Figure 9: AO/PI staining of 3D hypatocyte cultures after in vitro drug (in middle concentration: AP 400 µg/L, 5-FU 50 µg/ml, matrine 0.15 mg/ml) medication for 4 days. (a) is the control group and (b) is a magnification of (a). (c) (e) (g) are respectively the AP group, the 5-FU group and the matrine group. (d) (f) (h) are their magnifications