Weapon-X Mice
Bob Vila's Hammer writes "New Scientist has this article about a new breed of mice created in a lab. They have the ability to heal wounds very effectively as they have been genetically engineered to produce large amounts of a protein called angiopoietin-related growth factor. This AGF was found to be in high concentrations at the site of wounds and is expecting further study to ascertain its full potential use in treatments for skin disorders and diseases in humans."
I would be willing to bet that scarring is minimal (with small injuries) as scar tissue is different than normal skin. This could potentially be a very lucrative drug target and I'll bet that big pharma will be doing some studies of their own soon. It'll be interesting to see what the result of the knockout study is...my bet is that it's embryonic lethal (loss of the gene during embryonic development causes the fetal mice to be non-viable).