**2.7 Anti-cancer activity**

Animals bearing implanted liver tumors were intravenously given CPX1, CPX2 and free DOX at a dose of 10 mg DOX/kg body weight every two days from day 5 after the allograft model establishment. All tumors were separated, weighed and sectioned for pathological analyze on day 21. For the calculation of survives, testing animals bearing tumors were divided into 4 group, 10 animals each. CPX1 and CPX2 at a dose of 10 mg DOX/kg body weight were given intravenously every two days with free doxorubicin and saline as controls.
