Journal
NATURE BIOTECHNOLOGY
Volume 24, Issue 9, Pages 1151-1161Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nbt1239
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Funding
- Intramural NIH HHS [Z99 CL999999, Z99 MH999999, Z99 LM999999, Z99 HL999999] Funding Source: Medline
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Over the last decade, the introduction of microarray technology has had a profound impact on gene expression research. The publication of studies with dissimilar or altogether contradictory results, obtained using different microarray platforms to analyze identical RNA samples, has raised concerns about the reliability of this technology. The MicroArray Quality Control (MAQC) project was initiated to address these concerns, as well as other performance and data analysis issues. Expression data on four titration pools from two distinct reference RNA samples were generated at multiple test sites using a variety of microarray-based and alternative technology platforms. Here we describe the experimental design and probe mapping efforts behind the MAQC project. We show intraplatform consistency across test sites as well as a high level of interplatform concordance in terms of genes identified as differentially expressed. This study provides a resource that represents an important first step toward establishing a framework for the use of microarrays in clinical and regulatory settings.
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