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Analysing p53 tumour suppressor functions in mice
Hayla K Sluss1, Stephen N Jones
1Department of Cell Biology, University of Massachusetts Medical School, 55 Lake Avenue, Worcester, Massachusetts 01541, USA. Hayla.Sluss@umassmed.edu
Expert Opinion on Therapeutic Targets
|January 31, 2003
Summary
The p53 tumor suppressor gene is crucial for genome integrity and preventing cancer. Genetically modified mouse models have significantly advanced our understanding of p53
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Tumor suppressor gene loss is a key step in cancer development.
- The p53 gene is frequently mutated in human cancers (approx. 50%) and Li-Fraumeni syndrome.
- p53 acts as a transcription factor regulating genome integrity in response to DNA damage.
Purpose of the Study:
- To review the contribution of genetically modified mouse models to understanding p53's tumor suppressor functions.
- To highlight how insights into p53 function facilitate drug development for cancers with altered p53.
Main Methods:
- Analysis of genetically-modified mouse models with p53 modifications.
- Complementary studies using human cancer tissue and cultured cells.
Main Results:
- Genetically modified mice have greatly expanded knowledge of p53's role in tumor suppression.
- Improved understanding of p53 function aids research into therapeutic modifications of p53 activity.
Conclusions:
- Mouse models are invaluable tools for studying p53-mediated tumor suppression.
- Enhanced understanding of p53 is critical for developing novel cancer treatments.