eLife assessment
This important study combines engineered mesenchymal stem cells together with mouse models of kidney injury to determine the ability of these cells to reduce kidney damage upon acute kidney injury. The evidence supporting the claims is solid, although the inclusion of more than one type of stem cell and the use of male mice which are more prone to acute kidney injury, would strengthen the study. This work will be of interest to both basic scientists and clinicians working on mechanisms of kidney injury and repair.