Salamander Discovery Could Lead to Human Limb Regeneration
Humans have always been fascinated with the salamander’s ability to regenerate lost limbs. Now scientists studying salamander genes have discovered that the process isn’t quite as complicated as once thought.
By tracking individual cells in genetically modified salamanders, researchers have found an unexpected explanation for their seemingly magical ability to regrow lost limbs.
Rather than having their cellular clocks fully reset and reverting to an embryonic state, cells in the salamanders’ stumps became slightly less mature versions of the cells they’d been before. The findings could inspire research into human tissue regeneration.
“The cells don’t have to step as far back as we thought they had to, in order to regenerate a complicated thing like a limb,” said study co-author Elly Tanaka, a Max Planck Institute cell biologist. “There’s a higher chance that human or mammalian cells can be induced into doing the same thing.”
Researchers are hopeful, but also aware that early experiments in replicating this cell process can lead to uncontrolled growth, meaning cancers. Link
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