Systems approach to the pharmacological actions of HDAC inhibitors reveals EP300 activities and convergent mechanisms of regulation in diabetes
| Autor: | Antony Kaspi, Mark Ziemann, Assam El-Osta, Tom Karagiannis, Haloom Rafehi, Jun Okabe |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Cancer Research Systems biology Gene regulatory network Biology Bioinformatics Epigenesis Genetic 03 medical and health sciences Diabetes Mellitus Histone code Humans Gene Regulatory Networks Molecular Biology Cells Cultured Epigenesis Epigenomics Gene knockdown Systems Biology Endothelial Cells Histone Code Histone Deacetylase Inhibitors Insulin receptor 030104 developmental biology biology.protein Histone deacetylase Endothelium Vascular E1A-Associated p300 Protein Research Paper |
| Zdroj: | Epigenetics. 12(11) |
| ISSN: | 1559-2308 |
| Popis: | Given the skyrocketing costs to develop new drugs, repositioning of approved drugs, such as histone deacetylase (HDAC) inhibitors, may be a promising strategy to develop novel therapies. However, a gap exists in the understanding and advancement of these agents to meaningful translation for which new indications may emerge. To address this, we performed systems-level analyses of 33 independent HDAC inhibitor microarray studies. Based on network analysis, we identified enrichment for pathways implicated in metabolic syndrome and diabetes (insulin receptor signaling, lipid metabolism, immunity and trafficking). Integration with ENCODE ChIP-seq datasets identified suppression of EP300 target genes implicated in diabetes. Experimental validation indicates reversal of diabetes-associated EP300 target genes in primary vascular endothelial cells derived from a diabetic individual following inhibition of HDACs (by SAHA), EP300, or EP300 knockdown. Our computational systems biology approach provides an adaptable framework for the prediction of novel therapeutics for existing disease. |
| Databáze: | OpenAIRE |
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