Background and Aims:Inflammatory Bowel Disease (IBD) is a refractory disease
with repeated attacks, and there is no accurate treatment target at present. Dipyridamole, a
phosphodiesterase (PDE) inhibitor, has been proven to be an effective treatment for IBD in a
pilot study. This study explored the therapeutic target of IBD and the pharmacological mechanism
of dipyridamole for the treatment of IBD.Materials and Methods:The candidate targets of dipyridamole were obtained by searching the
pharmMapper online server and Swiss Target Prediction Database. The IBD-related targets
were selected from four GEO chips and three databases, including Genecards, DisGeNET, and
TTD database. A protein-protein interaction (PPI) network was constructed, and the core targets
were identified according to the topological structure. KEGG and GO enrichment analysis and
BioGPS location were performed. Finally, molecular docking was used to verify dipyridamole
and the hub targets.Results:We obtained 112 up-regulated genes and 157 down-regulated genes, as well as 105
composite targets of Dipyridamole-IBD. Through the PPI network analysis, we obtained the 7
hub targets, including SRC, EGFR, MAPK1, MAPK14, MAPK8, PTPN11, and LCK. The BioGPS
showed that these genes were highly expressed in the immune system, digestive system,
and endocrine system. In addition, the 7 hub targets had good intermolecular interactions with
dipyridamole. The therapeutic effect of dipyridamole on IBD may involve immune system activation
and regulation of inflammatory reactions involved in the regulation of extracellular matrix,
perinuclear region of cytoplasm, protein kinase binding, and positive regulation of programmed
cell death through cancer pathway (proteoglycans in cancer), lipid metabolism, Ras
signaling pathway, MAPK signaling pathway, PI3K-AKT signaling pathway, Th17 cell differentiation,
and other cellular and innate immune signaling pathways.Conclusion:This study predicted the therapeutic target of IBD and the molecular mechanism of
dipyridamole in treating IBD, providing a new direction for the treatment of IBD and a theoretical
basis for further research.