Restricted intra-embryonic origin of bona fide hematopoietic stem cells in the chicken

Laurent Yvernogeau, Catherine Robin

Research output: Contribution to journal/periodicalArticleScientificpeer-review

Abstract

Hematopoietic stem cells (HSCs), which are responsible for blood cell production, are generated during embryonic development. Human and chicken embryos share features that position the chicken as a reliable and accessible alternative model to study developmental hematopoiesis. However, the existence of HSCs has never been formally proven in chicken embryos. Here, we have established a complete cartography and quantification of hematopoietic cells in the aorta during development. We demonstrate the existence of bona fide HSCs, originating from the chicken embryo aorta (and not the yolk sac, allantois or head), through an in vivo transplantation assay. Embryos transplanted in ovo with GFP embryonic tissues on the chorio-allantoic membrane provided multilineage reconstitution in adulthood. Historically, most breakthrough discoveries in the field of developmental hematopoiesis were first made in birds and later extended to mammals. Our study sheds new light on the avian model as a valuable system to study HSC production and regulation in vivo.

Original languageEnglish
Pages (from-to)2352-2363
Number of pages12
JournalDevelopment (Cambridge)
Volume144
Issue number13
DOIs
Publication statusPublished - 01 Jul 2017

Keywords

  • Animals
  • Aorta
  • B-Lymphocytes
  • Cell Lineage
  • Cell Proliferation
  • Cell Survival
  • Chick Embryo
  • Chickens
  • Chorioallantoic Membrane
  • Embryonic Development
  • Green Fluorescent Proteins
  • Hematopoiesis
  • Hematopoietic Stem Cells
  • Yolk Sac
  • Journal Article
  • Research Support, Non-U.S. Gov't

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