Fig. 8. Antimetastatic potential of imipramine in zebrafish.
a At day 6 post injection, larvae were examined to evaluate whether micrometastasis developed by invading native HCT-116 cells. b The evaluation criteria were the presence of human cancer cell colonies (arrows) outside the yolk sac. Invading single cells are indicated by asterisks (*). Data are shown as the mean ± SD, compared with the control, *p = 0.049–0.01; **p = 0.001–0.009.