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Molecular mechanisms of transformation by the v-rel oncogene
Abstract:
Our knowledge of the molecular mechanisms that underlie the diverse cellular phenotypes collectively called cancer has increased dramatically over the past 20 years. A significant contribution to our current understanding of cancer has come from research into the behavior of a unique group of viruses, the acutely transforming retroviruses. The acutely transforming retroviruses contain one, or occasionally two, genes that are responsible for the transforming properties of the viruses. These genes, called retroviral oncogenes, have been transduced from genes present in the normal cellular genome, called proto-oncogenes. The proto-oncogenes encode diverse proteins that are important for the regulation of normal cell growth and differentiation. One such proto-oncogene, the c-rel proto-oncogene, has recently been shown to encode a member of the Nuclear Factor-kappa B (NF-kappa B) transcription factor family. The structural and functional relationship between NF-kappa B and the c-rel protein provides a basis for understanding the molecular mechanism of neoplastic transformation by the v-rel protein.
Insights
Acutely transforming retroviruses carry genes called retroviral oncogenes that cause cancer. These oncogenes originate from normal cellular genes (proto-oncogenes), like c-rel, which encodes Nuclear Factor-kappa B (NF-kappa B).
Area of Science:
- Molecular biology
- Virology
- Cancer research
Background:
- Cancer arises from diverse molecular mechanisms.
- Acutely transforming retroviruses contribute to understanding cancer.
- These viruses possess genes (retroviral oncogenes) responsible for cellular transformation.
Purpose of the Study:
- To investigate the role of retroviral oncogenes in cancer.
- To explore the connection between proto-oncogenes and viral oncogenes.
- To understand the function of the c-rel proto-oncogene and its relation to NF-kappa B.
Main Methods:
- Analysis of retroviral oncogenes.
- Identification of proto-oncogenes.
- Characterization of the c-rel proto-oncogene and its protein product.
Main Results:
- Retroviral oncogenes are derived from cellular proto-oncogenes.
- The c-rel proto-oncogene encodes a Nuclear Factor-kappa B (NF-kappa B) transcription factor.
- Structural and functional similarities exist between NF-kappa B and c-rel proteins.
Conclusions:
- Proto-oncogenes play a crucial role in normal cell regulation.
- The c-rel proto-oncogene is linked to the NF-kappa B family.
- Understanding the c-rel/NF-kappa B relationship elucidates viral oncogenesis mechanisms.