A Lineage of Myeloid Cells Independent of Myb and Hematopoietic Stem Cells

Christian Schulz, Elisa Gomez Perdiguero, Laurent Chorro, Heather Szabo-Rogers, Nicolas Cagnard, Katrin Kierdorf, Marco Prinz, Bishan Wu, Sten Eirik W Jacobsen, Jeffrey W Pollard, Jon Frampton, Karen J Liu, Frederic Geissmann

Research output: Contribution to journalArticlepeer-review

Abstract

Macrophages and dendritic cells (DCs) are key components of cellular immunity and are thought to originate and renew from hematopoietic stem cells (HSCs). However, some macrophages develop in the embryo before the appearance of definitive HSCs. We thus reinvestigated macrophage development. We found that the transcription factor Myb was required for development of HSCs and all CD11b(high) monocytes and macrophages, but was dispensable for yolk sac (YS) macrophages and for the development of YS-derived F4/80(bright) macrophages in several tissues, such as liver Kupffer cells, epidermal Langerhans cells, and microglia--cell populations that all can persist in adult mice independently of HSCs. These results define a lineage of tissue macrophages that derive from the YS and are genetically distinct from HSC progeny.
Original languageEnglish
Pages (from-to)86-90
Number of pages5
JournalScience
Volume336
Issue number6077
DOIs
Publication statusPublished - 6 Apr 2012

Keywords

  • Animals
  • Cell Lineage
  • Cell Proliferation
  • Chick Embryo
  • Dendritic Cells
  • Embryo, Mammalian
  • Gene Deletion
  • Gene Expression Regulation, Developmental
  • Genes, myb
  • Hematopoietic Stem Cells
  • Kupffer Cells
  • Langerhans Cells
  • Liver
  • Macrophages
  • Mice
  • Microglia
  • Myeloid Cells
  • Myelopoiesis
  • Proto-Oncogene Proteins
  • Proto-Oncogene Proteins c-myb
  • Trans-Activators
  • Yolk Sac

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