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November 18, 2006
Limb regeneration in chicken embryos successful
They then performed the key experiment, successfully testing the ability of an excitatory factor to produce limb regeneration in chick embryos. "The signal restarted the process, and genes that were involved in the initial development of the limb were turned back on," Belmonte says. "It is simply amazing."
The procedure was tricky, however. Belmonte noted that if Wnt signaling is activated for too long of a period in these animals, cancer results. "This has to be done in a controlled way, with just a few cells for a specific amount of time," he says. "The fact is that this pathway is involved in cell proliferation, whether it is to generate or regenerate limbs, control stem cells, or produce cancer."
Scientist regrow chicken wing | Science Blog
Posted by thdyck on November 18, 2006
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