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Clinical applications of tumor suppressor genes and oncogenes in cancer
1Department of Clinical Biochemistry, University of Toronto, Ontario, Canada.
Abstract:
In the search for new ways to better diagnose and monitor cancer, scientists have turned to oncogenes and tumor suppressor genes. These genes are involved in cell differentiation, communication and proliferation and their alteration is frequently associated with cancer. Such alterations include mutations, translocations, amplifications and deletions. In this review, I give examples of using the detection of such alterations for patient diagnosis and monitoring. The practical examples are restricted to a few cancer types, but the identification of new tumor suppressor genes, like BRCA-1 and BRCA-2, is creating new possibilities for determining cancer risk of individual family members. There is no doubt that the cloning of new genes which predispose to sporadic cancer will lead to the introduction of widespread testing to assess risk and to the application of preventive measures.
Insights
Scientists are using genetic alterations in oncogenes and tumor suppressor genes for cancer diagnosis and monitoring. Identifying new genes, like BRCA-1 and BRCA-2, enhances cancer risk assessment and preventive strategies.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Cancer development is linked to alterations in oncogenes and tumor suppressor genes.
- These genes regulate crucial cellular processes like differentiation, communication, and proliferation.
- Gene alterations include mutations, translocations, amplifications, and deletions.
Purpose of the Study:
- To review the use of detecting genetic alterations in oncogenes and tumor suppressor genes for cancer diagnosis and monitoring.
- To highlight the potential of newly identified tumor suppressor genes in assessing cancer risk.
- To discuss the future implications of gene discovery for cancer risk assessment and prevention.
Main Methods:
- Review of scientific literature on oncogenes and tumor suppressor genes in cancer.
- Examples of diagnostic and monitoring applications based on detecting specific gene alterations.
- Discussion of the role of genes like BRCA-1 and BRCA-2 in cancer risk assessment.
Main Results:
- Detection of genetic alterations in oncogenes and tumor suppressor genes provides valuable diagnostic and monitoring tools.
- Identification of novel tumor suppressor genes, such as BRCA-1 and BRCA-2, expands possibilities for individual cancer risk determination.
- Advances in gene cloning offer potential for widespread risk assessment and preventive measures for sporadic cancers.
Conclusions:
- Genetic alterations in key cancer-related genes are pivotal for diagnosis and monitoring.
- The discovery of genes like BRCA-1 and BRCA-2 significantly improves cancer risk assessment for families.
- Future gene discoveries will likely drive widespread genetic testing and proactive cancer prevention strategies.
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