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Biological assays for cellular transformation

A D Cox1, C J Der

  • 1Department of Radiation Oncology, University of North Carolina at Chapel Hill 27599.

Methods in Enzymology
|January 1, 1994
PubMed
Summary
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Standard assays evaluate oncogene potential by assessing gene-induced growth alterations. However, these methods aren't exhaustive, and negative results don't rule out oncogene activity.

Area of Science:

  • Molecular Biology
  • Cancer Research
  • Cell Biology

Background:

  • Oncogenes drive characteristic growth alterations in cells.
  • Standard assays are widely used to assess the transforming potential of various genes, including kinases and transcription factors.

Purpose of the Study:

  • To review standard and specialized assays for evaluating the transforming potential of genes.
  • To compare the growth-promoting characteristics of genes using established assays.

Main Methods:

  • Utilizing standard assays to evaluate genes encoding tyrosine/serine/threonine kinases, GTP-binding proteins, and transcription factors.
  • Considering specialized assays with non-fibroblast cells for more relevant environments.
  • Incorporating assays for cell adhesion, growth on monolayers, invasion into matrices, and transgenic models.

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  • Employing biochemical assays, such as measuring transcriptional activation via oncogene-responsive elements.

    • Main Results:

    • Standard assays provide a comparative basis for gene properties but do not offer a complete evaluation.
    • Failure to detect growth-promoting activity in standard assays does not definitively exclude a gene's oncogenic potential.
    • Specialized and biochemical assays can complement biological studies for a more comprehensive assessment.

    Conclusions:

    • A combination of standard, specialized, and biochemical assays is necessary for a thorough evaluation of a gene's transforming potential.
    • The choice of recipient cells and assay type is crucial for accurate assessment.
    • Further research may involve more specific biochemical measures to complement biological findings.