BON cells were stably co-transfected with pcDNA3 (vector), GST-PKD2WT, or GST-PKD2KD by electroporation. A. BON cell clones were lysed and Western blot was performed using anti-PKD2 antibody. B. Following stable transfection, MTT assay was performed. Cells were plated in duplicate; MTT labeling reagent was added, followed by the addition of solubilization solution and measurement of blue formazan production. C. Following stable transfection, Matrigel invasion assay of stable BON cell clones was performed. Cells were plated in triplicate in Matrigel invasion chambers; 5% FBS served as a chemoattractant. Data represent means of triplicate determinations ± SD; * = p<0.05 vs. pcDNA.