在结肠直肠癌患者中,Parvimonas micra形成了一个独特的细菌网络,与口腔病原体一起
Thyra Löwenmark1, Linda Köhn1, Therese Kellgren2
1Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden.
Journal of translational medicine
|October 17, 2024
概括
像Parvimonas micra和Fusobacterium nucleatum这样的口腔细菌在结直肠癌 (CRC) 患者中更为丰富,特别是那些微卫星不稳定 (MSI) 瘤患者. 它们与其他细菌一起存在可能表明CRC的发展.
科学领域:
- 微生物学 微生物学
- 在瘤学瘤学.
- 胃肠病学 胃肠病学
背景情况:
- 肠道微生物群在结直肠癌 (CRC) 的发展和进展中起着至关重要的作用.
- 口腔病原体的过度代表越来越多地与CRC有关.
- 特定的口腔病原体Parvimonas micra和Fusobacterium nucleatum特别感兴趣.
研究的目的:
- 为了研究 CRC 患者的便微生物环境.
- 专注于口腔病原体的丰富性和关联性,特别是Parvimonas micra和Fusobacterium nucleatum,在CRC中.
- 探索微生物组成,瘤位置和微卫星不稳定性 (MSI) 状态之间的关系.
主要方法:
- 在便样本上进行了16S rRNA测序.
- 从275名CRC患者和95名健康对照人群中采集了样本.
- 分析了与瘤特征相关的微生物组成.
主要成果:
- 根据瘤位置和MSI状态观察到微生物组成的显著差异.
- 在MSI瘤患者中,Parvimonas micra,Fusobacterium nucleatum和Peptostreptococcus stomatis更为丰富.
- 这些病原体与一种与CRC相关的细菌集群有关,包括Bacteroides fragilis和其他口腔物种,与对照物种有显著差异.
结论:
- 这项研究强调了几种与CRC相关的细菌在患者中的类似分布模式.
- 这些发现强调了考虑细菌物种在CRC机制中的共发生的重要性.
- 同时存在口腔病原体和其他细菌可能与CRC的发展和进展有关.
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