Biomarker analysis of rat livers exposed to different toxic pollutants (VOCs and PAHs) using an antibody array

We have developed an antibody microarray chip for biomarker analysis in rat livers exposed to five different toxic pollutants: volatile organic compounds (VOCs), dichloromethane, ethylbenzene, and trichloroethylene; and polycyclic aromatic hydrocarbons (PAHs), benzoanthracene and phenanthrene. The antibody chip consisted of antibodies against different biomarkers: alpha-2μ globulin, glutathione S transferase (GST)-α, Hemoglobin β, and Phenylalanine hydroxylase. VOC- and PAH-treated rat livers showed differential expression patterns of the biomarker proteins. These results demonstrate that a protein chipbased antibody array is useful for the analysis of biomarkers induced by environmental toxic pollutants and can be a powerful tool to study the mechanisms of pollutants in biological samples.