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Toxicologic Pathology
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Invited Review: Toxicoproteomics: Proteomics Applied to Toxicology and Pathology

Barbara A. Wetmore

National Center for Toxicogenomics, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709, USA

B. Alex Merrick

National Center for Toxicogenomics, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, 27709, USA, merrick{at}niehs.nih.gov

Global measurement of proteins and their many attributes in tissues and biofluids defines the field of proteomics. Toxicoproteomics, as part of the larger field of toxicogenomics, seeks to identify critical proteins and pathways in biological systems that are affected by and respond to adverse chemical and environmental exposures using global protein expression technologies. Toxicoproteomics integrates 3 disciplinary areas: traditional toxicology and pathology, differential protein and gene expression analysis, and systems biology. Key topics to be reviewed are the evolution of proteomics, proteomic technology platforms and their capabilities with exemplary studies from biology and medicine, a review of over 50 recent studies applying proteomic analysis to toxicological research, and the recent development of databases designed to integrate -Omics technologies with toxicology and pathology. Proteomics is examined for its potential in discovery of new biomarkers and toxicity signatures, in mapping serum, plasma, and other biofluid proteomes, and in parallel proteomic and transcriptomic studies. The new field of toxicoproteomics is uniquely positioned toward an expanded understanding of protein expression during toxicity and environmental disease for the advancement of public health.

Key Words: Proteomics • toxicogenomics • toxicology • pathology • mass spectrometry • toxicity • microarray • biomarkers • systems biology.

Toxicologic Pathology, Vol. 32, No. 6, 619-642 (2004)
DOI: 10.1080/01926230490518244
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