Newt protein may offer clues for human regeneration

Scientists have found a key protein that helps newts regrow severed limbs and which may guide future research into human regenerative medicine.

New research by a British team published on Thursday shows that a protein called nAG, secreted by nerve and skin cells, plays a central role in producing a clump of immature cells, known as a blastema, which regrows the missing part.

Anoop Kumar and colleagues from University College London (UCL), writing in the journal Science, said the finding "may hold promise for future efforts to promote limb regeneration in mammals."

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