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ACTIVATION OF MACROPHAGE-LIKE CELLS BY MULTIPLE GROOVED SUBSTRATA. TOPOGRAPHICAL CONTROL OF CELL BEHAVIOUR

机译:多个沟槽基质对巨噬细胞样细胞的激活。细胞行为的断层控制

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摘要

We studied the influence of substrata topography on the behaviour of murine P388D1 mdcrophage cell line. Cells were plated on plain fused silica substrata or substrata with microfabricated grooves of varying depth and width. Cell spread area, elongation, orientation and F-actin content were measured on plain substratum and 6 sets of gratings. The speed and persistence of cell movement were also studied. We found that patterned substrata substantially activated cell spreading and elongation and significantly increased the persistence and speed of cell movement, shallow grooves being more effective than deep ones. The contact of cells with micropatterned substrata significantly increased the F-actin content in cells. The sensitivity of LPS (lipopolisaccharide) stimulated and unstimulated macrophages to topographical cues was also compared.
机译:我们研究了地下地形对小鼠P388D1 mdcrophage细胞系行为的影响。将细胞铺在普通熔融石英基底或具有变化深度和宽度的微细槽的基底上。在平坦的基质和6组光栅上测量细胞扩散面积,伸长率,取向和F-肌动蛋白含量。还研究了细胞运动的速度和持久性。我们发现,图案化的基质可以基本激活细胞的扩散和伸长,并显着增加细胞运动的持久性和速度,浅沟槽比深沟槽更有效。细胞与具有微图案的基质的接触显着增加了细胞中F-肌动蛋白的含量。还比较了脂多糖(LPS)刺激和未刺激的巨噬细胞对地形线索的敏感性。

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