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大肠癌的肠道微生物组诊断生物标志物
Fei Shen1, Chenzhou Xu1, Chao Wang1
1Department of Gastroenterology, The First Hospital of Jiaxing, Affiliated Hospital of Jiaxing University, Jiaxing, China.
概括
便微生物生物标志物,包括Fusobacterium nucleatum和Peptostreptococcus anaerobius,显示出对诊断结直肠癌 (CRC) 的希望. 这些肠道细菌可以帮助监测CRC的进展,并改善早期检测策略.
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:
- 目前的结直肠癌 (CRC) 诊断方法缺乏足够的灵敏度和特异性.
- 非侵入性检测方法对于改善早期诊断和干预至关重要.
- 肠道微生物组在CRC病变发生中的作用需要针对高风险个体进行量身定制的查.
研究的目的:
- 识别和验证用于结直肠癌 (CRC) 检测的便微生物生物标志物.
- 探索特定肠道细菌与CRC进展阶段之间的关联.
- 开发用于CRC诊断,治疗疗效和预后的模型.
主要方法:
- 便元基因组测序被用来识别潜在的细菌生物标志物.
- 定量聚合酶连锁反应验证了180名参与者 (健康对照,腺瘤和CRC患者) 中所选微生物种类的相对丰度.
- 为了CRC进展,治疗疗效和预后,建立了统计模型.
主要成果:
- 在健康对照组,腺瘤和CRC患者组中发现了不同丰富的细菌物种.
- 菌核素 (Fn) 和Peptostreptococcus anaerobius (P. anaerobius) 显示出与CRC阶段和转移有显著的相关性.
- P. anaerobius与Fn结合,在单个微生物中显示出最高的诊断价值.
结论:
- 便微生物标记物,特别是Fn和P.无氧菌,具有用于CRC诊断和监测的潜力.
- 这些生物标志物可以帮助评估CRC进展和潜在的治疗反应.
- 对肠道微生物群签名的进一步研究可以提高结直肠癌的精确查.
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