Stem Cells: November 2007 Archives
Dr. M. William Lensch works at The Daley Lab and he's answering questions about stem cells via New York Times here.
All they had to do, the scientists said, was add four genes. The genes reprogrammed the chromosomes of the skin cells, making the cells into blank slates that should be able to turn into any of the 220 cell types of the human body, be it heart, brain, blood or bone. Until now, the only way to get such human universal cells was to pluck them from a human embryo several days after fertilization, destroying the embryo in the process.
More via The New York Times
