And cancer cells to basically determine that they have these blood vessels to basically ensure that they have these blood vessels next to them at all times so that they can receive the supply of glucose and then use that glucose in the highly effective process of glycolysis to produce those ATP molecules which allow them to actually grow and divide quickly. They also use this same mechanism. They release the Hypoxiainducing transcription factor that stimulates not only the expression of these enzymes and glucose transporters but also stimulates the growth of those blood vessels which can permeate into that tumor and around that tumor and that ensures that the tumor actually survives and those cancer cells actually survive and grow. So cancer cells use the same mechanism to actually increase the rate of tumor growth. So cancer cells depend on glucose for rapid growth and division. And this can be especially problematic for those cells down far away from blood vessels because again, the blood vessels actually bring those glucose molecules to those cells in the first place.