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Nepachalovich PS, Shadyro OI, Bekish AV, Shmanai VV. The influence of H/D kinetic isotope effect on radiation-induced transformations of hydroxyl-containing compounds in aqueous solutions. Free Radic Res 2020; 54:732-744. [PMID: 33070642 DOI: 10.1080/10715762.2020.1838502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Vicinal diols and its derivatives can be exploited as model compounds for the investigation of radiation-induced free-radical transformations of hydroxyl-containing biomolecules such as carbohydrates, phospholipids, ribonucleotides, amino acids, and peptides. In this paper, for the first time, the prospects of isotope reinforcement approach in inhibiting free-radical transformations of hydroxyl-containing compounds in aqueous solutions are investigated on the example of radiolysis of 1,2-propanediol and 1,2-propanediol-2-d1 aqueous solutions. At an absorbed dose rate of 0.110 ± 0.003 Gy·s-1 a profound kinetic isotope effect (KIE) is observed for the non-branched chain formation of acetone, which is a final dehydration product of predominant carbon-centred radicals CH3·C(OH)CH2OH. In 0.1 and 1 M deaerated solutions at pH 7.00 ± 0.01, the values of KIE are 8.9 ± 1.7 and 15.3 ± 3.1, respectively. A rationale for the fact that a strong KIE takes place only in the case of chain processes, which may occur during free-radical transformations of vicinal diols, is also provided herein based on the results of 2-propanol and 2-propanol-2-d1 indirect radiolysis. Lastly, the lack of KIE is shown in the case of 2-butanone formation from 2,3-butanediol or 2,3-butanediol-2,3-d2. This indicates that the type (primary, secondary) of the β-carbonyl radicals formed as a result of CH3·C(OH)CH(OH)R (R = H, CH3) dehydration determines the manifestation of the effect.
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Affiliation(s)
- Palina S Nepachalovich
- Research Institute for Physical Chemical Problems, Belarusian State University, Minsk, Belarus
| | - Oleg I Shadyro
- Research Institute for Physical Chemical Problems, Belarusian State University, Minsk, Belarus.,Department of Chemistry, Belarusian State University, Minsk, Belarus
| | - Andrei V Bekish
- Institute of Physical Organic Chemistry, National Academy of Science, Minsk, Belarus
| | - Vadim V Shmanai
- Institute of Physical Organic Chemistry, National Academy of Science, Minsk, Belarus
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2
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Shadyro O, Samovich S, Edimecheva I. Free-radical and biochemical reactions involving polar part of glycerophospholipids. Free Radic Biol Med 2019; 144:6-15. [PMID: 30849488 DOI: 10.1016/j.freeradbiomed.2019.02.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/20/2019] [Accepted: 02/28/2019] [Indexed: 12/18/2022]
Abstract
The review summarizes and critically discusses data on biochemical and free-radical transformations of glycerophospholipids. The results presented therein demonstrate that hydroxyl-containing glycerophospholipids, such as cardiolipin, lyso-lipids and others, can undergo fragmentation upon interaction with radical agents forming the biologically active products. Hydrolysis of glycerophospholipids catalyzed by different phospholipases was shown to yield compounds, which can be involved in the free-radical fragmentation leading to significant changes in structures of original lipids.
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Affiliation(s)
- Oleg Shadyro
- Department of Chemistry of the Belarusian State University, Nezavisimosti av., 4, 220030, Minsk, Belarus; Research Institute for Physical and Chemical Problems of the Belarusian State University, Leningradskaya st., 14, 220050, Minsk, Belarus.
| | - Svetlana Samovich
- Department of Chemistry of the Belarusian State University, Nezavisimosti av., 4, 220030, Minsk, Belarus; Research Institute for Physical and Chemical Problems of the Belarusian State University, Leningradskaya st., 14, 220050, Minsk, Belarus
| | - Irina Edimecheva
- Research Institute for Physical and Chemical Problems of the Belarusian State University, Leningradskaya st., 14, 220050, Minsk, Belarus
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3
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Shadyro O, Lisovskaya A. ROS-induced lipid transformations without oxygen participation. Chem Phys Lipids 2019; 221:176-183. [DOI: 10.1016/j.chemphyslip.2019.03.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/18/2019] [Accepted: 03/24/2019] [Indexed: 12/24/2022]
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4
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Samovich SN, Sladkova AA, Sverdlov RL, Edimecheva IP, Shadyro OI. Effects of quinones and nitroazoles on free-radical fragmentation of glycerol-1-phosphate and 1,2-dimyristoyl-glycero-3-phosphatidyl-glycerol. Chem Phys Lipids 2019; 222:8-14. [PMID: 31005671 DOI: 10.1016/j.chemphyslip.2019.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/01/2019] [Accepted: 04/17/2019] [Indexed: 01/22/2023]
Abstract
Effects of quinones and azoles on the formation of steady-state radiolysis products in aqueous solutions of glycerol-1-phosphate and aqueous dispersions of 1,2-dimyristoyl-glycero-3-phosphatidyl-glycerol has been investigated. The data obtained by LC-MS-ESI and spectrophotometric measurements shows that the compounds having quinoid structures, including the antitumor agent doxorubicin, and azoles having nitro groups effectively inhibit free-radical fragmentation of glycerol-1-phosphate and 1,2-dimyristoyl-glycero-3-phosphatidyl-glycerol, decreasing the radiation-chemical yields of either inorganic phosphate or phosphatidic acid respectively. The observed effects of blocking free-radical processes are believed to be related to the ability of the tested compounds to oxidize α-hydroxyl-containing carbon-centered radicals of starting substrates, which give rise to fragmentation reaction. The possibility of using the discovered properties of quinones, doxorubicin and nitroazoles to provide practical solutions in oncological radiotherapy and pathophysiology is discussed.
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Affiliation(s)
- Svetlana N Samovich
- Department of Chemistry of the Belarusian State University, 4 Nezavisimosti Av., 220030, Minsk, Belarus; Research Institute for Physical and Chemical Problems of the Belarusian State University, 14 Leningradskaya St., 220050, Minsk, Belarus
| | - Anastasia A Sladkova
- Department of Chemistry of the Belarusian State University, 4 Nezavisimosti Av., 220030, Minsk, Belarus; Research Institute for Physical and Chemical Problems of the Belarusian State University, 14 Leningradskaya St., 220050, Minsk, Belarus
| | - Roman L Sverdlov
- Department of Chemistry of the Belarusian State University, 4 Nezavisimosti Av., 220030, Minsk, Belarus; Research Institute for Physical and Chemical Problems of the Belarusian State University, 14 Leningradskaya St., 220050, Minsk, Belarus
| | - Irina P Edimecheva
- Research Institute for Physical and Chemical Problems of the Belarusian State University, 14 Leningradskaya St., 220050, Minsk, Belarus
| | - Oleg I Shadyro
- Department of Chemistry of the Belarusian State University, 4 Nezavisimosti Av., 220030, Minsk, Belarus; Research Institute for Physical and Chemical Problems of the Belarusian State University, 14 Leningradskaya St., 220050, Minsk, Belarus.
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Samovich S, Sverdlov R, Voitekhovich S, Grigoriev Y, Ivashkevich O, Shadyro O. Effects of quinones and azoles on radiation-induced processes involving hydroxyl-containing carbon-centered radicals. Radiat Phys Chem Oxf Engl 1993 2018. [DOI: 10.1016/j.radphyschem.2017.09.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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6
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Sverdlov RL, Khrishchanovich AV, Brinkevich SD, Shadyro OI. Interaction of tryptophan and its derivatives with oxygen- and nitrogen-centered radicals. HIGH ENERGY CHEMISTRY 2015. [DOI: 10.1134/s0018143915020101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Laiakis EC, Strassburg K, Bogumil R, Lai S, Vreeken RJ, Hankemeier T, Langridge J, Plumb RS, Fornace AJ, Astarita G. Metabolic phenotyping reveals a lipid mediator response to ionizing radiation. J Proteome Res 2014; 13:4143-54. [PMID: 25126707 PMCID: PMC4156265 DOI: 10.1021/pr5005295] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Exposure to ionizing radiation has dramatically increased in modern society, raising serious health concerns. The molecular response to ionizing radiation, however, is still not completely understood. Here, we screened mouse serum for metabolic alterations following an acute exposure to γ radiation using a multiplatform mass-spectrometry-based strategy. A global, molecular profiling revealed that mouse serum undergoes a series of significant molecular alterations following radiation exposure. We identified and quantified bioactive metabolites belonging to key biochemical pathways and low-abundance, oxygenated, polyunsaturated fatty acids (PUFAs) in the two groups of animals. Exposure to γ radiation induced a significant increase in the serum levels of ether phosphatidylcholines (PCs) while decreasing the levels of diacyl PCs carrying PUFAs. In exposed mice, levels of pro-inflammatory, oxygenated metabolites of arachidonic acid increased, whereas levels of anti-inflammatory metabolites of omega-3 PUFAs decreased. Our results indicate a specific serum lipidomic biosignature that could be utilized as an indicator of radiation exposure and as novel target for therapeutic intervention. Monitoring such a molecular response to radiation exposure might have implications not only for radiation pathology but also for countermeasures and personalized medicine.
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Affiliation(s)
- Evagelia C Laiakis
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University , Washington DC 20057, United States
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Sverdlov R, Brinkevich S, Shadyro O. Effects of tryptophan derivatives and β-carboline alkaloids on radiation- and peroxide-induced transformations of ethanol. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2013.12.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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Olshyk VN, Melsitova IV, Yurkova IL. Influence of lipids with hydroxyl-containing head groups on Fe2+ (Cu2+)/H2O2-mediated transformation of phospholipids in model membranes. Chem Phys Lipids 2014; 177:1-7. [DOI: 10.1016/j.chemphyslip.2013.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 10/17/2013] [Accepted: 10/19/2013] [Indexed: 12/26/2022]
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10
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Mass spectrometry and inflammation—MS methods to study oxidation and enzyme-induced changes of phospholipids. Anal Bioanal Chem 2013; 406:1291-306. [DOI: 10.1007/s00216-013-7534-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Revised: 11/14/2013] [Accepted: 11/21/2013] [Indexed: 10/25/2022]
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11
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Alves E, Melo T, Simões C, Faustino MAF, Tomé JPC, Neves MGPMS, Cavaleiro JAS, Cunha A, Gomes NCM, Domingues P, Domingues MRM, Almeida A. Photodynamic oxidation of Staphylococcus warneri membrane phospholipids: new insights based on lipidomics. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2013; 27:1607-1618. [PMID: 23765609 DOI: 10.1002/rcm.6614] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 04/17/2013] [Accepted: 04/28/2013] [Indexed: 06/02/2023]
Abstract
RATIONALE The photodynamic process involves the combined use of light and a photosensitizer, which, in the presence of oxygen, originates cytotoxic species capable of oxidizing biological molecules, such as lipids. However, the effect of the photodynamic process in the bacterial phospholipid profile by a photosensitizer has never been reported. A lipidomic approach was used to study the photodynamic oxidation of membrane phospholipids of Staphylococcus warneri by a tricationic porphyrin [5,10,15-tris(1-methylpyridinium-4-yl)-20-(pentafluorophenyl)porphyrin triiodide, Tri-Py(+)-Me-PF]. METHODS S. warneri (10(8) colony forming units mL(-1)) was irradiated with white light (4 mW cm(-2), 21.6 J cm(-2)) in the presence of Tri-Py(+)-Me-PF (5.0 μM). Non-photosensitized bacteria were used as control (irradiated without porphyrin). After irradiation, total lipids were extracted and separated by thin-layer chromatography (TLC). Isolated fractions of lipid classes were quantified by phosphorus assay and analyzed by mass spectrometry (MS): off-line TLC/ESI-MS, hydrophilic interaction (HILIC)-LC/MS and MS/MS. RESULTS The most representative classes of S. warneri phospholipids were identified as phosphatidylglycerols (PGs) and cardiolipins (CLs). Lysyl-phosphatidylglycerols (LPGs), phosphatidylethanolamines (PEs), phosphatidylcholines (PCs) and phosphatidic acids (PAs) were also identified. After photodynamic treatment, an overall increase in the relative abundance of PGs was observed as well as the appearance of new oxidized species from CLs, including hydroxy and hydroperoxy derivatives. Formation of high amounts of lipid hydroperoxides was confirmed by FOX2 assay. Photodynamic oxidation of phospholipid standards revealed the formation of hydroperoxy and dihydroperoxy derivatives, confirming the observed CL oxidized species in S. warneri. CONCLUSIONS Membrane phospholipids of S. warneri are molecular targets of the photoinactivation process induced by Tri-Py(+) -Me-PF. The overall modification in the relative amount of phospholipids and the formation of lipid hydroxides and hydroperoxides indicate the lethal damage caused to photosensitized bacterial cells.
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Affiliation(s)
- Eliana Alves
- Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Aveiro, Portugal
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12
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Samovich S, Brinkevich S, Shadyro O. Interaction of aromatic alcohols, aldehydes and acids with α-hydroxyl-containing carbon-centered radicals: A steady state radiolysis study. Radiat Phys Chem Oxf Engl 1993 2013. [DOI: 10.1016/j.radphyschem.2012.09.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Brinkevich SD, Samovich SN, Shadyro OI. Reactions of α-hydroxyethyl radicals with the derivatives of benzyl alcohol, benzaldehyde, and benzoic acid, as studied by continuous radiolysis. HIGH ENERGY CHEMISTRY 2011. [DOI: 10.1134/s0018143911060075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Maciel E, da Silva RN, Simões C, Domingues P, Domingues MRM. Structural characterization of oxidized glycerophosphatidylserine: evidence of polar head oxidation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:1804-1814. [PMID: 21952894 DOI: 10.1007/s13361-011-0194-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2011] [Revised: 06/07/2011] [Accepted: 06/08/2011] [Indexed: 05/31/2023]
Abstract
Non-oxidized phosphatidylserine (PS) is known to play a key role in apoptosis but there is considerable research evidence suggesting that oxidized PS also plays a role in this event, leading to the increasing interest in studying PS oxidative modifications. In this work, different PS (1-palmitoyl-2-linoleoyl-sn-glycero-3-phospho-L-serine (PLPS), 1-palmitoyl-2-oleoyl-sn-glycero-3-phospho-L-serine (POPS), and 1,2-dipalmitoyl-sn-glycero-3-phospho-L-serine (DPPS) were oxidized in vitro by hydroxyl radical, generated under Fenton reaction conditions, and the reactions were monitored by ESI-MS in negative mode. Oxidation products were then fractionated by thin layer chromatography (TLC) and characterized by tandem mass spectrometry (MS/MS). This approach allowed the identification of hydroxyl, peroxy, and keto derivatives due to oxidation of unsaturated fatty acyl chains. Oxidation products due to oxidation of serine polar head were also identified. These products, with lower molecular weight than the non-modified PS, were identified as [M - 29 - H](-) (terminal acetic acid), [M - 30 - H](-) (terminal acetamide), [M - 13 - H](-) (terminal hydroperoxyacetaldehyde), and [M - 13 - H](-) (terminal hydroxyacetaldehyde plus hydroxy fatty acyl chain). Phosphatidic acid was also formed in these conditions. These findings confirm the oxidation of the serine polar head induced by the hydroxyl radical. The identification of these modifications may be a valuable tool to evaluate phosphatidylserine alteration under physiopathologic conditions and also to help understand the biological role of phosphatidylserine oxidation in the apoptotic process and other biological functions.
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Affiliation(s)
- Elisabete Maciel
- Mass Spectrometry Centre, QOPNA, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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Fuchs B, Bresler K, Schiller J. Oxidative changes of lipids monitored by MALDI MS. Chem Phys Lipids 2011; 164:782-95. [PMID: 21964445 DOI: 10.1016/j.chemphyslip.2011.09.006] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 09/03/2011] [Accepted: 09/15/2011] [Indexed: 11/29/2022]
Abstract
Oxidation processes of lipids are of paramount interest from many viewpoints. For instance, oxidation processes are highly important under in vivo conditions because molecules with regulatory functions are generated by oxidation of lipids or free fatty acids. Additionally, many inflammatory diseases are accompanied by lipid oxidation and, therefore, oxidation products are also useful disease (bio)markers. Thus, there is also considerable interest in methods of (oxidized) lipid analysis. Nowadays, soft ionization mass spectrometric (MS) methods are regularly used to study oxidative lipid modifications due to their high sensitivities and the extreme mass resolution. Although electrospray ionization (ESI) MS is so far most popular, applications of matrix-assisted laser desorption and ionization (MALDI) MS are increasing. This review aims to summarize the so far available data on MALDI analyses of oxidized lipids. In addition to model systems, special attention will be paid to the monitoring of oxidized lipids under in vivo conditions, particularly the oxidation of (human) lipoproteins. It is not the aim of this review to praise MALDI as the "best" method but to provide a critical survey of the advantages and drawbacks of this method.
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Affiliation(s)
- Beate Fuchs
- University of Leipzig, Faculty of Medicine, Institute of Medical Physics and Biophysics, Härtelstrasse16/18, Leipzig, Germany
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16
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Brinkevich SD, Sverdlov RL, Lagutin PY, Shadyro OI. Effects of B vitamins on the radiation-induced transformations of hydroxyl-containing organic compounds. HIGH ENERGY CHEMISTRY 2011. [DOI: 10.1134/s0018143911050043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Yurkova IL, Arnhold J, Fitzl G, Huster D. Fragmentation of mitochondrial cardiolipin by copper ions in the Atp7b-/- mouse model of Wilson's disease. Chem Phys Lipids 2011; 164:393-400. [PMID: 21645498 DOI: 10.1016/j.chemphyslip.2011.05.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 05/20/2011] [Accepted: 05/23/2011] [Indexed: 11/26/2022]
Abstract
Cellular copper overload as found in Wilson's disease may disturb mitochondrial function and integrity. Atp7b(-/-) mice accumulate copper in the liver and serve as an animal model for this inherited disease. The molecular mechanism of copper toxicity in hepatocytes is poorly understood. Total mitochondrial lipids from liver of wild-type mice were subjected to oxidative stress by the Cu(2+)/H(2)O(2)/ascorbate system. Phosphatidic acid (PA) and phosphatidylhydroxyacetone (PHA) were detected as cardiolipin fragmentation products by thin-layer chromatography combined with MALDI-TOF mass spectrometry in oxidized samples, but not in unperturbed ones. The formation of PA and PHA in copper-treated model membrane correlated well with the decrease of cardiolipin. Mitochondrial lipids from Atp7b(-/-) mice of different age were analyzed for the presence of PA. While 32-weeks old wild-type (control) and Atp7b(-/-) mice did not show any PA, there was a steady increase in the amount of this lipid in Atp7b(-/-) mice in contrast to control with increasing age. Hepatocytes from elder Atp7b(-/-)mice contained morphologically changed mitochondria unlike cells from wild-type animals of the same age. We concluded that free-radical fragmentation of cardiolipin with the formation of PA is a likely mechanism that damages mitochondria under conditions of oxidative stress due to copper overload. Our findings are relevant for better understanding of molecular mechanisms for liver damage found in Wilson's disease.
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Affiliation(s)
- Irina L Yurkova
- Research Institute for Physical Chemical Problems of the Belarusian State University, Minsk, Belarus
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18
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Maciel E, Domingues P, Domingues MRM. Liquid chromatography/tandem mass spectrometry analysis of long-chain oxidation products of cardiolipin induced by the hydroxyl radical. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:316-326. [PMID: 21192027 DOI: 10.1002/rcm.4866] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The anionic phospholipid cardiolipin (CL) is found almost exclusively in the inner membrane of mitochondria, playing an important role in energy metabolism. Oxidation of CL has been associated with apoptotic events and various pathologies. In this study, electrospray ionization mass spectrometry coupled with liquid chromatography (LC/ESI-MS) was used to identify tetralinoleoyl-cardiolipin (TLCL) modifications induced by the OH(·) radical generated under Fenton reaction conditions (H(2)O(2) and Fe(2+)). The identified oxidation products of TLCL contained 2, 4, 6 and 8 additional oxygen atoms. These long-chain oxidation products were characterized by LC/ESI-MS/MS as doubly [M-2H](2-) and singly charged [M-H](-) ions. A detailed analysis of the fragmentation pathways of these precursor ions allowed the identification of hydroperoxy derivatives of CL. MS/MS analysis indicated that CL oxidation products with 4, 6 and 8 oxygen atoms have one fatty acyl chain bearing 4 oxygen atoms ([RCOO+4O](-)). Even when the TLCL molecule was oxidized by the addition of eight oxygen atoms, one of the acyl chains remained non-modified and one fatty acyl chain contained three or four oxygen atoms. This led us to conclude that under oxidative conditions by the OH(·) radical, the distribution of oxygens/peroxy groups in the CL molecule is not random, even when CL has the same fatty acyl chains in all the positions. Using mass spectrometry, the oxidation products have been unequivocally assigned, which may be useful for their detection in biological samples.
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Affiliation(s)
- Elisabete Maciel
- Mass Spectrometry Centre, QOPNA, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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Spickett CM, Wiswedel I, Siems W, Zarkovic K, Zarkovic N. Advances in methods for the determination of biologically relevant lipid peroxidation products. Free Radic Res 2010; 44:1172-202. [PMID: 20836661 DOI: 10.3109/10715762.2010.498476] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Lipid peroxidation is recognized to be an important contributor to many chronic diseases, especially those of an inflammatory pathology. In addition to their value as markers of oxidative damage, lipid peroxidation products have also been shown to have a wide variety of biological and cell signalling effects. In view of this, accurate and sensitive methods for the measurement of lipid peroxidation products are essential. Although some assays have been described for many years, improvements in protocols are continually being reported and, with recent advances in instrumentation and technology, highly specialized and informative techniques are increasingly used. This article gives an overview of the most currently used methods and then addresses the recent advances in some specific approaches. The focus is on analysis of oxysterols, F(2)-isoprostanes and oxidized phospholipids by gas chromatography or liquid chromatography mass spectrometry techniques and immunoassays for the detection of 4-hydroxynonenal.
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Affiliation(s)
- Corinne M Spickett
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK.
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A New Mechanism for Photo- and Radiation-Induced Decomposition of Sphingolipids. Lipids 2010; 46:271-6. [DOI: 10.1007/s11745-010-3506-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2010] [Accepted: 11/10/2010] [Indexed: 10/18/2022]
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21
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Yurkova IL, Arnhold J. Radiation-induced free-radical fragmentation of ceramides in a model system. HIGH ENERGY CHEMISTRY 2009. [DOI: 10.1134/s0018143909040043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Yurkova I, Huster D, Arnhold J. Free radical fragmentation of cardiolipin by cytochrome c. Chem Phys Lipids 2008; 158:16-21. [PMID: 18983994 DOI: 10.1016/j.chemphyslip.2008.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2008] [Revised: 09/26/2008] [Accepted: 09/30/2008] [Indexed: 10/21/2022]
Abstract
The effect of cytochrome c (cyt c) on degradation of cardiolipin in its polar part was investigated in cardiolipin/phosphatidylcholine (CL/PC) liposomes incubated with cyt c/H(2)O(2)/and (or) ascorbate by high-performance thin layer chromatography and MALDI-TOF mass spectrometry. It has been shown that phosphatidic acid (PA) and phosphatidylhydroxyacetone (PHA) were formed in the system under conditions where hydrogen peroxide favours a release of heme iron from cyt c. The formation of PA and PHA occurs via an OH-induced fragmentation taking place in the polar moiety of cardiolipin. Formation of fragmentation products correlated with the loss of CL in CL/PC liposomes incubated with cyt c/H(2)O(2)/ascorbate or with Cu(2+)/H(2)O(2)/ascorbate.
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Affiliation(s)
- Irina Yurkova
- Research Institute for Physical Chemical Problems, Belarusian State University, Minsk, Belarus
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Yurkova IL, Stuckert F, Kisel MA, Shadyro OI, Arnhold J, Huster D. Formation of phosphatidic acid in stressed mitochondria. Arch Biochem Biophys 2008; 480:17-26. [PMID: 18835242 DOI: 10.1016/j.abb.2008.09.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2008] [Revised: 09/10/2008] [Accepted: 09/15/2008] [Indexed: 01/18/2023]
Abstract
Mitochondria are an important intracellular source of ROS as well as a sensitive target for oxidative damage under certain pathological conditions such as iron or copper overload. Mitochondrial membranes are rich in the tetraacyl phospholipid cardiolipin. Its integrity is important for efficient oxidative phosphorylation. Mouse liver mitochondria were subjected to oxidative stress by the Cu(2+)(Fe(2+))/H(2)O(2)/ascorbate system. Phosphatidic acid was detected in oxidized mitochondria, but not in unperturbed mitochondria. The Cu(2+)/H(2)O(2)/and (or not) ascorbate system caused the formation of phosphatidic acid and phosphatidylhydroxyacetone in cardiolipin liposomes. These products proceed via an HO*-radical induced fragmentation taking place in the polar moiety of cardiolipin. Mass spectrometry analysis of phosphatidic acid newly formed in mitochondria revealed that it has been derived from fragmentation of cardiolipin. Thus, free-radical fragmentation of cardiolipin in its polar part with the formation of phosphatidic acid is a likely mechanism that damages mitochondria under conditions of oxidative stress.
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Affiliation(s)
- Irina L Yurkova
- Research Institute for Physical Chemical Problems of Belarusian State University, Minsk, Belarus
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24
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Sun G, Yang K, Zhao Z, Guan S, Han X, Gross RW. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometric analysis of cellular glycerophospholipids enabled by multiplexed solvent dependent analyte-matrix interactions. Anal Chem 2008; 80:7576-85. [PMID: 18767869 DOI: 10.1021/ac801200w] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) based approach was developed for the rapid analyses of cellular glycerophospholipids. Through multiplexed solvent-enabled optimization of analyte-matrix interactions during the crystallization process, over a 30-fold increase in S/N was achieved using 9-aminoacridine as the matrix. The linearity of response (r(2) = 0.99) and dynamic range of this method (over 2 orders of magnitude) were excellent. Moreover, through multiplexing ionization conditions by generating suites of different analyte-matrix interactions in the absence or presence of different alkali metal cations in the matrix, discrete lipid classes were highly and selectively ionized under different conditions resulting in the de facto resolution of lipid classes without chromatography. The resultant decreases in spectral complexity facilitated tandem mass spectrometric analysis through high energy fragmentation of lithiated molecular ions that typically resulted in informative fragment ions. Anionic phospholipids were also detected as singly negatively charged species that could be fragmented using MALDI tandem mass spectrometry leading to structural assignments. Collectively, these results identify a rapid, sensitive, and highly informative MALDI-TOF MS approach for analysis of cellular glycerophospholipids directly from extracts of mammalian tissues without the need for prior chromatographic separation.
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Affiliation(s)
- Gang Sun
- Division of Bioorganic Chemistry and Molecular Pharmacology, Washington University School of Medicine, St. Louis, Missouri 63110, USA
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25
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Brinkevich SD, Shadyro OI. Effect of ascorbic acid and its derivatives on the radiation-chemical transformations of hydroxyl-containing organic compounds. HIGH ENERGY CHEMISTRY 2008. [DOI: 10.1134/s0018143908040024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Yurkova IL, Arnhold J. Ceramide formation on the γ-irradiation of galactocerebroside as a constituent of micelles. HIGH ENERGY CHEMISTRY 2008. [DOI: 10.1134/s0018143908040036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Domingues MRM, Reis A, Domingues P. Mass spectrometry analysis of oxidized phospholipids. Chem Phys Lipids 2008; 156:1-12. [PMID: 18671956 DOI: 10.1016/j.chemphyslip.2008.07.003] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2008] [Revised: 06/24/2008] [Accepted: 07/02/2008] [Indexed: 10/21/2022]
Abstract
The evidence that oxidized phospholipids play a role in signaling, apoptotic events and in age-related diseases is responsible for the increasing interest for the study of this subject. Phospholipid changes induced by oxidative reactions yield a huge number of structurally different oxidation products which difficult their isolation and characterization. Mass spectrometry (MS), and tandem mass spectrometry (MS/MS) using the soft ionization methods (electrospray and matrix-assisted laser desorption ionization) is one of the finest approaches for the study of oxidized phospholipids. Product ions in tandem mass spectra of oxidized phospholipids, allow identifying changes in the fatty acyl chain and specific features such as presence of new functional groups in the molecule and their location along the fatty acyl chain. This review describes the work published on the use of mass spectrometry in identifying oxidized phospholipids from the different classes.
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Affiliation(s)
- M Rosário M Domingues
- Mass Spectrometry Centre, Department of Chemistry, University of Aveiro, Campus Santiago, Aveiro, Portugal.
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28
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Shadyro OI, Kisel’ RM. Glycoside bond cleavage in the radiolysis of aqueous solutions of methylglycosides and disaccharides. HIGH ENERGY CHEMISTRY 2007. [DOI: 10.1134/s0018143907050037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Yurkova IL, Kisel MA, Arnhold J, Shadyro OI. Effect of structure of polar head of phospholipids on their fragmentation during γ-irradiation of model membranes. HIGH ENERGY CHEMISTRY 2006. [DOI: 10.1134/s0018143906050031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Povalishev VN, Polozov GI, Shadyro OI. Effect of α-tocopherol and its sulfur-containing analogs on radiation-induced chemical transformations of hexane and ethanol. HIGH ENERGY CHEMISTRY 2006. [DOI: 10.1134/s0018143906050043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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Shadyro OI, Kisel RM, Vysotskii VV, Edimecheva IP. Effects of vitamins, coenzymes and amino acids on reactions of homolytic cleavage of the O-glycoside bond in carbohydrates. Bioorg Med Chem Lett 2006; 16:4763-6. [PMID: 16844374 DOI: 10.1016/j.bmcl.2006.06.089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2006] [Revised: 06/23/2006] [Accepted: 06/29/2006] [Indexed: 01/22/2023]
Abstract
It has been established that vitamins B1, K3 and C, coenzyme Q0 and amino acids cysteine and histidine effectively inhibit reactions of homolytic cleavage of the O-glycoside bond, which are responsible for the destruction of di- and polysaccharides on gamma-irradiation or the action of other reactive radical initiators. This effect was shown to originate from either oxidation or reduction of the radicals of carbohydrates undergoing destruction.
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Affiliation(s)
- O I Shadyro
- Department of Chemistry of the Belarussian State University, Nezavisimosti Av., 4, 220050 Minsk, Belarus.
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32
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Yurkova I, Kisel M, Arnhold J, Shadyro O. Iron-mediated free-radical formation of signaling lipids in a model system. Chem Phys Lipids 2005; 137:29-37. [PMID: 16105667 DOI: 10.1016/j.chemphyslip.2005.06.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2005] [Revised: 06/09/2005] [Accepted: 06/13/2005] [Indexed: 11/25/2022]
Abstract
It has been shown using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and its combination with thin-layer chromatography (TLC) that the action of the ascorbate/Fe(2+)/H(2)O(2) oxidizing system on cardiolipin and galactocerebroside results in the formation of phosphatidic acid (PA) and ceramide (Cer), respectively. These data, when combined with results obtained on radiolysis of similar substances, allowed the conclusion that the formation of PA and Cer occurs via an OH-induced fragmentation taking place in polar moiety of the starting substrates.
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Affiliation(s)
- Irina Yurkova
- Department of Organic Chemistry, Belarusian State University, Minsk, Belarus
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33
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Hryntsevich IB, Shadyro OI. Reactions of α-hydroxyethyl radicals with flavonoids of various structures. Bioorg Med Chem Lett 2005; 15:4252-5. [PMID: 16098743 DOI: 10.1016/j.bmcl.2005.06.065] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2004] [Revised: 06/23/2005] [Accepted: 06/23/2005] [Indexed: 11/17/2022]
Abstract
It has been found that flavonoids (FL) are able to reduce, add or oxidize alpha-hydroxyethyl radicals (HER). The probability of these processes to occur depends on the structure of the FL under study. Namely, to cause reduction of HER, the presence of hydroxyl groups is necessary, and to effect oxidation or addition of HER, the presence of a carbonyl group at C4 and a C2-C3 double bond in the C ring is required.
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Affiliation(s)
- I B Hryntsevich
- Department of Chemistry of the Belarussian State University, Skaryna av., 4, 220050 Minsk, Republic of Belarus
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34
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Edimecheva IP, Kisel RM, Shadyro OI, Kazem K, Murase H, Kagiya T. Homolytic cleavage of the O-glycoside bond in carbohydrates: a steady-state radiolysis study. JOURNAL OF RADIATION RESEARCH 2005; 46:319-24. [PMID: 16210788 DOI: 10.1269/jrr.46.319] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The formation of products resulting from the O-glycoside bond cleavage following radiolysis of aqueous solutions of methyl-alpha-D-glucopyranoside (I), 3-O-methyl-alpha-D-glucopyranose (II), maltose, lactose, gentiobiose and cellobiose were studied. Radiation-induced destruction yields were also determined for dextran, laminarin and trimethylcelulose upon irradiation of their aqueous solutions. Oxygen, quinones and compounds capable of forming quinoid structures were found to inhibit radiation-induced homolytic destruction processes taking place in glycosides, di- and polysaccharides. The data obtained in this study enabled the authors to demonstrate an important role played by the fragmentation reaction of C-2 radicals which were generated from the starting substances in the formation of final radiolysis products.
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Affiliation(s)
- Irina P Edimecheva
- Department of Chemistry, Belarusian State University, 220-050 Minsk, Belarus
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35
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Lagutin PY, Shadyro OI. Effects of B group vitamins on reactions of various α-hydroxyl-containing organic radicals. Bioorg Med Chem Lett 2005; 15:3797-800. [PMID: 15993058 DOI: 10.1016/j.bmcl.2005.05.083] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2005] [Revised: 05/11/2005] [Accepted: 05/11/2005] [Indexed: 11/17/2022]
Abstract
Effects of vitamins B1, B2, B6, and pyridoxal phosphate (PPh) on final product formation in radiolysis of aqueous solutions of ethanol, ethylene glycol, alpha-methylglycoside, and maltose were studied. It has been found that vitamin B2 and PPh effectively oxidize R*CHOH species, while suppressing their recombination and fragmentation reactions, thereby increasing the yields of the respective oxidation products. Vitamins B1 and B2 are capable of reducing alcohol radicals to the respective initial molecules, decreasing the yields of the radical transformation products.
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Affiliation(s)
- P Yu Lagutin
- Department of Chemistry of the Belarussian State University, Skaryna av., 4, 220050 Minsk, Republic of Belarus
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36
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Yurkova I, Kisel M, Arnhold J, Shadyro O. Free-radical fragmentation of galactocerebrosides: a MALDI-TOF mass spectrometry study. Chem Phys Lipids 2005; 134:41-9. [PMID: 15752462 DOI: 10.1016/j.chemphyslip.2004.11.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2004] [Accepted: 11/10/2004] [Indexed: 10/26/2022]
Abstract
Analysis of final products of radiation-induced transformations of galactocerebrosides (GalCer) in aqueous dispersions has been performed using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and its combination of thin-layer chromatography (TLC). Ceramides were found to be the main products of GalCer gamma-radiolysis. From experimental results obtained in this study, as well as from the data available in the literature, an inference is made that the formation of ceramides occurs owing to fragmentation of radicals with an unpaired electron of the C2 atom of the carbohydrate moiety, formed from the starting compounds.
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Affiliation(s)
- Irina Yurkova
- Department of Chemistry, Belarusian State University, Minsk, Belarus
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37
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Schiller J, Süss R, Arnhold J, Fuchs B, Lessig J, Müller M, Petković M, Spalteholz H, Zschörnig O, Arnold K. Matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF) mass spectrometry in lipid and phospholipid research. Prog Lipid Res 2004; 43:449-88. [PMID: 15458815 DOI: 10.1016/j.plipres.2004.08.001] [Citation(s) in RCA: 252] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The interest in the analysis of lipids and phospholipids is continuously increasing due to the importance of these molecules in biochemistry (e.g. in the context of biomembranes and lipid second messengers) as well as in industry. Unfortunately, commonly used methods of lipid analysis are often time-consuming and tedious because they include previous separation and/or derivatization steps. With the development of "soft-ionization techniques" like electrospray ionization (ESI) or matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF), mass spectrometry became also applicable to lipid analysis. The aim of this review is to summarize so far available experiences in MALDI-TOF mass spectrometric analysis of lipids. It will be shown that MALDI-TOF MS can be applied to all known lipid classes and the characteristics of individual lipids will be discussed. Additionally, some selected applications in medicine and biology, e.g. mixture analysis, cell and tissue analysis and the determination of enzyme activities will be described. Advantages and disadvantages of MALDI-TOF MS in comparison to other established lipid analysis methods will be also discussed.
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Affiliation(s)
- J Schiller
- Medical Department, Institute of Medical Physics and Biophysics, University of Leipzig, Liebigstrasse 27, D-04103 Leipzig, Germany.
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