Prostate-Specific Ets Factor as a Marker for Metastatic Breast Cancer
Author Information
Author(s): Mitas M, Mikhitarian K, Hoover L, Lockett M A, Kelley L, Hill A, Gillanders W E, Cole D J
Primary Institution: Medical University of South Carolina
Hypothesis
Is Prostate Specific Ets overexpressed in breast cancer and can it serve as a marker for metastatic breast cancer in axillary lymph nodes?
Conclusion
Prostate Specific Ets is a potentially valuable marker for detecting metastatic breast cancer in axillary lymph nodes.
Supporting Evidence
- Prostate Specific Ets was expressed in 93% of breast cancer libraries analyzed.
- The mean level of Prostate Specific Ets expression in metastatic lymph nodes was 410-fold higher than in normal lymph nodes.
- Receiver operator characteristic curve analysis indicated a diagnostic accuracy of 0.949 for Prostate Specific Ets.
Takeaway
Researchers found a gene called Prostate Specific Ets that can help doctors find breast cancer spread in lymph nodes, which is important for treatment.
Methodology
The study used virtual Northern blot and quantitative real-time RT–PCR to analyze gene expression in breast cancer tissues and lymph nodes.
Potential Biases
Potential bias due to the use of cervical lymph nodes as negative controls instead of axillary lymph nodes.
Limitations
The study did not have access to normal axillary lymph nodes for comparison.
Participant Demographics
Included breast cancer patients and control patients without cancer.
Statistical Information
P-Value
0.949
Confidence Interval
0.828–0.990
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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