J Ethnopharmacol. 2026 Mar 02. pii: S0378-8741(26)00311-9. [Epub ahead of print]
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ETHNOPHARMACOLOGICAL RELEVANCE: Aloperine (ALO), an alkaloid derived from Sophora alopecuroides L., demonstrates therapeutic potential against malignant tumors, while the role of ALO and its molecular mechanisms in ovarian cancer remain unclear.
AIM OF THE STUDY: This study aims to systematically investigate the efficacy and molecular mechanisms of ALO against ovarian cancer by integrating network pharmacology and metabolomics.
MATERIALS AND METHODS: The anti-tumor effect of ALO on ovarian cancer cells was evaluated using CCK-8, colony formation, cell scratch and transwell invasion assay in vitro. An ovarian cancer xenograft mouse model was used to evaluate the anti-ovarian cancer effect of ALO in vivo. Potential targets of ALO in ovarian cancer were predicted via network pharmacology, and the binding affinity of ALO to the potential targets was analyzed using molecular docking techniques. High-performance liquid chromatography-mass spectrometry (HPLC-MS) was used to identify the different metabolites of ALO and their metabolic pathways in ovarian cancer cells, followed by multi-level integrated analysis of network pharmacology and metabolomics results. Metabolite detection kits, western blotting, and qPCR were employed to validate the involved metabolites and their associated target genes.
RESULTS: ALO suppressed the proliferation, migration and invasion of ovarian cancer cells SKOV-3 and ES-2 in a dose dependent manner in vitro. Correspondingly, ALO inhibited the growth of ovarian cancer xenografts in vivo. Network pharmacology and molecular docking analysis revealed Mouse double minute 2 homolog (MDM2), Janus kinase 2 (JAK2), Cyclin-dependent kinase 2 (CDK2), Myeloperoxidase (MPO), Janus kinase 1(JAK1) and Androgen receptor (AR) as the potential targets of ALO in ovarian cancer. While metabolomics analysis showed that ALO increases citrate acid and α-ketoglutarate (α-KG) levels in ovarian cancer cells. The integrated metabolomics, network pharmacology, and molecular docking identified that ALO primarily affects the tricarboxylic acid cycle (TCA cycle) and three hub genes, including MDM2, JAK2, and CDK2. In the experimental validation, ALO treatment increased the levels of key metabolites citrate acid and α-KG in the TCA cycle in ovarian cancer cells, while suppressed the levels of pyruvate and lactate, the primary metabolites of glycolysis, ultimately leading to a reduction in cellular ATP content. Moreover, ALO suppressed the glycolytic protein expression of GLUT1, PKM2 and LDHA in ovarian cancer cells. MDM2, JAK2, and CDK2 were identified as the most promising targets of ALO in ovarian cancer.
CONCLUSION: ALO demonstrates anti-ovarian cancer effects both in vitro and in vivo through the enhancement of TCA cycle and reversing of aerobic glycolysis in ovarian cancer cells, providing a robust experimental foundation for future investigation of the potential clinical utility of ALO in ovarian cancer therapy.
Keywords: ALO; TCA; glycolysis; metabolomics; network pharmacology; ovarian cancer