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Related Experiment Videos

Developmental expression of the vav protooncogene

X R Bustelo1, S D Rubin, K L Suen

  • 1Department of Molecular Biology, Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, New Jersey 08543-4000.

Cell Growth & Differentiation : the Molecular Biology Journal of the American Association for Cancer Research
|April 1, 1993
PubMed
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The vav protooncogene is crucial for mouse development, particularly in hematopoietic tissues like the spleen and thymus. Its expression patterns highlight its role in regulating blood cell development and function.

Area of Science:

  • Developmental Biology
  • Hematopoiesis
  • Oncogene Research

Background:

  • The vav protooncogene is a key regulator in cellular signaling pathways.
  • Understanding its expression during development is vital for comprehending hematopoietic system formation.

Purpose of the Study:

  • To investigate the spatio-temporal expression of the vav protooncogene during mouse embryogenesis and in adult tissues.
  • To elucidate the role of vav in the development and maintenance of the hematopoietic system.

Main Methods:

  • RNase protection assays
  • In situ hybridization
  • Immunocytochemical analysis
  • Analysis of purified lymphocytes and bone marrow cells

Main Results:

Related Experiment Videos

  • Vav gene transcripts were detected early in embryonic blood-forming islands and fetal liver megakaryocytes.
  • Expression shifted to thymus and spleen during hematopoietic diversification, and was present in newborn hematopoietic tissues and adult spleen, thymus, lymph nodes, and bone marrow.
  • Vav expression was observed in the ameloblastic cell layer during late tooth morphogenesis and showed distinct localization within spleen and thymus tissues.

Conclusions:

  • The vav protooncogene plays a significant role in the development and maintenance of the hematopoietic system.
  • Its expression patterns suggest involvement in crucial signal transduction pathways regulating hematopoiesis.