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?:abstract
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Background: As one of the eight effective traditional Chinese medicines for the treatment of atypical pneumonia, compound Kushen injection (CKI) played an important role in combating pneumonia caused by severe acute respiratory syndrome coronavirus 2 virus in China in 2003 CKI is known to inhibit inflammation, and its main chemical components, namely matrine and oxymatrine, can promote Th cells to recognize and eliminate viruses In this study, network pharmacology and molecular docking were used to explore the mechanisms of CKI for treating coronavirus disease 2019 Methods: The Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform and other related literature were used to screen CKI\'s active ingredients in the blood Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform, Swiss Target Prediction and STITCH were used to search for potential targets of the active ingredients The \'ingredient-target\' network was constructed using the Cytoscape software The STRING online database was used to construct a target protein-protein interaction network that can be visualized and analyzed using the Cytoscape software to obtain key targets Results: Sophocarpine, sophoridine, matrine, (+)-allomatrine, AIDS211310, and sophranol were the six active ingredients After docking the active ingredients with severe acute respiratory syndrome coronavirus 2 3CL hydrolase and angiotensin-converting enzyme 2 (ACE2), they displayed suitable affinity, which could block viral replication and its binding to ACE2 The key targets mainly involved inflammatory factors, such as interleukin-6 (IL-6) and tumor necrosis factor (TNF) Gene Ontology enrichment analysis mainly indicated the IL-6 cytokine-mediated signaling pathway and cytokine-mediated signaling pathway The Kyoto Encyclopedia of Genes and Genome pathway enrichment analysis mainly indicated steroid hormone biosynthesis and the TNF signaling pathway Conclusion: The alkaloids in CKI can block viral replication and its binding to severe acute respiratory syndrome coronavirus 2 and ACE2 receptors They regulate the IL-6-mediated signaling pathway, TNF signaling pathway, and steroid hormone biosynthesis, thereby initiating therapeutic responses against coronavirus disease 2019
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