April 19, 2016
(Nature) – At the Karolinska Institute in Stockholm, Fredrik Lanner is preparing to edit genes in human embryos. It’s the kind of research that sparked an international frenzy in April last year, when a Chinese team revealed that it had done the world’s first such experiments. But Lanner doesn’t expect his work, which will explore early human development, to cause such a fuss.A year of discussion about the ethics of embryo-editing research, and perhaps simply the passage of time, seems to have blunted its controversial edge — although such work remains subject to the same ethical anxieties that surround other reproductive-biology experiments. “At least in the scientific community, I sense more support for basic-research applications,” says Lanner, who gained approval for his experiments last June.