SLPI knockdown induced apoptosis in PCC cells. A, the influences of SLPI knockdown on the apoptosis of AsPC-1 cells, BxPC-3 and PANC-1 were detected by FCM, respectively. B, quantification shows that the percentage of apoptotic cells in SLPI-siRNA transfected group is significantly higher compared to that in the control groups. Values plotted are means ± SD (n=3). * vs PDAC-WT cell lines, P < 0.05. # vs PDAC-Non cell lines, P < 0.05.