动物的Bifidobacterium BD400通过histidine新陈代谢来保护我们免受原诱导的关节炎
Yang Yang1,2, Qing Hong1,2, Xuehong Zhang3
1State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Shanghai, China.
Frontiers in immunology
|February 6, 2025
概括
通过改善肠道微生物群和肠道屏障功能,Bifidobacterium animalis BD400口服减少了老鼠的类风湿性关节炎 (RA) 严重程度. 这种益生菌干预为RA预防和治疗提供了潜在的战略.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 风湿性关节炎 (RA) 是一种与肠道微生物群失调相关的慢性自身免疫性疾病.
- 针对肠道健康的早期干预可能会延迟RA的发病和进展.
研究的目的:
- 调查口服Bifidobacterium animalis BD400在缓解RA发展方面的疗效.
- 探索B.I.的影响. 动物BD400关于肠道微生物群,肠道屏障功能和原诱导性关节炎 (CIA) 鼠标模型中的免疫反应.
主要方法:
- 用一种原诱导性关节炎 (CIA) 鼠标模型来评估RA的发展.
- 评估了关节炎得分,脚厚度和关节病理.
- 血清和突液分析测量了免疫标记物 (抗体,细胞因子).
- 分析了肠道微生物组成 (16S rDNA),代谢物和肠道屏障蛋白表达 (qPCR).
主要成果:
- 一个B. B. B. B. animalis BD400显著降低了CIA老鼠的关节炎严重程度,爪子胀和关节病理.
- 通过口服服用B. 动物BD400降低了促炎性细胞因子 (TNF-α,IL-1β,IL-17A) 和特定抗体 (抗CII IgG).
- 肠道屏障蛋白表达 (occludin-1,MUC-2,ZO-1) 增加,表明肠道屏障功能得到改善.
- 肠道微生物群的组成,特别是HT002属,和histidine代谢发生了变化,减少了1-甲基-L-histidine和urocanate.
结论:
- 一个B. B. B. B. 动物BD400通过恢复肠道透性和抑制全身炎症来改善RA.
- 益生菌对肠道微生物群和胺代谢的影响有助于减缓RA进展.
- 一个B. B. B. B. 动物体BD400显示为风湿性关节炎的预防或治疗药物具有前途.
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