Thursday, February 05, 2009

No Murder Necessary

Another reason NOT to use embryonic stem-cells: you can retro-manufacture them.

German scientists have sent mouse stem cells back to their embryonic origin by introducing just a single gene, a finding that could eventually lead to simpler, safer ways of generating cells for human medicine.

...The German team took neural stem cells from the brains of mice and used a virus to introduce a gene called Oct4. The gene is one of the four genes used by groups at the University of Wisconsin-Madison and Kyoto University in Japan when they reprogrammed human skin cells. The German experiment found that in mice a single gene was all it took to transform the neural stem cells into the equivalent of embryonic stem cells


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