April 23, 2021 (LifeSiteNews) — In an alarming new development in biological experimentation, scientists have created a hybrid embryo comprised of human and monkey cells.
“Interspecies chimera formation with human pluripotent stem cells (hPSCs) represents a necessary alternative to evaluate hPSC pluripotency in vivo and might constitute a promising strategy for various regenerative medicine applications, including the generation of organs and tissues for transplantation,” reads the summary of the paper, published in the journal Cell. “We demonstrated that hPSCs survived, proliferated, and generated several peri- and early post-implantation cell lineages inside monkey embryos.”
“Using hPSCs to generate human-animal chimeric embryos provides an experimental paradigm for studying early human development and holds great potential for diverse applications in regenerative medicine as well as for producing human tissues and organs for replacement therapies,” the researchers argue.
Defenders of the research argue that it’s necessary to learn how to grow viable human organs to save the thousands who die annually on waiting lists for organ transplants, and growing them inside pig and sheep embryos has thus far been ineffective. But NPR quotes several scientists who still have ethical qualms.
“My first question is: Why?” said Kirstin Matthews of Rice University’s Baker Institute. “I think the
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