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Muller J, Marchisio L, Attia R, Zedet A, Maradan R, Vallet M, Aebischer A, Harakat D, Senejoux F, Ramseyer C, Foley S, Cardey B, Girard C, Pudlo M. A colorimetric assay adapted to fragment screening revealing aurones and chalcones as new arginase inhibitors. RSC Med Chem 2024; 15:1722-1730. [PMID: 38784454 PMCID: PMC11110760 DOI: 10.1039/d3md00713h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/23/2024] [Indexed: 05/25/2024] Open
Abstract
Arginase, a difficult-to-target metalloenzyme, is implicated in a wide range of diseases, including cancer, infectious, and cardiovascular diseases. Despite the medical need, existing inhibitors have limited structural diversity, consisting predominantly of amino acids and their derivatives. The search for innovative arginase inhibitors has now extended to screening approaches. Due to the small and narrow active site of arginase, screening must meet the criteria of fragment-based screening. However, the limited binding capacity of fragments requires working at high concentrations, which increases the risk of interference and false positives. In this study, we investigated three colorimetric assays and selected one based on interference for screening under these challenging conditions. The subsequent adaptation and application to the screening a library of metal chelator fragments resulted in the identification of four compounds with moderate activity. The synthesis and evaluation of a series of compounds from one of the hits led to compound 21a with an IC50 value of 91.1 μM close to the reference compound piceatannol. Finally, molecular modelling supports the potential binding of aurones and chalcones to the active site of arginase, suggesting them as new candidates for the development of novel arginase inhibitors.
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Affiliation(s)
- Jason Muller
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Luca Marchisio
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Rym Attia
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Andy Zedet
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Robin Maradan
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Maxence Vallet
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Alison Aebischer
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Dominique Harakat
- URCATech, ICMR, CNRS UMR 7312 URCA Bât 18, BP 1039, Cedex 2 51687 Reims France
| | - François Senejoux
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Christophe Ramseyer
- Chrono-environnement UMR6249, CNRS Université de Franche-Comté F-25000 Besançon France
| | - Sarah Foley
- Chrono-environnement UMR6249, CNRS Université de Franche-Comté F-25000 Besançon France
| | - Bruno Cardey
- Chrono-environnement UMR6249, CNRS Université de Franche-Comté F-25000 Besançon France
| | - Corine Girard
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
| | - Marc Pudlo
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT F-25000 Besançon France
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Zedet A, Kanga Y, Pudlo M, Senejoux F, Girard C. Arginase inhibitory activities of chemical constituents from Macaranga hurifolia Beille leaves. Nat Prod Res 2023:1-6. [PMID: 37926916 DOI: 10.1080/14786419.2023.2275267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 10/17/2023] [Indexed: 11/07/2023]
Abstract
The methanolic extract of the leaves of Macaranga hurifolia Beille showed arginase inhibitory activity (40% at 100 µg/mL) and was then fractionated to obtain nine polyphenolic compounds. Their structures were elucidated on the basis of NMR spectroscopic data, and by comparison with data previously reported in the literature, as gallic acid (1), 3,4-dihydroxybenzoic acid (2), chlorogenic acid, (3), corilagin (4), cynaroside (5), cosmosiin (6), hyperoside (7) isoquercitrin (8) and guajaverin (9). These compounds have been evaluated as arginase inhibitors. Compounds 4, 7, 8 and 9 showed varying arginase inhibitory activities with IC50 values ranging from 102 to 302 μM. All the isolated compounds were previously identified in this species but their activities on arginase are reported here for the first time.
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Affiliation(s)
- Andy Zedet
- PEPITE, Université de Franche-Comté, Besançon, France
| | - Yao Kanga
- UFR Sciences Biologiques, Département de Biologie Végétale, Université PELEFORO GON COULIBALY, Korhogo, BP, Côte d'Ivoire
| | - Marc Pudlo
- PEPITE, Université de Franche-Comté, Besançon, France
| | | | - Corine Girard
- PEPITE, Université de Franche-Comté, Besançon, France
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3
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Argiolas A, Argiolas FM, Argiolas G, Melis MR. Erectile Dysfunction: Treatments, Advances and New Therapeutic Strategies. Brain Sci 2023; 13:802. [PMID: 37239274 PMCID: PMC10216368 DOI: 10.3390/brainsci13050802] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/08/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Erectile dysfunction (ED) is the inability to get and maintain an adequate penile erection for satisfactory sexual intercourse. Due to its negative impacts on men's life quality and increase during aging (40% of men between 40 and 70 years), ED has always attracted researchers of different disciplines, from urology, andrology and neuropharmacology to regenerative medicine, and vascular and prosthesis implant surgery. Locally and/or centrally acting drugs are used to treat ED, e.g., phosphodiesterase 5 inhibitors (first in the list) given orally, and phentolamine, prostaglandin E1 and papaverine injected intracavernously. Preclinical data also show that dopamine D4 receptor agonists, oxytocin and α-MSH analogues may have a role in ED treatment. However, since pro-erectile drugs are given on demand and are not always efficacious, new strategies are being tested for long lasting cures of ED. These include regenerative therapies, e.g., stem cells, plasma-enriched platelets and extracorporeal shock wave treatments to cure damaged erectile tissues. Although fascinating, these therapies are laborious, expensive and not easily reproducible. This leaves old vacuum erection devices and penile prostheses as the only way to get an artificial erection and sexual intercourse with intractable ED, with penile prosthesis used only by accurately selected patients.
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Affiliation(s)
- Antonio Argiolas
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy; (F.M.A.); (M.R.M.)
| | - Francesco Mario Argiolas
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy; (F.M.A.); (M.R.M.)
| | - Giacomo Argiolas
- General Medicine Unit, Hospital San Michele, ARNAS“G. Brotzu”, Piazzale Ricchi 1, 09100 Cagliari, Italy;
| | - Maria Rosaria Melis
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, 09042 Monserrato, Italy; (F.M.A.); (M.R.M.)
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4
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Besednova NN, Andryukov BG, Zaporozhets TS, Kuznetsova TA, Kryzhanovsky SP, Ermakova SP, Galkina IV, Shchelkanov MY. Molecular Targets of Brown Algae Phlorotannins for the Therapy of Inflammatory Processes of Various Origins. Mar Drugs 2022; 20:243. [PMID: 35447916 PMCID: PMC9025421 DOI: 10.3390/md20040243] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/24/2022] [Accepted: 03/29/2022] [Indexed: 01/27/2023] Open
Abstract
Inflammatory reactions are part of a complex biological response that plays a vital role in the appearance of various stimuli resulting from tissue and cell damage, the invasion of pathogenic bacteria, and the formation of the subsequent adaptive immune response. The production of many triggers and mediators of inflammation, which are inducers of pro-inflammatory factors, is controlled by numerous differentiation programs, through which inflammation is resolved and tissue homeostasis is restored. However, prolonged inflammatory responses or dysregulation of pro-inflammatory mechanisms can lead to chronic inflammation. Modern advances in biotechnology have made it possible to characterize the anti-inflammatory activity of phlorotannins, polyphenolic compounds from brown seaweed, and the mechanisms by which they modulate the inflammatory response. The purpose of this review is to analyze and summarize the results of numerous experimental in vitro and in vivo studies, illustrating the regulatory mechanisms of these compounds, which have a wide range of biological effects on the body. The results of these studies and the need for further research are discussed.
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Affiliation(s)
- Natalya N. Besednova
- Somov Research Institute of Epidemiology and Microbiology by Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (M.Y.S.)
| | - Boris G. Andryukov
- Somov Research Institute of Epidemiology and Microbiology by Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (M.Y.S.)
- School of Medicine, Far Eastern Federal University (FEFU), 690091 Vladivostok, Russia;
| | - Tatyana S. Zaporozhets
- Somov Research Institute of Epidemiology and Microbiology by Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (M.Y.S.)
| | - Tatyana A. Kuznetsova
- Somov Research Institute of Epidemiology and Microbiology by Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (M.Y.S.)
| | - Sergey P. Kryzhanovsky
- Medical Association of the Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia;
| | - Svetlana P. Ermakova
- Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia;
| | - Irina V. Galkina
- School of Medicine, Far Eastern Federal University (FEFU), 690091 Vladivostok, Russia;
| | - Mikhail Yu. Shchelkanov
- Somov Research Institute of Epidemiology and Microbiology by Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (M.Y.S.)
- School of Medicine, Far Eastern Federal University (FEFU), 690091 Vladivostok, Russia;
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, 690091 Vladivostok, Russia
- Zhirmunsky National Scientific Center, Marine Biology of the Far Eastern Branch of the Russian Academy of Sciences, 690091 Vladivostok, Russia
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Osorio C, Sfera A, Anton JJ, Thomas KG, Andronescu CV, Li E, Yahia RW, Avalos AG, Kozlakidis Z. Virus-Induced Membrane Fusion in Neurodegenerative Disorders. Front Cell Infect Microbiol 2022; 12:845580. [PMID: 35531328 PMCID: PMC9070112 DOI: 10.3389/fcimb.2022.845580] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/01/2022] [Indexed: 12/15/2022] Open
Abstract
A growing body of epidemiological and research data has associated neurotropic viruses with accelerated brain aging and increased risk of neurodegenerative disorders. Many viruses replicate optimally in senescent cells, as they offer a hospitable microenvironment with persistently elevated cytosolic calcium, abundant intracellular iron, and low interferon type I. As cell-cell fusion is a major driver of cellular senescence, many viruses have developed the ability to promote this phenotype by forming syncytia. Cell-cell fusion is associated with immunosuppression mediated by phosphatidylserine externalization that enable viruses to evade host defenses. In hosts, virus-induced immune dysfunction and premature cellular senescence may predispose to neurodegenerative disorders. This concept is supported by novel studies that found postinfectious cognitive dysfunction in several viral illnesses, including human immunodeficiency virus-1, herpes simplex virus-1, and SARS-CoV-2. Virus-induced pathological syncytia may provide a unified framework for conceptualizing neuronal cell cycle reentry, aneuploidy, somatic mosaicism, viral spreading of pathological Tau and elimination of viable synapses and neurons by neurotoxic astrocytes and microglia. In this narrative review, we take a closer look at cell-cell fusion and vesicular merger in the pathogenesis of neurodegenerative disorders. We present a "decentralized" information processing model that conceptualizes neurodegeneration as a systemic illness, triggered by cytoskeletal pathology. We also discuss strategies for reversing cell-cell fusion, including, TMEM16F inhibitors, calcium channel blockers, senolytics, and tubulin stabilizing agents. Finally, going beyond neurodegeneration, we examine the potential benefit of harnessing fusion as a therapeutic strategy in regenerative medicine.
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Affiliation(s)
- Carolina Osorio
- Department of Psychiatry, Loma Linda University, Loma Linda, CA, United States
| | - Adonis Sfera
- Department of Psychiatry, Loma Linda University, Loma Linda, CA, United States
- Department of Psychiatry, Patton State Hospital, San Bernardino, CA, United States
| | - Jonathan J. Anton
- Department of Psychiatry, Patton State Hospital, San Bernardino, CA, United States
| | - Karina G. Thomas
- Department of Psychiatry, Patton State Hospital, San Bernardino, CA, United States
| | - Christina V. Andronescu
- Medical Anthropology – Department of Anthropology, Stanford University, Stanford, CA, United States
| | - Erica Li
- School of Medicine, University of California, Riverside, Riverside, CA, United States
| | - Rayan W. Yahia
- School of Medicine, University of California, Riverside, Riverside, CA, United States
| | - Andrea García Avalos
- Universidad Nacional Autónoma de México (UNAM), Facultad de Medicina Campus, Ciudad de Mexico, Mexico
| | - Zisis Kozlakidis
- International Agency for Research on Cancer (IARC), Lyon, France
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Ugwoke CK, Cvetko E, Umek N. Skeletal Muscle Microvascular Dysfunction in Obesity-Related Insulin Resistance: Pathophysiological Mechanisms and Therapeutic Perspectives. Int J Mol Sci 2022; 23:ijms23020847. [PMID: 35055038 PMCID: PMC8778410 DOI: 10.3390/ijms23020847] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/09/2022] [Accepted: 01/11/2022] [Indexed: 02/04/2023] Open
Abstract
Obesity is a worrisomely escalating public health problem globally and one of the leading causes of morbidity and mortality from noncommunicable disease. The epidemiological link between obesity and a broad spectrum of cardiometabolic disorders has been well documented; however, the underlying pathophysiological mechanisms are only partially understood, and effective treatment options remain scarce. Given its critical role in glucose metabolism, skeletal muscle has increasingly become a focus of attention in understanding the mechanisms of impaired insulin function in obesity and the associated metabolic sequelae. We examined the current evidence on the relationship between microvascular dysfunction and insulin resistance in obesity. A growing body of evidence suggest an intimate and reciprocal relationship between skeletal muscle microvascular and glucometabolic physiology. The obesity phenotype is characterized by structural and functional changes in the skeletal muscle microcirculation which contribute to insulin dysfunction and disturbed glucose homeostasis. Several interconnected etiologic molecular mechanisms have been suggested, including endothelial dysfunction by several factors, extracellular matrix remodelling, and induction of oxidative stress and the immunoinflammatory phenotype. We further correlated currently available pharmacological agents that have deductive therapeutic relevance to the explored pathophysiological mechanisms, highlighting a potential clinical perspective in obesity treatment.
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Prastiwi R, Elya B, Hanafi M, Sauriasari R, Desmiaty Y, Dewanti E, Herowati R. The chemical constituents of Sterculia comosa (wall) Roxb woods for arginase inhibitory, antioxidant activity, and molecular docking against SARS CoV-2 protein. Heliyon 2022; 8:e08798. [PMID: 35079656 PMCID: PMC8769564 DOI: 10.1016/j.heliyon.2022.e08798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/16/2021] [Accepted: 01/13/2022] [Indexed: 10/27/2022] Open
Abstract
Flavonoids and phenols have an arginase inhibitory and antioxidant activity. The Sterculia genus has phenols and flavonoids content. This study aimed to investigate the arginase inhibitory and antioxidant activity of the chemical constituent of Sterculia comosa (wall) Roxb and also their binding affinities to arginase. The most active extract was methanol extract. This active extract was determined for its arginase inhibitory and antioxidant activity, determined the total phenols and total flavonoids, and identified chemical compound. The methanol extract has IC50 2.787 μg/ml for arginase inhibitory activity and IC50 4,199 μg/ml for DPPH scavenging activity. The total phenols 723.61 mg GAE/gr, total flavonoids content 28.96 mg QE/gr extract. The chemical constituent: KC4.4.6 ((-)-2-(E)-caffeoyl-D-glyceric acid) and KC4.4.5.1 (trans-isoferulic acid) have an arginase inhibitory activity KC4.4.6: 98,03 μg/ml and KC4.4.5.1: 292,58 μg/ml. Antioxidant activity with DPPH methods KC4.4.6: 48,77 μg/ml and KC4.4.5.1: 88,08 μg/ml. Antioxidant by FRAP methods KC4.4.6: 16,4 FeEAC mol/g and KC4.4.5.1: 15,79 FeEAC mol/g. The isolate trans-isoferulic acid predicted has good interaction to arginase. Isolate KC4.4.6. Predicted has good interaction to PLPro of SARS CoV-2 PLpro. However, both isolates did not show good interaction to 3CLPro, nsp12, and Spike protein of SARS CoV-2.
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Affiliation(s)
- Rini Prastiwi
- Faculty of Pharmacy and Science, Universitas Muhammadiyah Prof. Dr. Hamka, 1340, Jakarta, Indonesia
| | - Berna Elya
- Faculty of Pharmacy Universitas Indonesia, Depok, 16424, West Java, Indonesia
| | - Muhammad Hanafi
- Research Centre for Chemistry - National Research and Innovation Agency (BRIN), Indonesia.,Faculty of Pharmacy Universitas Pancasila, Jakarta, West Java, Indonesia
| | - Rani Sauriasari
- Faculty of Pharmacy Universitas Indonesia, Depok, 16424, West Java, Indonesia
| | - Yesi Desmiaty
- Faculty of Pharmacy Universitas Pancasila, Jakarta, West Java, Indonesia
| | - Ema Dewanti
- Faculty of Pharmacy and Science, Universitas Muhammadiyah Prof. Dr. Hamka, 1340, Jakarta, Indonesia
| | - Rina Herowati
- Faculty of Pharmacy Universitas Setia Budi, Surakarta, Central of Java, Indonesia
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Muller J, Attia R, Zedet A, Girard C, Pudlo M. An Update on Arginase Inhibitors and Inhibitory Assays. Mini Rev Med Chem 2021; 22:1963-1976. [PMID: 34967285 DOI: 10.2174/1389557522666211229105703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/18/2021] [Accepted: 10/22/2021] [Indexed: 11/22/2022]
Abstract
Arginase, which converts arginine into ornithine and urea, is a promising therapeutic target. Arginase is involved in cardiovascular diseases, parasitic infections and, through a critical role in immunity, in some cancers. There is a need to develop effective arginase inhibitors and therefore efforts to identify and optimize new inhibitors are increasing. Several methods of evaluating arginase activity are available, but few directly measure the product. Radiometric assays need to separate urea and dying reactions require acidic conditions and sometimes heating. Hence, there are a variety of different approaches available, and each approach has its own limits and benefits. In this review, we provide an update on arginase inhibitors, followed by a discussion on available arginase assays and alternative methods, with a focus on the intrinsic biases and parameters that are likely to impact results.
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Affiliation(s)
- Jason Muller
- PEPITE EA4267, Université de Bourgogne Franche-Comté, F-25030 Besançon, France
| | - Rym Attia
- PEPITE EA4267, Université de Bourgogne Franche-Comté, F-25030 Besançon, France
| | - Andy Zedet
- PEPITE EA4267, Université de Bourgogne Franche-Comté, F-25030 Besançon, France
| | - Corine Girard
- PEPITE EA4267, Université de Bourgogne Franche-Comté, F-25030 Besançon, France
| | - Marc Pudlo
- PEPITE EA4267, Université de Bourgogne Franche-Comté, F-25030 Besançon, France
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Merkhan M, Mohammad J, Fathi Z, Younis Z, Mahmood SM, Mohammed M. Silent hyperlipidaemia modulated vascular endothelial markers. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e67959] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The aetiology of ischemic heart diseases is mainly based on atherosclerosis of coronary artery. Inflammation and oxidative reactions are initiating and aggravating the illness resulting in pathological remodelling of vasculaturze at site of injury. Endothelium lining of blood vessels participated in the reaction biochemically through releasing some proteins into circulatory system which further complicate the condition. The aim of this study was to determine early diagnosed hyperlipidaemia-associated changes of the plasma level of some of these endothelial biomolecules. Compared to healthy control, hyperlipidaemic patients have significantly increased arginase, metalloendopeptidase, peroxidase, myeloperoxidase, and peroxynitrite with concomitant reduction in arylesterase and nitric oxide. The present study concluded that hyperlipidaemia play a great role in modulation of certain plasma protein markers which might be directly related to patient pathological condition or could be used as a tool for diagnosis or patient follow up indicating the stage of vasculature remodelling, healing, inflammation or resolution.
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Minozzo BR, de Andrade EA, Vellosa JCR, Lipinski LC, Fernandes D, Nardi GM, Rodrigues RP, Kitagawa RR, Girard C, Demougeot C, Beltrame FL. Polyphenolic compounds of Euphorbia umbellata (Pax) Bruyns (Euphorbiaceae) improved endothelial dysfunction through arginase inhibition. Phytother Res 2021; 35:2557-2567. [PMID: 33350522 DOI: 10.1002/ptr.6986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 12/04/2020] [Accepted: 12/04/2020] [Indexed: 11/30/2023]
Abstract
Euphorbia umbellata is used for its anti-inflammatory properties; however, there are limited data available regarding its effects on vascular function. Its bark is rich in polyphenolic compounds, which potentially improve endothelial dysfunction (ED). This study proposes to investigate the effects of E. umbellata bark extracts and its polyphenolic compounds on arginase (ARG) activity and nitric oxide (NO)-related targets. Chromatographic procedures were used for the chemical characterisation of the extracts. Furthermore, in silico (molecular docking), in vitro (ARG inhibition), in vivo (streptozotocin-induced hyperglycemia model), and ex vivo (l-arginine metabolism, vascular reactivity, western blot, and biochemical) techniques were carried out. Quercetin, gallic acid, and ellagic acid were identified in the extracts. In silico screening predicted that gallic acid and quercetin would have the most promising interactions with ARG -identified cavities. This was confirmed in vitro as both compounds had a direct inhibitory effect on ARG, as was the case regarding the extracts. Oral treatment preserved endothelium-dependent vasodilation through ARG inhibition together with an increase in l-arginine bioavailability and endothelial NO synthase expression. Biochemical parameters determined the lack of toxicity for sub-chronic treatment. E. umbellata bark extracts and its compounds can contribute to ED treatment, at least partly, through the inhibition of vascular ARG.
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Affiliation(s)
- Bruno Rodrigo Minozzo
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Evelyn Assis de Andrade
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, Brazil
| | | | | | - Daniel Fernandes
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Geisson Marcos Nardi
- Department of Morphology, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | | | - Corine Girard
- PEPITE EA 4267, University Bourgogne Franche-Comté, Besançon, France
| | - Céline Demougeot
- PEPITE EA 4267, University Bourgogne Franche-Comté, Besançon, France
| | - Flávio Luís Beltrame
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, Brazil
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Ecklonia cava Extract and Its Derivative Dieckol Promote Vasodilation by Modulating Calcium Signaling and PI3K/AKT/eNOS Pathway in In Vitro and In Vivo Models. Biomedicines 2021; 9:biomedicines9040438. [PMID: 33921856 PMCID: PMC8073412 DOI: 10.3390/biomedicines9040438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 12/22/2022] Open
Abstract
Nitric oxide (NO), an endothelial-derived relaxing factor synthesized by endothelial nitric oxide synthase (eNOS) in endothelial cells, enhances vasodilation by modulating vascular tone. The calcium concentration critically influences eNOS activation in endothelial cells. Thus, modulation of calcium-dependent signaling pathways may be a potential therapeutic strategy to enhance vasodilation. Marine algae reportedly possess protective effects against cardiovascular disorders, including hypertension and vascular dysfunction; however, the underlying molecular signaling pathways remain elusive. In the present study, we extracted and isolated dieckol from Ecklonia cava and investigated calcium transit-enhanced vasodilation. Calcium modulation via the well-known M3 muscarinic acetylcholine receptor (AchM3R), which is linked to NO formation, was investigated and the vasodilatory effect of dieckol was verified. Our results indicated that dieckol effectively promoted NO generation via the PI3K/Akt/eNOS axis and calcium transients influenced by AchM3R. We also treated Tg(flk: EGFP) transgenic zebrafish with dieckol to assess its vasodilatory effect. Dieckol promoted vasodilation by enlarging the dorsal aorta diameter, thus regulating blood flow velocity. In conclusion, our findings suggest that dieckol modulates calcium transit through AchM3R, increases endothelial-dependent NO production, and efficiently enhances vasodilation. Thus, E. cava and its derivative, dieckol, can be considered as potential natural vasodilators.
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Borek B, Gajda T, Golebiowski A, Blaszczyk R. Boronic acid-based arginase inhibitors in cancer immunotherapy. Bioorg Med Chem 2020; 28:115658. [PMID: 32828425 DOI: 10.1016/j.bmc.2020.115658] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/27/2020] [Accepted: 07/15/2020] [Indexed: 02/08/2023]
Abstract
Arginase is an enzyme that converts l-arginine to l-ornithine and urea in the urea cycle. There are two isoforms of arginase in mammals: ARG-1 and ARG-2. l-Arginine level changes occur in patients with various types of affliction. An overexpression of arginase leads to the depletion of arginine and then to inhibition of the growth of T and NK cells, and in effect to the tumor escape of the immune response. Based on those observations, an inhibition of arginase is proposed as a method to improve anti-tumor immune responses (via an activation and proliferation of T and NK cells). Boronic acid derivatives as arginase inhibitors are leading, potential therapeutic agents for the treatment of several diseases. All these compounds are derived from the original 2-(S)-amino-6-boronohexanoic acid (ABH), the first boronic acid arginase inhibitor proposed by Christianson et al. This article focuses on the review of such sub-class of arginase inhibitors and highlights their SAR and PK properties. It covers molecules published until early 2020, including patent applications.
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Affiliation(s)
- Bartlomiej Borek
- OncoArendi Therapeutics SA, 101 Żwirki i Wigury St, 02-089 Warsaw, Poland.
| | - Tadeusz Gajda
- Institute of Organic Chemistry, Faculty of Chemistry, Technical University of Lodz, 116 Stefana Żeromskiego St, 90-924 Łódź, Poland
| | - Adam Golebiowski
- OncoArendi Therapeutics SA, 101 Żwirki i Wigury St, 02-089 Warsaw, Poland
| | - Roman Blaszczyk
- OncoArendi Therapeutics SA, 101 Żwirki i Wigury St, 02-089 Warsaw, Poland
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Arraki K, Totoson P, Attia R, Zedet A, Pudlo M, Messaoud C, Demougeot C, Girard C. Arginase inhibitory properties of flavonoid compounds from the leaves of Mulberry (Morus alba, Moraceae). J Pharm Pharmacol 2020; 72:1269-1277. [PMID: 32496585 DOI: 10.1111/jphp.13297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 04/25/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES We aimed to isolate and identify bioactive molecules from Morus alba (Moraceae) leaves having arginase inhibitory activity towards the combat of clinical outcomes related to endothelial dysfunction. METHOD Extraction and isolation were carried out by successive macerations, prepurification by using a Solid Phase Extraction (SPE) and separation using preparative PLC. The structures of the isolated components were established and confirmed by spectroscopic analyses, including the ESI-HRMS and NMR spectroscopic investigations. Biological evaluation was performed by using an in vitro assay with liver bovine purified arginase and by an ex vivo aortic ring study. KEY FINDINGS We demonstrated that a phenolic extract from the leaves of M. alba possesses mammalian arginase inhibitory capacities. Investigation of the chemical constituents of its leaves results in the isolation and identification of ten compounds investigated in vitro for their arginase inhibitory capacities. Four compounds showed significant inhibition of arginase, with percentage inhibition ranging from 54% to 83% at 100 µm. In isolated rat aortic rings incubated with NO synthase inhibitor, Luteolin-7-diglucoside compound (2) was able to increase acetylcholine-induced relaxation. CONCLUSIONS These results demonstrated the attractive ability of M. alba to be a potential source for the discovery of new active products on vascular system.
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Affiliation(s)
- Kamel Arraki
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, Besançon, France
| | - Perle Totoson
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, Besançon, France
| | - Rym Attia
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, Besançon, France.,Laboratory of Nanobiotechnology and Medicinal Plants, Department of Biology, National Institute of Applied Science and Technology (INSAT), University of Carthage, Tunis Cedex, Tunisia
| | - Andy Zedet
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, Besançon, France
| | - Marc Pudlo
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, Besançon, France
| | - Chokri Messaoud
- Laboratory of Nanobiotechnology and Medicinal Plants, Department of Biology, National Institute of Applied Science and Technology (INSAT), University of Carthage, Tunis Cedex, Tunisia
| | | | - Corine Girard
- PEPITE EA4267, Univ. Bourgogne Franche-Comté, Besançon, France
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14
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Muller J, Cardey B, Zedet A, Desingle C, Grzybowski M, Pomper P, Foley S, Harakat D, Ramseyer C, Girard C, Pudlo M. Synthesis, evaluation and molecular modelling of piceatannol analogues as arginase inhibitors. RSC Med Chem 2020; 11:559-568. [PMID: 33479657 PMCID: PMC7593889 DOI: 10.1039/d0md00011f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/29/2020] [Indexed: 11/21/2022] Open
Abstract
Arginase is involved in a wide range of pathologies including cardiovascular diseases and infectious diseases whilst it is also a promising target to improve cancer immunotherapy. To date, only a limited number of inhibitors of arginase have been reported. Natural polyphenols, among them piceatannol, are moderate inhibitors of arginase. Herein, we report our efforts to investigate catechol binding by quantum chemistry and generate analogues of piceatannol. In this work, we synthesized a novel series of amino-polyphenols which were then evaluated as arginase inhibitors. Their structure-activity relationships were elucidated by deep quantum chemistry modelling. 4-((3,4-Dihydroxybenzyl)amino)benzene-1,2-diol 3t displays a mixed inhibition activity on bovine and human arginase I with IC50 (K i) values of 76 (82) μM and 89 μM, respectively.
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Affiliation(s)
- J Muller
- PEPITE EA4267 , Univ. Bourgogne Franche-Comté , F-25000 Besançon , France . ; Tel: +(33) 381 665 542
| | - B Cardey
- Laboratoire Chrono-environnement (UMR CNRS 6249) , Univ. Bourgogne Franche-Comté , F-25000 Besançon , France
| | - A Zedet
- PEPITE EA4267 , Univ. Bourgogne Franche-Comté , F-25000 Besançon , France . ; Tel: +(33) 381 665 542
| | - C Desingle
- PEPITE EA4267 , Univ. Bourgogne Franche-Comté , F-25000 Besançon , France . ; Tel: +(33) 381 665 542
| | - M Grzybowski
- OncoArendi Therapeutics , PL02089 Warsaw , Poland
| | - P Pomper
- OncoArendi Therapeutics , PL02089 Warsaw , Poland
| | - S Foley
- Laboratoire Chrono-environnement (UMR CNRS 6249) , Univ. Bourgogne Franche-Comté , F-25000 Besançon , France
| | - D Harakat
- Institut de Chimie Moléculaire de Reims (UMR CNRS 7312) , Univ. Reims Champagne Ardenne , F-51000 Reims , France
| | - C Ramseyer
- Laboratoire Chrono-environnement (UMR CNRS 6249) , Univ. Bourgogne Franche-Comté , F-25000 Besançon , France
| | - C Girard
- PEPITE EA4267 , Univ. Bourgogne Franche-Comté , F-25000 Besançon , France . ; Tel: +(33) 381 665 542
| | - M Pudlo
- PEPITE EA4267 , Univ. Bourgogne Franche-Comté , F-25000 Besançon , France . ; Tel: +(33) 381 665 542
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Bujor A, Miron A, Luca SV, Skalicka-Wozniak K, Silion M, Trifan A, Girard C, Demougeot C, Totoson P. Vasorelaxant effects of Crataegus pentagyna: Links with arginase inhibition and phenolic profile. JOURNAL OF ETHNOPHARMACOLOGY 2020; 252:112559. [PMID: 31935497 DOI: 10.1016/j.jep.2020.112559] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Crataegus leaves, flowers and fruits have been traditionally used to improve blood circulation, numerous preclinical and clinical studies supporting the cardiovascular benefits of Crataegus preparations. In this respect, there is very limited data on Crataegus pentagyna; in addition, the chemical profile of this species is still incompletely elucidated. AIM OF THE STUDY The objective of this study was to examine the cardiovascular benefits of Crataegus pentagyna Waldst. et Kit. ex Willd. (small-flowered black hawthorn, Rosaceae) extracts (leaf, flower and fruit ethyl acetate extracts) and the underlying mechanisms. We hypothesized that C. pentagyna extracts might exert vasodilatory effects and inhibit arginase activity due, in large part, to their polyphenolic constituents. MATERIALS AND METHODS C. pentagyna extracts induced-relaxation and the mechanisms involved were studied ex vivo in isolated aortic rings from Sprague-Dawley rats. The inhibitory effects on bovine liver arginase I were assessed by an in vitro assay. Metabolite profiling of C. pentagyna extracts was performed and the most endothelium- and nitric oxide synthase-dependent; flower extract additionally reduced Ca2+ entry and, to a lesser extent, Ca2+ release from the sarcoplasmic reticulum. C. pentagyna proved to be an important source of arginase inhibitors with potential benefits in endothelial dysfunction that remains to be explored.
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Affiliation(s)
- Alexandra Bujor
- Department of Pharmacognosy, Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115, Iasi, Romania; PEPITE EA 4267, FHU INCREASE, University Bourgogne Franche-Comté, 19 rue Ambroise Paré, F-25030, Besançon, France.
| | - Anca Miron
- Department of Pharmacognosy, Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115, Iasi, Romania.
| | - Simon Vlad Luca
- Department of Pharmacognosy, Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115, Iasi, Romania; Biothermodynamics, TUM School of Life and Food Sciences Weihenstephan, Technical University of Munich, Maximus-von-Imhof-Forum 2, 85354, Freising, Germany.
| | - Krystyna Skalicka-Wozniak
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, Chodzki 1, 20-093, Lublin, Poland.
| | - Mihaela Silion
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487, Iasi, Romania.
| | - Adriana Trifan
- Department of Pharmacognosy, Grigore T. Popa University of Medicine and Pharmacy, 16 Universitatii Street, 700115, Iasi, Romania.
| | - Corine Girard
- PEPITE EA 4267, FHU INCREASE, University Bourgogne Franche-Comté, 19 rue Ambroise Paré, F-25030, Besançon, France.
| | - Céline Demougeot
- PEPITE EA 4267, FHU INCREASE, University Bourgogne Franche-Comté, 19 rue Ambroise Paré, F-25030, Besançon, France.
| | - Perle Totoson
- PEPITE EA 4267, FHU INCREASE, University Bourgogne Franche-Comté, 19 rue Ambroise Paré, F-25030, Besançon, France.
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Saliu JA, Oyeleye SI, Olasehinde TA, Oboh G. Modulatory effects of stonebreaker (Phyllanthus amarus) and bitter gourd (Momordica charantia) on enzymes linked with cardiac function in heart tissue of doxorubicin-stressed rats. Drug Chem Toxicol 2019; 45:331-339. [DOI: 10.1080/01480545.2019.1700271] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jamiyu A. Saliu
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Nigeria
| | - Sunday Idowu Oyeleye
- Biomedical Technology Department, Federal University of Technology, Akure, Nigeria
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology Akure, Akure, Nigeria
| | - Tosin A. Olasehinde
- Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
- Nutrition and Toxicology Division, Food Technology Department, Federal Institute of Industrial Research Oshodi, Akure, Nigeria
| | - Ganiyu Oboh
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology Akure, Akure, Nigeria
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Metabolite profiling, arginase inhibition and vasorelaxant activity of Cornus mas, Sorbus aucuparia and Viburnum opulus fruit extracts. Food Chem Toxicol 2019; 133:110764. [PMID: 31437471 DOI: 10.1016/j.fct.2019.110764] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/08/2019] [Accepted: 08/15/2019] [Indexed: 12/18/2022]
Abstract
The present study investigated the effects of Cornus mas, Sorbus aucuparia and Viburnum opulus fruit extracts on arginase activity and arterial vasodilation. V. opulus fruit extract exerted the highest vasorelaxant activity in phenylephrine precontracted rat aortic rings (EC50 = 6.31 ± 1.61 μg/mL) and a significant inhibition of arginase (IC50 = 71.02 ± 3.06 μg/mL). By contrast, S. aucuparia and C. mas fruit extracts showed no important anti-arginase activity and a significantly weaker activity in the rat aortic rings relaxation assay (EC50 = 100.9 ± 11.63 and 78.52 ± 8.59 μg/mL, respectively). For all extracts, the main mechanism of vasodilation was proven to be endothelium-dependent. HPLC-ESI-Q-TOF-MS/MS studies revealed a very complex metabolite profiling in all three extracts with chlorogenic acid accounting for 30.89, 0.72 and 2.03 mg/g in V. opulus, C. mas and S. aucuparia fruit extracts, respectively. All extracts were declared non-toxic in the brine shrimp acute toxicity test. Our study highlights potential benefits of V. opulus fruit extract in diseases associated with endothelial dysfunction and impaired vasodilation.
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Moringa oleifera Seeds Improve Aging-Related Endothelial Dysfunction in Wistar Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2567198. [PMID: 31214278 PMCID: PMC6535829 DOI: 10.1155/2019/2567198] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 02/14/2019] [Indexed: 12/16/2022]
Abstract
Vascular aging is characterized by functional and structural changes of the vessel wall, including endothelial dysfunction, with decreased endothelial NO· bioavailability and elevated vasoconstrictor and inflammatory mediator production, vascular rigidity, and tone impairment. Moringa oleifera (MOI) is a little tree, and different parts of which are used in traditional medicine in tropical Africa, America, and Asia for therapeutic applications in several disorders including cardiovascular disease. The present study is aimed at assessing the effect of MOI on aging-associated alteration of the endothelial function in Wistar rats. Middle-aged Wistar rats (46-week-old males) have been fed with food containing or not 750 mg/kg/day of MOI seed powder for 4 weeks. A group of young Wistar rats (16-week-old) was used as control. Measurement of isometric contraction, western blot analysis, and immunostaining has then been performed in the aortas and mesenteric arteries to assess the endothelium function. MOI treatment improved carbachol-induced relaxation in both aortas and mesenteric arteries of middle-aged rats. In the aortas, this was associated with an increased Akt signalling and endothelial NO synthase activation and a downregulation of arginase-1. In the mesenteric arteries, the improvement of the endothelial-dependent relaxation was related to an EDHF-dependent mechanism. These results suggest a vascular protective effect of MOI seeds against the vascular dysfunction that develops during aging through different mechanisms in conductance and resistance arteries.
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