核菌:在宿主微生物群网络中的跨境病原体
Xueyan Gao1, Feiyu Cao1, Yonghao Li1
1Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China.
Gut pathogens
|November 20, 2025
概括
Fusobacterium nucleatum从口腔开始转变为病原体,导致诸如结肠直肠癌之类的疾病. 了解其机制为微生物群驱动的疾病提供了新的治疗点.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- Fusobacterium nucleatum (Fn) 是一种口腔细菌,与包括结直肠癌 (CRC),炎症性肠病 (IBD),关节炎和早产在内的全身性疾病有关.
- 从共生到致病的Fn的过渡涉及复杂的毒性因素和宿主和微生物群体内的相互作用.
研究的目的:
- 为了合成Fusobacterium nucleatum的特定亚种的致病机制.
- 阐明Fn在免疫逃避,炎症调节和瘤进展中的作用.
- 探索Fn在微生物网络中的相互作用以及微生物代谢物的影响.
主要方法:
- 文献综述综合了关于Fusobacterium nucleatum致病性的当前研究.
- 分析Fn的毒性因子,免疫相互作用和疾病进展中的作用.
- 检查Fn与其他微生物和代谢物的协同和对抗相互作用.
主要成果:
- Fn利用毒性因子进行免疫逃避,炎症调节和瘤进展.
- 在肠道中,Fn破坏肠道屏障的完整性,改变免疫平衡 (Th17/Treg),并诱导巨细胞的两极分化.
- Fn与其他微生物和代谢物进行上下文依赖的相互作用,影响疾病的结果.
结论:
- Fusobacterium nucleatum拥有多种不同的致病机制,有助于各种系统性疾病.
- 了解Fn在微生物群中的相互作用及其代谢影响对于开发新干预措施至关重要.
- 针对Fn及其相关的微生物网络,为微生物群驱动的病理提供了潜在的治疗策略.
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