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Zhang L, Deng R, Guo R, Jiang Y, Guan Y, Chen C, Zhao W, Huang G, Liu L, Du H, Tang D. Recent progress of methods for cuproptosis detection. Front Mol Biosci 2024; 11:1460987. [PMID: 39297074 PMCID: PMC11408227 DOI: 10.3389/fmolb.2024.1460987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Accepted: 08/21/2024] [Indexed: 09/21/2024] Open
Abstract
Varying from other identified cell death pathways, cuproptosis is a new type of regulated cell death characterized by excess Cu ions, abnormal aggregation of lipoylated proteins in TCA cycle, loss of Fe-S cluster proteins, upregulation of HSP70, leading to proteotoxic and oxidative stress. Cuproptosis is highly concerned by scientific community and as the field of cuproptosis further develops, remarkable progress has been made in the verification and mechanism of cuproptosis, and methods used to detect cuproptosis have been continuously improved. According to the characteristic changes of cuproptosis, techniques based on cell death verification, Cu content, morphology, molecular biology of protein levels of cuproptosis-related molecules and biochemical pathways of cuproptosis-related enzyme activity and metabolites of oxidative stress, lipoic acid, TCA cycle, Fe-S cluster proteins, oxidative phosphorylation, cell respiration intensity have been subject to cuproptosis verification and research. In order to further deepen the understanding of detecting cuproptosis, the principle and application of common cuproptosis detection methods are reviewed and categorized in cellular phenomena and molecular mechanism in terms of cell death, Cu content, morphology, molecular biology, biochemical pathways with a flow chart. All the indicating results have been displayed in response to the markers of cuproptosis, their advantages and limitations are summaried, and comparison of cuproptosis and ferroptosis detection is performed in this study. Our collection of methods for cuproptosis detection will provide a great basis for cuproptosis verification and research in the future.
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Affiliation(s)
- Ligang Zhang
- Gene Editing Technology Center of Guangdong Province, School of Medicine, Foshan University, Foshan, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Ruiting Deng
- Beijing Mercer United International Education Consulting Co., Ltd., Guangzhou, China
| | - Raoqing Guo
- State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yawen Jiang
- Gene Editing Technology Center of Guangdong Province, School of Medicine, Foshan University, Foshan, China
| | - Yichen Guan
- Gene Editing Technology Center of Guangdong Province, School of Medicine, Foshan University, Foshan, China
| | - Caiyue Chen
- Gene Editing Technology Center of Guangdong Province, School of Medicine, Foshan University, Foshan, China
| | - Wudi Zhao
- Gene Editing Technology Center of Guangdong Province, School of Medicine, Foshan University, Foshan, China
| | - Guobin Huang
- Gene Editing Technology Center of Guangdong Province, School of Medicine, Foshan University, Foshan, China
| | - Lian Liu
- Gene Editing Technology Center of Guangdong Province, School of Medicine, Foshan University, Foshan, China
| | - Hongli Du
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Dongsheng Tang
- Gene Editing Technology Center of Guangdong Province, School of Medicine, Foshan University, Foshan, China
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2
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Theodosis-Nobelos P, Papagiouvannis G, Rekka EA. A Review on Vitamin E Natural Analogues and on the Design of Synthetic Vitamin E Derivatives as Cytoprotective Agents. Mini Rev Med Chem 2021; 21:10-22. [PMID: 32767937 DOI: 10.2174/1389557520666200807132617] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/09/2020] [Accepted: 06/10/2020] [Indexed: 11/22/2022]
Abstract
Vitamin E, essential for human health, is widely used worldwide for therapeutic or dietary reasons. The differences in the metabolism and excretion of the multiple vitamin E forms are presented in this review. The important steps that influence the kinetics of each form and the distribution and processing of vitamin E forms by the liver are considered. The antioxidant as well as non-antioxidant properties of vitamin E forms are discussed. Finally, synthetic tocopherol and trolox derivatives, based on the design of multitarget directed compounds, are reviewed. It is demonstrated that selected derivatization of vitamin E or trolox structures can produce improved antioxidants, agents against cancer, cardiovascular and neurodegenerative disorders.
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Affiliation(s)
- Panagiotis Theodosis-Nobelos
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotelian University of Thessaloniki, Thessaloniki 54124, Greece
| | - Georgios Papagiouvannis
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotelian University of Thessaloniki, Thessaloniki 54124, Greece
| | - Eleni A Rekka
- Department of Pharmaceutical Chemistry, School of Pharmacy, Aristotelian University of Thessaloniki, Thessaloniki 54124, Greece
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3
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Kumari S, Carmona AV, Tiwari AK, Trippier PC. Amide Bond Bioisosteres: Strategies, Synthesis, and Successes. J Med Chem 2020; 63:12290-12358. [PMID: 32686940 DOI: 10.1021/acs.jmedchem.0c00530] [Citation(s) in RCA: 233] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The amide functional group plays a key role in the composition of biomolecules, including many clinically approved drugs. Bioisosterism is widely employed in the rational modification of lead compounds, being used to increase potency, enhance selectivity, improve pharmacokinetic properties, eliminate toxicity, and acquire novel chemical space to secure intellectual property. The introduction of a bioisostere leads to structural changes in molecular size, shape, electronic distribution, polarity, pKa, dipole or polarizability, which can be either favorable or detrimental to biological activity. This approach has opened up new avenues in drug design and development resulting in more efficient drug candidates introduced onto the market as well as in the clinical pipeline. Herein, we review the strategic decisions in selecting an amide bioisostere (the why), synthetic routes to each (the how), and success stories of each bioisostere (the implementation) to provide a comprehensive overview of this important toolbox for medicinal chemists.
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Affiliation(s)
- Shikha Kumari
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Angelica V Carmona
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Amit K Tiwari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, The University of Toledo, Toledo, Ohio 43614, United States
| | - Paul C Trippier
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.,Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.,UNMC Center for Drug Discovery, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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Synthesis, structure, antioxidant activity, and water solubility of trolox ion conjugates. Saudi Pharm J 2018; 26:84-92. [PMID: 29379338 PMCID: PMC5783810 DOI: 10.1016/j.jsps.2017.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 10/08/2017] [Indexed: 12/03/2022] Open
Abstract
The interaction of trolox with ammonia, alkylamines of different classes, and amino derivatives of heterocyclic compounds, including nitroxyl radicals and alkaloids, led to the production of ammonium salts called ion conjugates (ICs). Five ICs were characterised by X-ray diffraction. This is the first time a wide range of ICs were made from trolox with amines, and ESI-MS data demonstrated they have the potential to generate pseudomolecular [(A−B+) + H]+ ions. For all obtained trolox ICs, a significant increase (1–3 orders of magnitude) in water solubility was achieved while retaining high antioxidant activity. ICs synthesised from two biologically active fragments may be used to create polyfunctional agents with varying solubility and bioavailability.
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5
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Liu P, Wang PS. Palladium-catalyzed Asymmetric Allylic C–H Oxidation for the Formal Synthesis of Gonytolide C. CHEM LETT 2017. [DOI: 10.1246/cl.170406] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Peng Liu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Pu-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
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6
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Synthesis of New Trolox-Based Antioxidants Containing Amino-bis-Phosphonic Acids. Chem Nat Compd 2017. [DOI: 10.1007/s10600-017-2115-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Xiao Y, Lin JB, Zhao YN, Liu JY, Xu PF. Exploring the Reactivity of Nitro-Activated 1,3-Enynes in an Organocatalytic One-Pot, Three-Component Coupling Reaction: A Tandem Catalytic Approach to a Novel 3-Nitrochroman Scaffold. Org Lett 2016; 18:6276-6279. [DOI: 10.1021/acs.orglett.6b03073] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yu Xiao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yin-Na Zhao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jin-Yu Liu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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8
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Antioxidant and antitumor activity of trolox, trolox succinate, and α-tocopheryl succinate conjugates with nitroxides. Eur J Med Chem 2016; 122:127-137. [DOI: 10.1016/j.ejmech.2016.05.051] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/19/2016] [Accepted: 05/22/2016] [Indexed: 01/11/2023]
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9
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Park JY, Shin S, Kim JK, Park KC, Park JH. Synthesis of Benzoisoxazole Derivatives and Evaluation of Inhibitory Potency against Cholinesterase for Alzheimer's Disease Therapeutics. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10891] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jung-Youl Park
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 34158 South Korea
- Industry-Academic Cooperation Foundation; Hanbat National University; Daejeon 34158 South Korea
| | - Sujeong Shin
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 34158 South Korea
| | - Jae-kwan Kim
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 34158 South Korea
| | - Kyoung Chan Park
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 34158 South Korea
| | - Jeong Ho Park
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 34158 South Korea
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Park JY, Shin S, Park KC, Jeong E, Park JH. Synthesis and in vitro Assay of New Triazole Linked Decursinol Derivatives Showing Inhibitory Activity against Cholinesterase for Alzheimer’s Disease Therapeutics. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2016. [DOI: 10.5012/jkcs.2016.60.2.125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Rosselin M, Meyer G, Guillet P, Cheviet T, Walther G, Meister A, Hadjipavlou-Litina D, Durand G. Divalent Amino-Acid-Based Amphiphilic Antioxidants: Synthesis, Self-Assembling Properties, and Biological Evaluation. Bioconjug Chem 2016; 27:772-81. [DOI: 10.1021/acs.bioconjchem.6b00002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marie Rosselin
- Institut des Biomolécules Max Mousseron (UMR 5247 CNRS-Université Montpellier-ENSCM) & Avignon University, Equipe Chimie Bioorganique et Systèmes Amphiphiles, 301 rue Baruch de Spinoza, F-84916 Cedex 9 Avignon, France
| | - Grégory Meyer
- Avignon University, Laboratoire de Pharm-Ecologie
Cardiovasculaire LAPEC EA4278, F-84000 Avignon, France
| | - Pierre Guillet
- Institut des Biomolécules Max Mousseron (UMR 5247 CNRS-Université Montpellier-ENSCM) & Avignon University, Equipe Chimie Bioorganique et Systèmes Amphiphiles, 301 rue Baruch de Spinoza, F-84916 Cedex 9 Avignon, France
| | - Thomas Cheviet
- Institut des Biomolécules Max Mousseron (UMR 5247 CNRS-Université Montpellier-ENSCM) & Avignon University, Equipe Chimie Bioorganique et Systèmes Amphiphiles, 301 rue Baruch de Spinoza, F-84916 Cedex 9 Avignon, France
| | - Guillaume Walther
- Avignon University, Laboratoire de Pharm-Ecologie
Cardiovasculaire LAPEC EA4278, F-84000 Avignon, France
| | - Annette Meister
- Martin Luther University Halle—Wittenberg, Institute of Chemistry and Institute of Biochemistry/Biotechnology, von-Danckelmann-Platz 4, D-06120 Halle/Saale, Germany
| | - Dimitra Hadjipavlou-Litina
- Department
of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health
Sciences, AUTh, Thessaloniki 54124, Greece
| | - Grégory Durand
- Institut des Biomolécules Max Mousseron (UMR 5247 CNRS-Université Montpellier-ENSCM) & Avignon University, Equipe Chimie Bioorganique et Systèmes Amphiphiles, 301 rue Baruch de Spinoza, F-84916 Cedex 9 Avignon, France
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12
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van der Velde JHM, Oelerich J, Huang J, Smit JH, Aminian Jazi A, Galiani S, Kolmakov K, Guoridis G, Eggeling C, Herrmann A, Roelfes G, Cordes T. A simple and versatile design concept for fluorophore derivatives with intramolecular photostabilization. Nat Commun 2016; 7:10144. [PMID: 26751640 PMCID: PMC4729898 DOI: 10.1038/ncomms10144] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 11/05/2015] [Indexed: 11/09/2022] Open
Abstract
Intramolecular photostabilization via triple-state quenching was recently revived as a tool to impart synthetic organic fluorophores with 'self-healing' properties. To date, utilization of such fluorophore derivatives is rare due to their elaborate multi-step synthesis. Here we present a general strategy to covalently link a synthetic organic fluorophore simultaneously to a photostabilizer and biomolecular target via unnatural amino acids. The modular approach uses commercially available starting materials and simple chemical transformations. The resulting photostabilizer-dye conjugates are based on rhodamines, carbopyronines and cyanines with excellent photophysical properties, that is, high photostability and minimal signal fluctuations. Their versatile use is demonstrated by single-step labelling of DNA, antibodies and proteins, as well as applications in single-molecule and super-resolution fluorescence microscopy. We are convinced that the presented scaffolding strategy and the improved characteristics of the conjugates in applications will trigger the broader use of intramolecular photostabilization and help to emerge this approach as a new gold standard.
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Affiliation(s)
- Jasper H M van der Velde
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jens Oelerich
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jingyi Huang
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Jochem H Smit
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Atieh Aminian Jazi
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Silvia Galiani
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Headley Way, Oxford OX3 9DS, UK
| | - Kirill Kolmakov
- Department NanoBiophotonics, Max-Planck-Institute of Molecular Medicine, Am Fassberg 1, 37077 Goettingen, Germany
| | - Giorgos Guoridis
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Christian Eggeling
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Headley Way, Oxford OX3 9DS, UK
| | - Andreas Herrmann
- Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Gerard Roelfes
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Thorben Cordes
- Molecular Microscopy Research Group, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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13
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Yushkova YV, Chernyak EI, Morozov SV, Grigor’ev IA. Antioxidants Based on Covalently and Ionically Bound Trolox Conjugates. Chem Nat Compd 2015. [DOI: 10.1007/s10600-015-1494-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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15
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Wang PS, Liu P, Zhai YJ, Lin HC, Han ZY, Gong LZ. Asymmetric Allylic C–H Oxidation for the Synthesis of Chromans. J Am Chem Soc 2015; 137:12732-5. [DOI: 10.1021/jacs.5b08477] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Pu-Sheng Wang
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Peng Liu
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Yu-Jia Zhai
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hua-Chen Lin
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Zhi-Yong Han
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Liu-Zhu Gong
- Hefei
National Laboratory for Physical Sciences at the Microscale and Department
of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, China
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16
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Kim BC, Lee SH, Jang M, Won MH, Park JH. ( S)-Allyl Cysteine Derivatives as a New-type Cholinesterase Inhibitor. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Beom-Cheol Kim
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 305-719 South Korea
| | - Seung-Hwan Lee
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 305-719 South Korea
| | - Mi Jang
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 305-719 South Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine; Kangwon National University; Chuncheon 200-701 Korea
| | - Jeong Ho Park
- Department of Chemical & Biological Engineering; Hanbat National University; Daejeon 305-719 South Korea
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Koufaki M. Therapeutic applications of lipoic acid: a patent review (2011 – 2014). Expert Opin Ther Pat 2014; 24:993-1005. [DOI: 10.1517/13543776.2014.937425] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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18
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Lee SH, Kim BC, Kim JK, Lee HS, Shon MY, Park JH. Development of Cholinesterase Inhibitors using 1-Benzyl Piperidin-4-yl (α)-Lipoic Amide Molecules. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.6.1681] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Bolognesi ML, Bergamini C, Fato R, Oiry J, Vasseur JJ, Smietana M. Synthesis of New Lipoic Acid Conjugates and Evaluation of Their Free Radical Scavenging and Neuroprotective Activities. Chem Biol Drug Des 2014; 83:688-96. [DOI: 10.1111/cbdd.12282] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 12/06/2013] [Accepted: 01/06/2014] [Indexed: 01/06/2023]
Affiliation(s)
- Maria Laura Bolognesi
- Department of Pharmacy and Biotechnology; University of Bologna; Via Belmeloro 6 and Via Irnerio 4 40126 Bologna Italy
| | - Christian Bergamini
- Department of Pharmacy and Biotechnology; University of Bologna; Via Belmeloro 6 and Via Irnerio 4 40126 Bologna Italy
| | - Romana Fato
- Department of Pharmacy and Biotechnology; University of Bologna; Via Belmeloro 6 and Via Irnerio 4 40126 Bologna Italy
| | - Joël Oiry
- Institut des Biomolecules Max Mousseron; IBMM UMR 5247 CNRS; Université Montpellier 1; Université Montpellier 2; Place Eugène Bataillon 34095 Montpellier France
| | - Jean-Jacques Vasseur
- Institut des Biomolecules Max Mousseron; IBMM UMR 5247 CNRS; Université Montpellier 1; Université Montpellier 2; Place Eugène Bataillon 34095 Montpellier France
| | - Michael Smietana
- Institut des Biomolecules Max Mousseron; IBMM UMR 5247 CNRS; Université Montpellier 1; Université Montpellier 2; Place Eugène Bataillon 34095 Montpellier France
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van der Velde JHM, Ploetz E, Hiermaier M, Oelerich J, de Vries JW, Roelfes G, Cordes T. Mechanism of intramolecular photostabilization in self-healing cyanine fluorophores. Chemphyschem 2013; 14:4084-93. [PMID: 24302532 DOI: 10.1002/cphc.201300785] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Indexed: 11/06/2022]
Abstract
Organic fluorophores, which are popular labels for microscopy applications, intrinsically suffer from transient and irreversible excursions to dark-states. An alternative to adding photostabilizers at high concentrations to the imaging buffer relies on the direct linkage to the fluorophore. However, the working principles of this approach are not yet fully understood. In this contribution, we investigate the mechanism of intramolecular photostabilization in self-healing cyanines, in which photodamage is automatically repaired. Experimental evidence is provided to demonstrate that a single photostabilizer, that is, the vitamin E derivative Trolox, efficiently heals the cyanine fluorophore Cy5 in the absence of any photostabilizers in solution. A plausible mechanism is that Trolox interacts with the fluorophore through intramolecular quenching of triplet-related dark-states, which is a mechanism that appears to be common for both triplet-state quenchers (cyclooctatetraene) and redox-active compounds (Trolox, ascorbic acid, methylviologen). Additionally, the influence of solution-additives, such as cysteamine and procatechuic acid, on the self-healing process are studied. The results suggest the potential applicability of self-healing fluorophores in stochastic optical reconstruction microscopy (STORM) with optical super-resolution. The presented data contributes to an improved understanding of the mechanism involved in intramolecular photostabilization and has high relevance for the future development of self-healing fluorophores, including their applications in various research fields.
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Affiliation(s)
- Jasper H M van der Velde
- Molecular Microscopy Research Group & Single-molecule Biophysics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen (The Netherlands), Fax: (+31) 50-363-9199
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Kim BC, Lee SH, Jang M, Shon MY, Park JH. Development of Cholinesterase Inhibitors Using (a)-Lipoic Acid-benzyl Piperazine Hybrid Molecules. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.11.3322] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Yeun GH, Lee SH, Lim YB, Lee HS, Won MH, Lee BH, Park JH. Synthesis of Selective Butyrylcholinesterase Inhibitors Coupled between α-Lipoic Acid and Polyphenols by Using 2-(Piperazin-1-yl)ethanol Linker. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.4.1025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Koufaki M, Fotopoulou T, Iliodromitis EK, Bibli SI, Zoga A, Kremastinos DT, Andreadou I. Discovery of 6-[4-(6-nitroxyhexanoyl)piperazin-1-yl)]-9H-purine, as pharmacological post-conditioning agent. Bioorg Med Chem 2012; 20:5948-56. [DOI: 10.1016/j.bmc.2012.07.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 07/05/2012] [Accepted: 07/23/2012] [Indexed: 10/28/2022]
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24
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Inami K, Iizuka Y, Furukawa M, Nakanishi I, Ohkubo K, Fukuhara K, Fukuzumi S, Mochizuki M. Chlorine atom substitution influences radical scavenging activity of 6-chromanol. Bioorg Med Chem 2012; 20:4049-55. [PMID: 22658540 DOI: 10.1016/j.bmc.2012.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2012] [Revised: 05/04/2012] [Accepted: 05/05/2012] [Indexed: 11/30/2022]
Abstract
Synthetic 6-chromanol derivatives were prepared with several chlorine substitutions, which conferred both electron-withdrawing inductive effects and electron-donating resonance effects. A trichlorinated compound (2), a dichlorinated compound (3), and three monochlorinated compounds (4, 5, and 6) were synthesized; compounds 2, 3, and 6 were novel. The antioxidant activities of the compounds, evaluated in terms of their capacities to scavenge galvinoxyl radical, were associated with the number and positioning of chlorine atoms in the aromatic ring of 6-chromanol. The activity of compound 1 (2,2-dimethyl-6-chromanol) was slightly higher than the activities of compounds 2 (2,2-dimethyl-5,7-dichloro-6-chromanol) or 3 (2,2-dimethyl-5,7,8-trichloro-6-chromanol), in which the chlorine atoms were ortho to the phenolic hydroxyl group of 6-chromanol. The scavenging activity of compound 3 was slightly higher than that of 2, which contained an additional chlorine substituted in the 8 position. The activities of polychlorinated compounds 2 and 3 were higher than the activities of any of the monochlorinated compounds (4-6). Compound 6, in which a chlorine was substituted in the 8 position, exhibited the lowest activity. Substitution of a chlorine atom meta to the hydroxyl group of 6-chromanol (compounds 2 and 6) decreased galvinoxyl radical scavenging activity, owing to the electron-withdrawing inductive effect of chlorine. Positioning the chloro group ortho to the hydroxyl group (compounds 4 and 5) retained antioxidant activity because the intermediate radical was stabilized by the electron-donating resonance effect of chlorine in spite of the electron-withdrawing inductive effect of chlorine. Antioxidant activities of the synthesized compounds were evaluated for correlations with the O-H bond dissociation energies (BDEs) and the ionization potentials. The BDEs correlated with the second-order rate constants (k) in the reaction between galvinoxyl radical and the chlorinated 6-chromanol derivatives in acetonitrile. This indicated that the antioxidant mechanism of the synthesized compounds consisted of a one-step hydrogen atom transfer from the phenolic OH group rather than an electron transfer followed by a proton transfer. The synthesized compounds also exhibited hydroxyl radical scavenging capacities in aqueous solution.
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Affiliation(s)
- Keiko Inami
- Kyoritsu University of Pharmacy, Shibako-en 1-5-30, Minato-ku, Tokyo 105-8512, Japan.
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Woo YJ, Lee BH, Yeun GH, Kim HJ, Ko JM, Won MH, Lee BH, Park JH. Development of Selective Butyrylcholinesterase Inhibitors Using (R)-Lipoic Acid-Polyphenol Hybrid Molecules. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.2997] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Woo YJ, Lee BH, Yeun GH, Kim HJ, Won MH, Kim SH, Lee BH, Park JH. Selective Butyrylcholinesterase Inhibitors Using Polyphenol-polyphenol Hybrid Molecules. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.2593] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Koufaki M, Tsatsaroni A, Alexi X, Guerrand H, Zerva S, Alexis MN. Isoxazole substituted chromans against oxidative stress-induced neuronal damage. Bioorg Med Chem 2011; 19:4841-50. [DOI: 10.1016/j.bmc.2011.06.074] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 06/24/2011] [Accepted: 06/26/2011] [Indexed: 11/16/2022]
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28
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Khairullina VR, Gerchikov AY, Safarova AB, Khalitova RR, Spivak AY, Shakurova ER, Odinokov VN. Antioxidant properties of conjugates of triterpenic acids with amido derivatives of Trolox. KINETICS AND CATALYSIS 2011. [DOI: 10.1134/s0023158411020091] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Lahmann M, Thiem J. Transformations of chromanol and tocopherol and synthesis of ascorbate conjugates. Tetrahedron 2011. [DOI: 10.1016/j.tet.2010.12.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Spivak AY, Mufazzalova RR, Shakurova ER, Odinokov VN. Synthesis of triterpene acids conjugates with α-tocopherol synthetic analogs. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2010. [DOI: 10.1134/s1070428010090150] [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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31
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Zhang SJ, Ge QF, Guo DW, Hu WX, Liu HZ. Synthesis and anticancer evaluation of alpha-lipoic acid derivatives. Bioorg Med Chem Lett 2010; 20:3078-83. [PMID: 20403695 DOI: 10.1016/j.bmcl.2010.03.112] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Accepted: 03/27/2010] [Indexed: 11/16/2022]
Abstract
alpha-Lipoic acid derivatives were synthesized and evaluated for their in vitro anticancer activities against NCI-460, HO-8910, KB, BEL-7402, and PC-3 cell lines. The results, for most compounds exhibited dose-dependent inhibitory property and several compounds had good inhibitions at the dose of 100 microg/mL. Compound 17 m was further selected for in vivo evaluation against S180 xenograft in ICR mice, which had 24.7% tumor-weight inhibition through intragastric administration of 200mg/kg of body weight. Moreover, the LD(50) in mice for 17 m through ig exceeded 1000 mg/kg of body weight.
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Affiliation(s)
- Shi-Jie Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, PR China
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32
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Koufaki M, Theodorou E, Alexi X, Nikoloudaki F, Alexis MN. Synthesis of tropolone derivatives and evaluation of their in vitro neuroprotective activity. Eur J Med Chem 2010; 45:1107-12. [DOI: 10.1016/j.ejmech.2009.12.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2009] [Revised: 07/30/2009] [Accepted: 12/03/2009] [Indexed: 11/28/2022]
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33
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Abstract
The design and synthesis of hybrid molecules encompassing two pharmacophores in one molecular scaffold is a well-established approach to the synthesis of more potent drugs with dual activity. In this chapter, we will present the most important synthetic methodologies we have applied for the preparation of hybrid compounds containing the "universal antioxidant" alpha-lipoic acid. Experimental details for the synthesis and purification techniques of specific examples of molecules will be given. The synthesized molecules combine antioxidant activity with a variety of other biological activities such as protection against reperfusion arrhythmias, neuroprotective, and anti-inflammatory activity.
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Affiliation(s)
- Maria Koufaki
- National Hellenic Research Foundation, Institute of Organic and Pharmaceutical Chemistry, Athens, Greece
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34
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35
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He L, Galland S, Dufour C, Chen GR, Dangles O, Fenet B, Praly JP. C-D-Glucopyranosyl Derivatives of Tocopherols – Synthesis and Evaluation as Amphiphilic Antioxidants. European J Org Chem 2008. [DOI: 10.1002/ejoc.200700885] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Odinokov VN, Spivak AI, Knyshenko OV. Racemic and optically active tocopherol analogues with a modified side chain: Synthesis and biological activity (Review). RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2007; 33:387-404. [PMID: 17886430 DOI: 10.1134/s1068162007040012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Information on the synthesis and biological activity of natural and synthetic analogues of alpha-tocopherol with a modified side chain is systematized. These compounds are of interest as vitamin E metabolites, hydrophilic antioxidants, and precursors of drugs with combined pharmacological properties useful in therapy of pathological disorders caused by oxidative stress.
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37
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Reddy DS, Srinivas P, Balasubrahmanyam D, Iqbal J. Synthesis of an oxa-lipoic acid. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.04.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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39
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Koufaki M, Kiziridi C, Nikoloudaki F, Alexis MN. Design and synthesis of 1,2-dithiolane derivatives and evaluation of their neuroprotective activity. Bioorg Med Chem Lett 2007; 17:4223-7. [PMID: 17531485 DOI: 10.1016/j.bmcl.2007.05.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Revised: 05/09/2007] [Accepted: 05/11/2007] [Indexed: 10/23/2022]
Abstract
We designed and synthesized new analogues containing 1,2-dithiolane-3-alkyl and protected or free catechol moieties connected through heteroaromatic rings such as triazole, 1,2,4-oxadiazole, 1,3,4-oxadiazole, tetrazole or thiazole in order to explore the influence of the bioisosteric replacement of the amide group on the neuroprotective activity of the lipoic acid/dopamine conjugate. Evaluation of the activity of the new compounds, using glutamate-challenged hippocampal HT22 cells, showed that incorporation of heteroaromatic rings in the alkyl-1,2-dithiolane moieties in conjunction with another antioxidant, in this case catechol, may result in strong neuroprotective activity.
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Affiliation(s)
- Maria Koufaki
- National Hellenic Research Foundation, Institute of Organic and Pharmaceutical Chemistry, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece.
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40
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Detsi A, Bouloumbasi D, Prousis KC, Koufaki M, Athanasellis G, Melagraki G, Afantitis A, Igglessi-Markopoulou O, Kontogiorgis C, Hadjipavlou-Litina DJ. Design and synthesis of novel quinolinone-3-aminoamides and their alpha-lipoic acid adducts as antioxidant and anti-inflammatory agents. J Med Chem 2007; 50:2450-8. [PMID: 17444626 DOI: 10.1021/jm061173n] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of N-substituted-quinolinone-3-aminoamides and their hybrids containing the alpha-lipoic acid functionality were designed and synthesized as potential bifunctional agents combining antioxidant and anti-inflammatory activity. The new compounds were evaluated for their antioxidant activity and for their ability to inhibit in vitro lipoxygenase as well as for their anti-inflammatory activity in vivo. In general, the derivatives were found to be potent antioxidant or anti-inflammatory agents. The results are discussed in terms of structure-activity relationships and an attempt is made to define the structural features required for activity.
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Affiliation(s)
- Anastasia Detsi
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Zorgafou Campus, GR 157 73, Athens, Greece.
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41
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42
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Vecchio VM, Benedetti M, Migoni D, De Pascali SA, Ciccarese A, Marsigliante S, Capitelli F, Fanizzi FP. Highly selective metal mediated ortho-alkylation of phenol. First platinum containing organometallic chromane analogues. Dalton Trans 2007:5720-5. [DOI: 10.1039/b712248a] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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43
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Kwak JH, Kang HE, Jung JK, Kim H, Cho J, Lee H. Synthesis of 7-hydroxy-4-Oxo-4H-chromene- and 7-hydroxychroman-2-carboxylic acidN-alkyl amides and their antioxidant activities. Arch Pharm Res 2006; 29:728-34. [PMID: 17024844 DOI: 10.1007/bf02974071] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A series of 7-hydroxy-4-oxo-4H-chromene- (3a - h) and 7-hydroxychroman-2-carboxylic acid N-alkyl amides (4a - g) were synthesized and their antioxidant activities were evaluated. While compounds 3a - h were less active, compounds 4a - g exhibited more potent inhibition of lipid peroxidation initiated by Fe2+ and ascorbic acid in rat brain homogenates. Among them, 7-hydroxychroman-2-carboxylic acid N-alkylamides (4e - g) bearing nonyl, decyl, and undecyl side chain exhibited 3 times more potent inhibition than trolox (1).
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Affiliation(s)
- Jae-Hwan Kwak
- College of Pharmacy, Chungbuk National University, Cheongju, 361-763, Korea
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44
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Koufaki M, Kiziridi C, Papazafiri P, Vassilopoulos A, Varró A, Nagy Z, Farkas A, Makriyannis A. Synthesis and biological evaluation of benzopyran analogues bearing class III antiarrhythmic pharmacophores. Bioorg Med Chem 2006; 14:6666-78. [PMID: 16782345 DOI: 10.1016/j.bmc.2006.05.065] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2006] [Revised: 05/25/2006] [Accepted: 05/31/2006] [Indexed: 10/24/2022]
Abstract
We have synthesized a series of compounds combining the hydroxy-benzopyran ring of vitamin E with the methylsulfonylaminophenyl group of class III antiarrhythmic drugs, connected through tertiary amine moieties. Evaluation of the antiarrhythmic and antioxidant activity of the new compounds was carried out on isolated rat heart preparations using the non-recirculating Langendorff mode. The new analogues were present, at 10 microM concentration, during ischemia and reperfusion. Selected compounds were further studied by a conventional microelectrode method in order to get insight into their cellular mode of action. The most active compound, N-[4-[2-[[2-(3,4-dihydro-6-hydroxy-2,2,7,8-tetramethyl-2H-1-benzopyran-5-yl)ethyl] methylamine]ethyl]phenyl]methanesulfonamide (19a), reduces premature beats, prolongs QT and QRS intervals during ischemia and reperfusion, and reduces MDA content, leading to a fast recovery of the heart. In addition, it exhibits moderate class III antiarrhythmic action.
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Affiliation(s)
- Maria Koufaki
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece.
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45
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Cho J, Kang HE, Jung JK, Lee H. Synthesis of 6-hydroxy-7-methoxy-4-oxo-4H-chromene-2-carboxylic acid N-alkyl amides and their antioxidant activity. Arch Pharm Res 2006; 29:183-7. [PMID: 16596987 DOI: 10.1007/bf02969389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A series of 6-hydroxy-7-methoxy-4-oxo-4H-chromene-2-carboxylic acid N-alkyl amides (3a-g) were synthesized and their antioxidant activities were evaluated using rat brain homogenates.
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Affiliation(s)
- Jungsook Cho
- College of Pharmacy, Chungbuk National University, Cheongju, Korea
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46
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Dubuisson MLN, Rees JF, Marchand-Brynaert J. Coelenterazine (marine bioluminescent substrate): a source of inspiration for the discovery of novel antioxidants. Drug Dev Ind Pharm 2006; 31:827-49. [PMID: 16305995 DOI: 10.1080/03639040500271803] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Coelenterazine and derivatives were initially considered in the scientific community for their (bio)luminescent properties. Now, another interest of such hetero-bicycles has been pointed out by the discovery of remarkable antioxidative properties, and an unique mode of action as a "cascade": the mother-compound (imidazolopyrazinone) is transformed by ROS into a daughter-compound (2-amino-pyrazine) also endowed with antioxidative properties. This review illustrates the therapeutic potential of synthetic imidazolopyrazinones (coelenterazine analogues): chemical reactivity assays with singulet oxygen, radical anion superoxide, peroxynitrite, and radicals formed during lipid and LDL peroxidation, cellular tests of protection against oxidative stress using keratinocyte, hepatocyte, neuronal and erythrocyte cells, and finally in vivo evaluation in a hamster model of ischemia-reperfusion, are fully described.
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Affiliation(s)
- M L N Dubuisson
- Unité de Biologie Animale, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
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47
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Vassilopoulos A, Papazafiri P. Attenuation of oxidative stress in HL-1 cardiomyocytes improves mitochondrial function and stabilizes Hif-1alpha. Free Radic Res 2005; 39:1273-84. [PMID: 16298857 DOI: 10.1080/10715760500166685] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
HL-1 cardiomyocytes were subjected to simulated hypoxia, in the presence of cobalt chloride, which resulted in reduction of cell viability and induction of DNA laddering, indicating the activation of the apoptotic cascade. In the presence of trolox, ascorbic acid, melatonin and the hybrid compound of trolox and lipoic acid (LaT 3a), cell viability was increased, with LaT 3a exhibiting the best effect. Antioxidant treatment restored ATP levels, abolished laddering of DNA, abrogated MPTP opening, Bax translocation to the mitochondria and cytochrome c release to the cytoplasm. Moreover, severe hypoxia, was found to destabilize hypoxia inducible factor-1alpha (Hif-1alpha) mRNA. Reduction of oxidative stress attenuated this effect, implying a possible anti-apoptotic action of the master regulator of hypoxia response. Our data suggest that antioxidants can maintain cell function and survival by inhibiting the mitochondrial apoptotic pathway and stabilizing Hif-1alpha.
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Affiliation(s)
- Athanassios Vassilopoulos
- Department of Animal and Human Physiology, School of Biology, Faculty of Sciences, University of Athens, Panepistimioupolis, 15784 Athens, Greece
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48
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Koufaki M, Theodorou E, Galaris D, Nousis L, Katsanou ES, Alexis MN. Chroman/Catechol Hybrids: Synthesis and Evaluation of Their Activity against Oxidative Stress Induced Cellular Damage. J Med Chem 2005; 49:300-6. [PMID: 16392814 DOI: 10.1021/jm0506120] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Three series of chromans substituted at positions 2 or 5 by catechol derivatives were synthesized, and their activity against oxidative stress induced cellular damage was studied. Specifically, the ability of the new molecules to protect cultured cells from H(2)O(2)-induced DNA damage was evaluated using single cell gel electrophoresis (comet assay), while the neuroprotective activity of the new compounds against oxidative stress induced programmed cell death was studied using glutamate-challanged hippocampal HT22 cells. The majority of the new compounds are stronger neuroprotectants than quercetin. 5-Substituted chroman analogues such as the caffeic acid amides 12 and 16 and the dihydrostilbene analogue 24 were the most potent against both H(2)O(2)- and glutamate-induced damage in Jurkat T cells and HT22 cells, respectively.
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Affiliation(s)
- Maria Koufaki
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Ave., 116 35 Athens, Greece.
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49
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Lee H, Lee K, Jung JK, Cho J, Theodorakis EA. Synthesis and evaluation of 6-hydroxy-7-methoxy-4-chromanone- and chroman-2-carboxamides as antioxidants. Bioorg Med Chem Lett 2005; 15:2745-8. [PMID: 15911250 DOI: 10.1016/j.bmcl.2005.03.118] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2005] [Revised: 03/28/2005] [Accepted: 03/31/2005] [Indexed: 11/16/2022]
Abstract
A series of 6-hydroxy-7-methoxy-4-chromanone- (2a-e) and chroman-2-carboxamides (3a-e) were synthesized and their antioxidant activities were evaluated. While compounds 2a-e were less active, compounds 3a-e exhibited more potent inhibition of lipid peroxidation initiated by Fe(2+) and ascorbic acid in rat brain homogenates. Among them, N-arylsubstituted-chroman-2-carboxamides (3d and 3e) exhibited 25-40 times more potent inhibition than trolox (1). The DPPH radical scavenging activity of compound 3d was comparable to that of trolox.
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Affiliation(s)
- Heesoon Lee
- College of Pharmacy, Chungbuk National University, Cheongju, Republic of Korea.
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