Japanese researchers have coaxed mouse stem cells into becoming viable eggs that produce healthy offspring. The work provides a powerful tool to study basic elements of mammalian development and infertility that have long been shrouded in mystery.
People have been trying to make sex cells from embryonic stem cells and from pluripotent cells for years, says Evelyn Telfer, a reproductive biologist at the University of Edinburgh, UK. “They’ve done it — and they’ve done it really well.”
[Read more at Nature // October 4, 2012]