Figure 2. The luciferase activity in breast cancer cells.

The luciferase activity of breast cancer cells and their distribution after injection of cells into the tail vein of mice. Mice were treated with intraperitoneal injection of vehicle (A) or UBS109 at 5 or 15 mg/kg/body weight (B) or (C) once daily for 5 days per a week (from Monday through Friday) for approximately 5 weeks (n = 4/treatment regimen).