Mice that had been genetically engineered to develop tumours failed to do so. Instead, the animals grew up to be huge and very hairy. And when the tips of the pups’ toes were clipped off in a routine tagging procedure, they often grew back.
Resetting cells using embryonic genes has been seen before, most prominently in the creation of cells known as induced pluripotent stem cells, which acquire an embryonic-like state after a suite of genes is activated. But the latest study reveals that such de-ageing changes can be made not just in cultured cells, but in developed tissues within an organism. It suggests that it might be possible to make older tissues behave more like young ones, which are much better at repairing damage. In mammalian fetuses, for example, even deep wounds can heal without scarring.
Read the full, original story here: Fountain-of-youth gene unleashes healing power