代谢建模揭示了IBD中宿主微生物组代谢网络的多层次放松调节
Jan Taubenheim1, A Samer Kadibalban2,3, Johannes Zimmermann2,4,5
1Research Group Medical Systems Biology, Institute of Experimental Medicine, Kiel University and University Hospital Schleswig-Holstein, Kiel, Germany. j.taubenheim@iem.uni-kiel.de.
Nature communications
|June 2, 2025
概括
炎症性肠道疾病 (IBD) 的肠道代谢变化涉及营养途径中的宿主和微生物干扰. 通过饮食恢复代谢平衡为IBD患者提供了新的治疗策略.
科学领域:
- 胃肠病学 胃肠病学
- 代谢学 代谢学 代谢学
- 微生物组研究 微生物组研究
背景情况:
- 炎症性肠病 (IBD) 涉及慢性免疫失调和破坏宿主微生物相互作用.
- 对于IBD病理生理学的特定代谢支仍然不完全理解.
研究的目的:
- 为了研究IBD患者在治疗前后的宿主微生物群代谢交叉对话.
- 确定与IBD炎症相关的关键代谢途径和分子特征.
主要方法:
- 在纵向IBD队列中对微生物组,转录组和代谢组进行密集的分析.
- 主体肠道和肠道微生物组代谢模型的重建.
- 分析跨多个数据层的代谢变化,包括NAD,氨基酸,单碳和脂代谢.
主要成果:
- 在宿主和微生物群中观察到同时发生的代谢变化,影响NAD,氨基酸,单碳和脂代谢.
- 主体酸盐的催化作用损害了NAD生物合成;中断的转胺转移影响了平衡.
- 抑制单碳循环导致脂样本的改变;微生物组的变化加剧了宿主代谢失衡.
结论:
- IBD涉及复杂的宿主微生物群代谢失调,影响必需营养物质通路.
- 代谢建模确定了潜在的饮食干预措施,以恢复平衡.
- 准宿主-微生物群代谢交叉对话为IBD提供了新的治疗途径.
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