Elucidation of the Phenotypic, Functional, and Molecular Topography of a Myeloerythroid Progenitor Cell Hierarchy

Cell Stem Cell. 2007 Oct 11;1(4):428-42. doi: 10.1016/j.stem.2007.07.005.

Abstract

The major myeloid blood cell lineages are generated from hematopoietic stem cells by differentiation through a series of increasingly committed progenitor cells. Precise characterization of intermediate progenitors is important for understanding fundamental differentiation processes and a variety of disease states, including leukemia. Here, we evaluated the functional in vitro and in vivo potentials of a range of prospectively isolated myeloid precursors with differential expression of CD150, Endoglin, and CD41. Our studies revealed a hierarchy of myeloerythroid progenitors with distinct lineage potentials. The global gene expression signatures of these subsets were consistent with their functional capacities, and hierarchical clustering analysis suggested likely lineage relationships. These studies provide valuable tools for understanding myeloid lineage commitment, including isolation of an early erythroid-restricted precursor, and add to existing models of hematopoietic differentiation by suggesting that progenitors of the innate and adaptive immune system can separate late, following the divergence of megakaryocytic/erythroid potential.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antigens, CD / genetics
  • Antigens, CD / metabolism
  • Blood Platelets / cytology
  • Cell Compartmentation
  • Cell Differentiation
  • Cell Lineage*
  • Cell Proliferation
  • Cell Separation
  • Clone Cells
  • Endoglin
  • Erythroid Precursor Cells / cytology*
  • Gene Expression Profiling
  • Gene Expression Regulation
  • Genome
  • Granulocytes / cytology
  • Intracellular Signaling Peptides and Proteins / genetics
  • Intracellular Signaling Peptides and Proteins / metabolism
  • Mice
  • Mice, Inbred C57BL
  • Myeloid Progenitor Cells / cytology*
  • Phenotype
  • Polymerase Chain Reaction
  • Receptors, Cell Surface / genetics
  • Receptors, Cell Surface / metabolism
  • Signaling Lymphocytic Activation Molecule Family Member 1

Substances

  • Antigens, CD
  • Endoglin
  • Eng protein, mouse
  • Intracellular Signaling Peptides and Proteins
  • Receptors, Cell Surface
  • Signaling Lymphocytic Activation Molecule Family Member 1

Associated data

  • GEO/GSE8407