A. Total protein expression of Cdc42, PAK1, PKA1α, cathepsin B, cathepsin D, PTPN14, and STMN1 in LoVo (a) and Hct116 (b) control and CoCl2-treated cells before and after ML141 treatment. B. Clonal formation of CoCl2-treated LoVo and Hct116 before and after ML141 treatment. C. Cell invasion assay of CoCl2-treated LoVo and Hct116 cells before and after ML141 treatment (40×). D. Cell migration experiments of LoVo and Hct116 CoCl2-treated cells before and after ML141 treatment (40×). E. Histograms of the mean cell numbers of CoCl2-treated LoVo and Hct116 cells in clonogenic efficiency (a), invasion (b), and migration (c) experiments before and after ML141 treatment. F. Expression of PAK1 after transfection with siRNA PAK1-2133, 1228, 629, PC, NC, and MC in LoVo control (a), CoCl2-treated LoVo cells (b), Hct116 cells (c), and CoCl2-treated Hct116 cells (d). CTR, control cells; TRE, CoCl2-treated cells; PC, positive control; NC, negative control; MC, mock control.