瘤居住的葡萄球菌的乳酸盐生产促进了肺腺癌中的转移性殖民
Huan Yu1, Yang Du2, Yuling He1
1Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department I of Thoracic Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China.
Cell host & microbe
|July 10, 2025
概括
葡萄球菌细菌在肺癌转移中丰富,并促进癌症的传播. 这些细菌在瘤细胞中激活了伪缺氧信号通路,驱动了转移.
科学领域:
- 微生物学 微生物学
- 在瘤学瘤学.
- 癌症研究 癌症研究
背景情况:
- 肺微生物群在癌症发展中的作用尚不清楚.
- 在转移性肺癌病变中发现了葡萄球菌菌种,并与复发有关.
研究的目的:
- 为了研究葡萄球菌在肺癌转移中的作用.
- 阐明Staphylococcus促进癌症进展的机制.
主要方法:
- 使用患者衍生的细菌菌株和各种模型 (细胞系,有机体,小鼠全移植,异种移植).
- 研究了细菌乳酸盐生产和宿主单碳酸转运体1 (MCT1) 表达的影响.
- 研究了淘汰细菌乳酸生成基因和抑制MCT1.1的效果.
主要成果:
- 发现斯塔菲洛科克斯尼帕伦西斯和S.capitis增强了肺癌细胞的转移潜力.
- 细菌乳酸可调节瘤细胞MCT1的表达,促进乳酸摄取和伪缺氧信号传递.
- 禁用细菌的乳酸盐生产或抑制MCT1减少了体外和体内葡萄球菌驱动的转移.
结论:
- 瘤居住的葡萄球菌种通过激活宿主伪氧信号来促进肺癌转移.
- 准细菌乳酸盐生产或MCT1为肺癌转移提供了潜在的治疗策略.
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