A sequence-oriented comparison of gene expression measurements across different hybridization-based technologies

  • Winston Patrick Kuo
  • , Fang Liu
  • , Jeff Trimarchi
  • , Claudio Punzo
  • , Michael Lombardi
  • , Jasjit Sarang
  • , Mark E. Whipple
  • , Malini Maysuria
  • , Kyle Serikawa
  • , Sun Young Lee
  • , Donald McCrann
  • , Jason Kang
  • , Jeffrey R. Shearstone
  • , Jocelyn Burke
  • , Daniel J. Park
  • , Xiaowei Wang
  • , Trent L. Rector
  • , Paola Ricciardi-Castagnoli
  • , Steven Perrin
  • , Sangdun Choi
  • Roger Bumgarner, Ju Han Kim, Glenn F. Short, Mason W. Freeman, Brian Seed, Roderick Jensen, George M. Church, Eivind Hovig, Connie L. Cepko, Peter Park, Lucila Ohno-Machado, Tor Kristian Jenssen

Research output: Contribution to journalArticlepeer-review

136 Scopus citations

Abstract

Over the last decade, gene expression microarrays have had a profound impact on biomedical research. The diversity of platforms and analytical methods available to researchers have made the comparison of data from multiple platforms challenging. In this study, we describe a framework for comparisons across platforms and laboratories. We have attempted to include nearly all the available commercial and 'in-house' platforms. Using probe sequences matched at the exon level improved consistency of measurements across the different microarray platforms compared to annotation-based matches. Generally, consistency was good for highly expressed genes, and variable for genes with lower expression values as confirmed by quantitative real-time (QRT)-PCR. Concordance of measurements was higher between laboratories on the same platform than across platforms. We demonstrate that, after stringent preprocessing, commercial arrays were more consistent than in-house arrays, and by most measures, one-dye platforms were more consistent than two-dye platforms.

Original languageEnglish
Pages (from-to)832-840
Number of pages9
JournalNature Biotechnology
Volume24
Issue number7
DOIs
StatePublished - Jul 2006
Externally publishedYes

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