Cancers satisfy their appetite by creating a diabetes-like state
Cancers feed on glucose by inhibiting glucose uptake by healthy cells - cancer science news

Cancer cells have been found to induce a diabetes-like state so that healthy cells take up less glucose, leaving more glucose available for the cancer cells and tumor growth, a new study in mice reports. They do this in two ways. First, tumor cells stimulate fat cells to produce more IGFBP1 protein. This makes healthy cells less sensitive to insulin, so that more insulin is required for glucose uptake. Second, cancers turn the production of insulin down. In part they do this through the gut. Mice with leukemia miss bacteroids in their intestines, which produce short-chain fatty acids that in turn feed the health of cells lining your gut. The gut cells will now stop the production of hormones called incretins that normally help to get glucose levels down after a meal. On top of this, tumors reduce the activity of serotonin, an essential molecule for the synthesis of insulin. Giving mice with leukemia short-chain fatty acids and serotonin prolongs their lives and reduces tumor growth, suggesting that it should be possible in the future to develop treatments that favor healthy cells, and disfavor cancer cells. 

Read the full story: University of Colorado – Anschutz Medical Campus
Scientific publication: Cancer Cell