解读炎症性肠道疾病发病队列的微生物组-代谢组景观
Shiva T Radhakrishnan1,2, Benjamin H Mullish1,2, Marton L Olbei1
1Division of Digestive Diseases, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK.
Gut microbes
|July 18, 2025
概括
这项研究揭示了炎症性肠道疾病 (IBD) 中的早期肠道微生物群-代谢相互作用. 在IBD发病阶段的这些新发现可能会指导未来的诊断和治疗策略.
科学领域:
- 微生物学 微生物学
- 代谢学 代谢学 代谢学
- 胃肠病学 胃肠病学
背景情况:
- 肠道微生物群在炎症性肠道疾病 (IBD) 中的作用已经确立,但之前的研究仅集中在测序和使用晚期疾病患者上,因此受到限制.
- 这限制了对微生物功能的理解,并引入了诸如药物效应等混因素.
研究的目的:
- 在早期炎症性肠道疾病 (IBD) 发病队列中研究新的肠道微生物群-代谢相互作用,使用集成的多omics分析.
- 在诊断时识别不同的微生物和代谢特征,使IBD亚型 (克罗恩病和性结肠炎) 与健康对照区分开来.
主要方法:
- 来自IBD发病队伍和健康对照组的便样本的分析,使用16S rRNA基因测序进行微生物分析.
- 通过核磁共振和质谱学进行多系统代谢体表型化.
- 综合性网络分析以确定微生物群-代谢组相互作用.
主要成果:
- 在IBD患者和健康对照者之间,以及克罗恩病 (CD) 和性结肠炎 (UC) 亚型之间,观察到微生物多样性和分类学概况的显著差异.
- 鉴定出了不同的代谢概况,UC患者的托/英多尔代谢产物,桑氨酸和皮科林酸的显著差异.
- 网络分析揭示了CD中与健康相关的微生物代谢相互作用的丧失,以及CD和UC中改变的途径活动,包括,丁酸盐和牛代谢.
结论:
- 在IBD诊断时,存在新的扰乱微生物群-代谢相互作用.
- 这些早期的相互作用为改善IBD的诊断工具和治疗干预提供了潜在的目标.
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