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Diversity in self-organized forms and migration modes in isolated epithelial cells

机译:孤立上皮细胞中自组织形式和迁移模式的多样性

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It is widely believed that cells, derived from different species or different cell lines, behave differently. However, this study reports that a variety of forms and migration modes in isolated epithelial cells of Madin-Darby Canine Kidney type were observed, although the cells were taken from the same cell line and the experimental conditions were kept constant. To understand the diverse formation processes in such cell behavior, a simple mathematical model, namely the particle-fiber model, was constructed. In this model, a single cell is assumed to be composed of a multiple of particles, interconnected by stress fibers. The particles mimic focal adhesion biding to a substrate. The stress fibers mimic a cytoskeleton, that plays an important role in maintaining the shape and the movement of the cell. Here, a growth process was introduced, which varied the size of the particles and the thickness of the fibers in dependence on the forces exerted on the particles. Simulation of the results showed that various cell shapes can be self-organized even if the parameters, which describe cell properties and their interactions with environment, were kept constant.
机译:众所周知,衍生自不同物种或不同细胞系的细胞表现不同。然而,本研究报告说,观察到孤立上皮细胞中的各种形式和迁移模式被观察到Madin-Darby犬肾型的孤立上皮细胞,尽管从相同的细胞系中取出细胞,并且实验条件保持恒定。为了理解这种细胞行为中的多样化过程,构建了简单的数学模型,即粒子 - 光纤模型。在该模型中,假设单个电池由颗粒的倍数组成,由应力纤维互连。颗粒模拟局灶性粘附到底物上。应力纤维模仿细胞骨架,其在保持细胞的形状和运动方面起着重要作用。这里,引入生长过程,其在施加在颗粒上施加在颗粒上的力变化颗粒的尺寸和纤维的厚度。结果模拟表明,即使描述细胞性质及其与环境的相互作用,也可以自组织各种细胞形状。

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