Japan Approves First Human-Animal Embryo Experiments

July 26, 2019

(Nature) – A Japanese stem-cell scientist is the first to receive government support to create animal embryos that contain human cells and transplant them into surrogate animals since a ban on the practice was overturned earlier this year. Hiromitsu Nakauchi, who leads teams at the University of Tokyo and Stanford University in California, plans to grow human cells in mouse and rat embryos and then transplant those embryos into surrogate animals. Nakauchi’s ultimate goal is to produce animals with organs made of human cells that can, eventually, be transplanted into people.

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