Cancer pharmacoprevention: Targeting polyamine metabolism to manage risk factors for colon cancer Eugene W. Gerner‡,§1, Elizabeth Bruckheimer‡ and Alfred Cohen‡ From ‡Cancer Prevention Pharmaceuticals, Tucson, Arizona 85718 and the §Department of Cell and Molecular Medicine, University of Arizona, Tucson, Arizona 85711 ↵1 To whom correspondence should be addressed: Professor Emeritus (retired), Cancer Prevention Pharmaceuticals, 1760 E. River Rd., Tucson, AZ 85716.