Lacticaseibacillus rhamnosus LRa05减轻了小鼠中循环胺诱导的免疫抑制和肠道微生物群疾病
Mingming Zhu1, Lvzhu Yang1, Sufen Kong1
1Wuhan Wecare Probiotic Research Institute, Wuhan, China.
Journal of food science
|November 26, 2024
概括
在免疫抑制的小鼠中,乳酸菌cillus rhamnosus LRa05补充剂改善了免疫力和肠道微生物群. 这种益生菌恢复了免疫平衡,增强了肠道屏障功能和调节的微生物组成,表明其作为食补充剂的潜力.
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:
- 益生菌调节肠道微生物群和免疫反应.
- 肠道功能障碍与免疫功能障碍有关.
- 乳酸菌cillus rhamnosus LRa05是一种潜在的免疫调节益生菌.
研究的目的:
- 为了研究Lacticaseibacillus rhamnosus LRa05在循环胺 (CTX) 诱导的免疫抑制小鼠中的免疫调节作用.
- 评估LRa05对免疫器官指数,肠道完整性,细胞因子分泌和肠道微生物群组成的影响.
主要方法:
- 在用CTX治疗的小鼠口服L. rhamnosus LRa05时.
- 评估体重,免疫器官指数和肠道组织学.
- 测量血清中的细胞因子水平 (TNF-α,IL-1β,IL-10,sIgA).
- 16S rRNA amplicon测序用于肠道微生物群分析.
主要成果:
- 在接受CTX治疗的小鼠中,LRa05的使用减轻了体重减轻和恢复了免疫器官指数.
- LRa05促进了关键免疫细胞因子 (TNF-α,IL-1β,IL-10,sIgA) 的分泌.
- LRa05增加了肠道微生物群的多样性,并恢复了Firmicutes/Bacteroidota的比例.
- 特定的有益细菌 (例如,Lachnospiraceae_NK4A136_group,Roseburia) 被丰富,而病原生物 (例如,Helicobacter) 被减少.
结论:
- Lacticaseibacillus rhamnosus LRa05有效地维持肠道微生物群的稳定性,并调节免疫力在一个免疫抑制的模型.
- LRa05显示出作为食补充剂的益生菌,以增强免疫功能和肠道健康的潜力.
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