(Cannabidiol (CBD) and Breast Cancer) "Our results, which were obtained in a clinically relevant animal model of ErbB2-positive breast cancer, suggest that these highly aggressive and low responsive tumors could be efficiently treated with nonpsychoactive CB2-selective agonists without affecting the surrounding healthy tissue."

Source

Caffarel, María M; Andradas, Clara; Mira, Emilia; Pérez-Gómez, Eduardo; Cerutti; Camilla; Moreno-Bueno, Gema; Flores, Juana; García-Realm, Isabel; Palacios, José; Mañes, Santos; Guzmán, Manuel; Sánchez, Cristina, "Cannabinoids reduce ErbB2-driven breast cancer progression through Akt inhibition," Molecular Cancer (London, United Kingdom: July 22, 2010), p. 1 and P. 8.
http://www.molecular-cancer.c…
http://www.ncbi.nlm.nih.gov/p…