Evaluating RNA Quality in Breast Cancer Samples
Author Information
Author(s): Carina Strand, Johan Enell, Ingrid Hedenfalk, Mårten Fernö
Primary Institution: Lund University, Department of Oncology, Clinical Sciences
Hypothesis
If the RNA quality of the sample was good for all four time periods, the corresponding gene expression profiles should be similar and the samples should consequently cluster together.
Conclusion
The Manual and RIN methods are superior to the Ratio method for evaluating RNA quality in fresh frozen breast cancer tissues.
Supporting Evidence
- The Manual and RIN methods showed concordance in 23 out of 24 samples.
- All three methods were concordant in 20 out of 24 samples.
- The inclusion of samples with degraded RNA may profoundly affect gene expression levels.
Takeaway
This study looked at how to check the quality of RNA in breast cancer samples, finding that two methods work better than one for making sure the RNA is good.
Methodology
The study compared three methods for evaluating RNA quality: Manual, Ratio, and RIN, using microcapillary electrophoresis traces from 24 fresh frozen invasive breast cancer tissues.
Potential Biases
Subjective interpretation in the Manual method may introduce bias.
Limitations
The study may be limited by the variability in RNA quality due to different tissue compositions and sample collection procedures.
Participant Demographics
Samples were from six patients with invasive breast cancer.
Statistical Information
P-Value
0.01%
Statistical Significance
p ≤ 0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website