1
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Tsaplev YB, Trofimov AV. Azide ions in chemiluminescence studies. Russ Chem Bull 2023. [DOI: 10.1007/s11172-023-3715-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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2
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Mariewskaya KA, Krasilnikov MS, Korshun VA, Ustinov AV, Alferova VA. Near-Infrared Dyes: Towards Broad-Spectrum Antivirals. Int J Mol Sci 2022; 24:ijms24010188. [PMID: 36613629 PMCID: PMC9820607 DOI: 10.3390/ijms24010188] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/13/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Broad antiviral activity in vitro is known for many organic photosensitizers generating reactive oxygen species under irradiation with visible light. Low tissue penetration of visible light prevents further development of antiviral therapeutics based on these compounds. One possible solution to this problem is the development of photosensitizers with near-infrared absorption (NIR dyes). These compounds found diverse applications in the photodynamic therapy of tumors and bacterial infections, but they are scarcely mentioned as antivirals. In this account, we aimed to evaluate the therapeutic prospects of various NIR-absorbing and singlet oxygen-generating chromophores for the development of broad-spectrum photosensitizing antivirals.
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Affiliation(s)
- Kseniya A. Mariewskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Maxim S. Krasilnikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Vladimir A. Korshun
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
- Correspondence: ; Tel.: +7-4957246715
| | - Alexey V. Ustinov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Vera A. Alferova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
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Yang M, Zhang J, Shabat D, Fan J, Peng X. Near-Infrared Chemiluminescent Probe for Real-Time Monitoring Singlet Oxygen in Cells and Mice Model. ACS Sens 2020; 5:3158-3164. [PMID: 32933258 DOI: 10.1021/acssensors.0c01291] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Singlet oxygen (1O2) plays a vital role in metabolism. However, because of its extremely high reactivity and short-lived state, the in vivo detection of 1O2 is challenging. To address this issue, for the first time, we herein constructed a near-infrared (NIR) chemiluminescent probe (CL-SO) by caging the precursor of phenoxy-dioxetane scaffolds and a dicyanomethylchromone acceptor for selective 1O2 detection. This probe can detect 1O2 in vitro with a tremendous turn-on chemiluminescence signal in the NIR region (700 nm) and image intracellular 1O2 produced by the photosensitizer during the simulated action of photodynamic therapy (PDT). Notably, 1O2 level changes in the abdominal cavity and tumor of the various mice model under different stimulations and PDT action were effectively monitored by CL-SO, providing a novel chemiluminescence imaging platform to explore 1O2 generation in PDT-associated applications.
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Affiliation(s)
- Mingwang Yang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P.R. China
| | - Junwei Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P.R. China
| | - Doron Shabat
- School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978 Israel
| | - Jiangli Fan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P.R. China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, P.R. China
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Hananya N, Green O, Blau R, Satchi-Fainaro R, Shabat D. A Highly Efficient Chemiluminescence Probe for the Detection of Singlet Oxygen in Living Cells. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705803] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Nir Hananya
- School of Chemistry; Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 69978 Israel
| | - Ori Green
- School of Chemistry; Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 69978 Israel
| | - Rachel Blau
- Department of Physiology and Pharmacology; Faculty of Medicine; Tel Aviv University; Tel Aviv 69978 Israel
| | - Ronit Satchi-Fainaro
- Department of Physiology and Pharmacology; Faculty of Medicine; Tel Aviv University; Tel Aviv 69978 Israel
| | - Doron Shabat
- School of Chemistry; Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 69978 Israel
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5
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Hananya N, Green O, Blau R, Satchi-Fainaro R, Shabat D. A Highly Efficient Chemiluminescence Probe for the Detection of Singlet Oxygen in Living Cells. Angew Chem Int Ed Engl 2017; 56:11793-11796. [DOI: 10.1002/anie.201705803] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/24/2017] [Indexed: 02/02/2023]
Affiliation(s)
- Nir Hananya
- School of Chemistry; Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 69978 Israel
| | - Ori Green
- School of Chemistry; Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 69978 Israel
| | - Rachel Blau
- Department of Physiology and Pharmacology; Faculty of Medicine; Tel Aviv University; Tel Aviv 69978 Israel
| | - Ronit Satchi-Fainaro
- Department of Physiology and Pharmacology; Faculty of Medicine; Tel Aviv University; Tel Aviv 69978 Israel
| | - Doron Shabat
- School of Chemistry; Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 69978 Israel
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Arai Y, Nishinaka Y, Arai T, Morita M, Mizugishi K, Adachi S, Takaori-Kondo A, Watanabe T, Yamashita K. Uric acid induces NADPH oxidase-independent neutrophil extracellular trap formation. Biochem Biophys Res Commun 2014; 443:556-61. [DOI: 10.1016/j.bbrc.2013.12.007] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 12/02/2013] [Indexed: 01/21/2023]
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7
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Singlet oxygen is essential for neutrophil extracellular trap formation. Biochem Biophys Res Commun 2011; 413:75-9. [DOI: 10.1016/j.bbrc.2011.08.052] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 08/11/2011] [Indexed: 01/24/2023]
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8
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Miyoshi T, Arai T, Yamashita K, Sasada M, Uchiyama T. NB4 cells treated with all-trans retinoic acid generate toxic reactive oxygen species that cause endothelial hyperpermeability. Leuk Res 2010; 34:373-8. [DOI: 10.1016/j.leukres.2009.05.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Revised: 04/08/2009] [Accepted: 05/26/2009] [Indexed: 11/17/2022]
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9
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Mori H, Nishinaka Y, Nonogawa M, Sommani P, Makino K, Yamashita K, Arai T. Substituent Effects of Pterin Derivatives on Singlet Oxygen Scavenging Activity. Biol Pharm Bull 2010; 33:905-8. [DOI: 10.1248/bpb.33.905] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hiroko Mori
- Department of Anesthesia, Higashiyama Takeda Hospital
| | - Yoko Nishinaka
- School of Health Science, Faculty of Medicine, Kyoto University
| | | | | | | | - Kouhei Yamashita
- Department of Hematology and Oncology, Kyoto University Hospital
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Ozone production by amino acids contributes to killing of bacteria. Proc Natl Acad Sci U S A 2008; 105:16912-7. [PMID: 18971328 DOI: 10.1073/pnas.0807952105] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Reactive oxygen species produced by phagocytosing neutrophils are essential for innate host defense against invading microbes. Previous observations revealed that antibody-catalyzed ozone formation by human neutrophils contributed to the killing of bacteria. In this study, we discovered that 4 amino acids themselves were able to catalyze the production of an oxidant with the chemical signature of ozone from singlet oxygen in the water-oxidation pathway, at comparable level to antibodies. The resultant oxidant with the chemical signature of ozone exhibited significant bactericidal activity in our distinct cell-free system and in human neutrophils. The results also suggest that an oxidant with the chemical signature of ozone produced by neutrophils might potentiate a host defense system, when the host is challenged by high doses of infectious agents. Our findings provide biological insights into the killing of bacteria by neutrophils.
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Abstract
AbstractFour fluorescent singlet oxygen sensors: DanePy, its oxalate salt, Singlet Oxygen Sensor Green and MVP, were infiltrated into tobacco leaves and tested for toxicity, subcellular localization, light sensitivity and capacity to trap the singlet oxygen produced in photoinhibition. For reference, a broad sensitivity free radical probe, TEMPO-9-AC, was also included. Photochemical yield was approximately 15% and 10% inhibited by Singlet Oxygen Sensor Green and MVP, respectively, but was not significantly affected by the other probes. Under photoinhibitory conditions, brought about by irradiating lincomycin-treated leaves with strong photosynthetically active radiation, DanePy and Singlet Oxygen Sensor Green were responsive. Singlet Oxygen Sensor Green was also reactive to low, non-photoinhibitory light exposure of the leaf, which was not characteristic to the other probes. MVP did not respond to singlet oxygen which can partly be explained by a possible attenuation of its blue emission in the leaf, as shown by the example TEMPO-9-AC. DanePy-oxalate did not respond to photosynthetic singlet oxygen due to lack of its penetration into photosynthetic tissue and hence could be useful in detecting any singlet oxygen which escapes from a chloroplast initiation site. DanePy was localized in the chloroplasts, while Singlet Oxygen Sensor Green was mainly found in the epidermal cells preferentially associated with the nucleus.
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12
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Kawai A, Nishinaka Y, Arai T, Hirota K, Mori H, Endo N, Miyoshi T, Yamashita K, Sasada M. α-Phenyl-N-tert-butyl Nitrone Has Scavenging Activity Against Singlet Oxygen (1O2) and Attenuates 1O2-Induced Neuronal Cell Death. J Pharmacol Sci 2008; 108:545-9. [DOI: 10.1254/jphs.08233sc] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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13
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Senda C, Nishinaka Y, Arai T, Segawa H, Mori H, Nonogawa M, Endo N, Miyoshi T, Yamashita K, Sasada M. Effects of Injectable Propofol Emulsion on Singlet Oxygen Released From Activated Human Neutrophils and That Chemically Generated. J Pharmacol Sci 2008; 107:460-4. [DOI: 10.1254/jphs.08040sc] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Sommani P, Arai T, Yamashita K, Miyoshi T, Mori H, Sasada M, Makino K. Effects of Edaravone on Singlet Oxygen Released From Activated Human Neutrophils. J Pharmacol Sci 2007; 103:117-20. [PMID: 17202745 DOI: 10.1254/jphs.sc0060170] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
The effects of edaravone, a curative agent for acute brain infarction, on singlet oxygen ((1)O2) released from activated human neutrophils were examined, and the effects were compared to those of histidine, a (1)O2 singlet oxygen scavenger. The neutrophils, stimulated with opsonized zymosan, released (1)O2 that was detected by chemiluminescence using a (1)O2 specific probe, trans-1-(2'-methoxyvinyl)pyrene. Edaravone dose-dependently suppressed the (1)O2 release with an IC(50) of approximately 0.3 microM, while the IC(50) of histidine was approximately 1 mM. This (1)O2 scavenging activity of edaravone might be involved in its curative effects on acute brain infarction.
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Affiliation(s)
- Piyanart Sommani
- Institute of Advanced Energy, Kyoto University, Uji 611-0011, Japan
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15
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Posner GH, Barness I, Biggley WH, Seliger HH, Kaplan DC. Preparation of ring-tritiated and of aldehyde-14C-labelled 1-pyrenecarboxaldehyde. J Labelled Comp Radiopharm 2006. [DOI: 10.1002/jlcr.2580221005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Bulina ME, Chudakov DM, Britanova OV, Yanushevich YG, Staroverov DB, Chepurnykh TV, Merzlyak EM, Shkrob MA, Lukyanov S, Lukyanov KA. A genetically encoded photosensitizer. Nat Biotechnol 2005; 24:95-9. [PMID: 16369538 DOI: 10.1038/nbt1175] [Citation(s) in RCA: 440] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2005] [Accepted: 11/08/2005] [Indexed: 12/24/2022]
Abstract
Photosensitizers are chromophores that generate reactive oxygen species (ROS) upon light irradiation. They are used for inactivation of specific proteins by chromophore-assisted light inactivation (CALI) and for light-induced cell killing in photodynamic therapy. Here we report a genetically encoded photosensitizer, which we call KillerRed, developed from the hydrozoan chromoprotein anm2CP, a homolog of green fluorescent protein (GFP). KillerRed generates ROS upon irradiation with green light. Whereas known photosensitizers must be added to living systems exogenously, KillerRed is fully genetically encoded. We demonstrate the utility of KillerRed for light-induced killing of Escherichia coli and eukaryotic cells and for inactivating fusions to beta-galactosidase and phospholipase Cdelta1 pleckstrin homology domain.
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Affiliation(s)
- Maria E Bulina
- Institute of Bioorganic Chemistry RAS, Miklukho-Maklaya 16/10, Moscow 117997, Russia
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17
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Yasui H, Hayashi S, Sakurai H. Possible involvement of singlet oxygen species as multiple oxidants in p450 catalytic reactions. Drug Metab Pharmacokinet 2005; 20:1-13. [PMID: 15770070 DOI: 10.2133/dmpk.20.1] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cytochrome P450 (P450) constitutes a superfamily of enzymes which activate dioxygen and carry out monooxygenation reactions of large numbers of endogenous and xenobiotic compounds. Drug metabolism is a particularly important P450 function, and, therefore, elucidating the metabolic products and pathways of drugs is essential for drug development. To explain the substrate selectivity of P450 reactions, it is necessary to understand the formation of multiple activated oxygen species to determine the type of catalyzed reactions, in addition to conducting structure analyses of P450s. Although an oxo-Fe(IV)-porphyrin-pi-cation radical is regarded as an activated oxygen species in P450 reactions, a nucleophilic Fe(III)-peroxo species has also been proposed as another oxidant. In the past decade, various studies indicated that P450-catalyzed oxygenations are complex, and that a single reaction pathway cannot explain all of the experimental results. In addition, the microsomal P450 system is known to generate reactive oxygen species (ROS). However, the contribution of ROS to P450 reactions remains unclear. We recently found that singlet oxygen (1O2) was involved in both several rat liver microsomal P450 reactions and four human CYP subfamily activities, as confirmed by the ESR spin-trapping method. In this review, we describe the studies that have been conducted on the detection and characterization of ROS in P450 reactions related to drug metabolism that involve the possibility of 1O2 in the P450 catalytic cycle. Gaining an understanding of the activated oxygen species that determine the type of drug metabolism will help us to predict the important metabolites formed.
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Affiliation(s)
- Hiroyuki Yasui
- Department of Analytical and Bioinorganic Chemistry, Kyoto Pharmaceutical University, Kyoto, Japan
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Xu X, Hu X, Neill SJ, Fang J, Cai W. Fungal Elicitor Induces Singlet Oxygen Generation, Ethylene Release and Saponin Synthesis in Cultured Cells of Panax ginseng C. A. Meyer. ACTA ACUST UNITED AC 2005; 46:947-54. [PMID: 15821288 DOI: 10.1093/pcp/pci103] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Singlet oxygen is a high-energy molecular oxygen species. As one of the most active intermediates involved in chemical and biochemical reactions, singlet oxygen plays essential roles in plant responses to UV and strong light. Here, we report that Cle, an elicitor derived from fungal cell walls, induces the generation of singlet oxygen in cell cultures of ginseng, Panax ginseng. Cle treatment also triggers the activation of plasma membrane NADPH oxidase and 1-aminocyclopropane-1-carboxylic acid oxidase (ACO), subsequently leading to ethylene release and increased saponin synthesis, as shown by increased mRNA expression of squalene synthase (SQS) and squalene epoxidase (SQE), and accumulation of beta-amyrin synthase (beta-AS). Suppression of Cle-induced singlet oxygen generation or inhibition of ethylene production blocks saponin synthesis, whereas treatment of ginseng cells with ethylene or singlet oxygen induces the synthesis of saponin. Together, these results indicate that Cle-induced production of both singlet oxygen and ethylene is required for saponin synthesis, and that singlet oxygen may function upstream of ethylene during Cle-induced saponin synthesis.
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Affiliation(s)
- Xiaojie Xu
- Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, CAS, Graduate School of the Chinese Academy of Sciences, Shanghai, PR China 200032
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Teixeira MM, Cunha FQ, Noronha-Dutra A, Hothersall J. Production of singlet oxygen by eosinophils activated in vitro by C5a and leukotriene B4. FEBS Lett 1999; 453:265-8. [PMID: 10405157 DOI: 10.1016/s0014-5793(99)00728-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Using the trans-methoxyvinylpyrene analogues of benzo[a]pyrene-7,8-dihydrodiol (MVP) as a singlet oxygen ((1)O2) chemiluminescence probe, we have demonstrated that guinea pig eosinophils release (1)O2 when activated with the physiological agonists C5a and leukotriene B4. This release, which occurs at agonist concentrations as low as 10(-7) M, occurs more rapidly than activation with phorbol ester (10(-6) M), is similar in level, but is more transitory. In addition, the release of (1)O2 occurs in the absence of added bromide ions and represents, we propose, an important feature of eosinophil-mediated inflammatory damage.
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Affiliation(s)
- M M Teixeira
- Department of Pharmacology, Instituto de Ciências Biologicas, Universidade Federal de Minas Gerais, Brazil
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Noronha-Dutra AA, Epperlein MM, Woolf N. Reaction of nitric oxide with hydrogen peroxide to produce potentially cytotoxic singlet oxygen as a model for nitric oxide-mediated killing. FEBS Lett 1993; 321:59-62. [PMID: 8385630 DOI: 10.1016/0014-5793(93)80621-z] [Citation(s) in RCA: 141] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Nitric oxide, as well as being a major regulator of vascular reactivity, has been shown to be one of the mediators of cytotoxicity in macrophages. This cytotoxic effect seems to be due to the interaction between nitric oxide and oxygen-related free radicals. This study shows that, in vitro, nitric oxide reacts with hydrogen peroxide to release large amounts of chemiluminescence with the characteristics of the highly cytotoxic species, singlet oxygen. This is supported by the observation that when nitric oxide was added to a superoxide generating system, catalase inhibited the production of singlet oxygen while superoxide dismutase enhanced it.
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Affiliation(s)
- A A Noronha-Dutra
- Department of Histopathology, University College Medical School, Bland-Sutton Institute, London, UK
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21
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Review. Clin Chem Lab Med 1990. [DOI: 10.1515/cclm.1990.28.9.569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
Singlet oxygen (1 delta g) is a highly reactive, short-lived intermediate which readily oxidizes a variety of biological molecules. The biochemical production of singlet oxygen has been proposed to contribute to the destructive effects seen in a number of biological processes. Several model biochemical systems have been shown to produce singlet oxygen. These systems include the peroxidase-catalyzed oxidations of halide ions, the peroxidase-catalyzed oxidations of indole-3-acetic acid, the lipoxygenase-catalyzed oxidation of unsaturated long chain fatty acids and the bleomycin-catalyzed decomposition of hydroperoxides. Results from these model systems should not be uncritically extrapolated to living systems. Recently, however, an intact cell, the human eosinophil, was shown to generate detectable amounts of singlet oxygen. This result suggests that singlet oxygen may be shown to be a significant biochemical intermediate in a few biological processes.
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Affiliation(s)
- J R Kanofsky
- Medical Service, Edward Hines, Jr., Veterans Administration Hospital, Hines, IL 60141
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Fatur DJ, San RHC, Davison AJ, Stich HF. CHEMILUMINESCENCE IN THE OXIDATION OF 6-HYDROXYDOPAMINE: EFFECTS OF LUCIGENIN, SCAVENGERS OF ACTIVE OXYGEN, METAL CHELATORS AND THE PRESENCE OF OXYGEN. Photochem Photobiol 1987. [DOI: 10.1111/j.1751-1097.1987.tb05395.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Thompson A, Biggley WH, Posner GH, Lever JR, Seliger HH. Microsomal chemiluminescence of benzo[a]pyrene-7,8-dihydrodiol and its synthetic analogues trans- and cis-1-methoxyvinylpyrene. BIOCHIMICA ET BIOPHYSICA ACTA 1986; 882:210-9. [PMID: 3708001 DOI: 10.1016/0304-4165(86)90157-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The cis- and trans-methoxyvinylpyrene (MVP) analogues of benzo[a]pyrene-7,8-dihydrodiol (7,8-diol) produce specific microsomal chemiluminescence comparable to that produced from 7,8-diol in Aroclor-induced rat liver microsome preparations. The chemiluminescence quantum yields, emission spectra, and the concentration and the temporal kinetics of these three substrates have been examined. Radiolabelled 7,8-diol and t-MVP exhibit significant covalent binding (more than 14%) to microsomal protein when metabolized enzymatically. The extreme quenching of the dioxetane chemiluminescence by both microsomes and phosphatidylcholine, as a model phospholipid, implies that despite the low quantum yield (approx. 10(-8) photons per substrate molecule) for microsomal chemiluminescence of these substrates, a significant fraction of their microsomal oxygenations may proceed via a dioxetane pathway.
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Thompson A, Seliger HH, Posner GH. Chemiluminescent probes for singlet oxygen in biological reactions. Methods Enzymol 1986; 133:569-84. [PMID: 3821552 DOI: 10.1016/0076-6879(86)33090-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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26
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Stohs SJ, Al-Bayati ZF, Hassan MQ, Murray WJ, Mohammadpour HA. Glutathione peroxidase and reactive oxygen species in TCDD-induced lipid peroxidation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1986; 197:357-65. [PMID: 3020934 DOI: 10.1007/978-1-4684-5134-4_33] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Previous studies have shown that high doses of TCDD induce hepatic lipid peroxidation and inhibit selenium dependent glutathione peroxidase (GSH-Px) activity. The dose dependent effects of TCDD on hepatic lipid peroxidation (malondialdehyde content) and GSH-Px activity were determined. A dose as low as 1 microgram/kg induced hepatic lipid peroxidation and inhibited GSH-Px. Based on the use of scavengers of reactive oxygen species, lipid peroxidation (malondialdehyde formation) by hepatic microsomes from both control and TCDD-treated rats appears to be due primarily to H2O2. The results indicate that superoxide, hydroxyl radical and singlet oxygen are also involved. The differences in the reactive oxygen species involved in microsomal lipid peroxidation between control and TCDD treated animals appear to be quantitative rather than qualitative. A 5.9-fold greater rate of malondialdehyde (MDA) formation by microsomes from TCDD treated animals occurred as compared to controls, while livers of TCDD rats had an MDA content that was 5.0-fold greater than the controls. These differences may be due in part to an enhanced production of H2O2 as well as a decrease in the activity of selenium dependent glutathione peroxidase which metabolizes H2O2.
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