形态学和弹性的影响在剪切流中的癌细胞变形
bioRxiv : the preprint server for biology
|February 27, 2026
概括
癌细胞的形状和性显著影响细胞在血液流动中的变形,影响它们的迁移和传播. 了解这些机制是解释癌细胞如何在体内传播的关键.
科学领域:
- 生物物理学的生物物理.
- 计算生物学 计算生物学
- 癌症研究 癌症研究
背景情况:
- 癌细胞形态和机械特性对于理解它们在生理环境中的行为至关重要.
- 在剪切流下研究癌细胞动态对于理解转移至关重要.
研究的目的:
- 为了研究癌细胞形态和弹性的癌细胞形状在微通道剪切流中的变形模式的影响.
- 开发和利用一种新的计算框架来模拟癌症细胞动态.
主要方法:
- 通过分散粒子动力学 (DPD) 开发了一种混合连续粒子框架,用于细胞组件,以及用于细胞流相互作用的沉浸边界方法.
- 从显微镜图像中重建了癌细胞膜和细胞核的几何结构.
- 血被建模为一种不可压缩的牛顿流体.
主要成果:
- 癌细胞在1-2毫秒内呈现出快速变形,其次是形态和度依赖的形状演变.
- 紧的形态表现出强烈的恢复,而另一些则演变为折叠/叶片状态.
- 膜硬化影响了延长和紧性,而核硬化调节了变形和恢复;这些转变影响了流动动力学和引力.
结论:
- 癌细胞形态决定了硬度调节的变形模式,影响了细胞外流和引.
- 细胞变形和流动动力学之间的相互作用影响了随后的细胞迁移.
- 这为了解转移性环境中的循环瘤细胞运输提供了一个框架.
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