Researchers direct mouse skin cells to act like embryonic stem cells, giving them the ability to become any type of tissue.
"Genetically modified mouse skin cells that act like embryonic stem cells (ES cells) could show researchers how to make versatile human stem cells from a simple skin biopsy without having to negotiate the ethical minefield of working with human eggs and early embryos."
Read more @ http://www.nature.com/stemcells/2007/0706/070607/full/stemcells.2007.6.html
