“It has been shown that leukemia and glioma cells are sensitive to cannabidiol (CBD)-induced apoptosis (programmed cell death)….the cellular events and sensitivity to CBD-induced apoptosis between murine thymocytes and EL-4 thymoma cells were compared. Cannabidiol markedly induced apoptosis in a time- and concentration-related manner in both cells… The results demonstrated that both thymocytes and EL-4 thymoma cells were susceptible to CBD-induced apoptosis…”

http://www.ncbi.nlm.nih.gov/pubmed/18387516