Hiromitsu Nakauchi—director of the Center for Stem Cell Biology and Regenerative Medicine at the University of Tokyo and team leader at Stanford’s Nakauchi Lab—is the first to receive approval for the questionable experiments which will attempt to grow human cells in rat and mouse embryos before being brought to term in a surrogate animal.
Despite many feeling that such studies are the equivalent of playing God, scientists say that the objective is far from sinister. It’s theorized that developing animals with organs constructed from human cells will create organs that can then be used for transplants in humans, cutting the long organ donation waitlists.
“We don’t expect to create human organs immediately, but this allows us to advance our research based upon the know-how we have gained up to this point,” Nakauchi told the Asahi Shimbun newspaper.
Scientists in Japan have been allowed to research the hybrid embryos for some time but were restricted from going past a 14-day growth period. However, in March that policy changed when Japan’s education and science ministry announced that such creations could now be brought to full term.
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