Scientists have injected human stem cells (cells that can grow in different cells of the body) into monkey embryos.
Embryos were studied for up to 20 days.
Others, called embryos of mixed species, have been produced in the past, and human cells are attached to the embryos of sheep and pigs.
The team of scientists was led in 2017 by Professor Juan Carlos Ispiswa Belmont from the Salk Institute in the United States. Helped build the first human-pig hybrid.
Work can lead to severe shortages Transplantable organs, In addition to helping to understand more about Early human development, disease progression, and aging, He said.
“These chimerical approaches are very useful for advancing biomedical research not only in the early stages of life but also in later stages.”
He said the study, published in the journal Cell, meets current ethical and legal standards.
“Ultimately, we conducted these studies to understand and improve human health,” he said.
However, some scientists have expressed concern about the experiment, arguing that although the embryos in this case were destroyed within 20 days, others could try to continue the process.
They call for a public debate on the implications of creating chimes using both the human and non-human part.
Anna Smazdor, lecturer and researcher on biomedical ethics at the Norwich School of Medicine at the University of East Anglia, commented on the research.Significant ethical and legal challenges“.
They added: “The scientists responsible for this research claim that these chimeric embryos offer new opportunities because ‘we can’t do some kind of experiment on humans’. But whether these embryos are human or not is an open question.”
Julian Zouluscu of the University of Oxford said the research opens Pandora’s box for both human and non – human chimeras.
“These embryos were destroyed in 20 days of development, but only before the successful development of both human and non-human chimpanzees, perhaps as a source of human organs. This is one of the long-term goals of research,” Saulus added.
Sarah Norcross, director of the Progressive Educational Trust, said significant progress had been made in embryonic and stem cell research, which was equally beneficial, but “raised a clear need for” public discussion and discussion of issues and ethics and regulatory challenges.