New guidelines for stem cell and embryo research from the ISSCR

The authors, some of whom are ISSCR affiliates involved in the production of the 2021 guidelines, provide an overview of topics that were updated in the guidelines (chimeric embryos, mitochondrial replacement techniques, stem cell-based embryo models). They make the case that relaxing research in these arenas has great potential for medicine science. To realize such benefits, they call for a reform of research oversight policies worldwide, within ethical acceptability, as the updated guidelines of ISSCR propose.