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Transformation by the human adenoviruses.

N C Jones1

  • 1Laboratory of Gene Regulation, Imperial Cancer Research Fund, London, UK.

Seminars in Cancer Biology
|December 1, 1990
PubMed
Summary

Human adenoviruses use E1A and E1B genes for oncogenic transformation. These viral proteins interact with cellular regulators like Rb and p53 to control cell growth and transformation.

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Area of Science:

  • Molecular biology
  • Virology
  • Cell biology

Background:

  • Oncogenic transformation by human adenoviruses is mediated by the E1A and E1B genes.
  • Recent research has detailed the functions and interactions of E1A and E1B gene products.

Purpose of the Study:

  • To elucidate the mechanisms by which E1A and E1B proteins contribute to oncogenic transformation.
  • To understand the interactions between viral oncoproteins and cellular regulatory proteins.

Main Methods:

  • Genetic analysis
  • Immunological techniques
  • Biochemical characterization of viral and cellular proteins

Main Results:

  • E1A protein can immortalize cells and cooperate with E1B or other oncogenes for morphological transformation.
  • E1A's functions are linked to distinct protein domains that interact with cellular proteins, including the Rb cell cycle regulator.
  • E1B proteins bind to cellular proteins, notably p53, a known growth suppressor.

Conclusions:

  • E1A and E1B proteins mediate viral oncogenesis by interacting with and modulating key cellular regulators.
  • These interactions with proteins like Rb and p53 are crucial for controlling cell cycle and promoting transformation.

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