Parallel experiments were performed testing the effect of Δ9-THC on human brain cancer cells (glioblastoma multiforme, or GBM) and also on normal brain cells. Putting this herbal compound through the same tests that a new chemotherapeutic agent would go through revealed a potent and remarkably specific anti-cancer effect. Both types of cells were treated with the same concentration of Δ9-THC but after 20 hours only the cancer cells died. Cell death is seen in the lower right panel as cells shrinking to inanimate white spheres. For more information about this project, click to LEARN MORE.