MiR-145 inhibits OSCC cell invasion. Cells transfected with miR-145 mimics and miRNA control were starved overnight and then seeded in the Transwell chambers coated with Matrigel for invasion assay. Following a 24 h-culture, non-invading cells in the upper chamber were removed and invading cells were stained and calculated in four microscopic fields per sample. Details are described in the Materials and Methods. Shown are representative images of invading cells (A). The bar graphs (B), corresponding to upper panels, show means ± SD of the numbers of invading cells from three independent experiments. **, P <0.01.