Fig. 2

Histological analysis of tumor samples after BP3B administration. After sacrificing the mice, colon tumor tissues from vehicle (a and e), oxaliplatin (5 mg/kg, b and f), low dose (250 mg/kg, c and g) and high dose (500 mg/kg, d and h)-treated group were fixed and checked with hematoxylin/eosin-staining. Cell nuclei were stained with hematoxylin (purple). Red arrows indicate the representative cells with apoptotic characteristics and cell death. Scale bars are 50 μm