多糖和肠道微生物群的精细结构特征 同调节粘素O-糖化:机制和进展
Tong Zhao1, Bo Zhang1, Xuansheng Hu1
1Shangluo University, School of Biomedical and Food Engineering, Shangluo, 726000, China.
Carbohydrate polymers
|March 14, 2026
概括
饮食中的多糖对肠道微生物和粘素O-糖化有影响. 这种相互作用会影响肠道平衡,在粘膜屏障功能的甘氨酸向益生菌中具有治疗潜力.
科学领域:
- 胃肠道学和微生物学
- 葡萄糖生物学和宿主-微生物相互作用
背景情况:
- 粘氨酸O-糖化对肠道平衡至关重要,涉及宿主甘氨酸和肠道微生物代谢之间的复杂相互作用.
- 多糖是微生物的碳来源,根据它们的结构特征影响它们的殖民和新陈代谢.
- 微生物代谢物和细菌酶动态重塑宿主粘液O-甘氨酸,影响粘液特性和微生物粘附.
研究的目的:
- 审查多糖精细结构如何影响肠道微生物组成和粘素O-糖化.
- 要突出"SCFAs-GPCR/HDAC"轴在调节糖转移酶中的作用.
- 在疾病模型和潜在的治疗策略中讨论病理性粘素重塑.
主要方法:
- 文献综述侧重于多糖体结构,微生物代谢和粘素O-糖化之间的相互作用.
- 分析疾病模型,包括炎症性肠病 (IBD) 和过敏模型,以了解病理性粘素重塑.
- 针对多糖体结构,微生物调节和酶抑制的治疗策略的确定.
主要成果:
- 多糖体结构决定了微生物群落的组成和新陈代谢,影响宿主粘素O-糖化.
- "SCFAs-GPCR/HDAC"轴是甘氨酸转移酶表达和木氨酸O-甘氨酸重塑的关键调节器.
- 病理性粘素重塑,以减少硫化/化和改变核心结构为特征,在各种疾病环境中观察到.
结论:
- 了解多糖的结构-功能关系对于调节肠道微生物群和宿主糖化非常重要.
- 通过设计特定的多糖,调节微生物群落或抑制关键酶,可以开发治疗干预措施.
- 针对甘氨酸的益生菌为精确调节粘膜屏障功能和治疗相关疾病提供了有希望的方法.
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