比菲多细菌 (Bifidobacterium animalis) RH外聚糖二方向调节炎症性骨代谢障碍
Shuyuan Shi1, Zeqian Yang1, Zixin Han2
1Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.
International journal of biological macromolecules
|February 11, 2026
概括
来自Bifidobacterium animalis RH的细胞外多糖 (EPS) 显示出对炎症性骨疾病的治疗潜力. 通过调节关键信号通路,EPS促进骨质细胞功能并抑制骨质细胞形成.
科学领域:
- 骨生物学和病理学 骨生物学和病理学
- 微生物学和免疫学
- 生物技术是生物技术.
背景情况:
- 骨代谢的炎症性失调有助于骨病理,如骨质疏松症和骨关节炎.
- 双杆菌衍生的细胞外多糖 (EPS) 具有潜在的治疗益处,但它们的发展有限.
研究的目的:
- 在炎症性骨疾病中研究Bifidobacterium animalis RH的细胞外多糖 (EPS) 的治疗潜力和机制.
- 在体外探索EPS对骨质母细胞和骨质母细胞功能的影响.
主要方法:
- 细胞外多糖 (EPS) 是从Bifidobacterium animalis RH.中提取的.
- 在体外模型中使用了脂聚糖 (LPS) 刺激的MC3T3-E1骨质细胞和RANKL诱导的RAW 264.7骨质细胞前体,用EPS治疗.
- 分析了关键的信号通路,基因表达和细胞功能.
主要成果:
- 通过抑制TLR4/NF-κB通路和激活RUNX2.2,EPS恢复了LPS受损的骨质细胞功能,增强了增殖,分化,矿化和原合成,并通过抑制TLR4/NF-κB通路和激活RUNX2.
- 通过减少炎症性细胞因子,抑制ROS,降低RANK的调节,并破坏MITF/PU.1/NFATc1网络,EPS减弱了骨质细胞形成.
- 在炎症性骨疾病中,EPS表现出双重调节机制.
结论:
- 双杆菌衍生的EPS在炎症性骨疾病中表现出有前途的治疗潜力.
- 通过特定的分子通路,EPS调节骨质母细胞和骨质母细胞的活动.
- 需要进一步开发EPS作为治疗骨病理的食生物治疗药物.
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