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Synthesis and cytotoxic activity of triterpenoids with N,O-heterocyclic fragments based on 2-formyl-1(2)-ene derivative of methyldihydrobetulonate. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-022-02624-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Moiseeva N, Eroshenko D, Laletina L, Rybalkina E, Susova O, Karamysheva A, Tolmacheva I, Nazarov M, Grishko V. The Molecular Mechanisms of Oleanane Aldehyde-β-enone Cytotoxicity against Doxorubicin-Resistant Cancer Cells. BIOLOGY 2023; 12:biology12030415. [PMID: 36979107 PMCID: PMC10045559 DOI: 10.3390/biology12030415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
Oleanane aldehyde-β-enone (OA), being the semi-synthetic derivative of the triterpenoid betulin, effectively inhibits the proliferation of HBL-100 and K562 cancer cells (IC50 0.47–0.53 µM), as well as the proliferation of their resistant subclones with high P-gp expression HBL-100/Dox, K562/i-S9 and K562/i-S9_Dox (IC50 0.45−1.24 µM). A molecular docking study, rhodamine efflux test, synergistic test with Dox, and ABC transporter gene expression were used to investigate the ability of OA to act as a P-gp substrate or inhibitor against Dox-resistant cells. We noted a trend toward a decrease in ABCB1, ABCC1 and ABCG2 expression in HBL-100 cells treated with OA. The in silico and in vitro methods suggested that OA is neither a direct inhibitor nor a competitive substrate of P-gp in overexpressing P-gp cancer cells. Thus, OA is able to overcome cellular resistance and can accumulate in Dox-resistant cells to realize toxic effects. The set of experiments suggested that OA toxic action can be attributed to activating intrinsic/extrinsic or only intrinsic apoptosis pathways in Dox-sensitive and Dox-resistant cancer cells, respectively. The cytotoxicity of OA in resistant cells is likely mediated by a mitochondrial cell death pathway, as demonstrated by positive staining with Annexin V–FITC, an increasing number of cells in the subG0/G1 phase, reactive oxygen species generation, mitochondrial dysfunction, cytochrome c migration and caspases-9,-6 activation.
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Affiliation(s)
- Natalia Moiseeva
- The N.N. Blokhin National Medical Research Center of Oncology, Health Ministry of Russia, 115478 Moscow, Russia
| | - Daria Eroshenko
- Institute of Technical Chemistry, Perm Federal Scientific Centre, Ural Branch, Russian Academy of Science, 614013 Perm, Russia
| | - Lidia Laletina
- The N.N. Blokhin National Medical Research Center of Oncology, Health Ministry of Russia, 115478 Moscow, Russia
| | - Ekaterina Rybalkina
- The N.N. Blokhin National Medical Research Center of Oncology, Health Ministry of Russia, 115478 Moscow, Russia
| | - Olga Susova
- The N.N. Blokhin National Medical Research Center of Oncology, Health Ministry of Russia, 115478 Moscow, Russia
| | - Aida Karamysheva
- The N.N. Blokhin National Medical Research Center of Oncology, Health Ministry of Russia, 115478 Moscow, Russia
| | - Irina Tolmacheva
- Institute of Technical Chemistry, Perm Federal Scientific Centre, Ural Branch, Russian Academy of Science, 614013 Perm, Russia
| | - Mikhail Nazarov
- Institute of Technical Chemistry, Perm Federal Scientific Centre, Ural Branch, Russian Academy of Science, 614013 Perm, Russia
| | - Victoria Grishko
- Institute of Technical Chemistry, Perm Federal Scientific Centre, Ural Branch, Russian Academy of Science, 614013 Perm, Russia
- Correspondence:
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Denisov MS, Beloglazova YА, Glushkov VА. Microwave synthesis of triterpenoid-annulated imidazo[1,2-a]pyridines. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03091-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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