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Updated: Sep 20, 2025

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定制一个功能性的合成微生物群落 通过生态控制缓解fusobacterium nucleatum感染的结肠直肠癌
Zhongkun Zhou1, Mengyue Yang1, Hong Fang1
1School of Pharmacy, Lanzhou University, No. 199 Donggang West Road, Lanzhou, Gansu, 730000, P. R. China.
概括
一个新的合成微生物社区 (SynCom) 有效地准Fusobacterium nucleatum,Fusobacterium nucleatum是结肠直肠癌 (CRC) 的关键细菌. 这种设计的SynCom通过调节肠道微生物群和宿主新陈代谢来抑制CRC的发展.
科学领域:
- 微生物学 微生物学
- 在瘤学瘤学.
- 系统生物学 系统生物学
背景情况:
- 多态微生物组与结直肠癌 (CRC) 的发展有关.
- 核细菌 (F. nucleatum) 经常在CRC患者中发现,其消除在治疗上是有益的.
研究的目的:
- 用多组学分析CRC中的微生物组和功能变化.
- 发现治疗干预的共生联盟.
- 设计和验证一种合成微生物群体 (SynCom) 用于治疗F.核阳性CRC.
主要方法:
- 整合了元基因组测序队列和多基因组数据.
- 代谢网络重建用于SynCom设计.
- 通过AOM-DSS诱导的小鼠CRC模型进行体外共养实验和体内验证.
主要成果:
- 在CRC患者的便和瘤组织中,F. nucleatum的丰度升高,与微生物失生症和代谢障碍相关.
- 一个包含七种低竞争物种的设计SynCom在体外抑制了F. nucleatum,并在体内殖民.
- 该SynCom促进了F.核脱殖,增强了托代谢和二次胆酸转化,减少了脂质积累和炎症.
结论:
- 开发的SynCom在小鼠模型中显示出显著的F.核抑制和CRC瘤抑制.
- 这种自下而上设计的SynCom代表了F.核阳性CRC的可控和有前途的治疗策略.
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