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Chemical composition and anticancer activity of Psychotria montana on MCF7 breast cancer cells: insights from in vitro (2D & 3D) studies and in silico analysis

H. Van Hung, T. Kieu Oanh Nguyen, P. H. Nguyen, T. T. H. Le, V. Hoang

. 2025 ; 23 (1) : 12-25. [pub] 20250321

Language English Country Czech Republic

Document type Journal Article

Persistent link   https://www.medvik.cz/link/bmc25011861

AIM: This study aimed to investigate the phytochemical composition of Psychotria montana extract (PME) and evaluate its inhibitory effects on MCF7 breast cancer cells. METHODS: The chemical composition of PME was analyzed using UPLC-QToF-MS. The effects of PME on cell proliferation were evaluated using the MTT assay. Flow cytometry was used for cell cycle and apoptosis analysis. The effects of PME on the transcription of cell cycle control genes were assessed using real-time PCR. RESULTS: UPLC-QToF-MS analysis revealed major compounds of PME, including terpenoids and flavonoids, with the potential to inhibit proliferation, migration, and induce apoptosis in MCF7 cancer cells. PME effectively suppressed MCF7 cell proliferation under 2D culture, with a low IC50 value of 34.7 μg/ml. PME also hindered cell migration (p < 0.01) and reduced spheroid number (p < 0.001) and size (p < 0.001) in serum-free 3D culture. Apoptosis analysis via nuclear staining with DAPI and flow cytometry revealed an increase in the number of apoptotic cells after PME treatment (p < 0.001). Additionally, the PME induced cell cycle arrest at the G0/G1 phase (p < 0.05). PME altered the expression of cell cycle control genes (cyclins and CDKs) as well as cancer suppressor genes including p16, p27, and p53 at the transcriptional level (mRNA). The results of molecular docking suggest that the compounds present in PME exhibit a high binding affinity for CDK3, CDK4, CDK6, and CDK8 proteins, which are essential regulators of the cell cycle. CONCLUSION: Psychotria montana has the potential to inhibit cancer cells by inducing apoptosis and halting the cell cycle of MCF7 breast cancer cells.

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$a AIM: This study aimed to investigate the phytochemical composition of Psychotria montana extract (PME) and evaluate its inhibitory effects on MCF7 breast cancer cells. METHODS: The chemical composition of PME was analyzed using UPLC-QToF-MS. The effects of PME on cell proliferation were evaluated using the MTT assay. Flow cytometry was used for cell cycle and apoptosis analysis. The effects of PME on the transcription of cell cycle control genes were assessed using real-time PCR. RESULTS: UPLC-QToF-MS analysis revealed major compounds of PME, including terpenoids and flavonoids, with the potential to inhibit proliferation, migration, and induce apoptosis in MCF7 cancer cells. PME effectively suppressed MCF7 cell proliferation under 2D culture, with a low IC50 value of 34.7 μg/ml. PME also hindered cell migration (p < 0.01) and reduced spheroid number (p < 0.001) and size (p < 0.001) in serum-free 3D culture. Apoptosis analysis via nuclear staining with DAPI and flow cytometry revealed an increase in the number of apoptotic cells after PME treatment (p < 0.001). Additionally, the PME induced cell cycle arrest at the G0/G1 phase (p < 0.05). PME altered the expression of cell cycle control genes (cyclins and CDKs) as well as cancer suppressor genes including p16, p27, and p53 at the transcriptional level (mRNA). The results of molecular docking suggest that the compounds present in PME exhibit a high binding affinity for CDK3, CDK4, CDK6, and CDK8 proteins, which are essential regulators of the cell cycle. CONCLUSION: Psychotria montana has the potential to inhibit cancer cells by inducing apoptosis and halting the cell cycle of MCF7 breast cancer cells.
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