Fig. 1: PTP4A1 is overexpressed in OSCC tissues and cells.

A Representative Immunohistochemistry (IHC) staining for PTP4A1 in OSCC and normal tissue sections (brown, scale bar = 15 μm, magnification ×400). B PTP4A1 expression in 6 pairs of OSCC and matched normal tissues analyzed by western blotting. C PTP4A1 expression in OSCC- (SCC-25, HSC-6, and HN-4) and human oral keratinocyte (HOK) cells assessed via western blotting. D RT-qPCR detection of PTP4A1 expression in SCC-25, HSC-6, and HN-4 cells and human oral keratinocytes (HOK). *P < 0.05, **P < 0.01. ***P < 0.001.