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Uribe P, Barra J, Painen K, Zambrano F, Schulz M, Moya C, Isachenko V, Isachenko E, Mallmann P, Sánchez R. FeTPPS, a Peroxynitrite Decomposition Catalyst, Ameliorates Nitrosative Stress in Human Spermatozoa. Antioxidants (Basel) 2023; 12:1272. [PMID: 37372002 DOI: 10.3390/antiox12061272] [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: 05/12/2023] [Revised: 06/01/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023] Open
Abstract
Excessive levels of reactive nitrogen species (RNS), such as peroxynitrite, promote nitrosative stress, which is an important cause of impaired sperm function. The metalloporphyrin FeTPPS is highly effective in catalyzing the decomposition of peroxynitrite, reducing its toxic effects in vivo and in vitro. FeTPPS has significant therapeutic potential in peroxynitrite-related diseases; however, its effects on human spermatozoa under nitrosative stress have not been described. This work aimed to evaluate the in vitro effect of FeTPPS against peroxynitrite-mediated nitrosative stress in human spermatozoa. For this purpose, spermatozoa from normozoospermic donors were exposed to 3-morpholinosydnonimine, a molecule that generates peroxynitrite. First, the FeTPPS-mediated peroxynitrite decomposition catalysis was analyzed. Then, its individual effect on sperm quality parameters was evaluated. Finally, the effect of FeTPPS on ATP levels, motility, mitochondrial membrane potential, thiol oxidation, viability, and DNA fragmentation was analyzed in spermatozoa under nitrosative stress conditions. The results showed that FeTPPS effectively catalyzes the decomposition of peroxynitrite without affecting sperm viability at concentrations up to 50 μmol/L. Furthermore, FeTPPS mitigates the deleterious effects of nitrosative stress on all sperm parameters analyzed. These results highlight the therapeutic potential of FeTPPS in reducing the negative impact of nitrosative stress in semen samples with high RNS levels.
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Affiliation(s)
- Pamela Uribe
- Center of Excellence in Translational Medicine-Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4810296, Chile
- Department of Internal Medicine, Faculty of Medicine, Universidad de La Frontera, Temuco 4781176, Chile
| | - Javiera Barra
- Center of Excellence in Translational Medicine-Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4810296, Chile
| | - Kevin Painen
- Center of Excellence in Translational Medicine-Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4810296, Chile
| | - Fabiola Zambrano
- Center of Excellence in Translational Medicine-Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4810296, Chile
- Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco 4781176, Chile
| | - Mabel Schulz
- Center of Excellence in Translational Medicine-Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4810296, Chile
- Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco 4781176, Chile
| | - Claudia Moya
- Center of Excellence in Translational Medicine-Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4810296, Chile
| | - Vladimir Isachenko
- Research Group in Reproductive Medicine, Department of Obstetrics and Gynecology, Cologne University, 50923 Köln, Germany
| | - Evgenia Isachenko
- Research Group in Reproductive Medicine, Department of Obstetrics and Gynecology, Cologne University, 50923 Köln, Germany
| | - Peter Mallmann
- Research Group in Reproductive Medicine, Department of Obstetrics and Gynecology, Cologne University, 50923 Köln, Germany
| | - Raúl Sánchez
- Center of Excellence in Translational Medicine-Scientific and Technological Bioresource Nucleus (CEMT-BIOREN), Faculty of Medicine, Universidad de La Frontera, Temuco 4810296, Chile
- Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco 4781176, Chile
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Lianos EA, Detsika MG. Metalloporphyrins as Tools for Deciphering the Role of Heme Oxygenase in Renal Immune Injury. Int J Mol Sci 2023; 24:6815. [PMID: 37047787 PMCID: PMC10095062 DOI: 10.3390/ijms24076815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023] Open
Abstract
Renal immune injury is a frequent cause of end-stage renal disease, and, despite the progress made in understanding underlying pathogenetic mechanisms, current treatments to preserve renal function continue to be based mainly on systemic immunosuppression. Small molecules, naturally occurring biologic agents, show considerable promise in acting as disease modifiers and may provide novel therapeutic leads. Certain naturally occurring or synthetic Metalloporphyrins (Mps) can act as disease modifiers by increasing heme oxygenase (HO) enzymatic activity and/or synthesis of the inducible HO isoform (HO-1). Depending on the metal moiety of the Mp employed, these effects may occur in tandem or can be discordant (increased HO-1 synthesis but inhibition of enzyme activity). This review discusses effects of Mps, with varying redox-active transitional metals and cyclic porphyrin cores, on mechanisms underlying pathogenesis and outcomes of renal immune injury.
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Affiliation(s)
- Elias A. Lianos
- Veterans Affairs Medical Center and Virginia Tech, Carilion School of Medicine, Salem, VA 24153, USA
| | - Maria G. Detsika
- GP Livanos and M Simou Laboratories, Evangelismos Hospital, 1st Department of Critical Care Medicine & Pulmonary Services, National and Kapodistrian University of Athens, 10675 Athens, Greece
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Folbergrová J, Ješina P, Otáhal J. Protective Effect of Sulforaphane on Oxidative Stress and Mitochondrial Dysfunction Associated with Status Epilepticus in Immature Rats. Mol Neurobiol 2023; 60:2024-2035. [PMID: 36598650 PMCID: PMC9984354 DOI: 10.1007/s12035-022-03201-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 12/26/2022] [Indexed: 01/05/2023]
Abstract
The present study aimed to elucidate the effect of sulforaphane (a natural isothiocyanate) on oxidative stress and mitochondrial dysfunction during and at selected periods following status epilepticus (SE) induced in immature 12-day-old rats by Li-pilocarpine. Dihydroethidium was employed for the detection of superoxide anions, immunoblot analyses for 3-nitrotyrosine (3-NT) and 4-hydroxynonenal (4-HNE) levels and respiratory chain complex I activity for evaluation of mitochondrial function. Sulforaphane was given i.p. in two doses (5 mg/kg each), at PD 10 and PD 11, respectively. The findings of the present study indicate that both the acute phase of SE and the early period of epileptogenesis (1 week and 3 weeks following SE induction) are associated with oxidative stress (documented by the enhanced superoxide anion production and the increased levels of 3-NT and 4-HNE) and the persisting deficiency of complex I activity. Pretreatment with sulforaphane either completely prevented or significantly reduced markers of both oxidative stress and mitochondrial dysfunction. Since sulforaphane had no direct anti-seizure effect, the findings suggest that the ability of sulforaphane to activate Nrf2 is most likely responsible for the observed protective effect. Nrf2-ARE signaling pathway can be considered a promising target for novel therapies of epilepsy, particularly when new compounds, possessing inhibitory activity against protein-protein interaction between Nrf2 and its repressor protein Keap1, with less "off-target" effects and, importantly, with an optimal permeability and bioavailability properties, become available commercially.
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Affiliation(s)
- Jaroslava Folbergrová
- Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague 4, Czech Republic.
| | - Pavel Ješina
- Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague 4, Czech Republic
| | - Jakub Otáhal
- Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague 4, Czech Republic
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Zheng QY, Lu QF, Liu J, Liu N, Huang XL, Huang F, Hu CH, Xu CL. Effect of MnTBAP on sperm ultra-rapid freezing and its proteomics study. Cryobiology 2023:S0011-2240(23)00004-4. [PMID: 36642193 DOI: 10.1016/j.cryobiol.2023.01.004] [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: 09/11/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/13/2023]
Abstract
MnTBAP is a new synthetic antioxidant that has been used for the cryopreservation of sperm. However, the exact mechanism of its cryoprotection at the molecular level is largely unknown. Therefore, in this study, normal human semen samples were selected and MnTBAP (0, 5, 10, 20, 40 μM) was added to sperm freezing medium to assess changes in kinetics parameters, apoptosis, reactive oxygen species (ROS), and DNA fragmentation index (DFI) after sperm ultra-rapid freezing. The tandem masstagging (TMT) proteomics technique was used to further investigate the changes in proteins after sperm ultra-rapid freezing. The kinetic parameters of sperm after ultra-rapid freezing and thawing were significantly reduced and apoptosis, ROS production and DFI were significantly increased. The addition of 40 μM MnTBAP improved the kinetic parameters, while it reduced apoptosis, ROS production, and DFI of sperm after ultra-rapid freezing and thawing (P < 0.05). Compared with the fresh semen, 1978 differential proteins were identified in the frozen-thawed sperm without MnTBAP and 1888 differential proteins were identified in the frozen-thawed sperm with MnTBAP (40 μM) added. The proteins affected during ultra-rapid freezing were mainly related to sperm metabolism, flagellar structure motility, apoptosis, intracellular signaling, capacitation and fertilization, while the addition of MnTBAP reduced the alterations of these proteins.
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Affiliation(s)
- Qi-Yuan Zheng
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Qing-Fang Lu
- Medical College, Guangxi University, Nanning, China
| | - Juan Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Nian Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xi-Ling Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Fang Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Chuan-Huo Hu
- College of Animal Science and Technology, Guangxi University, Nanning, China.
| | - Chang-Long Xu
- The Reproductive Medical Center, Nanning Second People's Hospital, Nanning, China.
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Manganese Porphyrin Promotes Post Cardiac Arrest Recovery in Mice and Rats. BIOLOGY 2022; 11:biology11070957. [PMID: 36101338 PMCID: PMC9312251 DOI: 10.3390/biology11070957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/11/2022] [Accepted: 06/21/2022] [Indexed: 11/17/2022]
Abstract
Introduction Cardiac arrest (CA) and resuscitation induces global cerebral ischemia and reperfusion, causing neurologic deficits or death. Manganese porphyrins, superoxide dismutase mimics, are reportedly able to effectively reduce ischemic injury in brain, kidney, and other tissues. This study evaluates the efficacy of a third generation lipophilic Mn porphyrin, MnTnBuOE-2-PyP5+, Mn(III) ortho meso-tetrakis (N-n-butoxyethylpyridinium-2-yl)porphyrin (MnBuOE, BMX-001), in both mouse and rat models of CA. Methods Forty-eight animals were subjected to 8 min of CA and resuscitated subsequently by chest compression and epinephrine infusion. Vehicle or MnBuOE was given immediately after resuscitation followed by daily subcutaneous injections. Body weight, spontaneous activity, neurologic deficits, rotarod performance, and neuronal death were assessed. Kidney tubular injury was assessed in CA mice. Data were collected by the investigators who were blinded to the treatment groups. Results Vehicle mice had a mortality of 20%, which was reduced by 50% by MnBuOE. All CA mice had body weight loss, spontaneous activity decline, neurologic deficits, and decreased rotarod performance that were significantly improved at three days post MnBuOE daily treatment. MnBuOE treatment reduced cortical neuronal death and kidney tubular injury in mice (p < 0.05) but not hippocampus neuronal death (23% MnBuOE vs. 34% vehicle group, p = 0.49). In rats, they had a better body-weight recovery and increased rotarod latency after MnBuOE treatment when compared to vehicle group (p < 0.01 vs. vehicle). MnBuOE-treated rats had a low percentage of hippocampus neuronal death (39% MnBuOE vs. 49% vehicle group, p = 0.21) and less tubular injury (p < 0.05) relative to vehicle group. Conclusions We demonstrated the ability of MnBuOE to improve post-CA survival, as well as functional outcomes in both mice and rats, which jointly account for the improvement not only of brain function but also of the overall wellbeing of the animals. While MnBuOE bears therapeutic potential for treating CA patients, the females and the animals with comorbidities must be further evaluated before advancing toward clinical trials.
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Mancuso C. The brain heme oxygenase/biliverdin reductase system as a target in drug research and development. Expert Opin Ther Targets 2022; 26:361-374. [PMID: 35285395 DOI: 10.1080/14728222.2022.2052848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The heme oxygenase/biliverdin reductase (HO/BVR) system is involved in heme metabolism. The inducible isoform of HO (HO-1) and BVR both exert cytoprotective effects by enhancing cell stress response. In this context, some xenobiotics, which target HO-1, including herbal products, behave as neuroprotectants in several experimental models of neurodegeneration. Despite this, no drug having either HO-1 or BVR as a main target is currently available. AREAS COVERED After a description of the brain HO/BVR system, the paper analyzes the main classes of drugs acting on the nervous system, with HO as second-level target, and their neuroprotective potential. Finally, the difficulties that exist for the development of drugs acting on HO/BVR and the possible ways to overcome these hurdles are examined. EXPERT OPINION Although the limited clinical evidence has restricted the translational research on the HO/BVR system, mainly because of the dual nature of its by-products, there has been growing interest in the therapeutic potential of these enzymes. Scientists should boost the translational research on the HO/BVR system which could be supported by the significant evidence provided by preclinical studies.
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Affiliation(s)
- Cesare Mancuso
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Department of Healthcare Surveillance and Bioethics, Section of Pharmacology, Università Cattolica del Sacro Cuore, Rome, Italy
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Bach1 derepression is neuroprotective in a mouse model of Parkinson's disease. Proc Natl Acad Sci U S A 2021; 118:2111643118. [PMID: 34737234 PMCID: PMC8694049 DOI: 10.1073/pnas.2111643118] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2021] [Indexed: 12/30/2022] Open
Abstract
The Keap1-Nrf2 signaling pathway is a promising therapeutic target for Parkinson’s disease (PD). Canonical Nrf2 activators targeting Keap1 thiols are known to be preventive but never effectively cure chronic neurodegeneration because of their electrophilic nature, resulting in nonspecific reactions with active cysteine residues in a variety of cellular proteins. We show that genetic and pharmacologic inhibition of the Nrf2 repressor Bach1 in a posttreatment regimen of experimental PD is neuroprotective by up-regulating Bach1-targeted pathways involving both Nrf2-dependent antioxidant response element (ARE) and non-ARE genes. Inhibition of Bach1 by a nonelectrophilic substituted benzimidazole is a promising therapeutic approach for PD. Parkinson's disease (PD) is a progressive neurodegenerative movement disorder characterized by the loss of nigrostriatal dopaminergic neurons. Mounting evidence suggests that Nrf2 is a promising target for neuroprotective interventions in PD. However, electrophilic chemical properties of the canonical Nrf2-based drugs cause irreversible alkylation of cysteine residues on cellular proteins resulting in side effects. Bach1 is a known transcriptional repressor of the Nrf2 pathway. We report that Bach1 levels are up-regulated in PD postmortem brains and preclinical models. Bach1 knockout (KO) mice were protected against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced dopaminergic neurotoxicity and associated oxidative damage and neuroinflammation. Functional genomic analysis demonstrated that the neuroprotective effects in Bach1 KO mice was due to up-regulation of Bach1-targeted pathways that are associated with both Nrf2-dependent antioxidant response element (ARE) and Nrf2-independent non-ARE genes. Using a proprietary translational technology platform, a drug library screen identified a substituted benzimidazole as a Bach1 inhibitor that was validated as a nonelectrophile. Oral administration of the Bach1 inhibitor attenuated MPTP neurotoxicity in pre- and posttreatment paradigms. Bach1 inhibitor–induced neuroprotection was associated with the up-regulation of Bach1-targeted pathways in concurrence with the results from Bach1 KO mice. Our results suggest that genetic deletion as well as pharmacologic inhibition of Bach1 by a nonelectrophilic inhibitor is a promising therapeutic approach for PD.
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Batinic-Haberle I, Tovmasyan A, Huang Z, Duan W, Du L, Siamakpour-Reihani S, Cao Z, Sheng H, Spasojevic I, Alvarez Secord A. H 2O 2-Driven Anticancer Activity of Mn Porphyrins and the Underlying Molecular Pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6653790. [PMID: 33815656 PMCID: PMC7987459 DOI: 10.1155/2021/6653790] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/12/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023]
Abstract
Mn(III) ortho-N-alkyl- and N-alkoxyalkyl porphyrins (MnPs) were initially developed as superoxide dismutase (SOD) mimics. These compounds were later shown to react with numerous reactive species (such as ONOO-, H2O2, H2S, CO3 •-, ascorbate, and GSH). Moreover, the ability of MnPs to oxidatively modify activities of numerous proteins has emerged as their major mechanism of action both in normal and in cancer cells. Among those proteins are transcription factors (NF-κB and Nrf2), mitogen-activated protein kinases, MAPKs, antiapoptotic bcl-2, and endogenous antioxidative defenses. The lead Mn porphyrins, namely, MnTE-2-PyP5+ (BMX-010, AEOL10113), MnTnBuOE-2-PyP5+ (BMX-001), and MnTnHex-2-PyP5+, were tested in numerous injuries of normal tissue and cellular and animal cancer models. The wealth of the data led to the progression of MnTnBuOE-2-PyP5+ into four Phase II clinical trials on glioma, head and neck cancer, anal cancer, and multiple brain metastases, while MnTE-2-PyP5+ is in Phase II clinical trial on atopic dermatitis and itch.
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Affiliation(s)
- Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Zhiqing Huang
- Department of Obstetrics and Gynecology, Division of Reproductive Sciences, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Weina Duan
- Departments of Anesthesiology, Neurobiology, and Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA
| | - Li Du
- Departments of Anesthesiology, Neurobiology, and Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA
| | | | - Zhipeng Cao
- Departments of Anesthesiology, Neurobiology, and Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA
| | - Huaxin Sheng
- Departments of Anesthesiology, Neurobiology, and Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA
| | - Ivan Spasojevic
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
- Pharmacokinetics/Pharmacodynamics (PK/PD) Core Laboratory, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Angeles Alvarez Secord
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
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Folbergrová J, Ješina P, Otáhal J. Treatment With Resveratrol Ameliorates Mitochondrial Dysfunction During the Acute Phase of Status Epilepticus in Immature Rats. Front Neurosci 2021; 15:634378. [PMID: 33746702 PMCID: PMC7973046 DOI: 10.3389/fnins.2021.634378] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 02/11/2021] [Indexed: 12/29/2022] Open
Abstract
The aim of the present study was to elucidate the effect of resveratrol (natural polyphenol) on seizure activity, production of ROS, brain damage and mitochondrial function in the early phase of status epilepticus (SE), induced in immature 12 day-old rats by substances of a different mechanism of action (Li-pilocarpine, DL-homocysteic acid, 4-amino pyridine, and kainate). Seizure activity, production of superoxide anion, brain damage and mitochondrial function were assessed by EEG recordings, hydroethidium method, FluoroJadeB staining and Complex I activity measurement. A marked decrease of complex I activity associated with the acute phase of SE in immature brain was significantly attenuated by resveratrol, given i.p. in two or three doses (25 mg/kg each), 30 min before, 30 or 30 and 60 min after the induction of SE. Increased O2.– production was completely normalized, brain damage partially attenuated. Since resveratrol did not influence seizure activity itself (latency, intensity, frequency), the mechanism of protection is likely due to its antioxidative properties. The findings have a clinical relevance, suggesting that clinically available substances with antioxidant properties might provide a high benefit as an add-on therapy during the acute phase of SE, influencing also mechanisms involved in the development of epilepsy.
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Affiliation(s)
| | - Pavel Ješina
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
| | - Jakub Otáhal
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
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Uribe P, Cárcamo C, Navarro E, Sepúlveda J, Zambrano F, Schulz M, Sánchez R. Protective effect of the superoxide dismutase mimetic MnTBAP during sperm vitrification process. Andrologia 2020; 52:e13665. [PMID: 32539179 DOI: 10.1111/and.13665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/21/2020] [Accepted: 05/07/2020] [Indexed: 12/31/2022] Open
Abstract
Sperm cryopreservation is widely used in assisted reproduction and male infertility therapy; however, it induces oxidative stress affecting sperm quality. This work evaluated the effect of the antioxidant MnTBAP during vitrification steps in human spermatozoa. First, the effect of MnTBAP on viability and ROS production was evaluated. Then, the spermatozoa were vitrified in straws with the vitrification, warming and post-warming incubation media separately supplemented with MnTBAP. An untreated control was included. The sperm viability, ROS production, total and progressive motility were evaluated. The results showed that the direct exposure of spermatozoa to MnTBAP significantly decreases the ROS levels in comparison with the untreated control without affecting the viability. The supplementation of the vitrification medium with MnTBAP did not affect the parameters analysed. However, the supplementation of the warming and incubation post-warming media resulted in a decrease in ROS production and maintained viability and motility for 4 hr after warming with concentrations up to 100 μM of MnTBAP. Higher concentrations of MnTBAP caused a decrease in total motility. In conclusion, the use of MnTBAP during the warming or post-warming incubation media has beneficial effect decreasing ROS levels and maintaining the viability and motility during the vitrification procedure.
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Affiliation(s)
- Pamela Uribe
- Center of Excellence in Translational Medicine - Scientific and Technological Bioresource Nucleus (CEMT - BIOREN), Universidad de La Frontera, Temuco, Chile.,Department of Internal Medicine, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Constanza Cárcamo
- Center of Excellence in Translational Medicine - Scientific and Technological Bioresource Nucleus (CEMT - BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Eliana Navarro
- Center of Excellence in Translational Medicine - Scientific and Technological Bioresource Nucleus (CEMT - BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Josefa Sepúlveda
- Center of Excellence in Translational Medicine - Scientific and Technological Bioresource Nucleus (CEMT - BIOREN), Universidad de La Frontera, Temuco, Chile
| | - Fabiola Zambrano
- Center of Excellence in Translational Medicine - Scientific and Technological Bioresource Nucleus (CEMT - BIOREN), Universidad de La Frontera, Temuco, Chile.,Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Mabel Schulz
- Center of Excellence in Translational Medicine - Scientific and Technological Bioresource Nucleus (CEMT - BIOREN), Universidad de La Frontera, Temuco, Chile.,Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
| | - Raúl Sánchez
- Center of Excellence in Translational Medicine - Scientific and Technological Bioresource Nucleus (CEMT - BIOREN), Universidad de La Frontera, Temuco, Chile.,Department of Preclinical Sciences, Faculty of Medicine, Universidad de La Frontera, Temuco, Chile
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Li L, Tovmasyan A, Sheng H, Xu B, Sampaio RS, Reboucas JS, Warner DS, Batinic-Haberle I, Spasojevic I. Fe Porphyrin-Based SOD Mimic and Redox-Active Compound, (OH)FeTnHex-2-PyP 4+, in a Rodent Ischemic Stroke (MCAO) Model: Efficacy and Pharmacokinetics as Compared to Its Mn Analogue, (H 2O)MnTnHex-2-PyP 5+. Antioxidants (Basel) 2020; 9:antiox9060467. [PMID: 32492872 PMCID: PMC7346179 DOI: 10.3390/antiox9060467] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/22/2020] [Accepted: 05/22/2020] [Indexed: 01/01/2023] Open
Abstract
Mn(III) meso-tetrakis(N-n-hexylpyridinium-2-yl)porphyrin, (H2O)MnTnHex-2-PyP5+ (MnHex) carrying long hexyl chains, is a lipophilic mimic of superoxide dismutase (SOD) and a redox-active drug candidate. MnHex crosses the blood–brain barrier, and improved neurologic outcome and decreased infarct size and inflammation in a rat middle cerebral artery occlusion (MCAO) ischemic stroke model. Yet, the dose and the therapeutic efficacy of Mn porphyrin were limited by an adverse effect of arterial hypotension. An equally lipophilic Fe analog, (OH)FeTnHex-2-PyP4+ (FeHex), is as redox-active and potent SOD mimic in vitro. With different coordination geometry of the metal site, FeHex has one hydroxo (OH) ligand (instead of water) bound to the Fe center in the axial position. It has ~2 orders of magnitude higher efficacy than MnHex in an SOD-deficient E. coli model of oxidative stress. In vivo, it does not cause arterial hypotension and is less toxic to mice. We thus evaluated FeHex versus MnHex in a rodent MCAO model. We first performed short- and long-term pharmacokinetics (PK) of both porphyrins in the plasma, brain, and liver of rats and mice. Given that damage to the brain during stroke occurs very rapidly, fast delivery of a sufficient dose of drug is important. Therefore, we aimed to demonstrate if, and how fast after reperfusion, Fe porphyrin reaches the brain relative to the Mn analog. A markedly different plasma half-life was found with FeHex (~23 h) than with MnHex (~1.4 h), which resulted in a more than 2-fold higher plasma exposure (AUC) in a 7-day twice-daily treatment of rats. The increased plasma half-life is explained by the much lower liver retention of FeHex than typically found in Mn analogs. In the brain, a 3-day mouse PK study showed similar levels of MnHex and FeHex. The same result was obtained in a 7-day rat PK study, despite the higher plasma exposure of FeHex. Importantly, in a short-term PK study with treatment starting 2 h post MCAO, both Fe- and Mn- analogs distributed at a higher level to the injured brain hemisphere, with a more pronounced effect observed with FeHex. While a 3-day mouse MCAO study suggested the efficacy of Fe porphyrin, in a 7-day rat MCAO study, Mn-, but not Fe porphyrin, was efficacious. The observed lack of FeHex efficacy was discussed in terms of significant differences in the chemistry of Fe vs. the Mn center of metalloporphyrin; relative to MnHex, FeHex has the propensity for axial coordination, which in vivo would preclude the reactivity of the Fe center towards small reactive species.
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Affiliation(s)
- Litao Li
- Multidisciplinary Neuroprotection Laboratories, Departments of Anesthesiology, Biomedical Engineering, Neurobiology, and Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA; (L.L.); (H.S.); (B.X.); (D.S.W.)
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA; (A.T.); (I.B.-H.)
| | - Huaxin Sheng
- Multidisciplinary Neuroprotection Laboratories, Departments of Anesthesiology, Biomedical Engineering, Neurobiology, and Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA; (L.L.); (H.S.); (B.X.); (D.S.W.)
| | - Bin Xu
- Multidisciplinary Neuroprotection Laboratories, Departments of Anesthesiology, Biomedical Engineering, Neurobiology, and Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA; (L.L.); (H.S.); (B.X.); (D.S.W.)
| | - Romulo S. Sampaio
- Departamento de Química, CCEN, Universidade Federal da Paraíba, João Pessoa, PB 58051-900, Brazil; (R.S.S.); (J.S.R.)
| | - Julio S. Reboucas
- Departamento de Química, CCEN, Universidade Federal da Paraíba, João Pessoa, PB 58051-900, Brazil; (R.S.S.); (J.S.R.)
| | - David S. Warner
- Multidisciplinary Neuroprotection Laboratories, Departments of Anesthesiology, Biomedical Engineering, Neurobiology, and Neurosurgery, Duke University School of Medicine, Durham, NC 27710, USA; (L.L.); (H.S.); (B.X.); (D.S.W.)
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA; (A.T.); (I.B.-H.)
| | - Ivan Spasojevic
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
- PK/PD Core Laboratory, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
- Correspondence: ; Tel.: +919-684-8311
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Li F, Bahnson EM, Wilder J, Siletzky R, Hagaman J, Nickekeit V, Hiller S, Ayesha A, Feng L, Levine JS, Takahashi N, Maeda-Smithies N. Oral high dose vitamin B12 decreases renal superoxide and post-ischemia/reperfusion injury in mice. Redox Biol 2020; 32:101504. [PMID: 32182573 PMCID: PMC7078436 DOI: 10.1016/j.redox.2020.101504] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/27/2020] [Accepted: 03/09/2020] [Indexed: 01/25/2023] Open
Abstract
Renal ischemia/reperfusion injury (IRI) is a leading cause of acute kidney injury (AKI), a potentially fatal syndrome characterized by a rapid decline in kidney function. Excess production of superoxide contributes to the injury. We hypothesized that oral administration of a high dose of vitamin B12 (B12 - cyanocobalamin), which possesses a superoxide scavenging function, would protect kidneys against IRI and provide a safe means of treatment. Following unilateral renal IR surgery, C57BL/6J wild type (WT) mice were administered B12 via drinking water at a dose of 50 mg/L. After 5 days of the treatment, plasma B12 levels increased by 1.2-1.5x, and kidney B12 levels increased by 7-8x. IRI mice treated with B12 showed near normal renal function and morphology. Further, IRI-induced changes in RNA and protein markers of inflammation, fibrosis, apoptosis, and DNA damage response (DDR) were significantly attenuated by at least 50% compared to those in untreated mice. Moreover, the presence of B12 at 0.3 μM in the culture medium of mouse proximal tubular cells subjected to 3 hr of hypoxia followed by 1 hr of reperfusion in vitro showed similar protective effects, including increased cell viability and decreased reactive oxygen species (ROS) level. We conclude that a high dose of B12 protects against perfusion injury both in vivo and in vitro without observable adverse effects in mice and suggest that B12 merits evaluation as a treatment for I/R-mediated AKI in humans.
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Affiliation(s)
- Feng Li
- Dept of Pathology and Laboratory Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA.
| | - Edward M Bahnson
- Department of Surgery, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Jennifer Wilder
- Dept of Pathology and Laboratory Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Robin Siletzky
- Department of Surgery, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - John Hagaman
- Dept of Pathology and Laboratory Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Volker Nickekeit
- Dept of Pathology and Laboratory Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA; Division of Nephropathy, School of Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Sylvia Hiller
- Dept of Pathology and Laboratory Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Azraa Ayesha
- Dept of Pathology and Laboratory Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Lanfei Feng
- Section of Nephrology, Department of Medicine, University of Illinois at Chicago and Jesse Brown Veterans Affairs Medical Center, Chicago, IL, 60612, USA
| | - Jerrold S Levine
- Section of Nephrology, Department of Medicine, University of Illinois at Chicago and Jesse Brown Veterans Affairs Medical Center, Chicago, IL, 60612, USA
| | - Nobuyuki Takahashi
- Dept of Pathology and Laboratory Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA; Division of Clinical Pharmacology and Therapeutics, Tohoku University Graduate School, Sendai, Japan
| | - Nobuyo Maeda-Smithies
- Dept of Pathology and Laboratory Medicine, The University of North Carolina, Chapel Hill, NC, 27599, USA
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13
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Zhang P, Ma L, Yang Z, Li H, Gao Z. Study on the detoxification mechanisms to 5,10,15,20-tetrakis (4-sulfonatophenyl) porphyrinato iron(III) chloride (FeTPPS), an efficient pro-oxidant of heme water-soluble analogue. J Inorg Biochem 2018; 189:40-52. [DOI: 10.1016/j.jinorgbio.2018.08.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 08/19/2018] [Accepted: 08/30/2018] [Indexed: 11/30/2022]
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Batinic-Haberle I, Tovmasyan A, Spasojevic I. Mn Porphyrin-Based Redox-Active Drugs: Differential Effects as Cancer Therapeutics and Protectors of Normal Tissue Against Oxidative Injury. Antioxid Redox Signal 2018; 29:1691-1724. [PMID: 29926755 PMCID: PMC6207162 DOI: 10.1089/ars.2017.7453] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
SIGNIFICANCE After approximatelty three decades of research, two Mn(III) porphyrins (MnPs), MnTE-2-PyP5+ (BMX-010, AEOL10113) and MnTnBuOE-2-PyP5+ (BMX-001), have progressed to five clinical trials. In parallel, another similarly potent metal-based superoxide dismutase (SOD) mimic-Mn(II)pentaaza macrocycle, GC4419-has been tested in clinical trial on application, identical to that of MnTnBuOE-2-PyP5+-radioprotection of normal tissue in head and neck cancer patients. This clearly indicates that Mn complexes that target cellular redox environment have reached sufficient maturity for clinical applications. Recent Advances: While originally developed as SOD mimics, MnPs undergo intricate interactions with numerous redox-sensitive pathways, such as those involving nuclear factor κB (NF-κB) and nuclear factor E2-related factor 2 (Nrf2), thereby impacting cellular transcriptional activity. An increasing amount of data support the notion that MnP/H2O2/glutathione (GSH)-driven catalysis of S-glutathionylation of protein cysteine, associated with modification of protein function, is a major action of MnPs on molecular level. CRITICAL ISSUES Differential effects of MnPs on normal versus tumor cells/tissues, which support their translation into clinic, arise from differences in their accumulation and redox environment of such tissues. This in turn results in different yields of MnP-driven modifications of proteins. Thus far, direct evidence for such modification of NF-κB, mitogen-activated protein kinases (MAPK), phosphatases, Nrf2, and endogenous antioxidative defenses was provided in tumor, while indirect evidence shows the modification of NF-κB and Nrf2 translational activities by MnPs in normal tissue. FUTURE DIRECTIONS Studies that simultaneously explore differential effects in same animal are lacking, while they are essential for understanding of extremely intricate interactions of metal-based drugs with complex cellular networks of normal and cancer cells/tissues.
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Affiliation(s)
- Ines Batinic-Haberle
- 1 Department of Radiation Oncology, Duke University School of Medicine , Durham, North Carolina
| | - Artak Tovmasyan
- 1 Department of Radiation Oncology, Duke University School of Medicine , Durham, North Carolina
| | - Ivan Spasojevic
- 2 Department of Medicine, Duke University School of Medicine , Durham, North Carolina.,3 PK/PD Core Laboratory, Pharmaceutical Research Shared Resource, Duke Cancer Institute , Durham, North Carolina
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Tang Q, Wu JQ, Li HY, Feng YF, Zhang Z, Liang YN. Dinuclear Cu(II) complexes based on p
-xylylene-bridged bis(1,4,7-triazacyclononane) ligands: Synthesis, characterization, DNA cleavage abilities and evaluation of superoxide dismutase- and catalase-like activities. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Qi Tang
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Ji-Qing Wu
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Hong-Yan Li
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Yan-Fang Feng
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Zhong Zhang
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
| | - Yu-Ning Liang
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China); School of Chemistry and Pharmacy of Guangxi Normal University; Guilin People's Republic of China
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16
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Cline JM, Dugan G, Bourland JD, Perry DL, Stitzel JD, Weaver AA, Jiang C, Tovmasyan A, Owzar K, Spasojevic I, Batinic-Haberle I, Vujaskovic Z. Post-Irradiation Treatment with a Superoxide Dismutase Mimic, MnTnHex-2-PyP 5+, Mitigates Radiation Injury in the Lungs of Non-Human Primates after Whole-Thorax Exposure to Ionizing Radiation. Antioxidants (Basel) 2018. [PMID: 29518913 PMCID: PMC5874526 DOI: 10.3390/antiox7030040] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Radiation injury to the lung is the result of acute and chronic free radical formation, and there are currently few effective means of mitigating such injury. Studies in rodents indicate that superoxide dismutase mimetics may be effective in this regard; however, studies in humans or large animals are lacking. We hypothesized that post-exposure treatment with the lipophilic mitochondrial superoxide dismutase mimetic, MnTnHex-2-PyP5+ (hexyl), would reduce radiation-induced pneumonitis and fibrosis in the lungs of nonhuman primates. Rhesus monkeys (Macaca mulatta) received 10 Gy whole thorax irradiation, 10 Gy + hexyl treatment, sham irradiation, or sham irradiation + hexyl. Hexyl was given twice daily, subcutaneously, at 0.05 mg/kg, for 2 months. Animals were monitored daily, and respiratory rates, pulse oximetry, hematology and serum chemistry panels were performed weekly. Computed tomography scans were performed at 0, 2, and 4 months after irradiation. Supportive fluid therapy, corticosteroids, analgesics, and antibiotics were given as needed. All animals were humanely euthanized 4.5 months after irradiation, and pathologic assessments were made. Multifocal, progressive lung lesions were seen at 2 and 4 months in both irradiated groups. Hexyl treatment delayed the onset of radiation-induced lung lesions, reduced elevations of respiratory rate, and reduced pathologic increases in lung weight. No adverse effects of hexyl treatment were found. These results demonstrate (1) development of a nonhuman primate model of radiation-induced lung injury, (2) a significant mitigating effect of hexyl treatment on lung pathology in this model, and (3) no evidence for toxicity of hexyl at the dose studied.
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Affiliation(s)
- John Mark Cline
- Department of Pathology, Section on Comparative Medicine, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157-1040, USA.
| | - Greg Dugan
- Department of Pathology, Section on Comparative Medicine, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157-1040, USA.
| | - John Daniel Bourland
- Department of Radiation Oncology, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157-1040, USA.
| | - Donna L Perry
- Department of Pathology, Section on Comparative Medicine, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157-1040, USA.
- Integrated Research Facility, Division of Clinical Research, National Institute of Allergy and Infectious Disease, National Institutes of Health, Frederick, MD 21702, USA.
| | - Joel D Stitzel
- Department of Biomedical Engineering, Wake Forest University School of Medicine, Biotech Place, 575 N. Patterson Ave., Winston-Salem, NC 21701, USA.
| | - Ashley A Weaver
- Department of Biomedical Engineering, Wake Forest University School of Medicine, Biotech Place, 575 N. Patterson Ave., Winston-Salem, NC 21701, USA.
| | - Chen Jiang
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC 27708, USA.
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC 27708, USA.
| | - Kouros Owzar
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC 27708, USA.
| | - Ivan Spasojevic
- Department of Medicine Duke University Medical Center, Durham, NC 27708, USA.
- Duke Cancer Institute, Pharmaceutical Research Shared Resource, PK/PD Core Laboratory, Duke University Medical Center, Durham, NC 27708, USA.
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC 27708, USA.
| | - Zeljko Vujaskovic
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC 27708, USA.
- Department of Radiation Oncology, University of Maryland School of Medicine, 655 W. Baltimore Street, Baltimore, MD 21201, USA.
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17
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Hua J, Zang L, Zhao H, Liu T, Fan M, Chen T, Cao Z, Tian Y, Zhang Z. Studying the origin of fluorescence emissions of neodymium porphyrin based on the analysis of energy level structure. J PORPHYR PHTHALOCYA 2017. [DOI: 10.1142/s1088424617500651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This paper studies the origin of fluorescence emissions of metalloporphyrins. The absorption spectrum of neodymium-coordinated hematoporphyrin monomethyl ether (Nd-HMME) was found to have four Q bands, which is different from the accepted knowledge (two Q bands). The absorbance of Nd-HMME was comparable to the corresponding absorbance of HMME at wavelengths of 538 nm and 572 nm, but the absorbance of Nd-HMME at wavelengths of 502 nm and 622 nm was approximately 1/30 of that at 572 nm. The doping of Nd[Formula: see text] enhanced the symmetry of HMME, and led to changes in energy level properties. Moreover, Nd-HMME still exhibited two fluorescence peaks at 624 nm and 686 nm, similar to HMME, which can be explained by the observation of a weak absorption peak of Nd-HMME at 622 nm.
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Affiliation(s)
- Jianyu Hua
- Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China
| | - Lixin Zang
- Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China
| | - Huimin Zhao
- School of Physics and Electronics, Shandong Normal University, Ji’nan 250014, China
| | - Ting Liu
- Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China
| | - Ming Fan
- Shenzhen Micromed Tech. Co., Ltd., Shenzhen, 518109, China
| | - Tong Chen
- Shenzhen Micromed Tech. Co., Ltd., Shenzhen, 518109, China
| | - Zhengyu Cao
- Division of Cardiology, The First Affiliated Hospital, Harbin Medical University, Harbin 150001, China
| | - Ye Tian
- Division of Cardiology, The First Affiliated Hospital, Harbin Medical University, Harbin 150001, China
| | - Zhiguo Zhang
- Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China
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18
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Cerqueira AFR, Moura NMM, Serra VV, Faustino MAF, Tomé AC, Cavaleiro JAS, Neves MGPMS. β-Formyl- and β-Vinylporphyrins: Magic Building Blocks for Novel Porphyrin Derivatives. Molecules 2017; 22:molecules22081269. [PMID: 28758915 PMCID: PMC6152163 DOI: 10.3390/molecules22081269] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 07/21/2017] [Accepted: 07/23/2017] [Indexed: 02/01/2023] Open
Abstract
Porphyrins bearing formyl or vinyl groups have been explored as starting materials to prepare new compounds with adequate features for different applications. In this review it is discussed mainly synthetic strategies based on the reaction of meso-tetraarylporphyrins bearing those groups at β-pyrrolic positions. The use of some of the obtained porphyrin derivatives for further transformations, namely via pericyclic reactions, is also highlighted.
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Affiliation(s)
- Ana F R Cerqueira
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Nuno M M Moura
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Vanda Vaz Serra
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
| | - M Amparo F Faustino
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Augusto C Tomé
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - José A S Cavaleiro
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Graça P M S Neves
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
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19
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Chen D, Li K, Guan X, Cheng G, Yang C, Che CM. Luminescent Iridium(III) Complexes Supported by a Tetradentate Trianionic Ligand Scaffold with Mixed O, N, and C Donor Atoms: Synthesis, Structures, Photophysical Properties, and Material Applications. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Daqing Chen
- State
Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional
Materials, HKU-CAS Joint Laboratory on New Materials, and Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Kai Li
- State
Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional
Materials, HKU-CAS Joint Laboratory on New Materials, and Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Xiangguo Guan
- State
Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional
Materials, HKU-CAS Joint Laboratory on New Materials, and Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Gang Cheng
- State
Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional
Materials, HKU-CAS Joint Laboratory on New Materials, and Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Chen Yang
- State
Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional
Materials, HKU-CAS Joint Laboratory on New Materials, and Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
| | - Chi-Ming Che
- State
Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional
Materials, HKU-CAS Joint Laboratory on New Materials, and Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053, People’s Republic of China
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20
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Frazier HN, Maimaiti S, Anderson KL, Brewer LD, Gant JC, Porter NM, Thibault O. Calcium's role as nuanced modulator of cellular physiology in the brain. Biochem Biophys Res Commun 2016; 483:981-987. [PMID: 27553276 DOI: 10.1016/j.bbrc.2016.08.105] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 08/04/2016] [Accepted: 08/18/2016] [Indexed: 12/22/2022]
Abstract
Neuroscientists studying normal brain aging, spinal cord injury, Alzheimer's disease (AD) and other neurodegenerative diseases have focused considerable effort on carefully characterizing intracellular perturbations in calcium dynamics or levels. At the cellular level, calcium is known for controlling life and death and orchestrating most events in between. For many years, intracellular calcium has been recognized as an essential ion associated with nearly all cellular functions from cell growth to degeneration. Often the emphasis is on the negative impact of calcium dysregulation and the typical worse-case-scenario leading inevitably to cell death. However, even high amplitude calcium transients, when executed acutely, can alter neuronal communication and synaptic strength in positive ways, without necessarily killing neurons. Here, we focus on the evidence that calcium has a subtle and distinctive role in shaping and controlling synaptic events that underpin neuronal communication and that these subtle changes in aging or AD may contribute to cognitive decline. We emphasize that calcium imaging in dendritic components is ultimately necessary to directly test for the presence of age- or disease-associated alterations during periods of synaptic activation.
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Affiliation(s)
- Hilaree N Frazier
- UKMC, MS-313, Department of Pharmacology and Nutritional Sciences, University of Kentucky Medical Center, 800 Rose Street, Lexington, KY 40536, USA
| | - Shaniya Maimaiti
- UKMC, MS-313, Department of Pharmacology and Nutritional Sciences, University of Kentucky Medical Center, 800 Rose Street, Lexington, KY 40536, USA
| | - Katie L Anderson
- UKMC, MS-313, Department of Pharmacology and Nutritional Sciences, University of Kentucky Medical Center, 800 Rose Street, Lexington, KY 40536, USA
| | - Lawrence D Brewer
- UKMC, MS-313, Department of Pharmacology and Nutritional Sciences, University of Kentucky Medical Center, 800 Rose Street, Lexington, KY 40536, USA
| | - John C Gant
- UKMC, MS-313, Department of Pharmacology and Nutritional Sciences, University of Kentucky Medical Center, 800 Rose Street, Lexington, KY 40536, USA
| | - Nada M Porter
- UKMC, MS-313, Department of Pharmacology and Nutritional Sciences, University of Kentucky Medical Center, 800 Rose Street, Lexington, KY 40536, USA
| | - Olivier Thibault
- UKMC, MS-313, Department of Pharmacology and Nutritional Sciences, University of Kentucky Medical Center, 800 Rose Street, Lexington, KY 40536, USA.
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Affiliation(s)
- Ines Batinic-Haberle
- 1 Department of Radiation Oncology, Duke University School of Medicine , Durham, North Carolina
| | - Artak Tovmasyan
- 1 Department of Radiation Oncology, Duke University School of Medicine , Durham, North Carolina
| | - Ivan Spasojevic
- 2 Department of Medicine, Duke University School of Medicine , Durham, North Carolina.,3 Department of PK/PD Core Laboratory, Pharmaceutical Research Shared Resource, Duke Cancer Institute, Duke University School of Medicine , Durham, North Carolina
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22
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Mn Porphyrin-Based Redox-Active Therapeutics. OXIDATIVE STRESS IN APPLIED BASIC RESEARCH AND CLINICAL PRACTICE 2016. [DOI: 10.1007/978-3-319-30705-3_8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Proietti Silvestri I, Cellesi F. AGET ATRP of Poly[poly(ethylene glycol) methyl ether methacrylate] Catalyzed by Hydrophobic Iron(III)-Porphyrins. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500277] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- I. Proietti Silvestri
- Fondazione CEN - European Centre for Nanomedicine; Piazza Leonardo da Vinci 32 20133 Milan Italy
- Dipartimento di Chimica; Materiali ed Ingegneria Chimica “G. Natta,” Politecnico di Milano; Via Mancinelli 7 20131 Milan Italy
| | - F. Cellesi
- Fondazione CEN - European Centre for Nanomedicine; Piazza Leonardo da Vinci 32 20133 Milan Italy
- Dipartimento di Chimica; Materiali ed Ingegneria Chimica “G. Natta,” Politecnico di Milano; Via Mancinelli 7 20131 Milan Italy
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Berryman VEJ, Boyd RJ, Johnson ER. Balancing Exchange Mixing in Density-Functional Approximations for Iron Porphyrin. J Chem Theory Comput 2015; 11:3022-8. [DOI: 10.1021/acs.jctc.5b00203] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Victoria E. J. Berryman
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia Canada, B3H
4R2
| | - Russell J. Boyd
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia Canada, B3H
4R2
| | - Erin R. Johnson
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia Canada, B3H
4R2
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Slosky LM, Vanderah TW. Therapeutic potential of peroxynitrite decomposition catalysts: a patent review. Expert Opin Ther Pat 2015; 25:443-66. [PMID: 25576197 DOI: 10.1517/13543776.2014.1000862] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Peroxynitrite is a cytotoxic oxidant species implicated in a host of pathologies, including inflammatory and neurodegenerative diseases, cancer, radiation injury and chronic pain. With the recognition of the role of peroxynitrite in disease, numerous experimental and therapeutic tools have arisen to probe peroxyntirite's pathophysiological contribution and attenuate its oxidative damage. Peroxynitrite decomposition catalysts (PNDCs) are redox-active compounds that detoxify peroxynitrite by catalyzing its isomerization or reduction to nitrate or nitrite. AREAS COVERED This review discusses recent research articles and patents published 1995 - 2014 on the development and therapeutic use of PNDCs. Iron and manganese metalloporphyrin PNDCs attenuate the toxic effects of peroxynitrite and are currently being developed for clinical applications. Additionally, some Mn porphyrin-based PNDCs have optimized pharmaceutical properties such that they exhibit greater peroxynitrite selectivity. Other classes of PNDC agents, including bis(hydroxyphenyl)dipyrromethenes and metallocorroles, have demonstrated preclinical efficacy, oral availability and reduced toxicity risk. EXPERT OPINION Interest in the drug-like properties of peroxynitrite-neutralizing agents has grown with the realization that PNDCs will be powerful tools in the treatment of disease. The design of compounds with enhanced oral availability and peroxynitrite selectivity is a critical step toward the availability of safe, effective and selective redox modulators for the treatment of peroxynitrite-associated pathologies.
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Affiliation(s)
- Lauren M Slosky
- University of Arizona, Department of Pharmacology , Life Science North Rm 621, 1501 North Campbell Ave., Tucson, AZ 85721 , USA
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26
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Wu H, Zhou S, Kong L, Chen J, Feng W, Cai J, Miao L, Tan Y. Metallothionein deletion exacerbates intermittent hypoxia-induced renal injury in mice. Toxicol Lett 2015; 232:340-8. [DOI: 10.1016/j.toxlet.2014.11.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 10/16/2014] [Accepted: 11/14/2014] [Indexed: 11/24/2022]
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Cheng KY, Guo F, Lu JQ, Cao YZ, Wang TC, Yang Q, Xia Q. MnTM-4-PyP modulates endogenous antioxidant responses and protects primary cortical neurons against oxidative stress. CNS Neurosci Ther 2014; 21:435-45. [PMID: 25545542 DOI: 10.1111/cns.12373] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 11/28/2014] [Accepted: 11/28/2014] [Indexed: 12/13/2022] Open
Abstract
AIMS Oxidative stress is a direct cause of injury in various neural diseases. Manganese porphyrins (MnPs), a large category of superoxide dismutase (SOD) mimics, shown universally to have effects in numerous neural disease models in vivo. Given their complex intracellular redox activities, detailed mechanisms underlying the biomedical efficacies are not fully elucidated. This study sought to investigate the regulation of endogenous antioxidant systems by a MnP (MnTM-4-PyP) and its role in the protection against neural oxidative stress. METHODS Primary cortical neurons were treated with MnTM-4-PyP prior to hydrogen peroxide-induced oxidative stress. RESULTS MnTM-4-PyP increased cell viability, reduced intracellular level of reactive oxygen species, inhibited mitochondrial apoptotic pathway, and ameliorated endoplasmic reticulum function. The protein levels and activities of endogenous SODs were elevated, but not those of catalase. SOD2 transcription was promoted in a transcription factor-specific manner. Additionally, we found FOXO3A and Sirt3 levels also increased. These effects were not observed with MnTM-4-PyP alone. CONCLUSION Induction of various levels of endogenous antioxidant responses by MnTM-4-PyP has indispensable functions in its protection for cortical neurons against hydrogen peroxide-induced oxidative stress.
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Affiliation(s)
- Kuo-Yuan Cheng
- Department of Chemical Biology, State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
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Celic T, Španjol J, Bobinac M, Tovmasyan A, Vukelic I, Reboucas JS, Batinic-Haberle I, Bobinac D. Mn porphyrin-based SOD mimic, MnTnHex-2-PyP(5+), and non-SOD mimic, MnTBAP(3-), suppressed rat spinal cord ischemia/reperfusion injury via NF-κB pathways. Free Radic Res 2014; 48:1426-42. [PMID: 25185063 DOI: 10.3109/10715762.2014.960865] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Herein we have demonstrated that both superoxide dismutase (SOD) mimic, cationic Mn(III) meso-tetrakis(N-n-hexylpyridinium-2-yl)porphyrin (MnTnHex-2-PyP(5+)), and non-SOD mimic, anionic Mn(III) meso-tetrakis(4-carboxylatophenyl)porphyrin (MnTBAP(3-)), protect against oxidative stress caused by spinal cord ischemia/reperfusion via suppression of nuclear factor kappa B (NF-κB) pro-inflammatory pathways. Earlier reports showed that Mn(III) N-alkylpyridylporphyrins were able to prevent the DNA binding of NF-κB in an aqueous system, whereas MnTBAP(3-) was not. Here, for the first time, in a complex in vivo system-animal model of spinal cord injury-a similar impact of MnTBAP(3-), at a dose identical to that of MnTnHex-2-PyP(5+), was demonstrated in NF-κB downregulation. Rats were treated subcutaneously at 1.5 mg/kg starting at 30 min before ischemia/reperfusion, and then every 12 h afterward for either 48 h or 7 days. The anti-inflammatory effects of both Mn porphyrins (MnPs) were demonstrated in the spinal cord tissue at both 48 h and 7 days. The downregulation of NF-κB, a major pro-inflammatory signaling protein regulating astrocyte activation, was detected and found to correlate well with the suppression of astrogliosis (as glial fibrillary acidic protein) by both MnPs. The markers of oxidative stress, lipid peroxidation and protein carbonyl formation, were significantly reduced by MnPs. The favorable impact of both MnPs on motor neurons (Tarlov score and inclined plane test) was assessed. No major changes in glutathione peroxidase- and SOD-like activities were demonstrated, which implies that none of the MnPs acted as SOD mimic. Increasing amount of data on the reactivity of MnTBAP(3-) with reactive nitrogen species (RNS) (.NO/HNO/ONOO(-)) suggests that RNS/MnTBAP(3-)-driven modification of NF-κB protein cysteines may be involved in its therapeutic effects. This differs from the therapeutic efficacy of MnTnHex-2-PyP(5+) which presumably occurs via reactive oxygen species and relates to NF-κB thiol oxidation; the role of RNS cannot be excluded.
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Affiliation(s)
- T Celic
- Department of Anatomy, Faculty of Medicine, University of Rijeka , Rijeka , Croatia
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Berryman VEJ, Baker MG, Boyd RJ. Effect of Amino Acid Ligands on the Structure of Iron Porphyrins and Their Ability to Bind Oxygen. J Phys Chem A 2014; 118:4565-74. [DOI: 10.1021/jp502541y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Matthew G. Baker
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Russell J. Boyd
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
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Tovmasyan A, Reboucas JS, Benov L. Simple biological systems for assessing the activity of superoxide dismutase mimics. Antioxid Redox Signal 2014; 20:2416-36. [PMID: 23964890 PMCID: PMC4005499 DOI: 10.1089/ars.2013.5576] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
SIGNIFICANCE Half a century of research provided unambiguous proof that superoxide and species derived from it-reactive oxygen species (ROS)-play a central role in many diseases and degenerative processes. This stimulated the search for pharmaceutical agents that are capable of preventing oxidative damage, and methods of assessing their therapeutic potential. RECENT ADVANCES The limitations of superoxide dismutase (SOD) as a therapeutic tool directed attention to small molecules, SOD mimics, that are capable of catalytically scavenging superoxide. Several groups of compounds, based on either metal complexes, including metalloporphyrins, metallocorroles, Mn(II) cyclic polyamines, and Mn(III) salen derivatives, or non-metal based compounds, such as fullerenes, nitrones, and nitroxides, have been developed and studied in vitro and in vivo. Very few entered clinical trials. CRITICAL ISSUES AND FUTURE DIRECTIONS Development of SOD mimics requires in-depth understanding of their mechanisms of biological action. Elucidation of both molecular features, essential for efficient ROS-scavenging in vivo, and factors limiting the potential side effects requires biologically relevant and, at the same time, relatively simple testing systems. This review discuses the advantages and limitations of genetically engineered SOD-deficient unicellular organisms, Escherichia coli and Saccharomyces cerevisiae as tools for investigating the efficacy and mechanisms of biological actions of SOD mimics. These simple systems allow the scrutiny of the minimal requirements for a functional SOD mimic: the association of a high catalytic activity for superoxide dismutation, low toxicity, and an efficient cellular uptake/biodistribution.
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Affiliation(s)
- Artak Tovmasyan
- 1 Department of Radiation Oncology, Duke University Medical Center , Durham, North Carolina
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Batinic-Haberle I, Tovmasyan A, Roberts ERH, Vujaskovic Z, Leong KW, Spasojevic I. SOD therapeutics: latest insights into their structure-activity relationships and impact on the cellular redox-based signaling pathways. Antioxid Redox Signal 2014; 20:2372-415. [PMID: 23875805 PMCID: PMC4005498 DOI: 10.1089/ars.2012.5147] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 06/30/2013] [Accepted: 07/22/2013] [Indexed: 01/23/2023]
Abstract
SIGNIFICANCE Superoxide dismutase (SOD) enzymes are indispensable and ubiquitous antioxidant defenses maintaining the steady-state levels of O2·(-); no wonder, thus, that their mimics are remarkably efficacious in essentially any animal model of oxidative stress injuries thus far explored. RECENT ADVANCES Structure-activity relationship (half-wave reduction potential [E1/2] versus log kcat), originally reported for Mn porphyrins (MnPs), is valid for any other class of SOD mimics, as it is dominated by the superoxide reduction and oxidation potential. The biocompatible E1/2 of ∼+300 mV versus normal hydrogen electrode (NHE) allows powerful SOD mimics as mild oxidants and antioxidants (alike O2·(-)) to readily traffic electrons among reactive species and signaling proteins, serving as fine mediators of redox-based signaling pathways. Based on similar thermodynamics, both SOD enzymes and their mimics undergo similar reactions, however, due to vastly different sterics, with different rate constants. CRITICAL ISSUES Although log kcat(O2·(-)) is a good measure of therapeutic potential of SOD mimics, discussions of their in vivo mechanisms of actions remain mostly of speculative character. Most recently, the therapeutic and mechanistic relevance of oxidation of ascorbate and glutathionylation and oxidation of protein thiols by MnP-based SOD mimics and subsequent inactivation of nuclear factor κB has been substantiated in rescuing normal and killing cancer cells. Interaction of MnPs with thiols seems to be, at least in part, involved in up-regulation of endogenous antioxidative defenses, leading to the healing of diseased cells. FUTURE DIRECTIONS Mechanistic explorations of single and combined therapeutic strategies, along with studies of bioavailability and translational aspects, will comprise future work in optimizing redox-active drugs.
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Affiliation(s)
- Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Emily R. H. Roberts
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Zeljko Vujaskovic
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Kam W. Leong
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
- King Abdulaziz University, Jeddah, Saudi Arabia Kingdom
| | - Ivan Spasojevic
- Department of Medicine, Duke University Medical School, Durham, North Carolina
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Gauter-Fleckenstein B, Reboucas JS, Fleckenstein K, Tovmasyan A, Owzar K, Jiang C, Batinic-Haberle I, Vujaskovic Z. Robust rat pulmonary radioprotection by a lipophilic Mn N-alkylpyridylporphyrin, MnTnHex-2-PyP(5+). Redox Biol 2014; 2:400-10. [PMID: 24624330 PMCID: PMC3949096 DOI: 10.1016/j.redox.2013.12.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 12/19/2013] [Accepted: 12/20/2013] [Indexed: 12/21/2022] Open
Abstract
With the goal to enhance the distribution of cationic Mn porphyrins within mitochondria, the lipophilic Mn(III)meso-tetrakis(N-n-hexylpyridinium-2-yl)porphyrin, MnTnHex-2-PyP(5+) has been synthesized and tested in several different model of diseases, where it shows remarkable efficacy at as low as 50 µg/kg single or multiple doses. Yet, in a rat lung radioprotection study, at higher 0.6-1 mg/kg doses, due to its high accumulation and micellar character, it became toxic. To avoid the toxicity, herein the pulmonary radioprotection of MnTnHex-2-PyP(5+) was assessed at 50 µg/kg. Fischer rats were irradiated to their right hemithorax (28 Gy) and treated with 0.05 mg/kg/day of MnTnHex-2-PyP(5+) for 2 weeks by subcutaneously-implanted osmotic pumps, starting at 2 h post-radiation. The body weights and breathing frequencies were followed for 10 weeks post-radiation, when the histopathology and immunohistochemistry were assessed. Impact of MnTnHex-2-PyP(5+) on macrophage recruitment (ED-1), DNA oxidative damage (8-OHdG), TGF-β1, VEGF(A) and HIF-1α were measured. MnTnHex-2-PyP(5+) significantly decreased radiation-induced lung histopathological (H&E staining) and functional damage (breathing frequencies), suppressed oxidative stress directly (8-OHdG), or indirectly, affecting TGF-β1, VEGF (A) and HIF-1α pathways. The magnitude of the therapeutic effects is similar to the effects demonstrated under same experimental conditions with 120-fold higher dose of ~5000-fold less lipophilic Mn(III)meso-tetrakis(N-ethylpyridinium-2-yl)porphyrin, MnTE-2-PyP(5+).
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Key Words
- 8-OHdG, 8-hydroxy-2'-deoxyguanosine
- AKT, protein kinase B (PKB), a serine/threonine-specific protein kinase
- ALS, amyotrophic laterial sclerosis
- AP-1, activator protein-1
- AT, ataxia telangiectasia
- BBB, blood brain barrier
- Breathing frequencies
- CNS, central nervous system
- CO3−, carbonate radical
- ClO−, hypochlorite
- ETC, mitochondrial electron transport chain
- Fischer rats
- GMP, good manufacturing practice
- GS−, monodeprotonated glutathione
- HIF-1α, hypoxia inducible factor-1
- HO2−, monodeprotonated hydrogen peroxide
- Histopathology
- I/R, ischemia reperfusion
- Immunohistochemistry
- Lung injury
- MCAO, middle cerebral artery occlusion
- Manganese porphyrins
- MnP, Mn porphyrin
- MnTDE-2-ImP5+, Mn(III) tetrakis[N,N'-diethylimidazolium-2-yl)porphyrin, AEOL10150
- MnTE-2-PyP5+
- MnTE-2-PyP5+, Mn(III) meso-tetrakis(N-ethylpyridinium-2-yl)porphyrin (AEOL10113)
- MnTnBuOE-2-PyP5+, Mn(III) meso-tetrakis(N-(n-butoxyethyl)pyridinium-2-yl)porphyrin
- MnTnHex-2-PyP5+
- MnTnHex-2-PyP5+, Mn(III) meso-tetrakis(N-(n-hexyl)pyridinium-2-yl)porphyrin (AEOL10113)
- NF-κB, nuclear factor κB
- NHE, normal hydrogen electrode
- NO, nitric oxide
- NOX4, NADPH oxidase, isoform 4 E1/2, Half-wave metal-centered reduction potential
- Nrf-2, nuclear factor-erythroid-derived 2-like 2
- O2−, superoxide
- ONOO−, peroxynitrite
- PI3K, phosphatidylinositide 3-kinase
- PTEN, phosphoinositide 3-phosphatase
- Radioprotection
- Redox-modulators
- SAH, subarachnoid hemorrhage
- SOD, superoxide dismutase
- SP-1, specificity protein-1
- TF, transcription factor
- TGF-β1, one of the 3 members of the TGF-β transforming growth factor-β family
- VEGF, vascular endothelial growth factor
- mTOR, mammalian target of rapamycin (mTOR), a serine/threonine protein kinase
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Affiliation(s)
- Benjamin Gauter-Fleckenstein
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA ; Department of Radiation Oncology, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Julio S Reboucas
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Katharina Fleckenstein
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA ; Department of Radiation Oncology, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Kouros Owzar
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, USA ; Biostatistics and Computational Biology Core, RadCCORE, Duke University Medical Center, Durham, USA
| | - Chen Jiang
- Biostatistics and Computational Biology Core, RadCCORE, Duke University Medical Center, Durham, USA
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Zeljko Vujaskovic
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA ; Division of Translational Radiation Sciences, Department of Radiation Oncology, University of Maryland, 655W Baltimore Street, Bressler Research Building, 8-025, Baltimore, MD 21201, USA
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Cacabelos R, Cacabelos P, Torrellas C, Tellado I, Carril JC. Pharmacogenomics of Alzheimer's disease: novel therapeutic strategies for drug development. Methods Mol Biol 2014; 1175:323-556. [PMID: 25150875 DOI: 10.1007/978-1-4939-0956-8_13] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is a major problem of health and disability, with a relevant economic impact on our society. Despite important advances in pathogenesis, diagnosis, and treatment, its primary causes still remain elusive, accurate biomarkers are not well characterized, and the available pharmacological treatments are not cost-effective. As a complex disorder, AD is a polygenic and multifactorial clinical entity in which hundreds of defective genes distributed across the human genome may contribute to its pathogenesis. Diverse environmental factors, cerebrovascular dysfunction, and epigenetic phenomena, together with structural and functional genomic dysfunctions, lead to amyloid deposition, neurofibrillary tangle formation, and premature neuronal death, the major neuropathological hallmarks of AD. Future perspectives for the global management of AD predict that genomics and proteomics may help in the search for reliable biomarkers. In practical terms, the therapeutic response to conventional drugs (cholinesterase inhibitors, multifactorial strategies) is genotype-specific. Genomic factors potentially involved in AD pharmacogenomics include at least five categories of gene clusters: (1) genes associated with disease pathogenesis; (2) genes associated with the mechanism of action of drugs; (3) genes associated with drug metabolism (phase I and II reactions); (4) genes associated with drug transporters; and (5) pleiotropic genes involved in multifaceted cascades and metabolic reactions. The implementation of pharmacogenomic strategies will contribute to optimize drug development and therapeutics in AD and related disorders.
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Affiliation(s)
- Ramón Cacabelos
- Chair of Genomic Medicine, Camilo José Cela University, 28692, Villanueva de la Cañada, Madrid, Spain,
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Archambeau JO, Tovmasyan A, Pearlstein RD, Crapo JD, Batinic-Haberle I. Superoxide dismutase mimic, MnTE-2-PyP(5+) ameliorates acute and chronic proctitis following focal proton irradiation of the rat rectum. Redox Biol 2013; 1:599-607. [PMID: 24363995 PMCID: PMC3863774 DOI: 10.1016/j.redox.2013.10.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 10/12/2013] [Accepted: 10/14/2013] [Indexed: 01/05/2023] Open
Abstract
Radiation proctitis, an inflammation and damage to the lower part of colon, is a common adverse event of the radiotherapy of tumors in the abdominal and pelvic region (colon, prostate, cervical). Several Mn(III) porphyrin-based superoxide dismutase mimics have been synthesized and successfully evaluated in preclinical models as radioprotectants. Here we report for the first time the remarkable rectal radioprotection of frequently explored Mn(III) meso-tetrakis(N-ethylpyridinium-2-yl)porphyrin, MnTE-2-PyP(5+). A batch prepared in compliance with good manufacturing practice (GMP), which has good safety/toxicity profile, was used for this study. MnTE-2-PyP(5+) was given subcutaneously at 5 mg/kg, either 1 h before or 1 h after irradiation, with additional drug administered at weekly intervals thereafter. MnTE-2-PyP(5+) ameliorated both acute and chronic radiation proctitis in male Sprague-Dawley rats irradiated with 20-30 Gy protons delivered to 2.5 cm span of rectum using spread-out Bragg peak of a proton treatment beam. Focal irradiation of the rectum produced acute proctitis, which healed, followed by chronic rectal dilation and symptomatic proctitis. MnTE-2-PyP(5+) protected rectal mucosa from radiation-induced crypt loss measured 10 days post-irradiation. Significant effects were observed with both pre- and post-treatment regimens. However, only MnTE-2-PyP(5+) pre-treatment, but not post-treatment, prevented the development of rectal dilation, indicating that proper dosing regimen is critical for radioprotection. The pre-treatment also prevented or delayed the development of chronic proctitis depending on the radiation dose. Further work aimed at developing MnTE-2-PyP(5+) and similar drugs as adjunctive agents for radiotherapy of pelvic tumors is warranted. The present study substantiates the prospects of employing this and similar analogs in preserving normal tissue during cancer radiation as well as any other radiation exposure.
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Key Words
- AP-1, activator protein-1
- CGE, cobalt gray equivalent
- GSH, glutathione
- HIF-1α, hypoxia inducible factor-1
- Mn porphyrin
- MnP, Mn(III) porphyrins
- MnTDE-2-ImP5+, Mn(III) meso-tetrakis(N,N’-diethylimidazolium-2-yl)porphyrin (AEOL10150)
- MnTE-2-PyP5+
- MnTE-2-PyP5+, Mn(III) meso-tetrakis(N-ethylpyridinium-2-yl)porphyrin (AEOL10113, BMX-010)
- MnTM-2-PyP5+, Mn(III) meso-tetrakis(N-methylpyridinium-2-yl)porphyrin (AEOL10112)
- MnTnBuOE-2-PyP5+, Mn(III) meso-tetrakis(N-n-butoxyethylpyridinium-2-yl)porphyrin
- MnTnHex-2-PyP5+, Mn(III) meso-tetrakis(N-n-hexylpyridinium-2-yl)porphyrin (BMX-001)
- NF-κB, nuclear factor κB
- PT, proton therapy
- Proton beam therapy
- Radiation proctitis
- Radioprotector
- SOD mimic
- SOD, superoxide dismutase
- SP-1, specificity protein-1
- TF, transcription factor
- kcat(O2−), the rate constant for the catalysis of O2− dismutation by Mn porphyrin or SOD enzyme
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Affiliation(s)
- John O Archambeau
- Department of Radiation Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Robert D Pearlstein
- Department of Surgery (Neurosurgery), Duke University School of Medicine, Durham, NC 27710, USA
| | - James D Crapo
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Denver, CO 80206, USA
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA
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Ali DK, Oriowo M, Tovmasyan A, Batinic-Haberle I, Benov L. Late administration of Mn porphyrin-based SOD mimic enhances diabetic complications. Redox Biol 2013; 1:457-66. [PMID: 24191241 PMCID: PMC3815015 DOI: 10.1016/j.redox.2013.09.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 09/11/2013] [Accepted: 09/12/2013] [Indexed: 01/12/2023] Open
Abstract
Mn(III) N-alkylpyridylporphyrins (MnPs) have demonstrated protection in various conditions where increased production of reactive oxygen/reactive nitrogen species (ROS/RNS), is a key pathological factors. MnPs can produce both pro-oxidative and antioxidative effects depending upon the cellular redox environment that they encounter. Previously we reported (Free Radic. Res. 39: 81–8, 2005) that when the treatment started at the onset of diabetes, Mn(III) meso-tetrakis(N-methylpyridinium-2-yl)porphyrin, MnTM-2-PyP5+ suppressed diabetes-induced oxidative stress. Diabetes, however, is rarely diagnosed at its onset. The aim of this study was to investigate if MnTM-2-PyP5+ can suppress oxidative damage and prevent diabetic complications when administered more than a week after the onset of diabetes. Diabetes was induced by streptozotocin. The MnP-based treatment started 8 days after the onset of diabetes and continued for 2 months. The effect of the treatment on activities of glutathione peroxidase, superoxide dismutase, catalase, glutathione reductase, glucose-6-phosphate dehydrogenase, glyceraldehyde-3-phosphate dehydrogenase, and glyoxalases I and II as well as malondialdehyde and GSH/GSSG ratio were determined in kidneys. Kidney function was assessed by measuring lysozyme and total protein in urine and blood urea nitrogen. Vascular damage was evaluated by assessing vascular reactivity. Our data showed that delayed administration of MnTM-2-PyP5+ did not protect against oxidative damage and did not prevent diabetic complications. Moreover, MnTM-2-PyP5+ contributed to the kidney damage, which seems to be a consequence of its pro-oxidative action. Such outcome can be explained by advanced oxidative damage which already existed at the moment the therapy with MnP started. The data support the concept that the overall biological effect of a redox-active MnP is determined by (i) the relative concentrations of oxidants and reductants, i.e. the cellular redox environment and (ii) MnP biodistribution. Mn porphyrins (MnP) are among the most potent SOD mimics. MnP suppressed diabetes-induced oxidative stress if applied at the onset of diabetes. Delayed administration of MnP augmented oxidative stress and diabetic complications. The overall in vivo effect of MnP depends on its redox environment.
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Affiliation(s)
- Dana K. Ali
- Department of Biochemistry, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait
| | - Mabayoje Oriowo
- Department of Pharmacology, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC 27710, USA
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical Center, Durham, NC 27710, USA
- Correspondence to: Department of Radiation Oncology, Duke University Medical Center, Research Drive, 281b/285, MSRB I, Box 3455, Durham, NC 27710, USA. Tel.: +1 919 684 2101; fax: +1 919 684 8718.
| | - Ludmil Benov
- Department of Biochemistry, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait
- Corresponding author. Tel.: +965 2531 9489; fax: +965 2533 8908.
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Batinic-Haberle I, Tovmasyan A, Spasojevic I. The complex mechanistic aspects of redox-active compounds, commonly regarded as SOD mimics. ACTA ACUST UNITED AC 2013. [DOI: 10.1515/irm-2013-0004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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