Fig. 1

Plumbagin inhibited the proliferation of BCa cells rather than normal cells. The representative images of 293 T cells (a) and HK-2 cells (b) were treated with 0, 0.75 and 1.5 μM in 24 h, 293 T cells (c) and HK-2 cells (d) cells were cultured with the concentration gradient of plumbagin working solution (0, 5, 10, 20, 30, 50 μM) in 24 h and 48 h; the representative images of SV-HUC-1 cells were treated with the concentration (0, 0.75, 1.5 μM) (e) in 24 h and the concentration (0, 0.5, 1, 2, 5, 10 μM) in 24 h and 48 h (f); T24 cells (g) and UMUC3 cells (h) were treated with the concentration (0, 0.25, 0.5, 0.75, 1, 1.5 μM) in 24 h and 48 h, the proliferation curves of T24 cells (i) and UMUC3 cells (j), which were treated with plumbagin working solution (0, 0.75, 1.5 μM) for consecutive 4 days, the representative images of T24 cells (k) and UMUC3 cells (l) were treated with the concentration (0, 0.75, 1.5 μM) in 24 h. Magnification Power: 100×. **P < 0.01, ***P < 0.001