落和粘膜屏障完整性.
- 不调节的D-AA代谢和受损的宿主感知 (例如,通过DAO) 恶化IBD相关的炎症.
结论:
- D-AAs在维持肠道健康方面发挥着重要作用,并与IBD有关.
- 改变D-AA代谢是IBD病变发生的一个关键因素.
- 作为IBD的非侵入性生物标志物和治疗策略,D-AA具有有希望的翻译潜力.
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