乳腺癌细胞的上下文依赖调节 乳腺癌细胞的E-卡德林表达, 分子发生和免疫敏感性 通过在体外体内不朽化的人类介质干细胞来调节
Bei Dai1,2,3, Neha Atale1, Amanda M Clark1,3,4,5
1Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA.
Cells
|September 13, 2025
概括
介酶干细胞 (MSC) 通过改变瘤细胞表型来影响乳腺癌 (BrCa) 转移. 了解这些相互作用是开发转移BrCa的新疗法的关键.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 干细胞生物学 干细胞生物学
背景情况:
- 转移是乳腺癌 (BrCa) 死亡的主要原因.
- 瘤微环境,包括介质干细胞 (MSCs),显著影响BrCa进展.
- 散布的BrCa细胞最初采用一个休眠的表皮表型.
研究的目的:
- 研究MSC如何影响转移性BrCa细胞的表型.
- 阐明MSCs促进BrCa从休眠状态向攻击性生长的进展的机制.
- 了解瘤-肌瘤相互作用在BrCa转移中的作用.
主要方法:
- 共同培养的BrCa细胞与永生的人类MSCs.
- 分析BrCa细胞的表型变化,包括E-cadherin的表达和增殖.
- 评估BrCa细胞对TRAIL诱导的亡的敏感性.
- 使用各种共同培养系统 (直接,有条件介质,Transwell) 调查分泌和分泌信号机制.
主要成果:
- 与MSC共同培养的BrCa细胞显示E-cadherin表达增加和增殖发生变化.
- 与对照细胞相比,共同培养的 BrCa 细胞对 TRAIL 诱导的亡具有不同的敏感性.
- 观察到的调节效应取决于BrCa细胞的上皮介质细胞状态.
- 显著的正分泌和分泌信号通路调解了MSC-BrCa细胞相互作用.
结论:
- MSC在推动BrCa转移性进展方面发挥着复杂和取决于背景的作用.
- MSC的相互作用可以将休眠的上皮细胞 BrCa 细胞恢复到具有攻击性的间细胞表型.
- 这些发现增强了对BrCa.Ca.中的瘤-肌瘤相互作用的理解.
- 这项研究为未来针对BrCa治疗中MSC的治疗策略提供了基础.
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