Word: proteins
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...team of researchers at Boston's Children's Hospital announced a significant victory in the fight against cancer last week with the discovery that a protein produced by cancer cells inhibits the growth of secondary tumors...
...team, which included Medical School Professor of Anatomy and Cellular Biology Dr. Judah M. Folkman, found that a fragment of the protein plasminogen prevents the growth of blood vessels around secondary tumors called metastases...
...significance of Folkman's finding lies in the protein's ability to inhibit angiogenesis (blood vessel growth), said Noel Bouck, a professor of microbiology and immunology at Northwestern University Medical School. "In order to grow, tumors must produce new blood vessels," she said...
...very safe, because it is really just a protein meal," said Professor of Medicine Dr. Charles B. Carpenter, an immunogeneticist at Harvard Medical School...
Treatment to stop the growth of malignant tumors may come from a protein in the tumors themselves, researchers have found. Scientists at the Children's Hospital discovered that angiostatin -- a protein produced by large, growing tumors -- inhibits the growth of tiny secondary tumors that spread through the bloodstream and often lodge in vital organs such as the lungs, liver and brain. While the study's authors caution that this isn't a cure for cancer, they're optimistic that the protein will someday be used to slow or stop the growth of cancerous tumors...