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Statins as a Potential Treatment for Non-alcoholic Fatty Liver Disease: Target Deconvolution using Protein-protein
Ali Mahmoudi1,2, Alexandra E Butler3, Alexander N Orekhov4,5
1Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Background:
The hallmark of non-alcoholic fatty liver disease (NAFLD) is aberrant buildup of triglycerides (TGs) in hepatocytes. Many genes promote NAFLD development. Using bioinformatics tools, we investigated the possible effect of statins on genes involved in NAFLD progression.
Methods:
Protein interactions of statins and NAFLD were searched in gene-drug and gene-disease databases. A Protein-Protein interaction (PPI) network was constructed to find hub genes and Molecular Complex Detection (MCODE) of NAFLD-related genes. Shared protein targets between protein targets of statins and NAFLD-associated genes were identified. Next, targets of each statin were assayed with all modular clusters in the MCODEs related to NAFLD. Biological process and pathway enrichment analysis for shared proteins was performed.
Results:
Screening protein targets for conventional statins and curated NAFLD-related genes identified 343 protein targets and 70 genes, respectively. A Venn diagram of NAFLD-related genes and protein targets of statins showed 24 shared proteins. The biological pathways on KEGG enrichment associated with the 24 shared protein sets were evaluated and included cytokine-cytokine receptor interaction, adipocytokine, PPAR, TNF and AMPK signaling pathways. Gene Ontology analysis showed major involvement in lipid metabolic process regulation and inflammatory response. PPI network analysis of 70 protein targets indicated 13 hub genes (PPARA, IL4, CAT, LEP, SREBF1, PRKCA, CYP2E1, NFE2L2, PTEN, NR1H4, ADIPOQ, GSTP1 and TGFB1). Comparing all seven statins with the three MCODE clusterings and 13 hub genes revealed that simvastatin as the most associated statin with NAFLD.
Conclusion:
Simvastatin has the most impact on NAFLD-related genes versus other statins.
Insights
Simvastatin shows the greatest impact on genes associated with non-alcoholic fatty liver disease (NAFLD) compared to other statins. This study used bioinformatics to analyze statin effects on NAFLD progression genes.
Area of Science:
- Hepatology
- Pharmacogenomics
- Bioinformatics
Background:
- Non-alcoholic fatty liver disease (NAFLD) is characterized by excessive triglyceride accumulation in liver cells.
- Numerous genes contribute to the development and progression of NAFLD.
- Statins are commonly prescribed lipid-lowering drugs with potential effects on NAFLD-related genes.
Purpose of the Study:
- To investigate the potential impact of statins on genes involved in non-alcoholic fatty liver disease (NAFLD) progression using bioinformatics.
- To identify specific statins and their associated genes that may influence NAFLD pathogenesis.
Main Methods:
- Utilized gene-drug and gene-disease databases to identify protein interactions between statins and NAFLD.
- Constructed a Protein-Protein Interaction (PPI) network to identify hub genes and used Molecular Complex Detection (MCODE) for NAFLD-related gene clusters.
- Performed KEGG pathway and Gene Ontology enrichment analyses on shared protein targets between statins and NAFLD genes.
Main Results:
- Identified 24 shared protein targets between statins and NAFLD-related genes.
- Enrichment analysis revealed involvement in cytokine-cytokine receptor interaction, adipocytokine, PPAR, TNF, and AMPK signaling pathways, as well as lipid metabolism and inflammatory response.
- Simvastatin emerged as the statin most strongly associated with NAFLD-related genes and hub genes, including PPARA, SREBF1, and ADIPOQ.
Conclusions:
- Simvastatin demonstrates the most significant association with NAFLD-related genes among the statins analyzed.
- These findings suggest a potential therapeutic role for simvastatin in managing NAFLD through its effects on specific molecular pathways and genes.
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