在患有肝细胞癌的患者中,瘤相关微生物组的分析
Christian Schulz1, Ramiro Vilchez-Vargas1, Elif Öcal2
1Department of Medicine II, LMU University Hospital, LMU Munich, Munich, Germany.
Gut pathogens
|July 9, 2025
概括
肝瘤微生物群分析显示,较高的细菌多样性与息性癌症患者的短生存时间相关. 特定的细菌,如Gemella haemolysans和Helicobacter pylori与生存结果有关,这表明它们在肝细胞癌中发挥了作用.
科学领域:
- 在瘤学瘤学.
- 微生物组研究 微生物组研究
- 胃肠病学 胃肠病学
背景情况:
- 肠道细菌表明肠道微生物群与癌症发展之间存在联系.
- 肝脏瘤微生物组在癌症进展和患者结局中的作用需要进一步调查.
研究的目的:
- 为了分析肝脏瘤中的微生物组合.
- 探索内微生物群,肝细胞癌 (HCC) 阶段和存活率之间的关系.
主要方法:
- 在SORAMIC试验中对20名HCC患者进行的探索性研究,分为治愈和息组.
- 从档案瘤组织中对16S rRNA基因V1-V2区域进行测序.
- 生物信息分析用于将AMPLICON序列变异 (ASV) 分配到胃肠道来源并评估细菌多样性.
主要成果:
- 在瘤和非瘤肝脏组织中发现了细菌.
- 在息治疗组中观察到更高的细菌多样性,与更短的存活时间相关 (例如,金黄色葡萄球菌,巴克特罗伊德斯帕卢斯,中国菌).
- 增加的微生物群生物多样性与更多的病变有关.
结论:
- 肝脏瘤中上部胃肠道 (UGI) 细菌的存在表明通过受损的肠道屏障功能或胆道系统转移.
- 具有促炎和致癌潜力的内细菌可能在HCC病变发生过程中发挥作用.
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