Study on the Gelsolin Effects in Oral Epithelia Carcinoma (OEC) Cells by Atomic Force Microscopy and Micro-pillars Arrays

According to the concept of cell physiology, when the cells contact the extracellular matrix (ECM), the cell will adhere, spread and migrates. Despite the sophistication of experimental and computational approaches in cell and molecular biology, the mechanisms by which cells sense and respond to mechanical stimuli are poorly understood. In order to evaluate the characteristics of the cellular physiology, we use atomic force microscopy (AFM) and micro-pillars arrays (MPAs) to measure the cell mechanics of the oral epithelia carcinoma cells (OEC-M1). After AFM measurement, the stiffness of the OEC-Ml-wt was 41-95 kPa, meanwhile the OEC-M1-g6 was 21-46 kPa. In deed, 0.88-4.75 nN of the traction force was generated in OEC-M1-g6 cells, which the actin filament assemble around the cytoplasm might caused by the gelsolin, after forward, both the adherent and moving ability of the cells were increased.