Reproducibility of Quantitative RT-PCR Array in miRNA Expression Profiling and Comparison with Microarray Analysis

ABSTRACT: High reproducibility with TaqMan microRNA array (qPCR-array) was demonstrated by comparing replicate results from the same RNA sample. Pre-amplification of the miRNA cDNA improved sensitivity of the qPCR-array and increased the number of detectable miRNAs. Furthermore, the relative expression levels of miRNAs were maintained after pre-amplification. When the performance of qPCR-array and microarrays were compared using different aliquots of the same RNA, a low correlation between the two methods (r = -0.443) indicated considerable variability between the two assay platforms. Higher variation between replicates was observed in miRNAs with low expression in both assays. Finally, a higher false positive rate of differential miRNA expression was observed using the microarray compared to the qP

ORGANISM(S): Mus musculus

SUBMITTER: Jonathan Gelfond 

PROVIDER: E-GEOD-16000 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress