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Vascular Endothelial Growth Factor (VEGF)
Vascular Endothelial Growth Factor (VEGF) stimulates the growth of blood vessels. The uncontrolled growth of cancer cells is legendary. But this sort of growth requires a lot of blood flow to the cell area. If the blood vessel growth can be restrained, then, in theory, so can cancer growth. (PDB reference - 1FLT – growth factor)