CD24 and acute kidney injury: In their article “WNT/β-Catenin Signaling Is Required for Integration of CD24+ Renal Progenitor Cells into Glycerol-Damaged Adult Renal Tubules,” Z. Zhang et al. described how the endogenous canonical β-catenin/TCF pathway is reactivated during recovery from AKI and is required for the engraftment of exogenous CD24+ embryonic renal progenitor cells into damaged tubular areas upon injury.