首页> 外文会议>American Society of Mechanical Engineers(ASME)/Society of Tribologists and Lubrication Engineers(STLE) International Joint Tribology Conference; 20071022-24; San Diego,CA(US) >REGULATION OF CELL ADHESION AND PROLIFERATION BY PHYSICOCHEMICAL SURFACE MODIFICATION AND PROTEIN ENHANCEMENT DUE TO MECHANOTRANSDUCTION
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REGULATION OF CELL ADHESION AND PROLIFERATION BY PHYSICOCHEMICAL SURFACE MODIFICATION AND PROTEIN ENHANCEMENT DUE TO MECHANOTRANSDUCTION

机译:机械转移引起的细胞表面修饰和蛋白质增强调节细胞的粘附和增殖。

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摘要

Cell adhesion and proliferation and protein expression on surfaces possessing different topographies and chemical characteristics are examined in the presence of mechanical stress. Results from earlier studies illustrate the significance of surface roughness and chemistry modification on endothelial cell adhesion and spreading on untreated and plasma-treated polyethylene surfaces. Furthermore, changes in the friction characteristics of bovine articular cartilage resulting from mechanotransduction are correlated with variations in the near surface expression of a glycoprotein secreted from the chondrocytes in the superficial layer of the cartilage. Recent work indicates that this glycoprotein plays a crucial role in the formation of a sacrificial boundary layer that effectively lubricates the cartilage surface, protecting it from mechanical wear.
机译:在存在机械应力的情况下检查具有不同形貌和化学特征的表面上的细胞粘附和增殖以及蛋白质表达。早期研究的结果表明,表面粗糙度和化学修饰对内皮细胞粘附和在未经处理和经等离子体处理的聚乙烯表面上扩散具有重要意义。此外,由机械转导引起的牛关节软骨的摩擦特性变化与软骨表层软骨细胞分泌的糖蛋白的近表面表达变化有关。最近的工作表明,这种糖蛋白在牺牲性边界层的形成中起着至关重要的作用,该边界层可有效润滑软骨表面,保护其免受机械磨损。

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