1
|
Davies MJ. Detection and characterisation of radicals using electron paramagnetic resonance (EPR) spin trapping and related methods. Methods 2016; 109:21-30. [DOI: 10.1016/j.ymeth.2016.05.013] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 05/17/2016] [Accepted: 05/18/2016] [Indexed: 12/16/2022] Open
|
2
|
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
| |
Collapse
|
3
|
Ortial S, Morandat S, Bortolato M, Roux B, Polidori A, Pucci B, Durand G. PBN derived amphiphilic spin-traps. II/Study of their antioxidant properties in biomimetic membranes. Colloids Surf B Biointerfaces 2014; 113:384-93. [DOI: 10.1016/j.colsurfb.2013.08.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 08/21/2013] [Accepted: 08/22/2013] [Indexed: 10/26/2022]
|
4
|
Spasojević I. Free radicals and antioxidants at a glance using EPR spectroscopy. Crit Rev Clin Lab Sci 2011; 48:114-42. [DOI: 10.3109/10408363.2011.591772] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
5
|
Liu Y, Song Y, Du L, Villamena FA, Ji Y, Tian Q, Liu KJ, Liu Y. Novel glutathione-linked nitrones as dual free radical probes. NEW J CHEM 2011. [DOI: 10.1039/c1nj20033j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
6
|
Choteau F, Durand G, Ranchon-Cole I, Cercy C, Pucci B. Cholesterol-based α-phenyl-N-tert-butyl nitrone derivatives as antioxidants against light-induced retinal degeneration. Bioorg Med Chem Lett 2010; 20:7405-9. [PMID: 21071218 DOI: 10.1016/j.bmcl.2010.10.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 10/06/2010] [Accepted: 10/07/2010] [Indexed: 01/19/2023]
Abstract
Two cholesterol-based α-phenyl-N-tert-butyl nitrone derivatives were synthesized as antioxidants against light-induced retinal degeneration. Whereas nitrone 10 significantly protected retina against bright fluorescent light exposure when injected into the vitreous at 1 mM, no protection was observed with nitrone 6. The parent compound α-phenyl-N-tert-butyl nitrone also exhibited protective activity at 9 mM but not at 1 mM. This suggests that nitrone 10 may be a candidate for the treatment of retinal diseases.
Collapse
Affiliation(s)
- Fanny Choteau
- Laboratoire de Chimie Bioorganique et des Systèmes Moléculaires Vectoriels, Université d'Avignon et des Pays de Vaucluse, Faculté des Sciences, Avignon, France
| | | | | | | | | |
Collapse
|
7
|
Electron Paramagnetic Resonance - A Powerful Tool of Medical Biochemistry in Discovering Mechanisms of Disease and Treatment Prospects. J Med Biochem 2010. [DOI: 10.2478/v10011-010-0020-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Electron Paramagnetic Resonance - A Powerful Tool of Medical Biochemistry in Discovering Mechanisms of Disease and Treatment ProspectsIn pathophysiological conditions related to oxidative stress, the application of selected antioxidants could have beneficial effects on human health. Electron paramagnetic resonance (EPR) spectroscopy is a technique that provides unique insight into the redox biochemistry, due to its ability to: (i) distinguish and quantify different reactive species, such as hydroxyl radical, superoxide, carbon centered radicals, hydrogen atom, nitric oxide, ascorbyl radical, melanin, and others; (ii) evaluate the antioxidative capacity of various compounds, extracts and foods; (iii) provide information on other important parameters of biological systems. A combination of EPR spectroscopy and traditional biochemical methods represents an efficient tool in the studies of disease mechanisms and antioxidative therapy prospects, providing a more complete view into the redox processes in the human organism.
Collapse
|
8
|
El Fangour S, Marini M, Good J, McQuaker SJ, Shiels PG, Hartley RC. Nitrones for understanding and ameliorating the oxidative stress associated with aging. AGE (DORDRECHT, NETHERLANDS) 2009; 31:269-76. [PMID: 19479343 PMCID: PMC2813050 DOI: 10.1007/s11357-009-9098-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Accepted: 05/07/2009] [Indexed: 05/04/2023]
Abstract
Oxidative damage from reactive oxygen species (ROS) and the carbon-centred radicals arising from them is important to the process of aging, and age-related diseases are generally caused, exacerbated or mediated by oxidative stress. Nitrones can act as spin traps to detect, identify, quantify and locate the radicals responsible using electron paramagnetic resonance (EPR or ESR) spectroscopy, and a new carnitine-derived nitrone, CarnDOD-7C, designed to accumulate in mitochondria is reported. Nitrones also have potential as therapeutic antioxidants, e.g. for slowing cellular aging, and as tools for chemical biology. Two low-molecular weight nitrones, DIPEGN-2 and DIPEGN-3, are reported, which combine high water-solubility with high lipophilicity and obey Lipinski's rule of five.
Collapse
Affiliation(s)
- Siham El Fangour
- Centre for the Chemical Research of Ageing, WestCHEM Department of Chemistry, University of Glasgow, Joseph Black Building, Glasgow, G12 8QQ UK
| | - Milvia Marini
- Dipartimento di Scienze e Chimiche, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy
| | - James Good
- Centre for the Chemical Research of Ageing, WestCHEM Department of Chemistry, University of Glasgow, Joseph Black Building, Glasgow, G12 8QQ UK
| | - Stephen J. McQuaker
- Centre for the Chemical Research of Ageing, WestCHEM Department of Chemistry, University of Glasgow, Joseph Black Building, Glasgow, G12 8QQ UK
| | - Paul G. Shiels
- Department of Surgery, University of Glasgow, Level 2 Queen Elizabeth Building, Glasgow Royal Infirmary, 10 Alexandra Parade, Glasgow, G31 2ER UK
| | - Richard C. Hartley
- Centre for the Chemical Research of Ageing, WestCHEM Department of Chemistry, University of Glasgow, Joseph Black Building, Glasgow, G12 8QQ UK
| |
Collapse
|
9
|
Synthesis of N-arylpyridinium salts bearing a nitrone spin trap as potential mitochondria-targeted antioxidants. Tetrahedron 2009; 65:5284-5292. [PMID: 19693262 PMCID: PMC2722452 DOI: 10.1016/j.tet.2009.04.083] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2009] [Revised: 04/06/2009] [Accepted: 04/23/2009] [Indexed: 12/30/2022]
Abstract
The generation of excess reactive oxygen species (ROS) in mitochondria is responsible for much of the oxidative stress associated with ageing (aging), and mitochondrial dysfunction is part of the pathology of neurodegeneration and type 2 diabetes. Lipophilic pyridinium ions are known to accumulate in mitochondria and this paper describes a general route for the preparation of nitrone-containing N-arylpyridinium salts having a range of lipophilicities, as potential therapeutic antioxidants. The compatibility of nitrones with the Zincke reaction is the key to their synthesis. Their trapping of carbon-centred radicals and the EPR spectra of the resulting nitroxides are reported.
Collapse
|
10
|
JI YQ, WANG ZY, WANG LF, LIU KJ, LIU Y. Prediction and Evaluation of the Piperonylidene Analogue of PBN by DFT Calculations & NBT Reduction Mediated Spectral Assay. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
11
|
Wu JL, Liao Y, Liu SL. N-[2-(2-Methoxyphenyl)benzylidene]-tert-butyl-amine N-oxide. Acta Crystallogr Sect E Struct Rep Online 2008; 64:o1099. [PMID: 21202613 PMCID: PMC2961506 DOI: 10.1107/s1600536808014529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Accepted: 05/14/2008] [Indexed: 11/16/2022]
Abstract
In the molecule of the title compound, C18H21NO2, the two benzene rings are oriented at a dihedral angle of 58.19 (3)°. Intramolecular C—H⋯O hydrogen bonds result in the formation of one six- and one five-membered ring, which adopt twist and envelope conformations, respectively. In the crystal structure, C—H⋯O hydrogen bonds link the molecules.
Collapse
|
12
|
Drew SC, Barnham KJ. Biophysical investigations of the prion protein using electron paramagnetic resonance. Methods Mol Biol 2008; 459:173-196. [PMID: 18576156 DOI: 10.1007/978-1-59745-234-2_13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The binding of paramagnetic metal ions is thought to be an essential function of the prion protein and lends itself to interrogation by electron paramagnetic resonance (EPR), which probes the local coordination environment of bound metal ions to provide details of the metal-binding affinity, stoichiometry, and the symmetry and identity of its ligating atoms. It is also capable of identifying reactive oxygen/nitrogen species and peptide-derived radicals, in addition to monitoring protein-membrane dynamics and conformation by using site-directed spin labeling. An overview of the EPR technique as applied to the prion protein is given, key results are summarized, and some future experimental avenues are outlined.
Collapse
Affiliation(s)
- Simon C Drew
- Department of Pathology and Mental Health Research Institute of Victoria, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, Australia
| | | |
Collapse
|
13
|
Swartz HM, Khan N, Khramtsov VV. Use of electron paramagnetic resonance spectroscopy to evaluate the redox state in vivo. Antioxid Redox Signal 2007; 9:1757-71. [PMID: 17678441 PMCID: PMC2702846 DOI: 10.1089/ars.2007.1718] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The aim of this article is to provide an overview of how electron paramagnetic resonance (EPR) can be used to measure redox-related parameters in vivo. The values of this approach include that the measurements are made under fully physiological conditions, and some of the measurements cannot be made by other means. Three complementary approaches are used with in vivo EPR: the rate of reduction or reactions of nitroxides, spin trapping of free radicals, and measurements of thiols. All three approaches already have produced unique and useful information. The measurement of the rate of decrease of nitroxides technically is the simplest, but difficult to interpret because the measured parameter, reduction in the intensity of the nitroxide signal, can occur by several different mechanisms. In vivo spin trapping can provide direct evidence for the occurrence of specific free radicals in vivo and reflect relative changes, but accurate absolute quantification remains challenging. The measurement of thiols in vivo also appears likely to be useful, but its development as an in vivo technique is at an early stage. It seems likely that the use of in vivo EPR to measure redox processes will become an increasingly utilized and valuable tool.
Collapse
Affiliation(s)
- Harold M Swartz
- Department of Radiology, Dartmouth Medical School, Hanover, New Hampshire 03755, USA.
| | | | | |
Collapse
|
14
|
Shioji K, Iwashita H, Shimomura T, Yamaguchi T, Okuma K. ESR Measurement Using 2-Diphenylphosphinoyl-2-methyl-3,4-dihydro-2H-pyrroleN-Oxide (DPhPMPO) in Human Erythrocyte Ghosts. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.758] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
15
|
Hardy M, Chalier F, Ouari O, Finet JP, Rockenbauer A, Kalyanaraman B, Tordo P. Mito-DEPMPO synthesized from a novel NH2-reactive DEPMPO spin trap: a new and improved trap for the detection of superoxide. Chem Commun (Camb) 2007:1083-5. [PMID: 17325813 DOI: 10.1039/b616076j] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mito-DEPMPO, a new DEPMPO analogue bearing a triphenylphosphonium group, was synthesized via a novel NH2-reactive DEPMPO. The half-life of the Mito-DEPMPO superoxide adduct was estimated to be ca. 40 min. Using Mito-DEPMPO, reactive oxygen species generated in intact mitochondria were detected and characterized by EPR.
Collapse
Affiliation(s)
- Micael Hardy
- SREP, UMR 6517 CNRS et Universités Aix-Marseille 1, 2 et 3, Centre de Saint Jérôme, 13013 Marseille, France
| | | | | | | | | | | | | |
Collapse
|
16
|
Sklavounou E, Hay A, Ashraf N, Lamb K, Brown E, Mac Intyre A, George WD, Hartley RC, Shiels PG. The use of telomere biology to identify and develop superior nitrone based anti-oxidants. Biochem Biophys Res Commun 2006; 347:420-7. [PMID: 16828709 DOI: 10.1016/j.bbrc.2006.06.087] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2006] [Accepted: 06/15/2006] [Indexed: 11/28/2022]
Abstract
We have employed a biological chemistry approach to dissect the mechanisms underpinning cellular responses to oxidant stress and to develop biologically relevant anti-oxidants. We have used telomere biology to define cellular stress responses and have observed telomere independent, p21- and p16-dependent stasis following oxidative insult in human fibroblasts. This was accompanied by a [corrected] reduction in XRCC5 expression and a reduction in [corrected] SIRT 1 expression. Using these markers in conjunction with senescence-associated beta-galactosidase expression, we have developed and screened novel nitrone based anti-oxidant compounds. We have identified functional compounds that are unsuitable for use in primary human cells. This has allowed subsequent identification of suitably structured compounds that act as superior biological anti-oxidants, which have potential for use in clinical interventions.
Collapse
Affiliation(s)
- E Sklavounou
- Division of Cancer Sciences and Molecular Pathology University of Glasgow, Glasgow G12 8QQ, UK
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Abstract
AbstractThe syntheses of seven N-aryl-C,C-dialkoxycarbonylnitrones 1–7, six of which were original, were achieved from the appropriate aryl-nitroso compounds. These ketonitrones were found to trap efficiently carbon-centred free radicals in aqueous media, yielding stable aminoxyl radicals whose EPR spectra lasted several days. The two penta-deuterated compounds 6 and 7 were also found to be efficient at trapping methoxyl radical. Their various spin adducts showed simple three line signals, very sensitive to the polarity of the environment. This study represents the very first use of linear ketonitrones as spin traps.
Collapse
|
18
|
Liu YP, Ji YQ, Song YG, Liu KJ, Liu B, Tian Q, Liu Y. A novel spin trap for targeting sulfhydryl-containing polypeptides. Chem Commun (Camb) 2005:4943-5. [PMID: 16205808 DOI: 10.1039/b509903j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel spin trap containing an iodoacetamide group has been synthesized and then used to target polypeptides, i.e. glutathione and bovine serum albumin, by which the resulting covalently bonded bioconjugates exhibit great potential for the application of spin trapping of transient radicals in biological systems.
Collapse
Affiliation(s)
- Yang Ping Liu
- State Key Laboratory for Structural Chemistry of Unstable Species, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, China
| | | | | | | | | | | | | |
Collapse
|