Elie Dolgin | Mar 25, 2009 | 3 min read
Researchers are one step closer to reprogramming stem cells that are safe for use in the clinic with a new virus-free method for deriving human induced pluripotent stem (iPS) cells that doesn't rely on integrating foreign DNA, according to a linkurl:study;http://www.sciencemag.org/cgi/content/abstract/1172482 published online today in __Science__. Skin cells induced to a pluripotent stateImage: Junying Yu / UW-MadisonSince these cells' genomes have never been genetically modified, they provide