Fig. 4: Betulin synergizes Sorafenib’s effect on HCC s.c. tumor growth.

a MHCC97-H cells were injected into nude mice subcutaneously. At day 6, mice started receiving vehicle control, or the indicated concentrations of Sorafenib, or 2 mg/kg Betulin or the indicated concentration of Sorafenib + 2 mg/kg Betulin orally every other day 10 times. At day 21 post treatment, mice were killed and tumors were obtained (N = 10). b Quantitative results of tumor volume and tumor weight from a