Optimized Protocol for Microarray Validation by qPCR
Author Information
Author(s): Jeanty Céline, Longrois Dan, Mertes Paul-Michel, Wagner Daniel R, Devaux Yvan
Primary Institution: Centre de Recherche Public-Santé, Luxembourg
Hypothesis
Can validation experiments be performed on amplified amino allyl labeled RNA leftover from microarrays?
Conclusion
An optimized reverse transcription protocol for validation of microarrays by qPCR from AA-aRNA was developed, which is particularly valuable when limited RNA is available.
Supporting Evidence
- qPCR for ACTB on AA-aRNA showed Cq values 8 cycles higher than original RNA (P < 0.001).
- RT optimization provided a gain of 2.7 cycles (P = 0.004) when tested on AA-aRNA from 15 donors.
- qPCR results significantly correlated with microarrays.
Takeaway
The study found a better way to check microarray results using leftover RNA, which helps when there's not much RNA to work with.
Methodology
The study involved optimizing the reverse transcription protocol for qPCR using AA-aRNA from microarray experiments.
Potential Biases
Potential bias due to the method of RNA collection and processing.
Limitations
The study was limited by the small sample size and the specific conditions under which the RNA was collected.
Participant Demographics
15 brain-dead organ donors, median age 50, 14 males.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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