MicroRNA Profiling in Breast Cancer Samples
Author Information
Author(s): Britta Hasemeier, Matthias Christgen, Hans Kreipe, Ulrich Lehmann
Primary Institution: Institute of Pathology, Medizinische Hochschule Hannover
Hypothesis
Can microRNA profiling be reliably performed on formalin-fixed paraffin-embedded breast cancer specimens?
Conclusion
MicroRNA expression patterns can be reliably derived from routinely processed FFPE breast cancer specimens using fluorescence labelled bead technology.
Supporting Evidence
- A statistically significant correlation was found for the expression of 319 microRNAs in FFPE and fresh frozen samples.
- The expression pattern of 3 microRNAs was validated using real-time RT-PCR technology.
- The study demonstrated that FFPE samples can be used for large-scale microRNA profiling.
Takeaway
Scientists can study tiny molecules called microRNAs in breast cancer samples that have been preserved for a long time, helping to understand cancer better.
Methodology
The study used fluorescence labelled bead technology to analyze microRNA expression in paired fresh-frozen and FFPE breast cancer specimens.
Potential Biases
Potential bias may arise from the RNA extraction and analysis methods used.
Limitations
The methodology requires relatively large amounts of total RNA, which may not be available for every case.
Participant Demographics
12 breast cancer specimens from the archives of the Institute of Pathology, Medizinische Hochschule Hannover.
Statistical Information
P-Value
<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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