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Tripathi R, Anifowose A, Lu W, Yang X, Wang B. Upregulation of p53 through induction of MDM2 degradation: improved potency through the introduction of an alkylketone sidechain on the anthraquinone core. J Enzyme Inhib Med Chem 2022; 37:2370-2381. [PMID: 36043494 PMCID: PMC9448394 DOI: 10.1080/14756366.2022.2116699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Overexpression of ubiquitin ligase MDM2 causes depletion of the p53 tumour-suppressor and thus leads to cancer progression. In recent years, anthraquinone analogs have received significant attention due to their ability to downregulate MDM2, thereby promoting p53-induced apoptosis. Previously, we have developed potent anthraquinone compounds having the ability to upregulate p53 via inhibition of MDM2 in both cell culture and animal models of acute lymphocytic leukaemia. Earlier work was focussed on mechanistic work, pharmacological validation of this class of compounds in animal models, and mapping out structural space that allows for further modification and optimisation. Herein, we describe our work in optimising the substituents on the two phenol hydroxyl groups. It was found that the introduction of an alkylketone moiety led to a potent series of analogs with BW-AQ-350 being the most potent compound yet (IC50 = 0.19 ± 0.01 µM) which exerts cytotoxicity by inducing MDM2 degradation and p53 upregulation.
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Affiliation(s)
- Ravi Tripathi
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, USA
| | - Abiodun Anifowose
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, USA
| | - Wen Lu
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, USA
| | - Xiaoxiao Yang
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, USA
| | - Binghe Wang
- Department of Chemistry, Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, USA
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Reductive elimination of alkoxy group in anthraquinone derivatives. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kuchur OA, Kuzmina DO, Dukhinova MS, Shtil AA. The p53 Protein Family in the Response of Tumor Cells to Ionizing Radiation: Problem Development. Acta Naturae 2021; 13:65-76. [PMID: 34707898 PMCID: PMC8526179 DOI: 10.32607/actanaturae.11247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 12/24/2020] [Indexed: 12/05/2022] Open
Abstract
Survival mechanisms are activated in tumor cells in response to therapeutic ionizing radiation. This reduces a treatment's effectiveness. The p53, p63, and p73 proteins belonging to the family of proteins that regulate the numerous pathways of intracellular signal transduction play a key role in the development of radioresistance. This review analyzes the p53-dependent and p53-independent mechanisms involved in overcoming the resistance of tumor cells to radiation exposure.
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Affiliation(s)
- O. A. Kuchur
- ITMO University, Saint-Petersburg, 191002 Russia
| | | | | | - A. A. Shtil
- ITMO University, Saint-Petersburg, 191002 Russia
- Blokhin National Medical Research Center of Oncology, Moscow, 115478 Russia
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Volodina YL, Tikhomirov AS, Dezhenkova LG, Ramonova AA, Kononova AV, Andreeva DV, Kaluzhny DN, Schols D, Moisenovich MM, Shchekotikhin AE, Shtil AA. Thiophene-2-carboxamide derivatives of anthraquinone: A new potent antitumor chemotype. Eur J Med Chem 2021; 221:113521. [PMID: 34082225 DOI: 10.1016/j.ejmech.2021.113521] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 02/01/2023]
Abstract
The anthraquinone scaffold has long been known as a source of efficacious antitumor drugs. In particular, the various chemical modifications of the side chains in this scaffold have yielded the compounds potent for the wild type tumor cells, their counterparts with molecular determinants of altered drug response, as well as in vivo settings. Further exploring the chemotype of anticancer heteroarene-fused anthraquinones, we herein demonstrate that derivative of anthra[2,3-b]thiophene-2-carboxamide, (compound 8) is highly potent against a panel of human tumor cell lines and their drug resistant variants. Treatment with submicromolar or low micromolar concentrations of 8 for only 30 min was sufficient to trigger lethal damage of K562 chronic myelogenous leukemia cells. Compound 8 (2.5 μM, 3-6 h) induced an apoptotic cell death as determined by concomitant activation of caspases 3 and 9, cleavage of poly(ADP-ribose) polymerase, increase of Annexin V/propidium iodide double stained cells, DNA fragmentation (subG1 fraction) and a decrease of mitochondrial membrane potential. Neither a significant interaction with double stranded DNA nor strong inhibition of the DNA dependent enzyme topoisomerase 1 by 8 were detectable in cell free systems. Laser scanning confocal microscopy revealed that some amount of 8 was detectable in mitochondria as early as 5 min after the addition to the cells; exposure for 1 h caused significant morphological changes and clustering of mitochondria. The bioisosteric analog 2 in which the thiophene ring was replaced with furan was less active although the patterns of cytotoxicity of both derivatives were similar. These results point at the specific role of the sulfur atom in the antitumor properties of carboxamide derivatives of heteroarene-fused anthraquinone.
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Affiliation(s)
- Yulia L Volodina
- Blokhin Cancer Center, 24 Kashirskoye Shosse, Moscow, 115478, Russia; Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow, 119021, Russia
| | | | - Lyubov G Dezhenkova
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow, 119021, Russia
| | - Alla A Ramonova
- Faculty of Biology, Moscow State University, 1 Leninskie Gory, Moscow, Russia
| | - Anastasia V Kononova
- I.M. Sechenov First Moscow State Medical University, 2 B. Pirogovskaya Street Bld.4, Moscow, 119435, Russia
| | - Daria V Andreeva
- Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow, 119021, Russia
| | - Dmitry N Kaluzhny
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilov Street, 119991, Moscow, Russia
| | - Dominique Schols
- Rega Institute for Medical Research, K.U. Leuven, 3000, Leuven, Belgium
| | | | | | - Alexander A Shtil
- Blokhin Cancer Center, 24 Kashirskoye Shosse, Moscow, 115478, Russia; Gause Institute of New Antibiotics, 11 B. Pirogovskaya Street, Moscow, 119021, Russia
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Anifowose A, Agbowuro AA, Tripathi R, Lu W, Tan C, Yang X, Wang B. Inducing Apoptosis through Upregulation of p53: Structure-Activity Exploration of Anthraquinone Analogs. Med Chem Res 2020; 29:1199-1210. [PMID: 32719577 DOI: 10.1007/s00044-020-02563-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We previously reported a series of p53-elevating anthraquinone compounds with considerable cytotoxicity for acute lymphatic leukemia (ALL) cells. To further develop this class of compounds, we examined the effect of a few key structural features on the anticancer structure-activity relationship in ALL cells. The active analogs showed comparable cytotoxicity and upregulation of p53 but did not induce significant downregulation of MDM2 as seen with the lead compound AQ-101, indicating the importance of the anthraquinone core scaffold for MDM2 regulation. The result from the current study not only contributes to the SAR framework of these anthraquinone derivatives but also opens up new chemical space for further optimization work.
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Affiliation(s)
- Abiodun Anifowose
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Petit Science Center, 100 Piedmont Ave, Atlanta, GA 30303, United States
| | - Ayodeji A Agbowuro
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Petit Science Center, 100 Piedmont Ave, Atlanta, GA 30303, United States
| | - Ravi Tripathi
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Petit Science Center, 100 Piedmont Ave, Atlanta, GA 30303, United States
| | - Wen Lu
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Petit Science Center, 100 Piedmont Ave, Atlanta, GA 30303, United States
| | - Chalet Tan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Mississippi, Oxford, MS
| | - Xiaoxiao Yang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Petit Science Center, 100 Piedmont Ave, Atlanta, GA 30303, United States
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Petit Science Center, 100 Piedmont Ave, Atlanta, GA 30303, United States
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