Microarray results: how accurate are they?

By R. Kothapalli, S. Yoder, Shrikant M. Mane, T. Loughran. BMC Bioinformatics, 2002

303 citations recorded by the source corpus.

BackgroundDNA microarray technology is a powerful technique that was recently developed in order to analyze thousands of genes in a short time. Presently, microarrays, or chips, of the cDNA type and oligonucleotide type are available from several sources. The number of publications in this area is increasing exponentially.ResultsIn this study, microarray data obtained from two different commercially available systems were critically evaluated. Our analysis revealed several inconsistencies in the data obtained from the two different microarrays. Problems encountered included inconsistent sequence fidelity of the spotted microarrays, variability of differential expression, low specificity of cDNA microarray probes, discrepancy in fold-change calculation and lack of probe specificity for different isoforms of a gene.ConclusionsIn view of these pitfalls, data from microarray analysis need to be interpreted cautiously.

Subfields: Genetics, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/2c2be170f115c9b5a340ba5fbb1aa648ede37d7e

Citations in the corpus

• Evaluation of gene expression measurements from commercial microarray platforms. (2003, unknown): “Previous cross-platform microarray studies also found considerable discordance between gene expression measurements (5,15).”