BRCA2 and p53 mutations in primary breast cancer in relation to genetic instability.
retrospective_cohort · Level III
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Abstract
The products of the BRCA breast cancer susceptibility genes have been implicated in cell cycle control and DNA repair. It has been suggested that mutations in the p53 gene are a necessary step in tumorigenesis in BRCA tumors. We tested samples from 402 breast cancer patients for germ-line BRCA2 and p53 mutations in tumors. p53 mutations are more frequent in BRCA2 mutation carriers than they are in controls. Tumors with mutations in either gene had multiple chromosomal abnormalities, as shown by cytogenetic analysis.
Medical subject headings
- Breast Neoplasms
- Chromosome Aberrations
- Chromosome Disorders
- Genes, p53
- Mutation
- Neoplasm Proteins
- Transcription Factors