Tumor-Starving Protein Identified By Karen Pallarito HealthDay Reporter FRIDAY, June 18 (HealthDayNews) -- Researchers in Colorado say they have identified a protein that thwarts the growth of new blood vessels that feed and enlarge tumors. The protein, called fibulin-5, occurs naturally in the body, but researchers say a slightly altered version proved even more effective in arresting blood vessel growth. The protein works by choking off the nutrient and oxygen supply to tumors, preventing the cancer from growing and spreading to other parts of the body. Researchers believe it could one day be developed as a drug to treat cancer...