Researchers of the University of Wisconsin found that CB1 and CB2 receptors are present in higher concentration in cancer cells of the prostate than in normal prostate cells. Treatment with a cannabinoid (WIN55,212-2) resulted in a dose-dependent inhibition of cell growth and induction of apoptosis in cancer cells.

Researchers also noted further anti-cancer effects in the cells. They note that cannabinoids "could be developed as novel therapeutic agents for the treatment of prostate cancer."

http://www.cannabis-med.org/english...

Source: Sarfaraz S, et al. Cancer Res 2005;65(5):1635-4