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Li T, Jiang S, Li T, Xu H, Zhang X, Yan R, Wu X, Jin Y, Wang Z. Exploring the Potential of Cyclic Peptidyl Antitumor Agents Derived from Natural Macrocyclic Peptide Phakellistatin 13. J Med Chem 2024; 67:11789-11813. [PMID: 38990190 DOI: 10.1021/acs.jmedchem.4c00393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
The exploration of novel anticancer compounds based on natural cyclopeptides has emerged as a pivotal paradigm in the contemporary advancement of macrocyclic pharmaceuticals. Phakellistatin 13 is a cycloheptapeptide derived from the brown snubby sponge and exhibits remarkable antitumor activity. In this study, we have designed and synthesized a series of chiral cyclopeptides incorporating the rigid isoindolinone moiety at various sites within the natural cycloheptapeptide Phakellistatin 13, with the aim of investigating conformationally constrained cyclopeptides as potential antitumor agents. Cyclopeptide 3, comprising alternating l-/d-amino acid residues, exhibited promising antihepatocellular carcinoma effects. Detailed biological experiments have revealed that Phakellistatin 13 analogs effectively inhibit the proliferation of tumor cells and induce apoptosis and autophagy, while also causing cell cycle arrest through the modulation of the p53 and mitogen-activated protein kinase (MAPK) signaling pathway. This study not only provides valuable insights into chemical structural modifications but also contributes to a deeper understanding of the biological mechanisms underlying the development of natural cyclopeptide-based drugs.
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Affiliation(s)
- Tong Li
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Shitian Jiang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Tingting Li
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Hongyu Xu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Xiong Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Rui Yan
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Xiaodan Wu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Yingxue Jin
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Zhiqiang Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
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Grigoreva TA, Novikova DS, Melino G, Barlev NA, Tribulovich VG. Ubiquitin recruiting chimera: more than just a PROTAC. Biol Direct 2024; 19:55. [PMID: 38978100 PMCID: PMC11232244 DOI: 10.1186/s13062-024-00497-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 06/26/2024] [Indexed: 07/10/2024] Open
Abstract
Ubiquitinylation of protein substrates results in various but distinct biological consequences, among which ubiquitin-mediated degradation is most well studied for its therapeutic application. Accordingly, artificially targeted ubiquitin-dependent degradation of various proteins has evolved into the therapeutically relevant PROTAC technology. This tethered ubiquitinylation of various targets coupled with a broad assortment of modifying E3 ubiquitin ligases has been made possible by rational design of bi-specific chimeric molecules that bring these proteins in proximity. However, forced ubiquitinylation inflicted by the binary warheads of a chimeric PROTAC molecule should not necessarily result in protein degradation but can be used to modulate other cellular functions. In this respect it should be noted that the ubiquitinylation of a diverse set of proteins is known to control their transport, transcriptional activity, and protein-protein interactions. This review provides examples of potential PROTAC usage based on non-degradable ubiquitinylation.
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Affiliation(s)
- Tatyana A Grigoreva
- Laboratory of Molecular Pharmacology, St. Petersburg State Institute of Technology (Technical University), St. Petersburg, 190013, Russia.
| | - Daria S Novikova
- Laboratory of Molecular Pharmacology, St. Petersburg State Institute of Technology (Technical University), St. Petersburg, 190013, Russia
| | - Gerry Melino
- Department of Experimental Medicine, University of Rome Tor Vergata, Rome, 00133, Italy
| | - Nick A Barlev
- Institute of Cytology RAS, Saint-Petersburg, 194064, Russia
- Department of Biomedical Studies, School of Medicine, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Vyacheslav G Tribulovich
- Laboratory of Molecular Pharmacology, St. Petersburg State Institute of Technology (Technical University), St. Petersburg, 190013, Russia.
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3
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Wang W, Albadari N, Du Y, Fowler JF, Sang HT, Xian W, McKeon F, Li W, Zhou J, Zhang R. MDM2 Inhibitors for Cancer Therapy: The Past, Present, and Future. Pharmacol Rev 2024; 76:414-453. [PMID: 38697854 PMCID: PMC11068841 DOI: 10.1124/pharmrev.123.001026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/28/2023] [Accepted: 01/16/2024] [Indexed: 05/05/2024] Open
Abstract
Since its discovery over 35 years ago, MDM2 has emerged as an attractive target for the development of cancer therapy. MDM2's activities extend from carcinogenesis to immunity to the response to various cancer therapies. Since the report of the first MDM2 inhibitor more than 30 years ago, various approaches to inhibit MDM2 have been attempted, with hundreds of small-molecule inhibitors evaluated in preclinical studies and numerous molecules tested in clinical trials. Although many MDM2 inhibitors and degraders have been evaluated in clinical trials, there is currently no Food and Drug Administration (FDA)-approved MDM2 inhibitor on the market. Nevertheless, there are several current clinical trials of promising agents that may overcome the past failures, including agents granted FDA orphan drug or fast-track status. We herein summarize the research efforts to discover and develop MDM2 inhibitors, focusing on those that induce MDM2 degradation and exert anticancer activity, regardless of the p53 status of the cancer. We also describe how preclinical and clinical investigations have moved toward combining MDM2 inhibitors with other agents, including immune checkpoint inhibitors. Finally, we discuss the current challenges and future directions to accelerate the clinical application of MDM2 inhibitors. In conclusion, targeting MDM2 remains a promising treatment approach, and targeting MDM2 for protein degradation represents a novel strategy to downregulate MDM2 without the side effects of the existing agents blocking p53-MDM2 binding. Additional preclinical and clinical investigations are needed to finally realize the full potential of MDM2 inhibition in treating cancer and other chronic diseases where MDM2 has been implicated. SIGNIFICANCE STATEMENT: Overexpression/amplification of the MDM2 oncogene has been detected in various human cancers and is associated with disease progression, treatment resistance, and poor patient outcomes. This article reviews the previous, current, and emerging MDM2-targeted therapies and summarizes the preclinical and clinical studies combining MDM2 inhibitors with chemotherapy and immunotherapy regimens. The findings of these contemporary studies may lead to safer and more effective treatments for patients with cancers overexpressing MDM2.
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Affiliation(s)
- Wei Wang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Najah Albadari
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Yi Du
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Josef F Fowler
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Hannah T Sang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Wa Xian
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Frank McKeon
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Wei Li
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Jia Zhou
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
| | - Ruiwen Zhang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy (W.W., Y.D., J.F.F., H.T.S., R.Z.), Drug Discovery Institute (W.W., R.Z.), Stem Cell Center, Department of Biology and Biochemistry (W.X., F.M.), University of Houston, Houston, Texas; College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee (N.A., W.L.); and Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas (J.Z.)
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4
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Grigoreva TA, Vorona SV, Novikova DS, Tribulovich VG. Analysis of P-Glycoprotein Transport Cycle Reveals a New Way to Identify Efflux Inhibitors. ACS OMEGA 2022; 7:42835-42844. [PMID: 36467933 PMCID: PMC9713869 DOI: 10.1021/acsomega.2c04768] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
P-glycoprotein (P-gp) is found to be of considerable interest for the design of drugs capable of treating chemoresistant tumors. This transporter is an interesting target for which an efficient approach has not yet been developed in terms of computer simulation. In this work, we use a combination of docking, molecular dynamics, and metadynamics to fully explore the states that occur during the capture of a ligand and subsequent efflux by P-gp. The proposed approach allowed us to substantiate a number of experimentally established facts, as well as to develop a new criterion for identifying potential P-gp inhibitors.
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5
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Haronikova L, Bonczek O, Zatloukalova P, Kokas-Zavadil F, Kucerikova M, Coates PJ, Fahraeus R, Vojtesek B. Resistance mechanisms to inhibitors of p53-MDM2 interactions in cancer therapy: can we overcome them? Cell Mol Biol Lett 2021; 26:53. [PMID: 34911439 PMCID: PMC8903693 DOI: 10.1186/s11658-021-00293-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/05/2021] [Indexed: 12/13/2022] Open
Abstract
Since the discovery of the first MDM2 inhibitors, we have gained deeper insights into the cellular roles of MDM2 and p53. In this review, we focus on MDM2 inhibitors that bind to the p53-binding domain of MDM2 and aim to disrupt the binding of MDM2 to p53. We describe the basic mechanism of action of these MDM2 inhibitors, such as nutlin-3a, summarise the determinants of sensitivity to MDM2 inhibition from p53-dependent and p53-independent points of view and discuss the problems with innate and acquired resistance to MDM2 inhibition. Despite progress in MDM2 inhibitor design and ongoing clinical trials, their broad use in cancer treatment is not fulfilling expectations in heterogenous human cancers. We assess the MDM2 inhibitor types in clinical trials and provide an overview of possible sources of resistance to MDM2 inhibition, underlining the need for patient stratification based on these aspects to gain better clinical responses, including the use of combination therapies for personalised medicine.
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Affiliation(s)
- Lucia Haronikova
- RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic.
| | - Ondrej Bonczek
- RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic
- Department of Medical Biosciences, Umea University, 901 87, Umea, Vasterbotten, Sweden
| | - Pavlina Zatloukalova
- RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic
| | - Filip Kokas-Zavadil
- RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic
| | - Martina Kucerikova
- RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic
- National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Philip J Coates
- RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic
| | - Robin Fahraeus
- RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic
- Department of Medical Biosciences, Umea University, 901 87, Umea, Vasterbotten, Sweden
- Inserm UMRS1131, Institut de Génétique Moléculaire, Université Paris 7, Hôpital St. Louis, 75010, Paris, France
| | - Borivoj Vojtesek
- RECAMO, Masaryk Memorial Cancer Institute, Zluty kopec 7, 656 53, Brno, Czech Republic.
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6
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Novikova DS, Grigoreva TA, Ivanov GS, Melino G, Barlev NA, Tribulovich VG. Activating Effect of 3‐Benzylidene Oxindoles on AMPK: From Computer Simulation to High‐Content Screening. ChemMedChem 2020; 15:2521-2529. [DOI: 10.1002/cmdc.202000579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Daria S. Novikova
- Laboratory of Molecular Pharmacology Saint Petersburg State Institute of Technology (Technical University) Moskovskii pr. 26 190013 Saint Petersburg Russia
| | - Tatyana A. Grigoreva
- Laboratory of Molecular Pharmacology Saint Petersburg State Institute of Technology (Technical University) Moskovskii pr. 26 190013 Saint Petersburg Russia
| | - Gleb S. Ivanov
- Laboratory of Molecular Pharmacology Saint Petersburg State Institute of Technology (Technical University) Moskovskii pr. 26 190013 Saint Petersburg Russia
- Laboratory of Regulation of Gene Expression Institute of Cytology RAS Tikhoretskii pr. 4 194064 Saint Petersburg Russia
| | - Gerry Melino
- Department of Experimental Medicine and Surgery University of Rome Tor Vergata Via Montpellier 1 00133 Rome Italy
| | - Nickolai A. Barlev
- Laboratory of Regulation of Gene Expression Institute of Cytology RAS Tikhoretskii pr. 4 194064 Saint Petersburg Russia
| | - Vyacheslav G. Tribulovich
- Laboratory of Molecular Pharmacology Saint Petersburg State Institute of Technology (Technical University) Moskovskii pr. 26 190013 Saint Petersburg Russia
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Barcherini V, Almeida J, Lopes EA, Wang M, Magalhães E Silva D, Mori M, Wang S, Saraiva L, Santos MMM. Potency and Selectivity Optimization of Tryptophanol-Derived Oxazoloisoindolinones: Novel p53 Activators in Human Colorectal Cancer. ChemMedChem 2020; 16:250-258. [PMID: 32737944 DOI: 10.1002/cmdc.202000522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Indexed: 12/16/2022]
Abstract
To search for novel p53 activators, four series of novel (S)- and (R)-tryptophanol-derived oxazoloisoindolinones were synthesized in a straightforward manner and their antiproliferative activity was evaluated in the human colorectal cancer HCT116 cell line. Structural optimization of the hit compound SLMP53-1 led to the identification of a (R)-tryptophanol-derived isoindolinone that was found to be six-fold more active, with increased selectivity for HCT116 cells with p53 and with low toxicity in normal cells. Binding studies with MDM2 showed that the antiproliferative activity of tryptophanol-derived isoindolinones does not involve inhibition of the main negative regulator of the p53 protein. Molecular docking simulations showed that although these molecules establish hydrophobic interactions with MDM2, they do not possess the required features to bind MDM2.
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Affiliation(s)
- Valentina Barcherini
- Department of Therapeutic and Pharmaceutical Chemistry, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Joana Almeida
- Department of Biological Sciences, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Elizabeth A Lopes
- Department of Therapeutic and Pharmaceutical Chemistry, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Mi Wang
- Rogel Cancer Center, Medical School, University of Michigan, Ann Arbor, MI 48109, USA
| | - Diogo Magalhães E Silva
- Department of Therapeutic and Pharmaceutical Chemistry, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
| | - Mattia Mori
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, via Aldo Moro 2, 53100, Siena, Italy
| | - Shaomeng Wang
- Rogel Cancer Center, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lucília Saraiva
- Department of Biological Sciences, University of Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Maria M M Santos
- Department of Therapeutic and Pharmaceutical Chemistry, University of Lisbon, Av. Prof. Gama Pinto, 1649-003, Lisboa, Portugal
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Grigoreva T, Romanova A, Sagaidak A, Vorona S, Novikova D, Tribulovich V. Mdm2 inhibitors as a platform for the design of P-glycoprotein inhibitors. Bioorg Med Chem Lett 2020; 30:127424. [DOI: 10.1016/j.bmcl.2020.127424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/06/2020] [Accepted: 07/16/2020] [Indexed: 01/21/2023]
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9
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Kayukov YS, Grigor’ev AA, Karpov SV, Kayukova OV, Mikhaylov AA. Synthesis of 6-Alkoxy- and
1,6-Dialkoxy-4-amino-1-aryl-3-oxo-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine-7-carbonitriles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020070106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Kayukov YS, Grigor’ev AA, Karpov SV, Kayukova OV. Synthesis of
1-Alkoxy-4-amino-3,6-dioxo-1-phenyl-2,3,5,6-tetrahydro-1H-pyrrolo[3,4-c]pyridine-7-carbonitriles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020060226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Elliott Q, Dos Passos Gomes G, Evoniuk CJ, Alabugin IV. Testing the limits of radical-anionic CH-amination: a 10-million-fold decrease in basicity opens a new path to hydroxyisoindolines via a mixed C-N/C-O-forming cascade. Chem Sci 2020; 11:6539-6555. [PMID: 34094120 PMCID: PMC8159354 DOI: 10.1039/c9sc06511c] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 02/14/2020] [Indexed: 11/21/2022] Open
Abstract
An intramolecular C(sp3)-H amidation proceeds in the presence of t-BuOK, molecular oxygen, and DMF. This transformation is initiated by the deprotonation of an acidic N-H bond and selective radical activation of a benzylic C-H bond towards hydrogen atom transfer (HAT). Cyclization of this radical-anion intermediate en route to a two-centered/three-electron (2c,3e) C-N bond removes electron density from nitrogen. As this electronegative element resists such an "oxidation", making nitrogen more electron rich is key to overcoming this problem. This work dramatically expands the range of N-anions that can participate in this process by using amides instead of anilines. The resulting 107-fold decrease in the N-component basicity (and nucleophilicity) doubles the activation barrier for C-N bond formation and makes this process nearly thermoneutral. Remarkably, this reaction also converts a weak reductant into a much stronger reductant. Such "reductant upconversion" allows mild oxidants like molecular oxygen to complete the first part of the cascade. In contrast, the second stage of NH/CH activation forms a highly stabilized radical-anion intermediate incapable of undergoing electron transfer to oxygen. Because the oxidation is unfavored, an alternative reaction path opens via coupling between the radical anion intermediate and either superoxide or hydroperoxide radical. The hydroperoxide intermediate transforms into the final hydroxyisoindoline products under basic conditions. The use of TEMPO as an additive was found to activate less reactive amides. The combination of experimental and computational data outlines a conceptually new mechanism for conversion of unprotected amides into hydroxyisoindolines proceeding as a sequence of C-H amidation and C-H oxidation.
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Affiliation(s)
- Quintin Elliott
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Gabriel Dos Passos Gomes
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Christopher J Evoniuk
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
| | - Igor V Alabugin
- Department of Chemistry and Biochemistry, Florida State University Tallahassee Florida 32306 USA
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12
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Simulation of MDM2 N-terminal domain conformational lability in the presence of imidazoline based inhibitors of MDM2-p53 protein–protein interaction. J Comput Aided Mol Des 2019; 34:55-70. [DOI: 10.1007/s10822-019-00260-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 11/21/2019] [Indexed: 12/18/2022]
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13
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Ciechańska M, Jóźwiak A, Nazarski RB, Skorupska EA. Unexpected Rearrangement of Dilithiated Isoindoline-1,3-diols into 3-Aminoindan-1-ones via N-Lithioaminoarylcarbenes: A Combined Synthetic and Computational Study. J Org Chem 2019; 84:11425-11440. [PMID: 31449415 DOI: 10.1021/acs.joc.9b01217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of 2-aryl-3-hydroxyisoindolin-1-ones with the s-BuLi·TMEDA system in THF at -78 °C, affording a series of diastereomeric 3-aminoindan-1-ones via a novel rearrangement of the isoindolinone scaffold, is reported. It is proposed that α-elimination of LiOH from the transient N,O-dilithiated hemiaminal carbenoids leads to the formation of singlet carbenes followed by their trapping via an intramolecular C-H insertion. An alternative explanation based on an intramolecular Mannich reaction seem much less probable. A mechanistic-type study that combines spectroscopic data of the products and calculation results, with a special focus on the diverse lithiated intermediates that are most likely to engage in the title process (particularly those with internal Li bonds), is presented. The MP2 approach, including the NPA and QTAIM data, provided insight into structures and properties of all these species. Two reaction routes A and B appeared to be possible for the postulated carbene mechanism. An unusual metamorphosis of the CCN atom triad, from a near sp 1-azaallene-type in more stable noncarbene Li enolates to a roughly sp2 type in their carbene keto tautomers, is recognized in one of these pathways (route B). Dominant forms of resonance structures for the aforementioned tautomeric systems that have seven-membered quasi rings stabilized by Li+ ions bridging the N and carbonyl O atoms are indicated. Large computational difficulties arising from a huge impact of internal Li+ complexation on conformational preferences and electronic properties of carbonyl group-bearing lithium derivatives are also discussed. The new γ-keto carbene species under study belong to a subclass of acyclic aminoarylcarbenes.
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Affiliation(s)
- Magdalena Ciechańska
- Department of Organic Chemistry, Faculty of Chemistry , University of Lodz , Tamka 12 , 91-403 Łódź , Poland
| | - Andrzej Jóźwiak
- Department of Organic Chemistry, Faculty of Chemistry , University of Lodz , Tamka 12 , 91-403 Łódź , Poland
| | - Ryszard B Nazarski
- Theoretical and Structural Chemistry Group, Department of Physical Chemistry, Faculty of Chemistry , University of Lodz , Pomorska 163/165 , 90-236 Łódź , Poland
| | - Ewa A Skorupska
- Department of Organic Chemistry, Faculty of Chemistry , University of Lodz , Tamka 12 , 91-403 Łódź , Poland
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14
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Muszak D, Łabuzek B, Brela MZ, Twarda-Clapa A, Czub M, Musielak B, Surmiak E, Holak TA. The synthesis and characterization of tetramic acid derivatives as Mdm2-p53 inhibitors. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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15
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Novikova DS, Grigoreva TA, Zolotarev AA, Garabadzhiu AV, Tribulovich VG. Advanced palladium free approach to the synthesis of substituted alkene oxindoles via aluminum-promoted Knoevenagel reaction. RSC Adv 2018; 8:34543-34551. [PMID: 35548634 PMCID: PMC9086994 DOI: 10.1039/c8ra07576j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 10/02/2018] [Indexed: 11/22/2022] Open
Abstract
A synthetic route for the synthesis of C24, as well as for the design of focused libraries of direct AMPK activators was developed based on a convergent strategy. The proposed scheme corresponds to the current trends in C-H bond functionalization. The use of aluminum isopropoxide for the Knoevenagel condensation of oxindole with benzophenones is a noticeable point of this work.
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Affiliation(s)
- Daria S Novikova
- Laboratory of Molecular Pharmacology, Saint Petersburg State Institute of Technology (Technical University) Moskovskii pr. 26 Saint Petersburg 190013 Russia
| | - Tatyana A Grigoreva
- Laboratory of Molecular Pharmacology, Saint Petersburg State Institute of Technology (Technical University) Moskovskii pr. 26 Saint Petersburg 190013 Russia
| | - Andrey A Zolotarev
- Department of Crystallography, Saint Petersburg State University per. Dekabristov 16 Saint Petersburg 199155 Russia
| | - Alexander V Garabadzhiu
- Laboratory of Molecular Pharmacology, Saint Petersburg State Institute of Technology (Technical University) Moskovskii pr. 26 Saint Petersburg 190013 Russia
| | - Vyacheslav G Tribulovich
- Laboratory of Molecular Pharmacology, Saint Petersburg State Institute of Technology (Technical University) Moskovskii pr. 26 Saint Petersburg 190013 Russia
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16
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Ran X, Gestwicki JE. Inhibitors of protein-protein interactions (PPIs): an analysis of scaffold choices and buried surface area. Curr Opin Chem Biol 2018; 44:75-86. [PMID: 29908451 DOI: 10.1016/j.cbpa.2018.06.004] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 06/04/2018] [Indexed: 12/17/2022]
Abstract
Protein-protein interactions (PPI) were once considered 'undruggable', but clinical successes, driven by advanced methods in drug discovery, have challenged that notion. Here, we review the last three years of literature on PPI inhibitors to understand what is working and why. From the 66 recently reported PPI inhibitors, we found that the average molecular weight was significantly greater than 500Da, but that this trend was driven, in large part, by the contribution of peptide-based compounds. Despite differences in average molecular weight, we found that compounds based on small molecules or peptides were almost equally likely to be potent inhibitors (KD<1μM). Finally, we found PPIs with buried surface area (BSA) less than 2000Å2 were more likely to be inhibited by small molecules, while PPIs with larger BSA values were typically inhibited by peptides. PPIs with BSA values over 4000Å2 seemed to create a particular challenge, especially for orthosteric small molecules. Thus, it seems important to choose the inhibitor scaffold based on the properties of the target interaction. Moreover, this survey suggests a (more nuanced) conclusion to the question of whether PPIs are good drug targets; namely, that some PPIs are readily 'druggable' given the right choice of scaffold, while others still seem to deserve the 'undruggable' moniker.
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Affiliation(s)
- Xu Ran
- Institute for Neurodegenerative Diseases and Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, United States
| | - Jason E Gestwicki
- Institute for Neurodegenerative Diseases and Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA 94158, United States.
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17
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Krasavin M, Gureyev MA, Dar'in D, Bakulina O, Chizhova M, Lepikhina A, Novikova D, Grigoreva T, Ivanov G, Zhumagalieva A, Garabadzhiu AV, Tribulovich VG. Design, in silico prioritization and biological profiling of apoptosis-inducing lactams amenable by the Castagnoli-Cushman reaction. Bioorg Med Chem 2018; 26:2651-2673. [DOI: 10.1016/j.bmc.2018.04.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/16/2018] [Accepted: 04/16/2018] [Indexed: 12/24/2022]
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18
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Grigoreva TA, Novikova DS, Gureev MA, Garabadzhiu AV, Tribulovich VG. Amino acids as chiral derivatizing agents for antiproliferative substituted N-benzyl isoindolinones. Chirality 2018; 30:785-797. [DOI: 10.1002/chir.22854] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/12/2018] [Accepted: 02/25/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Tatyana A. Grigoreva
- Laboratory of Molecular Pharmacology; St. Petersburg State Institute of Technology (Technical University); St. Petersburg Russia
| | - Daria S. Novikova
- Laboratory of Molecular Pharmacology; St. Petersburg State Institute of Technology (Technical University); St. Petersburg Russia
| | - Maxim A. Gureev
- Laboratory of Molecular Pharmacology; St. Petersburg State Institute of Technology (Technical University); St. Petersburg Russia
| | - Alexander V. Garabadzhiu
- Laboratory of Molecular Pharmacology; St. Petersburg State Institute of Technology (Technical University); St. Petersburg Russia
| | - Vyacheslav G. Tribulovich
- Laboratory of Molecular Pharmacology; St. Petersburg State Institute of Technology (Technical University); St. Petersburg Russia
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19
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Orlova DD, Novikova DS, Garabadzhiu AV, Tribulovich VG. A Study on Hydrolytic Stability of Isatin N-Mannich Bases. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218010085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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