个性化Clostridioides difficile殖民风险预测和人类肠道中的益生菌治疗评估
Alex V Carr1, Nitin S Baliga2, Christian Diener3
1Institute for Systems Biology, Seattle, WA, USA; Molecular Engineering Program, University of Washington, Seattle, WA, USA.
Cell systems
|August 7, 2025
概括
微生物社区模型预测了Clostridioides difficile的殖民和感染风险. 这些模型还通过识别关键的代谢相互作用来指导针对C. difficile感染 (CDI) 的个性化益生菌治疗.
科学领域:
- 微生物学 微生物学
- 代谢建模 代谢建模
- 肠道微生物组研究研究
背景情况:
- 克洛斯特里迪奥伊德困难菌的殖民是常见的,但可能导致C. difficile感染 (CDI).
- 防止C. difficile殖民并在CDI出现之前清除它至关重要.
- 目前用于CDI治疗的策略,如便微生物群移植 (FMTs),有局限性.
研究的目的:
- 开发和验证微生物社区规模的代谢模型 (MCMMs),用于预测C. difficile殖民.
- 获得对影响C. difficile的宿主微生物群相互作用的机制性见解.
- 评估MCMMs在指导个人化益生菌治疗中对复发性CDI的潜力.
主要方法:
- 开发和应用微生物社区规模代谢模型 (MCMMs).
- 在体外和体内验证MCMM预测.
- 对大规模人类队列数据 (15,204个人跨越五个队列) 的分析.
- 通过一种新型益生菌尾酒对C. difficile生长抑制的预测.
主要成果:
- MCMMs准确地预测了C. difficile的殖民易感性.
- 确定了参与微生物特异性相互作用的关键代谢物 (糖酸盐,三糖,甲素).
- 在不同个体中发现了不同的C. difficile代谢.
- MCMMs成功预测了个性化的益生菌疗效,并确定了新的治疗点.
结论:
- MCMMs为预测病原体殖民提供了一个强大的框架.
- 这种方法提供了对C. difficile-微生物群动态的机制性见解.
- MCMMs可以指导开发针对性益生菌干预措施,以预防和治疗CDI.
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