Depolarization of mitochondria membrane induced by Pim-1 siRNA in SACC cells. A. Cells were stained with JC-1 and analyzed by cytometer after Pim-1 and control siRNA transfection for 72 h. B. Mitochondrial depolarization presented by decrease in the red/green fluorescence intensity ratio. Results were showed as mean ± SD. p < 0.05, *control siRNA group compared with Pim-1 siRNA group.