一个定义的细菌联盟和空间转录学突出显示了Campylobacter jejuni和小鼠肠之间的复杂相互作用
Siddhi Chitre1, Raad Z Gharaibeh1,2, Christian Jobin1,3,4
1Department of Medicine, University of Florida College of Medicine, Gainesville, FL, United States.
Gut microbes
|December 18, 2025
概括
一个定义的细菌联盟和Campylobacter jejuni感染在小鼠诱导肠道炎症. 空间转录学揭示了特定区域的免疫反应和上皮细胞变化,突出了宿主-微生物相互作用.
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:
- 肠道微生物群显著影响宿主对Campylobacter jejuni感染的易感性.
- 特定肠道细菌与C. jejuni诱导的主体反应之间的精确相互作用在很大程度上是未知的.
研究的目的:
- 通过使用定义的细菌联盟,研究宿主对C. jejuni感染的反应.
- 确定特定肠道细菌在调节C. jejuni媒介炎症中的作用.
主要方法:
- 没有细菌的Il10-/-小鼠被定义的细菌联盟 (C13) 或C13加C. jejuni.
- 16S rRNA基因测序分析了微生物组成.
- 空间转录组学 (FISH和RNAscope) 在结肠内映射了基因表达.
主要成果:
- 在C13联盟的小鼠中,C. jejuni的殖民引起了显著的肠道炎症和基因表达.
- 在C. jejuni感染的小鼠中观察到埃舍里希亚和帕拉克洛斯特里迪亚的丰富性增加.
- 空间转录学揭示了局部免疫反应和上皮重塑,与组织相关的C. jejuni差异调节宿主基因表达.
结论:
- 定义的微生物联盟与空间转录学相结合,可以剖析复杂的宿主-病原体-微生物群相互作用.
- 这种方法提供了洞察肠道感染和宿主免疫反应背后的机制.
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