Scientists grew 'synthetic embryos' from mice cells without using sperm, eggs, or a womb.
The technology could be a starting point to grow organs from scratch, Jacob Hanna of Weizmann's Molecular Genetics Department, who headed the research team, said in a statement.
Still, this research makes this possibility a little more feasible, adding urgency to the ethical question, they said."The embryo is the best organ-making machine and the best 3D bioprinter – we tried to emulate what it does," said Hanna.grow mouse embryos outside of the womb, in glass containersBut those embryos had been taken directly from real mice and were fertilized.
That could be invaluable for science, because it could make huge amounts of synthetic embryos available for research without relying on lab animals. "Our next challenge is to understand how stem cells know what to do – how they self-assemble into organs and find their way to their assigned spots inside an embryo," said Hanna.James Briscoe, a group leader at the Francis Crick Institute in London not involved in the research"Now is a good time to consider the best legal and ethical framework to regulate research and use of human synthetic embryos and to update the current regulations," he said.
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