酸由内微生物群衍生,在结直肠癌中促进化疗耐药性
Linsheng Xu1,2, Bingde Hu2, Jingli He2
1Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Frontiers in pharmacology
|January 30, 2025
概括
内瘤微生物组衍生的酸盐通过激活PI3K-AKT通路来促进结直肠癌 (CRC) 的化学抵抗. 这一发现突显了CRC微生物组在克服耐药性的预后和治疗潜力.
科学领域:
- 在瘤学瘤学.
- 微生物组研究 微生物组研究
- 癌症治疗方法 癌症治疗方法
背景情况:
- 结肠直肠癌 (CRC) 仍然是全球癌症死亡的主要原因.
- 内微生物组在CRC化学抵抗中的作用尚未完全理解.
- 丁酸盐是一种微生物组代谢物,与癌症的进展有关.
研究的目的:
- 为了研究瘤内丁酸盐和结直肠癌中的化学抵抗之间的关系.
- 探索内微生物组特征和循环微生物组DNA (cmDNA) 的预后意义.
- 为了确定外源性丁酸盐对CRC细胞化学敏感性的影响.
主要方法:
- 16S rRNA测序用于分析CRC患者的微生物组合.
- 评估循环微生物组DNA (cmDNA) 的预后价值.
- 用CRC细胞系进行体外实验,以评估丁酸盐补充剂的效果.
主要成果:
- 减少微生物多样性和特定的细菌属 (Roseburia,Fusobacteria) 与耐化学物质相关.
- 内微生物组特征和cmDNA有效预测了CRC耐药性.
- 外源性酸盐通过激活PI3K-AKT通路,增强了CRC细胞的增殖,迁移和化学抵抗.
结论:
- 酸由内微生物群衍生,有助于结直肠癌的化学抵抗.
- 内微生物组有可能成为CRC的预后生物标志物.
- 准微生物组或丁酸盐代谢可能为CRC提供新的治疗策略.
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