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Avian models in developmental biology

F Dieterlen-Lièvre1

  • 1Institut d'Embryologíe cellulaire et moléculaire du CNRS et du Collège de France.

Poultry Science
|January 1, 1997
PubMed
Summary

Chicks and quail embryos create chimeras to study cell development. This research reviews how these avian embryo models reveal hematopoietic and endothelial lineage development, with implications for human and mouse studies.

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Area of Science:

  • Developmental biology
  • Experimental embryology
  • Cell lineage tracing

Background:

  • Avian embryos are ideal for experimental manipulation.
  • Le Douarin's chimera technique (chick-quail chimeras) is a key method.
  • Cell tracking relies on quail cell nuclei staining or specific monoclonal antibodies.

Purpose of the Study:

  • To review the ontogeny of hematopoietic and endothelial lineages using avian chimeras.
  • To highlight homologies between avian, mouse, and human embryonic development.
  • To explore future possibilities using retroviral somatic transgenesis in avian embryos.

Main Methods:

  • Creation of avian chimeras through heterotopic or orthotopic rudiment exchanges.
  • Identification of quail cell nuclei for DNA staining.
  • Application of lineage-specific monoclonal antibodies for cell tracing.

Main Results:

  • Avian chimeras effectively elucidate the developmental pathways of hematopoietic and endothelial lineages.
  • Established homologies between avian embryo development and that of mouse and human embryos.
  • Demonstrated the utility of established techniques for studying cell migration and fate.

Conclusions:

  • Avian chimeras are powerful tools for understanding fundamental developmental processes.
  • The study provides insights into conserved developmental mechanisms across species.
  • Retroviral somatic transgenesis presents a promising avenue for future avian embryo research.

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