
Full text loading...
Traditional Chinese medicine rarely applies the herb Safflower (Carthamus tinctorius) to the treatment of tumors and little is known about its mechanisms and the treatment of Safflower for melanoma.
This study aims to analyze the active ingredients and underlying mechanisms of Safflower in treating melanoma using network pharmacology, molecular docking, and in vitro experiments and provide a new direction for the research and development of new drugs for melanoma treatment.
We collected the active chemical ingredients from Safflower and generated a network of “Drug-Active Ingredient-Target” by Cytoscape. From the DrugBank, OMIM, and GeneCard databases, disease-related targets of melanoma were obtained. The intersection target genes between Safflower and melanoma were identified, leading to the construction of a protein-protein interaction (PPI) network via Cytoscape software. Metascape database was used to enrich pathways for relative targets of Safflower. Molecular docking was demonstrated by the software AutoDockTools-1.5.6. Use an online database (https://xenabrowser.net/) and R package IOBR (version 0.99.9) to evaluate the correlation between the core target genes and prognosis or the immune score. CCK8 and PCR were used to detect the toxicity of quercetin on melanoma cells and its effects on mRNA expression of AKT1, JUN, and TP53.
Our investigation identified 17 active pharmaceutical ingredients within Safflower alongside 94 potential targets related to melanoma treatment. Gene Ontology (GO) analysis is primarily concerned with extracellular exosomes, positive regulation of transcription from RNA polymerase II promoter, and protein binding. KEGG pathway enrichment analysis mainly involves Pathways in cancer, IL-17 signaling pathway, AGE-RAGE signaling pathway, and other pathways. Using molecular docking, it can be seen that the compounds Quercetin, kaempferol, luteolin, baicalein, and beta-sitosterol in Safflower have strong binding abilities with important targets. The results of survival analysis and immune score analysis suggest that Safflower may regulate the immune cell infiltration of melanoma patients by acting on core target genes and improving the prognosis of patients. In vitro analysis confirmed that Quercetin was cytotoxic toward B16-F10 cells and altered mRNA expression of AKT1, JUN, and TP53 identified through the network pharmacology approach.
This work offered an active pharmaceutical ingredient in Safflower and potential targets for melanoma, and the mechanism of its action on melanoma may be related to the regulation of immune-related pathways in melanoma.