New Recipe for Powerful Stem Cells Promises Greater Insight: Scientific American

New Recipe for Powerful Stem Cells Promises Greater Insight: Scientific American: "A Massachusetts company announced today that it has grown large numbers of a rare type of human embryonic stem cell that can transform into blood and blood vessels. When injected into mice, the cells congregated around damaged blood vessels in the eye, heart and limbs, where they seemed to help rebuild injured tissue, according to a report published online today. The company says it plans to request approval by the end of next year to conduct human trials of the cells, called hemangioblasts."