Figure 2.

Tumor volume and numbers in SKH1 wild-type or caspase-7 KO mice untreated or treated with SSL. (A) Average tumor volume and (B) tumor number per mouse. Mice were treated with SSL for 10 weeks and then monitored for a total of 25 weeks. Tumor volume and numbers were measured each week until 25 weeks. Tumors first appeared at 17 weeks. Data are shown as mean values ± SE. The asterisk indicates a significant increase in tumor volume and number (*P < 0.05; **P < 0.01) in caspase-7 KO mice compared to untreated SKH1 wild-type mice or mice treated with SSL. No tumors developed in untreated mice.