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一个EpCAM/Trop2机械定位器差异调节人类癌细胞的集体行为

Azam Aslemarz^1,2,3, Marie Fagotto-Kaufmann^1,4, Artur Ruppel^5,1

¹CRBM, University of Montpellier and CNRS, Montpellier, 34293, France.

The EMBO journal

|November 21, 2024

概括

乳腺上皮癌细胞中高水平的EpCAM和Trop2会影响细胞的扩散和迁移. 耗尽EpCAM有助于凝聚性扩散,而Trop2耗尽则具有相反的效果,影响细胞收缩性和组织湿.

科学领域:

细胞生物学细胞生物学
生物物理学的生物物理.
癌症研究癌症研究

背景情况:

皮质细胞粘附分子 (EpCAM) 和Trop2是癌症中的细胞表面标记物.
它们在癌症转移和调节肌肉素依赖的收缩性中的作用尚未完全理解.
高的EpCAM和Trop2水平是上皮细胞乳腺癌细胞的特征.

研究的目的:

研究EpCAM和Trop2在上皮细胞乳腺癌细胞中的形态遗传影响.
了解这些标记物如何影响细胞粘附,迁移和收缩性.
阐明 EpCAM 和 Trop2 在癌症转移中的作用.

主要方法:

利用MCF7细胞球体作为一个体外模型.
采用了细胞生物学和生物物理方法.
分析了EpCAM和Trop2耗尽对球形状物行为的影响.

主要成果:

EpCAM 枯竭刺激了凝聚性球状体的扩散.
热带2耗尽对球形扩散产生了相反的影响.
无论是EpCAM还是Trop2,都适度的细胞收缩性,由于皮层张力而对基质湿化的差异性影响.
由于在特定的细胞和组织接口的部分丰富,产生了不同的表型.

结论:

EpCAM-Trop2对作为一个机械定位器,调整乳腺上皮癌细胞的粘合和迁移行为.
通过EpCAM和Trop2对收缩性和湿化的不同调节会影响转移潜力.
了解这些机制可以为向癌症转移提供见解.

关键词:

行为氨酸细胞骨细胞骨细胞粘附细胞粘附细胞皮层细胞皮层组织力学组织力学与瘤相关的蛋白质

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