Abstract

Glycyrrhiza uralensis is used to treat alcoholic liver injury in China; however, its pharmacological mechanism remains to be clarified. Here, the potential of G. uralensis for the treatment of alcoholic liver injury was explored using a network pharmacology and molecular docking approach. The effective components and targets of G. uralensis were searched in a traditional Chinese medicine systems pharmacology database and analysis platform. Disease targets were obtained using the GeneCards and OMIM databases. The target genes of G. uralensis and alcoholic liver injury were compared to obtain common target genes. Symbol conversion was carried out using the Uniport database, and the composition–target network of G. uralensis and alcoholic liver injury was prepared. A protein–protein interaction network was constructed. Gene Ontology functional enrichment and the Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were performed. AutoDock was used for the molecular docking of core compounds and key targets. One hundred and ninety-three common target genes of G. uralensis and alcoholic liver injury were screened. We identified targets of five active components of G. uralensis, namely, formononetin, 3′-methoxyglabridin, glypallichalcone, 1-methoxyphaseollidin, and glabridin. The main targets identified via the protein–protein interaction network analysis were JUN, MAPK3, STAT3, AKT1, and MAPK1. The biological processes associated with xenobiotic stimulus and lipopolysaccharide metabolism were involved. These biological processes were common between Glycyrrhiza treatment and liver injury. They mainly involved lipid and atherosclerosis, chemical carcinogenic gene-receptor activation, and Kaposi sarcoma-associated herpesvirus. Shinpterocarpin and 7-methoxy-2-methyl-isoflavone had good docking effects with MAPK3, and their binding energies were less than −5 kcal/mol. Based on the network pharmacology and molecular docking analyses, the chemical compositions, potential targets, and pathways involved in G. uralensis treatment of alcoholic liver injury were successfully predicted. This study lays a foundation for the selection of drugs to treat alcoholic liver injury.

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