Role of gut microbiota metabolites against vein graft restenosis: insights from network pharmacology, molecular docking and molecular dynamic simulation
Abstract
BACKGROUND: Gut microbiota metabolites are increasingly recognized for their role in modulating chronic disease progression. However, their potential impact on vein graft restenosis (VGR) remains unexplored. This study aimed to elucidate the mechanisms by which gut microbiota and its metabolites attenuate VGR using an integrated approach of network pharmacology, molecular docking, and molecular dynamics (MD) simulations. METHODS: Gut microbiota, metabolites, and human gut targets were obtained from the gutMGene database. Metabolite targets were predicted using SwissTargetPrediction and Similarity Ensemble Approach, while disease targets were collected from GeneCards, Online Mendelian Inheritance in Man (OMIM), and DrugBank. Overlapping targets were used to construct both a protein-protein interaction (PPI) network and a gut microbiota–metabolites–targets–VGR (GM-M-T-V) network to identify key microbiota, core metabolites, and hub targets. Enrichment analysis investigated associated biological processes, cellular components, molecular functions, and signaling pathways. Drug-likeness and toxicity were evaluated with SwissADME and ADMETlab 2.0. Molecular docking and MD simulations assessed the binding affinity and dynamic characteristics of target-metabolite complexes. RESULTS: Integrated data from relevant databases identified 260 gut microbiota, 251 metabolites, 404 metabolite targets, 238 human gut targets, and 741 VGR-related targets. Among these, 16 overlapping targets…
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