In light of the recent news about cell-phones causing brain cancer this report is especially relevant: Scientists have made a remarkable discovery in the treatment of cancers, specifically, but not solely, brain cancer.
It had been thought that all the cells in a tumor were identical, but it has been discovered that the tumor is actually fed by stem cells that reside in the tumor near blood vessels from which they derive their nourishment. Drugs that attack the blood vessels cause the stem cells to die off which, it is thought, cause the tumor to whither.
There's a story and video here.
RLC
