Home / Top Story / Scientists Create First Human-Monkey Embryos That Could Potentially Produce Organs for Transplants

Scientists Create First Human-Monkey Embryos That Could Potentially Produce Organs for Transplants




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Scientists have successfully created the first embryos containing both human and monkey cells, an important step in helping researchers find ways to produce organs for transplants.

The results of the groundbreaking experiment, published Thursday in the journal Cell, describe the first mixed-species embryos known as chimeras.

The research team in China was led by Juan Carlos Izpisua Belmonte, who has previously experimented with human and pig embryos. The team injected 25 human stem cells into the embryos of macaque monkeys.

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The researchers were able to detect human cells growing in 132 of the embryos after one day. They were able to study the embryos for 20 days, giving researchers enough time to learn about how animal and human cells communicate.



The part-human, part-monkey embryos were kept alive for 20 days, giving researchers enough time to learn about how animal and human cells communicate


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The part-human, part-monkey embryos were kept alive for 20 days, giving researchers enough time to learn about how animal and human cells communicate

“This knowledge will allow us to go back now and try to re-engineer these pathways that are successful for allowing appropriate development of human cells in these other animals,” Belmonte told NPR. “We are very, very excited.”

“Our goal is not to generate any new organism, any monster. And we are not doing anything like that. We are trying to understand how cells from different organisms communicate with one another,” added Belmonte.



a close up of a person on the machine: Getty Images


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The study was done in part to find new ways to produce organs for people who need transplants, as the “demand for that is much higher than the supply,” Belmonte explained.

Insoo Hyun, a bioethicist at Case Western Reserve University and Harvard University, told NPR that thousands of people die every year in the United States waiting to receive an organ transplant.

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Though groundbreaking, the research also sparks ethical concerns among many scientists.

According to NPR, scientists said the biggest concern is that someone could use this research to attempt to make a baby out of an embryo in this way.

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Others are concerned that using human cells in this manner could produce animals with human sperm or eggs.

However, Belmonte said his team consulted with bioethicists and has no intentions of trying to create animals with hybrid monkey-human embryos.



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