The approaching era of the tumor suppressor genes

G Klein1

  • 1Department of Tumor Biology, Karolinska Institutet, Stockholm, Sweden.

Science (New York, N.Y.)
|December 11, 1987
PubMed

Insights

Tumor suppressor genes, which counteract cancer-causing oncogenes, are diverse and identified through various cellular and genetic methods. Studying both gene types may reveal shared functions in cancer development.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cancer Research

Background:

  • Tumorigenic phenotype is regulated by specific genes.
  • Oncogenes promote tumor growth.
  • Mechanisms for inhibiting tumor formation are being elucidated.

Purpose of the Study:

  • To identify genes that inhibit the expression of the tumorigenic phenotype.
  • To explore the diversity and potential functions of tumor suppressor genes.

Main Methods:

  • Cell fusion of normal and malignant cells.
  • Induction of terminal differentiation in malignant cell lineages.
  • Analysis of "recessive cancer genes" and regulatory sequences near oncogenes.
  • Inhibition of tumor growth using normal cell products.

Main Results:

  • Detection of genes capable of suppressing tumor cell characteristics.
  • Identification of multiple approaches to discovering tumor suppressor genes.
  • Anticipation of significant diversity within tumor suppressor genes.

Conclusions:

  • Tumor suppressor genes are crucial in cancer research and exhibit considerable diversity.
  • Further investigation into both tumor suppressor genes and oncogenes may uncover interrelated functional properties and therapeutic targets.

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Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
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