Network pharmacology-based investigation on the mechanisms of action of Morinda officinalis How. in the treatment of osteoporosis

BACKGROUND Osteoporosis is a systemic skeletal disease that leads to a high risk for bone fractures. Morinda officinalis How. has been used as osteoporosis treatment in China. However, its mechanism of action as an anti-osteoporotic herb remains unknown. METHODS A network pharmacology approach was applied to explore the potential mechanisms of action of M. officinalis in osteoporosis treatment. The active compounds of M. officinalis and their potential osteoporosis-related targets were retrieved from TCMSP, TCMID, SwissTargetPrediction, DrugBank, DisGeNET, GeneCards, OMIM, and TTD databases. A protein-protein interaction network was built to analyze the target interactions. The Metascape database was used to carry out GO enrichment analysis and KEGG pathway analysis. Moreover, interactions between active compounds and potential targets were investigated through molecular docking. RESULTS A total of 17 active compounds and 93 anti-osteoporosis targets of M. officinalis were selected for analysis. The GO enrichment analysis results indicated that the anti-osteoporosis targets of M. officinalis mainly play a role in the response to steroid hormone. The KEGG pathway enrichment analysis showed that M. officinalis prevents osteoporosis through the ovarian steroidogenesis signaling pathway. Moreover, the molecular docking results indicated that bioactive compounds (morindon, ohioensin A, and physcion) demonstrated a good binding ability with IGF1R, INSR, ESR1, and MMP9. CONCLUSION M. officinalis contains potential anti-osteoporotic active compounds. These compounds function by regulating the proteins implicated in ovarian steroidogenesis-related pathways that are crucial in estrogen biosynthesis. Our study provides new insights into the development of a natural therapy for the prevention and treatment of osteoporosis.

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