Breast Cancer Gene Amplification Study
Author Information
Author(s): M. Tavassoli, P. Quirke, F. Farzaneh, N.J. Lock, L.V. Mayne, N. Kirkham
Primary Institution: University of Sussex
Hypothesis
The study aims to identify alterations in oncogenes in human breast carcinomas and their correlation with tumor characteristics.
Conclusion
The study found that co-amplification of c-erbB-2 and c-erbA is a strong indicator of metastatic potential in breast tumors, while c-myc amplification correlates with high tumor grade.
Supporting Evidence
- 28% of tumors showed amplification of c-erbB-2.
- 91% of tumors with c-erbB-2 amplification had increased c-erbB-2 mRNA levels.
- 83% of tumors with c-erbB-2 and c-erbA co-amplification had metastasized to lymph nodes.
- 21% of tumors showed amplification of c-myc, with 82% of those being grade 3.
- 90% of tumors with c-erbB-2 and c-erbA co-amplification were DNA aneuploid.
Takeaway
This study looked at breast cancer samples to see if certain genes were more active, which could help doctors understand how aggressive the cancer is.
Methodology
The study analyzed 73 samples, including primary breast carcinomas, normal breast tissues, and axillary lymph nodes, for gene amplifications and structural alterations using flow cytometry and hybridization techniques.
Participant Demographics
The study included 52 patients with primary breast carcinomas.
Statistical Information
P-Value
p<0.005
Statistical Significance
p<0.006
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