科利巴克对前列腺癌产生了依赖于雄激素和独立于雄激素的作用
Raag Agrawal1, Sarah Al-Hiyari2, Rupert Hugh-White2
1Department of Human Genetics, University of California-Los Angeles, Los Angeles, CA, USA; Department of Urology, University of California-Los Angeles, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center, University of California-Los Angeles, Los Angeles, CA, USA.
European urology oncology
|November 15, 2024
概括
生产可利巴克的大肠杆菌通过诱导基因组不稳定性,可能导致前列腺癌 (PC). 这种细菌毒素与像DHT这样的雄激素相结合,在PC细胞中协同增加体质突变和kataegis.
科学领域:
- 在瘤学瘤学.
- 微生物学 微生物学
- 遗传学 遗传学 是一个
背景情况:
- 前列腺癌 (PC) 的病因是多因素的,并未完全理解.
- 生产可利巴克的大肠杆菌 (pks+大肠杆菌) 通过基因组不稳定性与癌症发病有关.
- 众所周知,雄激素促进PC中的瘤转位.
研究的目的:
- 为了调查pks+大肠杆菌和PC诊断之间的关联.
- 探索pks+大肠杆菌,PC分子结构和雄激素之间的关系.
- 为了评估 colibactin 和二激素 (DHT) 对 PC 细胞的体外影响.
主要方法:
- 在235人的队列中,pks+大肠杆菌与PC诊断的量化关联.
- 在体外实验中使用了 colibactin 742 和 DNA/RNA 测序.
- 评估了 colibactin 742,DHT 和它们组合对细胞系的影响.
主要成果:
- 科利巴克丁暴露与PC诊断呈正相关性 (p=0.04).
- 在体外,菌素显著增加了复制分叉停滞和融合 (p<0.01).
- 结合 colibactin 和 DHT 暴露引起的体质突变和 kataegis 比单独使用的任何药物都多.
结论:
- 研究结果表明,在细胞培养中, colibactin 和 DHT 对基因组不稳定性和 kataegis 的协同诱导.
- 生产可利巴克的pks+大肠杆菌是前列腺癌病因的可信贡献者.
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