Representative Western blot analysis of Rap1A in (a) liver tissues, (b) kidney tissues, (c) heart tissues, (d) adrenal gland tumors, and (e) mesenteric, liver, and thoracic tumors of control and treated mice. Control mice in part e are indicated by C and treated mice in part e are indicated by a T. The Rap1A antibody detects the unprenylated form of Rap1A as indicated by the positive control 10 μM lovastatin treatment in luciferase-expressing 22Rv1 cells