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Focus Formation: A Cell-based Assay to Determine the Oncogenic Potential of a Gene
Published on: December 31, 2014
[(Proto)-oncogenes, cellular growth and development]
1Unité de Génétique des Mammifères, Institut Pasteur, Paris.
Abstract:
In the past few years, one realizes that number of genes whose products are involved in regulating normal cell growth and development are also capable of inducing malignancy. These genes are called oncogenes and include 1 degree the cellular oncogenes (c-onc) or proto-oncogenes and 2 degrees the viral oncogenes (v-onc) which are most likely derived from c-onc and which are the transforming genes of several strains of animal retrovirus. The c-onc are present in the genome of all vertebrate cells and show a remarkable degree of evolutionary conservation, suggesting that they serve essential cellular functions. The analysis of biological properties of both types of oncogenes is of importance to understand the role of proto-oncogenes in normal cell proliferation and/or differentiation and development and to determine how alterations in their structures play a role in malignant transformation. In order to give an overview of the diversity of oncogene activities, several oncogene products involved in growth control, signal transduction, gene expression and development will be described.
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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