A daring effort is under way to create the first children whose DNA has been tailored using gene editing.
by Antonio Regalado November 25, 2018 https://www.technologyreview.com/s/612458/exclusive-chinese-scientists-are-creating-crispr-babies/ When Chinese researchers first edited the genes of a human embryo in a lab dish in 2015, it sparked global outcry and pleas from scientists not to make a baby using the technology, at least for the present. It was the invention of a powerful gene-editing tool, CRISPR, which is cheap and easy to deploy, that made the birth of humans genetically modified in an in vitro fertilization (IVF) center a theoretical possibility. Now, it appears it may already be happening. According to Chinese medical documents posted online this month (http://www.chictr.org.cn/showprojen.aspx?proj=32758), a team at the Southern University of Science and Technology, in Shenzhen, has been recruiting couples in an effort to create the first gene-edited babies. They planned to eliminate a gene called CCR5 in hopes of rendering the offspring resistant to HIV, smallpox, and cholera. The clinical trial documents describe a study in which CRISPR is employed to modify human embryos before they are transferred into women’s uteruses. It is unclear if any children have been born. The scientist behind the effort, Jiankui He, did not reply to a list of questions about whether the undertaking had produced a live birth. Reached by telephone, he declined to comment. However, data submitted as part of the trial listing shows that genetic tests have been carried out on fetuses as late as 24 weeks, or six months. It’s not known if those pregnancies were terminated, were carried to term, or are ongoing. The birth of the first genetically tailored humans would be a stunning medical achievement, for both He and China. But it will prove controversial, too. Where some see a new form of medicine that eliminates genetic disease, others see a slippery slope to enhancements, designer babies, and a new form of eugenics. “In this ever more competitive global pursuit of applications for gene editing, we hope to be a stand-out,” He and his team wrote in an ethics statement they submitted last year. They predicted their innovation “will surpass” the invention of in vitro fertilization, whose developer was awarded a Nobel Prize in 2010. (snip) Cheers, Stephen Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 _______________________________________________ Link mailing list [email protected] http://mailman.anu.edu.au/mailman/listinfo/link
