[(Proto)-oncogenes, cellular growth and development]

D Morello1

  • 1Unité de Génétique des Mammifères, Institut Pasteur, Paris.

Insights

Oncogenes, genes regulating cell growth, can cause cancer. Studying cellular oncogenes (c-onc) and viral oncogenes (v-onc) reveals their role in normal development and malignant transformation.

Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Biology

Context:

  • Cellular processes are tightly regulated by specific genes.
  • Alterations in these genes can lead to uncontrolled cell growth and cancer.
  • Oncogenes, including cellular (c-onc) and viral (v-onc) types, are key players in this process.

Purpose:

  • To explore the dual role of oncogenes in normal cell functions and malignant transformation.
  • To understand how proto-oncogenes contribute to cell proliferation and differentiation.
  • To analyze the mechanisms by which oncogene alterations drive cancer development.

Summary:

  • Oncogenes are genes that regulate normal cell growth and development but can also induce malignancy.
  • Cellular oncogenes (c-onc) or proto-oncogenes are conserved in vertebrate genomes, indicating essential functions.
  • Viral oncogenes (v-onc) are derived from c-onc and are implicated in animal retroviruses.
  • The study examines oncogene products involved in growth control, signal transduction, gene expression, and development.

Impact:

  • Provides insights into the fundamental mechanisms of cell growth regulation.
  • Highlights the critical role of oncogenes in both normal development and cancer.
  • Establishes a foundation for understanding oncogene-driven diseases and potential 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.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
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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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