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癌细胞的限制,阻塞和粘附从集体侵入性链分离出来的癌细胞

Wei Wang¹, Robert A Law^2,3, Emiliano Perez Ipiña¹

¹Department of Physics & Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA.

|September 8, 2025

概括

癌细胞在侵袭期间分裂,导致转移,由细胞状态和粘附控制. 领导细胞促进单细胞脱离,而强大的细胞-细胞粘附导致更大,更少的破裂.

科学领域:

生物物理学的生物物理.
癌症生物学癌症生物学
细胞力学细胞力学

背景情况:

瘤入侵和转移涉及癌细胞从主要瘤中脱离.
了解控制细胞解离的机制对于预测转移潜力至关重要.

研究的目的:

为了研究控制癌细胞在侵袭过程中解离的因素.
为了确定细胞-细胞粘附和化疗线索是否影响单细胞与群体解离.

主要方法:

基于使用微流体设备的实验,开发了一种基于实验的物理模型,具有不同微通道宽度的微流体设备.
采用了相场细胞运动模型,结合了三个不同的细胞状态:追随者,引导者和领导者细胞.
分析了细胞通道粘附,细胞-细胞粘附和化学反应对细胞解离的影响.

主要成果:

大多数解离事件都涉及单细胞,在更广泛的道中观察到更大的群体断裂.
破裂概率在很大程度上独立于通道宽度.
细胞通道粘附对于狭窄通道的入侵至关重要;强大的细胞-细胞粘附导致更少,更大的破裂.
强大的化疗促进了更大,更快的破裂.
细胞解锁被认为是必要的,但不足以导致破裂.

结论:

一个带领细胞的物理模型成功地回顾了癌细胞解离的实验观测.
细胞对细胞的粘附和化疗显著影响侵袭期间细胞破裂的大小和频率.
这些发现为推动转移的物理机制提供了洞察力.

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