通过细胞力学通过扫描离子导电显微镜监测部分EMT动力学
Xufang Zhang1, Xueqia Zhang1, Mingkun Li1
1School of Information Science and Technology, North China University of Technology, Beijing 100144, China.
Analytical chemistry
|September 5, 2024
概括
细胞力学,特别是弹性,可以识别瘤细胞中的部分上皮层-介质细胞过渡 (EMT). 这一发现提供了一种无标签的方法来追踪癌症转移中的动态EMT过程.
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:
- 瘤细胞通过表皮-介质细胞过渡 (EMT) 启动转移,常常在体内表现出部分EMT.
- 部分EMT涉及基因表达的变化,但并不总是显著的形态变化.
- 准确确定部分EMT的动态状态仍然是一个挑战.
研究的目的:
- 研究细胞力学与部分EMT的动态过程之间的关系.
- 为了确定细胞力学是否可以作为部分EMT状态的标记.
主要方法:
- 使用扫描离子导电显微镜 (SICM) 来测量细胞力学.
- 在HCT116结肠癌细胞中使用TGFβ诱导部分EMT.
- 分析了EMT标记物 (Snai1,Zeb1,Fn1,MMP9) 和上皮标记物 (E-cadherin,EpCAM) 的基因表达.
主要成果:
- 部分EMT细胞显示弹性降低,这是可逆的.
- 形态变化不是部分EMT状态的显著指标.
- 细胞力学与动态EMT过程有很强的相关性.
结论:
- 细胞弹性是部分EMT的一个敏感指标.
- 细胞力学可以作为一个无标签的标记,用于识别部分EMT状态.
- 这种方法保留了瘤细胞的生理特征.
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