Chromosome 11q Changes in Ovarian Cancer
Author Information
Author(s): W.D. Foulkes, I.G. Campbell, G.W.H. Stamp, J. Trowsdale
Primary Institution: Imperial Cancer Research Fund and Royal Postgraduate Medical School
Hypothesis
What genetic alterations on chromosome 11q contribute to ovarian carcinogenesis?
Conclusion
The study found significant loss of heterozygosity and amplification on chromosome 11q in ovarian cancer, suggesting the presence of a tumor suppressor gene in this region.
Supporting Evidence
- Over 80% of nonmucinous epithelial ovarian cancers express high levels of the folate receptor.
- Four out of 28 cancers showed amplification of the 11q13 region.
- Significant loss of heterozygosity was found at 11q23.3-qter in 67% of cases.
Takeaway
Scientists looked at DNA from ovarian cancer patients and found changes in a specific part of their chromosomes that might help explain how the cancer develops.
Methodology
The study used Southern blotting and PCR techniques to analyze tumor and lymphocyte DNA from patients.
Limitations
The study had a small sample size and may not represent all ovarian cancer cases.
Participant Demographics
Patients were unselected and operated on at various hospitals in London.
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