Adaptation to acetaminophen exposure elicits major changes in expression and distribution of the hepatic proteome.

ABSTRACT: Acetaminophen overdose is the leading cause of acute liver failure. One dose of 10-15 g causes severe liver damage in humans, whereas repeated exposure to acetaminophen in humans and animal models results in autoprotection. Insight of this process is limited to select proteins implicated in acetaminophen toxicity and cellular defence. Here we investigate hepatic adaptation to acetaminophen toxicity from a whole proteome perspective, using quantitative mass spectrometry. In a rat model, we show the response to acetaminophen involves the expression of 30% of all proteins detected in the liver. Genetic ablation of a master regulator of cellular defence, NFE2L2, has little effect, suggesting redundancy in the regulation of adaptation. We show that adaptation to acetaminophen has a spatial comp

SUBMITTER: Eakins R 

PROVIDER: S-EPMC4660393 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature