Restricting a Key Cellular Nutrient Could Slow Tumor Growth

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Remove tumor cells from a living organism and place them in a dish, and they will multiply even faster than before. The mystery of why this is has long stumped cancer researchers, though many have simply focused on the mutations and chains of molecular reactions that could prompt such a disparity. Now, a group of MIT researchers suggests that the growth limitations in live organisms may stem from a different source: the cell’s environment. 

More specifically, they found that the amino acid aspartate serves as a key nutrient needed for the “proliferation” or rapid duplication of cancer cells when oxygen is not freely available. Read more. . .