One-dimensional topography underlies three-dimensional fibrillar cell migration.

One-dimensional topography underlies three-dimensional fibrillar cell migration.
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DOI:
10.1083/jcb.200810041
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发表时间:
2009-02-23
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Yamada KM
Yamada KM
中科院分区:
其他
文献类型:
--
作者:
Doyle AD;Wang FW;Matsumoto K;Yamada KM

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目前细胞迁移的概念是在常规的二维(2D)细胞培养中建立的,但对于在定向的3D纤维细胞外基质(ECM)中迁移的细胞,地形对细胞迁移的作用知之甚少。我们使用一种名为微光调制(μPP)的新的微图案化技术来确定1D纤维图案在3D细胞迁移中的功能。与2D相比,细胞在1D和3D中的迁移都是快速的,单轴的,不依赖于ECM配体密度,依赖于肌球蛋白II的收缩能力和微管(MTS)。一维和三维迁移也以前MT束和后中心体为特征。我们提出细胞通过3D纤维基质的一维迁移机制是通过2D基质所不能模仿的。
Current concepts of cell migration were established in regular two-dimensional (2D) cell culture, but the roles of topography are poorly understood for cells migrating in an oriented 3D fibrillar extracellular matrix (ECM). We use a novel micropatterning technique termed microphotopatterning (μPP) to identify functions for 1D fibrillar patterns in 3D cell migration. In striking contrast to 2D, cell migration in both 1D and 3D is rapid, uniaxial, independent of ECM ligand density, and dependent on myosin II contractility and microtubules (MTs). 1D and 3D migration are also characterized by an anterior MT bundle with a posterior centrosome. We propose that cells migrate rapidly through 3D fibrillar matrices by a 1D migratory mechanism not mimicked by 2D matrices.
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