title: The migration of hematopoietic progenitors from the fetal liver to the fetal bone marrow: lessons learned and possible clinical applications.
abstract: The ontogeny of hematopoietic stem cells (HSCs) is complex, with multiple sites of embryonic origin as well as several locations of expansion and maturation in the embryo and the adult. Hematopoietic progenitors (HPs) with diverse developmental potential are first found in the yolk sac, aorta-gonad-mesonephros region and placenta. These progenitors then colonize the fetal liver (FL), where they undergo expansion and maturation. HSCs from the FL colonize the fetal bone marrow (FBM), governed by a complex orchestration of transcription programs including migratory molecules with chemotactic activity, adhesion molecules, and molecules that modulate the extracellular matrix. Understanding the mechanisms that regulate the patterns of HSC migration between FL and FBM could improve the engraftment potential of embryonic stem cell-derived HPs, because these cells might display a migratory behavior more similar to early HPs than to adult HSCs. Understanding the changes in migratory behavior in the context of FL to FBM HSC migration could lead to new approaches in the treatment of blood malignancies. We will review the current knowledge in the field of FL to the FBM HSCs migration during development, focusing on changes in expression of molecules important for this process and exploring its clinical applications.
authors: Department of Molecular and Cell Biology, School of Natural Sciences, University of California, Merced, California 95343, USA.
authors: Jesús
authors: J
authors: Ciriza
authors: Heather
authors: H
authors: Thompson
authors: Raffi
authors: R
authors: Petrosian
authors: Jennifer O
authors: JO
authors: Manilay
authors: Marcos E
authors: ME
authors: García-Ojeda
mesh_terms: D001853:Bone Marrow / Q000196:embryology; D015815:Cell Adhesion Molecules / Q000378:metabolism; D002465:Cell Movement; D016207:Cytokines / Q000378:metabolism; D053595:Embryonic Stem Cells / Q000166:cytology* / Q000378:metabolism; D018380:Hematopoietic Stem Cell Transplantation / Q000379:methods; D006412:Hematopoietic Stem Cells / Q000166:cytology* / Q000378:metabolism; D006801:Humans; D008099:Liver / Q000166:cytology* / Q000196:embryology / Q000378:metabolism; D008954:Models, Biological
chemical_list: D015815:Cell Adhesion Molecules; D016207:Cytokines