title: EDGE: a centralized resource for the comparison, analysis, and distribution of toxicogenomic information.
abstract: Transcriptional profiling via microarrays holds great promise for toxicant classification and hazard prediction. Unfortunately, the use of different microarray platforms, protocols, and informatics often hinders the meaningful comparison of transcriptional profiling data across laboratories. One solution to this problem is to provide a low-cost and centralized resource that enables researchers to share toxicogenomic data that has been generated on a common platform. In an effort to create such a resource, we developed a standardized set of microarray reagents and reproducible protocols to simplify the analysis of liver gene expression in the mouse model. This resource, referred to as EDGE, was then used to generate a training set of 117 publicly accessible transcriptional profiles that can be accessed at http://edge.oncology.wisc.edu/. The Web-accessible database was also linked to an informatics suite that allows on-line clustering and K-means analyses as well as Boolean and sequence-based searches of the data. We propose that EDGE can serve as a prototype resource for the sharing of toxicogenomics information and be used to develop algorithms for efficient chemical classification and hazard prediction.
authors.affiliation: McArdle Laboratory for Cancer Research, 1400 University Avenue, Madison, WI 53706, USA.
authors.forename: Kevin R
authors.initials: KR
authors.lastname: Hayes
authors.forename: Aaron L
authors.initials: AL
authors.lastname: Vollrath
authors.forename: Gina M
authors.initials: GM
authors.lastname: Zastrow
authors.forename: Brian J
authors.initials: BJ
authors.lastname: McMillan
authors.forename: Mark
authors.initials: M
authors.lastname: Craven
authors.forename: Stevan
authors.initials: S
authors.lastname: Jovanovich
authors.forename: David R
authors.initials: DR
authors.lastname: Rank
authors.forename: Sharon
authors.initials: S
authors.lastname: Penn
authors.forename: Jacqueline A
authors.initials: JA
authors.lastname: Walisser
authors.forename: Janardan K
authors.initials: JK
authors.lastname: Reddy
authors.forename: Russell S
authors.initials: RS
authors.lastname: Thomas
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Bradfield
mesh_terms: D000818:Animals; D030541:Databases, Genetic; D020869:Gene Expression Profiling; D008070:Lipopolysaccharides / Q000494:pharmacology; D008099:Liver / Q000187:drug effects / Q000378:metabolism; D051379:Mice; D020411:Oligonucleotide Array Sequence Analysis / Q000379:methods*; D047493:PPAR alpha / Q000819:agonists; D018336:Receptors, Aryl Hydrocarbon / Q000819:agonists; D043922:Toxicogenetics
chemical_list: D008070:Lipopolysaccharides; D047493:PPAR alpha; D018336:Receptors, Aryl Hydrocarbon