C-erbB2 mRNA Expression in Breast Tumors and Its Prognostic Value
Author Information
Author(s): H.C. Parkes, K. Lillycrop, A. Howell, R.K. Craig
Primary Institution: University College and Middlesex School of Medicine
Hypothesis
Does c-erbB2 mRNA expression correlate with prognosis in breast cancer?
Conclusion
The study found that c-erbB2 mRNA overexpression is associated with poor tumor grade but not with early disease recurrence.
Supporting Evidence
- c-erbB2 gene amplification was observed in 17.5% of tumors.
- 30% of tumors showed overexpression of c-erbB2 mRNA.
- Overexpression was associated with poor tumor grade.
- No significant correlation was found with steroid receptor status.
Takeaway
This study looked at breast cancer tumors to see if a certain gene, c-erbB2, is more active in tumors that are harder to treat. They found that more active c-erbB2 is linked to worse tumor grades.
Methodology
The study analyzed c-erbB2 mRNA expression and gene amplification in 70 breast tumors using RNase mapping and in situ hybridization techniques.
Limitations
The study had a small sample size for some analyses, particularly regarding survival outcomes.
Participant Demographics
Patients aged 33-88, with a median age of 60; 95% treated with surgery.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
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