Joyce A. Shelton, Ph.D. Professor of Biology, Trinity International University Guest Column

Recent news announcements proclaimed, with both excitement and alarm, that Tan and colleagues, scientists from China and the US, had successfully produced human-monkey hybrid embryos. (1, 2) The hybrids (also termed chimeras) were made by injecting human pluripotent stem cells from an induced pluripotent stem cell line into 132 early- stage monkey embryos. Human pluripotent stem cells have the capacity to develop into a range of tissues and cell types which ultimately form all the structures of the human body including the brain and reproductive cells (sperm and egg). (3) In ...read more