Figure 6. in vivo anti-tumor activity of BBD24. Nude mice were treated with BBD24 and/or cisplatin for 20 consecutive days. (A, B) Tumor volumes in control, cisplatin, BBD24 and BBD24+cisplatin groups. (C–F) Immunohistochemical staining of Cleaved-caspase-3, Ki-67 and PCNA in different groups. Results were expressed as means ± SD of three independent experiments. * P<0.05.