Epoxyeicosatrienoic acids enhance embryonic haematopoiesis and adult marrow engraftment

n in vivo imaging-based competitive transplant screen in zebrafish identifies epoxyeicosatrienoic acids as enhancers of haematopoietic stem and progenitor cell (HSPC) engraftment; these derivatives of arachidonic acid also promote zebrafish developmental HSPC specification through a PI(3)K-dependent AP-1 and runx1 transcriptional program and their pro-engraftment effect is conserved in mammals (indicating clinical potential).