Fig. 2
From: Echinacoside exerts anti-tumor activity via the miR-503-3p/TGF-β1/Smad aixs in liver cancer
a Effect of ECH on cell viability of HepG2 cells at different dose and time of action. b Effect of ECH on cell viability of Huh7 cells at different dose and time of action. c Effect of ECH concentration on cell colony formation of HepG2 cells at different dose and time of action. d Effect of ECH concentrations on cell colony formation of Huh7 cells at different dose and time of action. N = 6, means ± SD, VS the 0 group, **p < 0. 01, *** p < 0.001