Clues to human organ regeneration

A Dunedin scientist says stem cells which he has cloned from the base of deer antlers are providing clues which may one day make it possible to regenerate severed human limbs.

Deer antler is the only mammal organ that annually regenerates and AgResearch Invermay scientist Chunyi Li has isolated the cells that allow deer to re-grow new antlers. No other mammal can naturally regenerate any lost organ, but a 200kg red deer can produce as much as 30kg of antler in as little as three months.

Li told The Otago Daily Times he has shown that previously unrecognised stem-cells able to grow into specialised cell types - skin, nerves, blood vessels, fibrous tissue, catiliage and bone - control the process.

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