Skin Cell to Egg Cell to Mouse Pup: Researchers Hail Fertility Breakthrough

Japanese researchers announced Monday that they used stem cells to create viable mouse egg cells entirely in the lab.

Scientists from the University of Kyoto coaxed skin cells into egg cells, which they then fertilized and implanted into female mice to successfully breed a new generation of mice. The technique had a low success rate, but it’s the first time lab-grown egg cells have been used to produce healthy offspring.

Previously, members of the same team had created mature egg cells

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