百合花的多糖通过微生物群-N8-乙精氨酸-cGAS-STING信号轴缓解结肠炎
Yuanyu Wu1, Xiaoyu Wan2, Lu Hou3
1Department of Gastrointestinal, Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China.
Frontiers in microbiology
|November 19, 2025
概括
百合花多糖 (LP) 通过调节肠道微生物群和增加N8-乙精氨酸 (N8AS) 来治疗性结肠炎 (UC). 这种天然化合物通过cGAS-STING通路抑制炎症,为IBD提供了有前途的治疗方法.
科学领域:
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
背景情况:
- 炎症性肠病 (IBD) 的患病率正在增加,需要新的治疗策略.
- 目前对性结肠炎 (UC) 的治疗方法存在局限性,这推动了对基于天然产品的疗法的研究.
- 百合花多糖 (LP) 因其潜在的抗结肠病特性而受到研究.
研究的目的:
- 在硫酸 (DSS) 诱导的UC模型中评估百合花多糖 (LP) 的治疗作用.
- 阐明LP作用的基本机制,重点关注肠道微生物群,N8-乙精氨酸 (N8AS) 和cGAS-STING通路.
- 研究N8AS作为结肠炎的直接治疗方法的治疗潜力.
主要方法:
- 使用DSS诱导的UC小鼠模型来评估LP的疗效.
- 通过测序分析了肠道微生物群组成,量化了代谢物水平,特别是N8AS.
- 在体外测试中,研究了LP对N8AS产生和肠道屏障功能的影响,同时测试了外源N8AS补充剂和评估cGAS-STING通路激活.
主要成果:
- LP的使用显著降低了UC症状,恢复了肠道微生物的平衡,增加了像Bacteroides这样的有益细菌.
- LP治疗显著增加了N8AS水平,外源N8AS补充剂也显示出抗结肠病作用.
- 在实验室中,LP和N8AS都抑制了cGAS-STING通路,减少了促炎细胞因子,并增强了肠道屏障的修复.
结论:
- 百合花的多糖 (LP) 通过调节肠道微生物群,增加N8AS,并抑制cGAS-STING炎症途径,产生抗结肠病作用.
- 这些发现突出了一个新的治疗轴,涉及微生物群,N8AS和UC治疗的免疫信号.
- LP代表了对UC的有前途的自然疗法,N8AS显示其作为其有益作用的关键调解者的潜力.
关键词:
IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBD IBDN8 - 乙精氨酸是什么cGAS-STING 的使用情况.我们的肠道微生物群.百合花的多糖化物 百合花的多糖化物更多相关视频
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