How did Dr. Cristina Sanchez kill cancer cells in vitro?

Dr. Cristina Sanchez used a compound from the cannabis plant, called JWH-133, to kill cancer cells in vitro. JWH-133 is a synthetic cannabinoid that binds to the same receptors as the active compounds in marijuana. In her study, Dr. Sanchez demonstrated that JWH-133 inhibited the growth of prostate cancer cells when applied to the cells in vitro. The compound was also shown to induce apoptosis in the cancer cells, which is the process of programmed cell death. Additionally, Dr. Sanchez's research indicated that JWH-133 had the ability to inhibit the growth of human tumor cells.