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Published on: March 11, 2017
Analysis of the Genetic Relationship between Atherosclerosis and Non-Alcoholic Fatty Liver Disease through Biological
Francisco Andújar-Vera1,2,3,4, María Ferrer-Millán1, Cristina García-Fontana1,2,5
1Instituto de Investigación Biosanitaria de Granada (ibs. GRANADA), 18014 Granada, Spain.
Abstract:
Non-alcoholic fatty liver disease (NAFLD) seems to have some molecular links with atherosclerosis (ATH); however, the molecular pathways which connect both pathologies remain unexplored to date. The identification of common factors is of great interest to explore some therapeutic strategies to improve the outcomes for those affected patients. Differentially expressed genes (DEGs) for NAFLD and ATH were extracted from the GSE89632 and GSE100927 datasets, and common up- and downregulated DEGs were identified. Subsequently, a protein-protein interaction (PPI) network based on the common DEGs was performed. Functional modules were identified, and the hub genes were extracted. Then, a Gene Ontology (GO) and pathway analysis of common DEGs was performed. DEGs analysis in NAFLD and ATH showed 21 genes that were regulated similarly in both pathologies. The common DEGs with high centrality scores were ADAMTS1 and CEBPA which appeared to be down- and up-regulated in both disorders, respectively. For the analysis of functional modules, two modules were identified. The first one was oriented to post-translational protein modification, where ADAMTS1 and ADAMTS4 were identified, and the second one mainly related to the immune response, where CSF3 was identified. These factors could be key proteins with an important role in the NAFLD/ATH axis.
Insights
This study identifies 21 common genes linking non-alcoholic fatty liver disease (NAFLD) and atherosclerosis (ATH). Key genes like ADAMTS1 and CEBPA may be crucial for understanding and potentially treating these interconnected conditions.
Area of Science:
- Hepatology and Cardiology
- Molecular Biology
- Genomics
Background:
- Non-alcoholic fatty liver disease (NAFLD) and atherosclerosis (ATH) share potential molecular links.
- Understanding the molecular pathways connecting NAFLD and ATH is crucial for developing effective therapeutic strategies.
Purpose of the Study:
- To identify common differentially expressed genes (DEGs) between NAFLD and ATH.
- To explore the molecular mechanisms underlying the co-occurrence of NAFLD and ATH.
- To identify potential therapeutic targets for both conditions.
Main Methods:
- Extraction of DEGs from NAFLD (GSE89632) and ATH (GSE100927) datasets.
- Identification of common up- and downregulated DEGs.
- Construction of a protein-protein interaction (PPI) network.
- Gene Ontology (GO) and pathway analysis.
Main Results:
- Identified 21 genes with similar regulation patterns in both NAFLD and ATH.
- ADAMTS1 (downregulated) and CEBPA (upregulated) emerged as high-centrality hub genes.
- Two functional modules were identified: one related to post-translational protein modification (ADAMTS1, ADAMTS4) and another to immune response (CSF3).
Conclusions:
- ADAMTS1, CEBPA, and CSF3 are identified as key proteins potentially mediating the NAFLD/ATH axis.
- These findings offer insights into the molecular interplay between liver and vascular pathologies.
- Further research into these factors could lead to novel therapeutic approaches for patients with co-existing NAFLD and ATH.
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