Word: stemness
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...current reliance on viruses renders the stem cell lines unsafe for transplantation because the process genetically modifies the reprogrammed cells. But Eggan predicted that researchers would soon fix this shortcoming with a process that instead uses chemicals to reprogram cells...
This method takes regular human cells—in this case skin cells—and uses viruses to reprogram them into cells that can develop into any kind of human tissue, in theory providing all the benefits of embryonic stem cells...
Both scientists repeatedly said that research on therapeutic cloning should not be abandoned, in large part because they said it was necessary to test the utility of reprogrammed cells against an embryonic stem cell bench mark...
...need to compare these cells we've generated to the gold-standard cells we've generated from human embryonic stem cells," Eggan said. "Until we can do that, we won't have complete confidence...
Despite their insistence, the breakthrough and continuing difficulty in getting the egg cells required for therapeutic cloning suggests that reprogramming may provide greater hope for stem cell therapies...