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Updated: Jan 11, 2026

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葡萄球菌表皮菌调节MDA-MB-231乳腺癌细胞中与EMT相关的基因表达和活力
Farzaneh Zarei Mahmoodabadi1, Akram Sadat Tabatabaee Bafroee1, Arfa Moshiri2,3
1Department of Biology, ET.C., Islamic Azad University, Tehran, Iran.
Iranian journal of microbiology
|November 14, 2025
概括
斯塔菲洛科克 (Staphylococcus epidermidis) 影响乳腺癌细胞的活力,并通过改变表皮-介质细胞转变 (EMT) 基因表达来促进转移. 这表明这种细菌可能会影响乳腺瘤的进展.
科学领域:
- 微生物学 微生物学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 乳腺组织微生物群的组成在健康和癌症状态之间有所不同.
- 某些细菌,如Staphylococcus epidermidis,在乳腺瘤中发现,可能会影响瘤的进展.
- 斯塔菲洛科克斯表皮球菌 (Staphylococcus epidermidis) 涉及表皮层-介质细胞过渡 (EMT),这是癌症转移的一个关键过程.
研究的目的:
- 为了研究Staphylococcus epidermidis (S. epidermidis) 培养物和无细胞超物 (CFS) 对乳腺癌细胞存活率的影响.
- 评估S. epidermidis对MDA-MB-231细胞中EMT相关基因 (Snail1,纤维素素1,N-cadherin) 的表达的影响.
主要方法:
- 用不同度的S. epidermidis培养物和CFS治疗MDA-MB-231细胞.
- 在不同时间点使用MTT测定来评估细胞活力.
- 使用实时PCR分析24小时暴露后EMT相关基因的表达水平.
主要成果:
- 高度的S. epidermidis培养物 (MOI 100) 和CFS (14%) 显著降低了癌细胞活力.
- 在MOI 100的S. epidermidis培养上调了牛1和纤维素1 (FN1) 的表达.
- 治疗CFS (5-7%) 显著增加了Snail1,FN1和N-cadherin (CDH2) 的表达,表明EMT诱导.
结论:
- 斯塔菲洛科克斯表皮球菌 (Staphylococcus epidermidis) 影响乳腺癌细胞活力和EMT基因表达.
- 这些发现表明S. epidermidis在促进乳腺癌进展和转移方面可能发挥作用.
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