stem cells Courtesy of Christina Tu – Sue and Bill Gross Stem Cell Research Center, UC Irvine

Stem cells (green) might someday be used to treat cancer, Parkinson’s and spinal cord injuries. Credit@Christina Tu/Sue & Bill Gross/Stem Cell Research Center

Stem cells (green) might someday be used to treat cancer, Parkinson’s and spinal cord injuries. Credit@Christina Tu/Sue & Bill Gross/Stem Cell Research Center