title: Fetal to Adult Hematopoiesis with the "Flk" of a Switch.
abstract: Blood development relies on discrete stem and progenitor cell populations with unclear lineage relationships and distinct functional characteristics that change during ontogeny. In this issue of Cell Stem Cell, Beaudin et al. (2016) identify a hematopoietic stem cell population with fetal characteristics that is developmentally restricted yet capable of long-term multi-lineage reconstitution upon transplantation into adult recipients.
authors.affiliation: Division of Molecular Hematology, Department of Laboratory Medicine, Lund Stem Cell Center, Faculty of Medicine, Lund University, 223 62 Lund, Sweden.
authors.forename: Stijn
authors.initials: S
authors.lastname: Vanhee
authors.affiliation: Division of Molecular Hematology, Department of Laboratory Medicine, Lund Stem Cell Center, Faculty of Medicine, Lund University, 223 62 Lund, Sweden. Electronic address: joan.yuan@med.lu.se.
authors.forename: Joan
authors.initials: J
authors.lastname: Yuan
mesh_terms: D005312:Fetal Blood; D005333:Fetus; D006410:Hematopoiesis; D018380:Hematopoietic Stem Cell Transplantation; D006412:Hematopoietic Stem Cells