Abstract
The liver is a vital organ in vertebrates that can be subject to disease, among others due to exposure to toxic xenobiotic compounds. A group of transcription factors named ligand activated nuclear receptors (LANR) influence and regulate important liver functions, and can be activated by many xenobiotic compounds, which thereby can cause hepatotoxicity. Systematic analysis of the gene pathways regulated by LANR using modern ‘omics technologies is important for investigating modes-of-action of hepatotoxicants. So far, these pathways are not publicly available in a format that allows these studies.
We used PathVisio to build liver-specific LANR pathways, both for rats and humans. Since many LANR pathways are linked to each other, we also merged them into a meta-pathway. The pathways are in a GPML-format that enables pathway statistics and visualisations, and will be made available to the public through WikiPathways. We demonstrate the performance of these novel pathways in evaluating transcriptomic studies from the Japanese toxicogenomics project database (Open TG-GATEs).
We show that the new pathways can be used to accurately analyse and visualize the effects of prototypical hepatotoxicants in important liver processes, and thus to evaluate the possible mode-of-actions of hepatotoxic xenobiotic compounds by assessing which LANRs are possible targets.
Keywords: Gene expression, hepatotoxicants, human, ligand activated nuclear receptors, pathways, rodent.
Current Drug Metabolism
Title:Pathways for Ligand Activated Nuclear Receptors to Unravel the Genomic Responses Induced by Hepatotoxicants
Volume: 14 Issue: 10
Author(s): R.R.R. Fijten, D.G.J. Jennen and J.H.M. van Delft
Affiliation:
Keywords: Gene expression, hepatotoxicants, human, ligand activated nuclear receptors, pathways, rodent.
Abstract: The liver is a vital organ in vertebrates that can be subject to disease, among others due to exposure to toxic xenobiotic compounds. A group of transcription factors named ligand activated nuclear receptors (LANR) influence and regulate important liver functions, and can be activated by many xenobiotic compounds, which thereby can cause hepatotoxicity. Systematic analysis of the gene pathways regulated by LANR using modern ‘omics technologies is important for investigating modes-of-action of hepatotoxicants. So far, these pathways are not publicly available in a format that allows these studies.
We used PathVisio to build liver-specific LANR pathways, both for rats and humans. Since many LANR pathways are linked to each other, we also merged them into a meta-pathway. The pathways are in a GPML-format that enables pathway statistics and visualisations, and will be made available to the public through WikiPathways. We demonstrate the performance of these novel pathways in evaluating transcriptomic studies from the Japanese toxicogenomics project database (Open TG-GATEs).
We show that the new pathways can be used to accurately analyse and visualize the effects of prototypical hepatotoxicants in important liver processes, and thus to evaluate the possible mode-of-actions of hepatotoxic xenobiotic compounds by assessing which LANRs are possible targets.
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Cite this article as:
Fijten R.R.R., Jennen D.G.J. and Delft van J.H.M., Pathways for Ligand Activated Nuclear Receptors to Unravel the Genomic Responses Induced by Hepatotoxicants, Current Drug Metabolism 2013; 14 (10) . https://dx.doi.org/10.2174/1389200214666131118234138
DOI https://dx.doi.org/10.2174/1389200214666131118234138 |
Print ISSN 1389-2002 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5453 |
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