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Related Experiment Videos

Myb-induced transformation

L Wolff1

  • 1Laboratory of Cellular Oncology, National Cancer Institute, Bethesda, MD 20892-4255, USA. LWOLFF@helix.nih.gov

Critical Reviews in Oncogenesis
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

The c-myb protooncogene drives cancer by controlling cell death and proliferation. Viral activation of c-myb, through insertional mutagenesis or protein truncation, promotes hematopoietic neoplasms, warranting further investigation in human leukemia.

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Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • The c-myb protooncogene is involved in hematopoietic neoplasms.
  • c-myb regulates apoptosis and cellular proliferation, crucial for oncogenesis.
  • Retroviral insertional mutagenesis frequently targets c-myb.

Purpose of the Study:

  • To investigate the mechanisms of c-myb activation in oncogenesis.
  • To explore the role of c-myb in hematopoietic malignancies.
  • To establish the link between c-myb and human leukemia.

Main Methods:

  • Analysis of retroviral insertional mutagenesis targeting c-myb.
  • Studying mechanisms of c-myb activation, including constitutive expression and C-terminal truncation.
  • Investigating the oncogenic potential of v-Myb, a viral counterpart of c-Myb.

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Main Results:

  • Retroviruses commonly activate c-myb by providing constitutive expression.
  • C-terminal truncation of c-Myb enhances its stability and transactivation activity.
  • v-Myb's potent transforming ability results from deregulated expression, truncation, and DNA-binding domain mutations.

Conclusions:

  • c-myb plays a significant role in avian and murine myeloid and lymphoid neoplasms.
  • Mechanisms of c-myb activation include transcriptional control and protein modification.
  • The involvement of c-myb in human leukemia requires further investigation.