结肠直肠癌的预后:从瘤免疫微环境和肠道微生物群的见解
Quan Chen1, Youtao Zhou1, Zikai Lin1
1Department of Gastrointestinal Surgery, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Journal of gastrointestinal oncology
|September 15, 2025
概括
一个新的六基因风险模型确定了与结直肠癌 (CRC) 生存相关的预后基因. 像Deltaproteobacteria这样的肠道微生物调解了这种联系,为个性化CRC治疗策略提供了洞察力.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 微生物组研究 微生物组研究
背景情况:
- 结肠直肠癌 (CRC) 仍然是全球癌症死亡的主要原因,尽管治疗进展,患者预后不佳.
- 瘤免疫微环境 (TIME) 和肠道微生物群越来越多地被认为对CRC进展和治疗反应的作用.
- 目前的临床策略缺乏针对个性化CRC治疗的强大的生物标志物,突出了需要可操作的工具.
研究的目的:
- 开发使用预后基因的结直肠癌 (CRC) 临床可行的风险模型.
- 研究预后基因,肠道微生物群和CRC之间的因果关系.
- 引导个性化治疗决策,改善CRC患者的治疗结果.
主要方法:
- 来自GEO的差异表达基因 (DEG) 的分析以及与TIME和肠道微生物群相关的基因的整合.
- 门德尔随机化 (MR) 检查预后基因,肠道微生物群和CRC之间的因果关系.
- 使用TCGA-COADREAD数据集开发和验证一个六基因风险模型.
主要成果:
- 建立了一个六基因风险模型,高风险组的死亡率明显高.
- 在高危人群中观察到免疫细胞透率增加和免疫治疗反应减弱.
- 确定了Deltaprevotella和Methanobrevibacter作为预后基因和CRC之间的因果关系的调解者.
结论:
- 一个新的六基因风险模型有效预测CRC存活率,并受到肠道微生物群的影响.
- 肠道微生物调解了预后基因和结直肠癌之间的因果关系.
- 进一步研究CRC中的TIME和肠道微生物群调节,有可能改善治疗策略.
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