Word: ipse
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Dr. Robert Lanza, chief scientific officer at Advanced Cell Technology (ACT), reported today in the journal Cell that his team has created stem cells using human skin cells and four proteins. The innovation builds on the breakthrough discovery in 2006 by Shinya Yamanaka, who similarly coaxed human skin cells to...
Until now, no one has been able to create iPS cells without using viruses and genes. But Lanza and his team found a way around both: the researchers isolated the proteins made by the same genes Yamanaka used and "tagged" them with a message that allowed the proteins to slip...
September Konrad Hochedlinger at Harvard creates iPS cells in mice using the common-cold virus rather than retrovirus vectors - an important step in making the technology safer for human use
October Melton's team makes human iPS cells by replacing two of the four genes, known to cause cancer, with chemicals. All four must be swapped out before iPS-generated cells can be transplanted into people
October Yamanaka creates mouse iPS cells using safer plasmids of DNA instead of retrovirus vectors