Objective To study the molecular mechanism of Rhei Radix et Rhizoma in treatment of knee osteoarthritis.Methods The active ingredients and potential targets of Rhei Radix et Rhizoma were collected through TCMSP,PubChem,and Swiss databases.GeneCards,OMIM,and DisGeNET databases were used to search the related targets of knee arthritis.The intersection target of Rhei Radix et Rhizoma in treatment of knee arthritis was obtained by using Venny 2.1 to draw Venn diagram.Based on STRING database,the network diagram of"drug-active ingredient-target-disease"was made by Cytoscape 3.10 software,and the core target was selected by topological analysis.DAVID database was used for GO and KEGG pathway enrichment analysis,and molecular docking was performed by Discovery Studio software.Results A total of 16 active components of Rhei Radix et Rhizoma were screened,including emodin,β-sitosterol,rhein,emodin methyl ethol,etc.,and core targets such as Akt1,MMP9,EGFR,SRC,CASP3 were screened.The signaling pathways of Rhei Radix et Rhizoma for the treatment of knee arthritis are mainly concentrated in proteoglycan pathway,cancer pathway,endocrine resistance pathway,prostate cancer pathway,epidermal growth factor receptor signaling pathway,focal adhesion pathway,and human giant cell infection pathway.Molecular docking showed that core components emodin,β-sitosterol,rhein,emodin methyl ether and core targets Akt1,MMP9,EGFR,SRC,CASP3,and so on were well docked.Conclusion Active components such as emodin and rhein in Rhei Radix et Rhizoma may regulate multiple signaling pathways by acting on Akt1,MMP9,EGFR and other targets to achieve the therapeutic effect of knee osteoarthritis.
Rhei Radix et Rhizomaknee osteoarthritisnetwork pharmacologymolecular dockingβ-sitosterolemodinrhein
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