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Related Experiment Videos

Transformation by v-Myb.

J S Lipsick1, D M Wang

  • 1Department of Pathology, Stanford University School of Medicine, California 94305-5324, USA.

Oncogene
|June 23, 1999
PubMed
Summary
This summary is machine-generated.

The avian myeloblastosis virus (AMV) v-myb oncogene uniquely causes acute leukemia and transforms only hematopoietic cells. Its discovery advanced cancer research by demonstrating oncogene diversity and providing a model for retrovirus studies.

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Area of Science:

  • Oncogenomics
  • Virology
  • Cancer Research History

Background:

  • The avian myeloblastosis virus (AMV) causes acute leukemia in chickens, a disease model for human acute myelogenous leukemia.
  • AMV's unique oncogene, v-myb, transforms only hematopoietic cells, distinguishing it from other oncogenic viruses like Rous sarcoma virus (RSV).
  • Historically, AMV served as a crucial prototypic retrovirus for studying viral assembly and producing reverse transcriptase.

Purpose of the Study:

  • To investigate the unique oncogenic properties of the v-myb gene in avian myeloblastosis virus (AMV).
  • To understand the cellular origin and viral integration of the v-myb oncogene.
  • To compare the genetic makeup of AMV with other avian leukemia viruses, such as E26 virus.

Main Methods:

  • Analysis of viral oncogenes in acute leukemia viruses using techniques similar to those used for v-src.

Related Experiment Videos

  • Molecular characterization of the AMV genome to identify sequences of cellular origin.
  • Comparative genomic analysis of AMV and E26 virus.

    • Main Results:

    • The v-myb oncogene in AMV was identified as a sequence of cellular origin, replacing most of the retroviral env gene.
    • The v-myb oncogene sequences were found to be shared between AMV and E26 leukemia virus.
    • E26 virus possesses a unique additional cellular sequence, ets, not found in other acutely transforming retroviruses.

    Conclusions:

    • The v-myb oncogene's cellular origin and specific tropism for hematopoietic cells highlight the diversity of oncogenic mechanisms.
    • Comparative analysis reveals shared and unique genetic elements among avian leukemia viruses, contributing to understanding their oncogenic potential.
    • AMV and E26 virus represent distinct but related models for studying viral oncogenesis and hematopoietic cell transformation.