Evidence Is Mounting That Gene-Editing Human Embryos Can Have Destructive Side Effects

Errors made while editing could be passed on to future generations

In June, I reported on findings posted online by the lab of Kathy Niakan, PhD, a developmental biologist in London, which showed that the gene-editing tool CRISPR could make large, accidental edits when used in human embryos.

The paper from Niakan’s lab has yet to be peer reviewed, but the results were significant enough to catch the attention of…