Cell migration and invasion assays were performed as described previously8 (link). Briefly, OSCC cells were transfected with siRNAs as described above and incubated for 48 h. Transwell chambers were used for cell migration (BioCoat Control Insert 24-well plate 8.0 μm; Corning Inc., Corning, NY, USA) and invasion (BioCoat Matrigel Invasion Chamber 24-well plate 8.0 μm; Corning Inc.) analyses. The numbers of migrated or invaded cells were determined microscopically by counting in eight randomly selected microscopic fields per membrane.
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