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Ilari S, Nucera S, Passacatini LC, Scarano F, Macrì R, Caminiti R, Ruga S, Serra M, Giancotti LA, Lauro F, Dagostino C, Mazza V, Ritorto G, Oppedisano F, Maiuolo J, Palma E, Malafoglia V, Tomino C, Mollace V, Muscoli C. Exploring the Role of Bergamot Polyphenols in Alleviating Morphine-Induced Hyperalgesia and Tolerance through Modulation of Mitochondrial SIRT3. Nutrients 2024; 16:2620. [PMID: 39203757 PMCID: PMC11357234 DOI: 10.3390/nu16162620] [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: 06/21/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 09/03/2024] Open
Abstract
Morphine is an important pain reliever employed in pain management, its extended utilize is hindered by the onset of analgesic tolerance and oxidative stress. Long-term morphine administration causes elevated production of reactive oxygen species (ROS), disrupting mitochondrial function and inducing oxidation. Sirtuin 3 (SIRT3), a mitochondrial protein, is essential in modulating ROS levels by regulating mitochondrial antioxidant enzymes as manganese superoxide dismutase (MnSOD). Our investigation focused on the impact of SIRT3 on hyperalgesia and morphine tolerance in mice, as evaluating the antioxidant effect of the polyphenolic fraction of bergamot (BPF). Mice were administered morphine twice daily for four consecutive days (20 mg/kg). On the fifth day, mice received an acute dose of morphine (3 mg/kg), either alone or in conjunction with BPF or Mn (III)tetrakis (4-benzoic acid) porphyrin (MnTBAP). We evaluated levels of malondialdehyde (MDA), nitration, and the activity of SIRT3, MnSOD, glutamine synthetase (GS), and glutamate 1 transporter (GLT1) in the spinal cord. Our findings demonstrate that administering repeated doses of morphine led to the development of antinociceptive tolerance in mice, accompanied by increased superoxide production, nitration, and inactivation of mitochondrial SIRT3, MnSOD, GS, and GLT1. The combined administration of morphine with either BPF or MnTBAP prevented these effects.
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Affiliation(s)
- Sara Ilari
- IRCCS San Raffaele Roma, 00166 Rome, Italy; (S.I.); (L.C.P.); (V.M.); (C.T.)
| | - Saverio Nucera
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | | | - Federica Scarano
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Roberta Macrì
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Rosamaria Caminiti
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Stefano Ruga
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Maria Serra
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Luigino Antonio Giancotti
- Department of Pharmacology and Physiology, School of Medicine and Institute for Translational Neuroscience, Saint Louis University, St. Louis, MO 63103, USA
| | - Filomena Lauro
- Department of Pharmacology and Physiology, School of Medicine and Institute for Translational Neuroscience, Saint Louis University, St. Louis, MO 63103, USA
| | - Concetta Dagostino
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Valeria Mazza
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Giovanna Ritorto
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Francesca Oppedisano
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Jessica Maiuolo
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Ernesto Palma
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | | | - Carlo Tomino
- IRCCS San Raffaele Roma, 00166 Rome, Italy; (S.I.); (L.C.P.); (V.M.); (C.T.)
| | - Vincenzo Mollace
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
| | - Carolina Muscoli
- Department of Health Sciences, Institute of Research for Food Safety and Health (IRC-FSH), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (S.N.); (F.S.); (R.M.); (R.C.); (S.R.); (M.S.); (C.D.); (V.M.); (G.R.); (F.O.); (J.M.); (E.P.); (V.M.)
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Vigder N, Suarna C, Corcilius L, Nadel J, Chen W, Payne R, Tumanov S, Stocker R. An improved method for the detection of myeloperoxidase chlorinating activity in biological systems using the redox probe hydroethidine. Free Radic Biol Med 2023; 195:23-35. [PMID: 36565892 DOI: 10.1016/j.freeradbiomed.2022.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/06/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
Conversion of the redox probe hydroethidine (HE) to 2-chloroethidium (2-Cl-E+) by myeloperoxidase (MPO)-derived hypochlorous acid (HOCl) provides comparable specificity and superior sensitivity to measurement of 3-chlorotyrosine (3-Cl-Tyr), the gold standard biomarker for MPO chlorinating activity in biological systems. However, a limitation of the former method is the complex mixture of products formed by the reaction of HE with reagent HOCl, coupled with the difficult purification of 2-Cl-E+ from this mixture for analytical purposes. This limitation prompted us to test whether 2-Cl-E+ could be formed by reaction of HE with the strong and widely used chlorinating agent, N-chlorosuccinimide (NCS). Unexpectedly, such reaction yielded 2-chlorohydroethidine (2-Cl-HE) as the major product in addition to 2-Cl-E+, as assessed by high performance liquid chromatography (HPLC), mass spectrometry (MS), and nuclear magnetic resonance (NMR). 2-Cl-HE was also observed to be the major chlorination product formed from HE with both reagent and enzymatically generated HOCl, just as it was formed ex vivo in different healthy and diseased mouse and human tissues upon incubation with glucose/glucose oxidase to generate a flux of hydrogen peroxide (H2O2). Quantification of 2-Cl-HE plus 2-Cl-E+ improved the sensitivity of the HE-based method compared with measurement of only 2-Cl-E+. Moreover, 2-chlorodimidium (2-Cl-D+) was developed as a practical internal standard instead of the previously used internal standard, deuterated 2-Cl-E+ (d5-2-Cl-E+). Overall, the present study describes an improved method for the detection of MPO/chlorinating activity in biological systems of health and disease.
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Affiliation(s)
- Niv Vigder
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Cacang Suarna
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Leo Corcilius
- School of Chemistry, The University of Sydney, Sydney, New South Wales, Australia; Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, New South Wales, Australia
| | - James Nadel
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; St Vincent's Hospital, Sydney, Australia; University of New South Wales, Sydney, Australia
| | - Weiyu Chen
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia
| | - Richard Payne
- School of Chemistry, The University of Sydney, Sydney, New South Wales, Australia; Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, New South Wales, Australia
| | - Sergey Tumanov
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia
| | - Roland Stocker
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia.
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Wang D, Yang Y, Zou X, Zheng Z, Zhang J. Curcumin ameliorates CKD-induced mitochondrial dysfunction and oxidative stress through inhibiting GSK-3β activity. J Nutr Biochem 2020; 83:108404. [PMID: 32531667 DOI: 10.1016/j.jnutbio.2020.108404] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 12/21/2022]
Abstract
Curcumin has been reported to attenuate muscle atrophy. However, the underling mechanism remains unclear. The aim of this study was to investigate whether curcumin could improve chronic kidney disease (CKD)-induced muscle atrophy and mitochondrial dysfunction by inhibiting glycogen synthase kinase-3β (GSK-3β) activity. The sham and CKD mice were fed either a control diet or an identical diet containing 0.04% curcumin for 12 weeks. The C2C12 myotubes were treated with H2O2 in the presence or absence of curcumin. In addition, wild-type and muscle-specific GSK-3β knockout (KO) CKD model mice were made by 5/6 nephrectomy, and the sham was regarded as control. Curcumin could exert beneficial effects, including weight maintenance and improved muscle function, increased mitochondrial biogenesis, alleviated mitochondrial dysfunction by increasing adenosine triphosphate levels, activities of mitochondrial electron transport chain complexes and basal mitochondrial respiration and suppressing mitochondrial membrane potential. In addition, curcumin modulated redox homeostasis by increasing antioxidant activity and suppressed mitochondrial oxidative stress. Moreover, the protective effects of curcumin had been found to be mediated via inhibiting GSK-3β activity in vitro and in vivo. Importantly, GSK-3β KO contributed to improved mitochondrial function, attenuated mitochondrial oxidative damage and augmented mitochondrial biogenesis in muscle of CKD. Overall, this study suggested that curcumin alleviated CKD-induced mitochondrial oxidative damage and mitochondrial dysfunction via inhibiting GSK-3β activity in skeletal muscle.
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Affiliation(s)
- Dongtao Wang
- Department of Traditional Chinese Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 5181000, Guangdong, China; School of Chinese Medicine, Southern Medical University, Shenzhen 510515, Guangdong, China; Department of the Ministry of Science and Technology, Guangxi International Zhuang Medicine Hospital, Nanning 530201, Guangxi , China; Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, Guangzhou University of Traditional Chinese Medicine, Shenzhen 518033, Guangdong, China.
| | - Yajun Yang
- Department of Pharmacology, Guangdong Key Laboratory for R&D of Natural Drug, Guangdong Medical University, Zhanjiang 524023, Guangdong , China
| | - Xiaohu Zou
- Department of Traditional Chinese Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 5181000, Guangdong, China
| | - Zena Zheng
- Department of Traditional Chinese Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 5181000, Guangdong, China
| | - Jing Zhang
- Department of Traditional Chinese Medicine, Shenzhen Hospital, Southern Medical University, Shenzhen 5181000, Guangdong, China
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Bagheri S, TermehYousefi A, Mehrmashhadi J. Carbon dot-based fluorometric optical sensors: an overview. REV INORG CHEM 2019. [DOI: 10.1515/revic-2019-0002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AbstractFluorescent carbon dots (CDs) are a new class of carbon nanomaterials and have demonstrated excellent optical properties, good biocompatibility, great aqueous solubility, low cost, and simple synthesis. Since their discovery, various synthesis methods using different precursors were developed, which were mainly classified as top-down and bottom-up approaches. CDs have presented many applications, and this review article mainly focuses on the development of CD-based fluorescent sensors. The sensing mechanisms, sensor design, and sensing properties to various targets are summarized. Broad ranges of detection, including temperature, pH, DNA, antibiotics, cations, cancer cells, and antibiotics, have been discussed. In addition, the challenges and future directions for CDs as sensing materials are also presented.
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Affiliation(s)
- Samira Bagheri
- Department of Mechanical Engineering, Tufts University, Medford, MA 02155, USA
| | - Amin TermehYousefi
- Department of Mechanical Engineering, Tufts University, Medford, MA 02155, USA
| | - Javad Mehrmashhadi
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
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Comparison of three analytical methods for superoxide produced by activated immune cells. J Pharmacol Toxicol Methods 2019; 101:106637. [PMID: 31678429 DOI: 10.1016/j.vascn.2019.106637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/29/2019] [Accepted: 09/30/2019] [Indexed: 11/23/2022]
Abstract
Superoxide plays a key role in normal immune function and inflammatory diseases. In order to evaluate normal immune function or screen inhibitors of superoxide production for treating inflammatory diseases, it is very important to detect superoxide with good accuracy, sensitivity, and flexibility. In present study, we investigated three analysis methods of superoxide, colorimetric assay by WST-8, fluorescence assay by dihydroethidium and chemiluminescence assay by lucigenin, compared their precisions, specificities, sensitivities and time curve characteristics in superoxide analysis, and then validate their values in the screening of anti-inflammatory compounds. The results reveal that three analysis methods of superoxide all have good precisions and high specificities but have different sensitivities and time curve characteristics, which suggest their different applications. In addition, they can all be used in the screening of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitors and anti-inflammatory compounds.
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Fisetin Confers Cardioprotection against Myocardial Ischemia Reperfusion Injury by Suppressing Mitochondrial Oxidative Stress and Mitochondrial Dysfunction and Inhibiting Glycogen Synthase Kinase 3 β Activity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:9173436. [PMID: 29636855 PMCID: PMC5845518 DOI: 10.1155/2018/9173436] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 01/01/2018] [Indexed: 01/25/2023]
Abstract
Acute myocardial infarction (AMI) is the leading cause of morbidity and mortality worldwide. Timely reperfusion is considered an optimal treatment for AMI. Paradoxically, the procedure of reperfusion can itself cause myocardial tissue injury. Therefore, a strategy to minimize the reperfusion-induced myocardial tissue injury is vital for salvaging the healthy myocardium. Herein, we investigated the cardioprotective effects of fisetin, a natural flavonoid, against ischemia/reperfusion (I/R) injury (IRI) using a Langendorff isolated heart perfusion system. I/R produced significant myocardial tissue injury, which was characterized by elevated levels of lactate dehydrogenase and creatine kinase in the perfusate and decreased indices of hemodynamic parameters. Furthermore, I/R resulted in elevated oxidative stress, uncoupling of the mitochondrial electron transport chain, increased mitochondrial swelling, a decrease of the mitochondrial membrane potential, and induction of apoptosis. Moreover, IRI was associated with a loss of the mitochondrial structure and decreased mitochondrial biogenesis. However, when the animals were pretreated with fisetin, it significantly attenuated the I/R-induced myocardial tissue injury, blunted the oxidative stress, and restored the structure and function of mitochondria. Mechanistically, the fisetin effects were found to be mediated via inhibition of glycogen synthase kinase 3β (GSK3β), which was confirmed by a biochemical assay and molecular docking studies.
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Cai H, Rasulova M, Vandemeulebroucke L, Meagher L, Vlaeminck C, Dhondt I, Braeckman BP. Life-Span Extension by Axenic Dietary Restriction Is Independent of the Mitochondrial Unfolded Protein Response and Mitohormesis in Caenorhabditis elegans. J Gerontol A Biol Sci Med Sci 2017; 72:1311-1318. [PMID: 28329170 PMCID: PMC5861982 DOI: 10.1093/gerona/glx013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 01/16/2017] [Indexed: 11/14/2022] Open
Abstract
In Caenorhabditis elegans, a broad range of dietary restriction regimens extend life span to different degrees by separate or partially overlapping molecular pathways. One of these regimens, axenic dietary restriction, doubles the worm's life span but currently, almost nothing is known about the underlying molecular mechanism. Previous studies suggest that mitochondrial stress responses such as the mitochondrial unfolded protein response (UPRmt) or mitohormesis may play a vital role in axenic dietary restriction-induced longevity. Here, we provide solid evidence that axenic dietary restriction treatment specifically induces an UPRmt response in C elegans but this induction is not required for axenic dietary restriction-mediated longevity. We also show that reactive oxygen species-mediated mitohormesis is not involved in this phenotype. Hence, changes in mitochondrial physiology and induction of a mitochondrial stress response are not necessarily causal to large increases in life span.
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Affiliation(s)
- Huaihan Cai
- Laboratory of Aging Physiology and Molecular Evolution, Biology Department, Ghent University, Belgium
| | - Madina Rasulova
- Laboratory of Aging Physiology and Molecular Evolution, Biology Department, Ghent University, Belgium
| | | | - Lea Meagher
- Laboratory of Aging Physiology and Molecular Evolution, Biology Department, Ghent University, Belgium
| | - Caroline Vlaeminck
- Laboratory of Aging Physiology and Molecular Evolution, Biology Department, Ghent University, Belgium
| | - Ineke Dhondt
- Laboratory of Aging Physiology and Molecular Evolution, Biology Department, Ghent University, Belgium
| | - Bart P Braeckman
- Laboratory of Aging Physiology and Molecular Evolution, Biology Department, Ghent University, Belgium
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Savchenko AA, Kudryavtsev IV, Borisov AG. METHODS OF ESTIMATION AND THE ROLE OF RESPIRATORY BURST IN THE PATHOGENESIS OF INFECTIOUS AND INFLAMMATORY DISEASES. ACTA ACUST UNITED AC 2017. [DOI: 10.15789/2220-7619-2017-4-327-340] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Mattila H, Khorobrykh S, Havurinne V, Tyystjärvi E. Reactive oxygen species: Reactions and detection from photosynthetic tissues. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 152:176-214. [PMID: 26498710 DOI: 10.1016/j.jphotobiol.2015.10.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/30/2015] [Accepted: 10/01/2015] [Indexed: 12/22/2022]
Abstract
Reactive oxygen species (ROS) have long been recognized as compounds with dual roles. They cause cellular damage by reacting with biomolecules but they also function as agents of cellular signaling. Several different oxygen-containing compounds are classified as ROS because they react, at least with certain partners, more rapidly than ground-state molecular oxygen or because they are known to have biological effects. The present review describes the typical reactions of the most important ROS. The reactions are the basis for both the detection methods and for prediction of reactions between ROS and biomolecules. Chemical and physical methods used for detection, visualization and quantification of ROS from plants, algae and cyanobacteria will be reviewed. The main focus will be on photosynthetic tissues, and limitations of the methods will be discussed.
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Affiliation(s)
- Heta Mattila
- Department of Biochemistry/Molecular Plant Biology, University of Turku, 20014 Turku, Finland
| | - Sergey Khorobrykh
- Department of Biochemistry/Molecular Plant Biology, University of Turku, 20014 Turku, Finland
| | - Vesa Havurinne
- Department of Biochemistry/Molecular Plant Biology, University of Turku, 20014 Turku, Finland
| | - Esa Tyystjärvi
- Department of Biochemistry/Molecular Plant Biology, University of Turku, 20014 Turku, Finland.
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Koto T, Michalski R, Zielonka J, Joseph J, Kalyanaraman B. Detection and identification of oxidants formed during •NO/O2•⁻ reaction: a multi-well plate CW-EPR spectroscopy combined with HPLC analyses. Free Radic Res 2014; 48:478-86. [PMID: 24460755 DOI: 10.3109/10715762.2014.886774] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
New techniques and probes are routinely emerging for detecting short-lived free radicals such as superoxide radical anion (O₂(•-)), nitric oxide ((•)NO), and transient oxidants derived from peroxynitrite (ONOO(-)/ONOOH). Recently, we reported the profiles of oxidation products (2-hydroxyethidium, ethidium, and various dimeric products) of the fluorogenic probe hydroethidine (HE) in the (•)NO/O₂(•-) system (Zielonka et al. 2012). In this study, we used HPLC analyses of HE oxidation products in combination with continuous wave electron paramagnetic resonance (CW-EPR) spin trapping with 5-tert-butoxycarbonyl-5-methyl-1-pyrroline N-oxide (BMPO) to define the identity of the oxidizing species formed in the (•)NO/O₂(•-) system. EPR spin-trapping technique is still considered as the gold standard for characterization of free radicals and their intermediates. We monitored formation of BMPO-superoxide (BMPO-(•)OOH) and BMPO-hydroxyl (BMPO-(•)OH) radical adducts. Simultaneous analyses of results from EPR spin-trapping and HPLC measurements are helpful in the interpretation of the mechanism of formation of products of HE oxidation.
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Affiliation(s)
- T Koto
- Max Planck Institute for Chemical Energy Conversion , Stiftstrasse, Muelheim an der Ruhr Germany
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Gao X, Ding C, Zhu A, Tian Y. Carbon-Dot-Based Ratiometric Fluorescent Probe for Imaging and Biosensing of Superoxide Anion in Live Cells. Anal Chem 2014; 86:7071-8. [DOI: 10.1021/ac501499y] [Citation(s) in RCA: 184] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiang Gao
- Department
of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, P. R. China
| | - Changqin Ding
- Department
of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, P. R. China
| | - Anwei Zhu
- Department of Chemistry, East China Normal University, North Zhongshan Road 3663, Shanghai 200062, P. R. China
| | - Yang Tian
- Department of Chemistry, East China Normal University, North Zhongshan Road 3663, Shanghai 200062, P. R. China
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Michalski R, Michalowski B, Sikora A, Zielonka J, Kalyanaraman B. On the use of fluorescence lifetime imaging and dihydroethidium to detect superoxide in intact animals and ex vivo tissues: a reassessment. Free Radic Biol Med 2014; 67:278-84. [PMID: 24200598 PMCID: PMC4275029 DOI: 10.1016/j.freeradbiomed.2013.10.816] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 10/23/2013] [Accepted: 10/24/2013] [Indexed: 02/05/2023]
Abstract
Recently, D.J. Hall et al. reported that ethidium (E(+)) is formed as a major product of hydroethidine (HE) or dihydroethidium reaction with superoxide (O2(-)) in intact animals with low tissue oxygen levels (J. Cereb. Blood Flow Metab. 32:23-32, 2012). The authors concluded that measurement of E(+) is an indicator of O2(-) formation in intact brains of animals. This finding is in stark contrast to previous reports using in vitro systems showing that 2-hydroxyethidium, not ethidium, is formed from the reaction between O2(-) and HE. Published in vivo results support the in vitro findings. In this study, we performed additional experiments in which HE oxidation products were monitored under different fluxes of O2(-). Results from these experiments further reaffirm our earlier findings (H. Zhao et al., Free Radic. Biol. Med. 34:1359, 2003). We conclude that whether in vitro or in vivo, E(+) measured by HPLC or by fluorescence lifetime imaging is not a diagnostic marker product for O2(-) reaction with HE.
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Affiliation(s)
- Radoslaw Michalski
- Department of Biophysics and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Bartosz Michalowski
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Adam Sikora
- Department of Biophysics and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Jacek Zielonka
- Department of Biophysics and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Balaraman Kalyanaraman
- Department of Biophysics and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
- Corresponding author: Balaraman Kalyanaraman, PhD, Department of Biophysics and Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226 USA, p: 414-955-4000, f: 414-955-6512,
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ROS in aging Caenorhabditis elegans: damage or signaling? OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2012; 2012:608478. [PMID: 22966416 PMCID: PMC3431105 DOI: 10.1155/2012/608478] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 07/03/2012] [Indexed: 12/21/2022]
Abstract
Many insights into the mechanisms and signaling pathways underlying aging have resulted from research on the nematode Caenorhabditis elegans. In this paper, we discuss the recent findings that emerged using this model organism concerning the role of reactive oxygen species (ROS) in the aging process. The accrual of oxidative stress and damage has been the predominant mechanistic explanation for the process of aging for many years, but reviewing the recent studies in C. elegans calls this theory into question. Thus, it becomes more and more evident that ROS are not merely toxic byproducts of the oxidative metabolism. Rather it seems more likely that tightly controlled concentrations of ROS and fluctuations in redox potential are important mediators of signaling processes. We therefore discuss some theories that explain how redox signaling may be involved in aging and provide some examples of ROS functions and signaling in C. elegans metabolism. To understand the role of ROS and the redox status in physiology, stress response, development, and aging, there is a rising need for accurate and reversible in vivo detection. Therefore, we comment on some methods of ROS and redox detection with emphasis on the implementation of genetically encoded biosensors in C. elegans.
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