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Nheu D, Petratos S. How does Nogo-A signalling influence mitochondrial function during multiple sclerosis pathogenesis? Neurosci Biobehav Rev 2024:105767. [PMID: 38885889 DOI: 10.1016/j.neubiorev.2024.105767] [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: 03/17/2024] [Revised: 05/30/2024] [Accepted: 06/08/2024] [Indexed: 06/20/2024]
Abstract
Multiple sclerosis (MS) is a severe neurological disorder that involves inflammation in the brain, spinal cord and optic nerve with key disabling neuropathological outcomes being axonal damage and demyelination. When degeneration of the axo-glial union occurs, a consequence of inflammatory damage to central nervous system (CNS) myelin, dystrophy and death can lead to large membranous structures from dead oligodendrocytes and degenerative myelin deposited in the extracellular milieu. For the first time, this review covers mitochondrial mechanisms that maybe operative during MS-related neurodegenerative changes directly activated during accumulating extracellular deposits of myelin associated inhibitory factors (MAIFs), that include the potent inhibitor of neurite outgrowth, Nogo-A. Axonal damage may occur when Nogo-A binds to and signals through its cognate receptor, NgR1, multimeric complex, to initially stall axonal transport and limit the delivery of important growth-dependent cargo and subcellular organelles such as mitochondria for metabolic efficiency at sites of axo-glial disintegration as a consequence of inflammation. Metabolic efficiency in axons fails during active demyelination and progressive neurodegeneration, preceded by stalled transport of functional mitochondria to fuel axo-glial integrity.
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Affiliation(s)
- Danica Nheu
- Department of Neuroscience, School of Translational Medicine, Monash University, Prahran, VIC 3004, Australia
| | - Steven Petratos
- Department of Neuroscience, School of Translational Medicine, Monash University, Prahran, VIC 3004, Australia.
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2
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Bogoje Raspopović A, Balta V, Vodopić M, Drobac M, Boroš A, Đikić D, Demarin V. The possible role of oxidative stress marker glutathione in the assessment of cognitive impairment in multiple sclerosis. Open Med (Wars) 2024; 19:20240952. [PMID: 38623459 PMCID: PMC11017180 DOI: 10.1515/med-2024-0952] [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: 10/05/2023] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 04/17/2024] Open
Abstract
Oxidative stress markers have a distinct role in the process of demyelination in multiple sclerosis. This study investigated the potential correlation of markers of oxidative stress (glutathione [GSH], catalase) with the number of demyelinating lesions and the degree of disability, cognitive deficit, and depression in patients with relapsing-remitting multiple sclerosis (RRMS). Sixty subjects meeting the criteria for RRMS (19 men and 41 women), and 66 healthy controls (24 men, 42 women) were included. In this study, GSH significantly negatively correlated with the degree of cognitive impairment. This is the first study of subjects with RRMS that performed the mentioned research of serum GSH levels on the degree of cognitive damage examined by the Montreal Scale of Cognitive Assessment (MoCA) test. The development of cognitive changes, verified by the MoCA test, was statistically significantly influenced by the positive number of magnetic resonance lesions, degree of depression, expanded disability status scale (EDSS), age, and GSH values. Based on these results, it can be concluded that it is necessary to monitor cognitive status early in RRMS patients, especially in those with a larger number of demyelinating lesions and a higher EDSS level and in older subjects. Also, the serum level of GSH is a potential biomarker of disease progression, which could be used more widely in RRMS.
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Affiliation(s)
- Andrijana Bogoje Raspopović
- Department of Neurology, General Hospital Dubrovnik, Dubrovnik, Croatia
- Department of Animal Physiology, Biology Division, Faculty of Science, University of Zagreb, 10000Zagreb, Croatia
| | - Vedran Balta
- Department of Animal Physiology, Biology Division, Faculty of Science, University of Zagreb, 10000Zagreb, Croatia
| | - Maro Vodopić
- Department of Neurology, General Hospital Dubrovnik, Dubrovnik, Croatia
| | - Marina Drobac
- Department of Neurology, General Hospital Dubrovnik, Dubrovnik, Croatia
| | - Almoš Boroš
- Czech Academy of Science, Institute of Physiology, Prague, Czechia
| | - Domagoj Đikić
- Department of Animal Physiology, Biology Division, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000Zagreb, Croatia
| | - Vida Demarin
- Croatian Academy of Sciences and Arts, Zagreb, Croatia
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3
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Li F, Zong W, Xin C, Ren F, Li N, Li H, Li X, Wu L, Dai Z, Chen W, Li M, Gao F, Wang G. Unlocking the link: how hippocampal glutathione-glutamate coupling predicts cognitive impairment in multiple sclerosis patients. Cereb Cortex 2024; 34:bhad400. [PMID: 37943724 DOI: 10.1093/cercor/bhad400] [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: 05/04/2023] [Revised: 08/24/2023] [Accepted: 10/02/2023] [Indexed: 11/12/2023] Open
Abstract
Cognitive impairment is a common symptom of multiple sclerosis and profoundly impacts quality of life. Glutathione (GSH) and glutamate (Glu) are tightly linked in the brain, participating in cognitive function. However, GSH-Glu couplings in cognitive brain regions and their relationship with cognitive impairment in relapsing-remitting multiple sclerosis (RRMS) remains unclear. Forty-one RRMS patients and 43 healthy controls underwent magnetic resonance spectroscopy to measure GSH and Glu levels in the posterior cingulate cortex, medial prefrontal cortex and left hippocampus. Neuropsychological tests were used to evaluate the cognitive function. The Glu/GSH ratio was used to indicate the coupling between GSH and Glu and was tested as a predictor of cognitive performance. The results show that RRMS patients exhibited reduced hippocampal GSH and Glu levels, which were found to be significant predictors of worse verbal and visuospatial memory, respectively. Moreover, GSH levels were dissociated from Glu levels in the left hippocampus of RRMS patients. Hippocampal Glu/GSH ratio is significantly correlated with processing speed and has a greater predictive effect. Here we show the hippocampal Glu/GSH ratio could serve as a new potential marker for characterizing cognitive impairment in RRMS, providing a new direction for clinical detection of cognitive impairment.
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Affiliation(s)
- Fuyan Li
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China
| | - Wei Zong
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China
| | - Chenxi Xin
- School of International Education, Xinxiang Medical University, No. 601, Jinsui Avenue, Hongqi District, Xinxiang 453003, China
| | - Fuxin Ren
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China
- Department of Radiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jing-wu Road No. 324, Jinan,250021 China
| | - Ning Li
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China
- Department of Radiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jing-wu Road No. 324, Jinan,250021 China
| | - Honghao Li
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China
| | - Xiao Li
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China
- Department of Radiology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jing-wu Road No. 324, Jinan,250021 China
| | - Lili Wu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, No. 16, Lincui Road, Beijing 100101, China
| | - Zongrui Dai
- Department of Biostatistics, University of Michigan, 500 S. State Street, Ann Arbor, Ann Arbor, MI 48109, United States
| | - Weibo Chen
- Philips Healthcare, Building 718, Lingshi Road, Jing'an District, Shanghai 200072, China
| | - Muwei Li
- Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, 1161 21st Ave. S, Medical Center North, AA-1105, Nashville, TN 37232-2310, United States
| | - Fei Gao
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China
| | - Guangbin Wang
- Key Laboratory of Endocrine Glucose & Lipids Metabolism and Brain Aging, Ministry of Education; Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jing-wu Road No. 324, Jinan 250021, China
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4
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Židó M, Kačer D, Valeš K, Zimová D, Štětkářová I. Metabolomics of Cerebrospinal Fluid Amino and Fatty Acids in Early Stages of Multiple Sclerosis. Int J Mol Sci 2023; 24:16271. [PMID: 38003464 PMCID: PMC10671192 DOI: 10.3390/ijms242216271] [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: 08/04/2023] [Revised: 11/07/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Multiple sclerosis (MS) is a demyelinating and neurodegenerative autoimmune disease of the central nervous system (CNS) damaging myelin and axons. Diagnosis is based on the combination of clinical findings, magnetic resonance imaging (MRI) and analysis of cerebrospinal fluid (CSF). Metabolomics is a systematic study that allows us to track amounts of different metabolites in a chosen medium. The aim of this study was to establish metabolomic differences between the cerebrospinal fluid of patients in the early stages of multiple sclerosis and healthy controls, which could potentially serve as markers for predicting disease activity. We collected CSF from 40 patients after the first attack of clinical symptoms who fulfilled revised McDonald criteria of MS, and the CSF of 33 controls. Analyses of CSF samples were performed by using the high-performance liquid chromatography system coupled with a mass spectrometer with a high-resolution detector. Significant changes in concentrations of arginine, histidine, spermidine, glutamate, choline, tyrosine, serine, oleic acid, stearic acid and linoleic acid were observed. More prominently, Expanded Disability Status Scale values significantly correlated with lower concentrations of histidine. We conclude that these metabolites could potentially play a role as a biomarker of disease activity and predict presumable inflammatory changes.
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Affiliation(s)
- Michal Židó
- Department of Neurology, Third Faculty of Medicine, Charles University, 100 00 Prague, Czech Republic;
- Department of Neurology, Faculty Hospital Královské Vinohrady, 100 34 Prague, Czech Republic;
| | - David Kačer
- National Institute of Mental Health, 250 67 Klecany, Czech Republic; (D.K.); (K.V.)
| | - Karel Valeš
- National Institute of Mental Health, 250 67 Klecany, Czech Republic; (D.K.); (K.V.)
- Department of Psychiatry and Medical Psychology, Third Faculty of Medicine, Charles University, 100 00 Prague, Czech Republic
| | - Denisa Zimová
- Department of Neurology, Faculty Hospital Královské Vinohrady, 100 34 Prague, Czech Republic;
| | - Ivana Štětkářová
- Department of Neurology, Third Faculty of Medicine, Charles University, 100 00 Prague, Czech Republic;
- Department of Neurology, Faculty Hospital Královské Vinohrady, 100 34 Prague, Czech Republic;
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Li W, Wu M, Li Y, Shen J. Reactive nitrogen species as therapeutic targets for autophagy/mitophagy modulation to relieve neurodegeneration in multiple sclerosis: Potential application for drug discovery. Free Radic Biol Med 2023; 208:37-51. [PMID: 37532065 DOI: 10.1016/j.freeradbiomed.2023.07.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/04/2023]
Abstract
Multiple sclerosis (MS) is a neuroinflammatory disease with limited therapeutic effects, eventually developing into handicap. Seeking novel therapeutic strategies for MS is timely important. Active autophagy/mitophagy could mediate neurodegeneration, while its roles in MS remain controversial. To elucidate the exact roles of autophagy/mitophagy and reveal its in-depth regulatory mechanisms, we conduct a systematic literature study and analyze the factors that might be responsible for divergent results obtained. The dynamic change levels of autophagy/mitophagy appear to be a determining factor for final neuron fate during MS pathology. Excessive neuronal autophagy/mitophagy contributes to neurodegeneration after disease onset at the active MS phase. Reactive nitrogen species (RNS) serve as key regulators for redox-related modifications and participate in autophagy/mitophagy modulation in MS. Nitric oxide (•NO) and peroxynitrite (ONOO-), two representative RNS, could nitrate or nitrosate Drp1/parkin/PINK1 pathway, activating excessive mitophagy and aggravating neuronal injury. Targeting RNS-mediated excessive autophagy/mitophagy could be a promising strategy for developing novel anti-MS drugs. In this review, we highlight the important roles of RNS-mediated autophagy/mitophagy in neuronal injury and review the potential therapeutic compounds with the bioactivities of inhibiting RNS-mediated autophagy/mitophagy activation and attenuating MS progression. Overall, we conclude that reactive nitrogen species could be promising therapeutic targets to regulate autophagy/mitophagy for multiple sclerosis treatment.
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Affiliation(s)
- Wenting Li
- Department of Pharmacy, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China.
| | - Meiling Wu
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
| | - Yuzhen Li
- Department of Pharmacy, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China.
| | - Jiangang Shen
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
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6
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Abstract
Iron accumulation in the CNS occurs in many neurological disorders. It can contribute to neuropathology as iron is a redox-active metal that can generate free radicals. The reasons for the iron buildup in these conditions are varied and depend on which aspects of iron influx, efflux, or sequestration that help maintain iron homeostasis are dysregulated. Iron was shown recently to induce cell death and damage via lipid peroxidation under conditions in which there is deficient glutathione-dependent antioxidant defense. This form of cell death is called ferroptosis. Iron chelation has had limited success in the treatment of neurological disease. There is therefore much interest in ferroptosis as it potentially offers new drugs that could be more effective in reducing iron-mediated lipid peroxidation within the lipid-rich environment of the CNS. In this review, we focus on the molecular mechanisms that induce ferroptosis. We also address how iron enters and leaves the CNS, as well as the evidence for ferroptosis in several neurological disorders. Finally, we highlight biomarkers of ferroptosis and potential therapeutic strategies.
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Affiliation(s)
- Samuel David
- Centre for Research in Neuroscience, and BRaIN Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Fari Ryan
- Centre for Research in Neuroscience, and BRaIN Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Priya Jhelum
- Centre for Research in Neuroscience, and BRaIN Program, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Antje Kroner
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA
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Ozkizilcik A, Sharma A, Feng L, Muresanu DF, Tian ZR, Lafuente JV, Buzoianu AD, Nozari A, Wiklund L, Sharma HS. Nanowired delivery of antibodies to tau and neuronal nitric oxide synthase together with cerebrolysin attenuates traumatic brain injury induced exacerbation of brain pathology in Parkinson's disease. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2023; 171:83-121. [PMID: 37783564 DOI: 10.1016/bs.irn.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Concussive head injury (CHI) is one of the major risk factors for developing Parkinson's disease in later life of military personnel affecting lifetime functional and cognitive disturbances. Till date no suitable therapies are available to attenuate CHI or PD induced brain pathology. Thus, further exploration of novel therapeutic agents are highly warranted using nanomedicine in enhancing the quality of life of veterans or service members of US military. Since PD or CHI induces oxidative stress and perturbs neurotrophic factors regulation associated with phosphorylated tau (p-tau) deposition, a possibility exists that nanodelivery of agents that could enhance neurotrophic factors balance and attenuate oxidative stress could be neuroprotective in nature. In this review, nanowired delivery of cerebrolysin-a balanced composition of several neurotrophic factors and active peptide fragments together with monoclonal antibodies to neuronal nitric oxide synthase (nNOS) with p-tau antibodies was examined in PD following CHI in model experiments. Our results suggest that combined administration of nanowired antibodies to nNOS and p-tau together with cerebrolysin significantly attenuated CHI induced exacerbation of PD brain pathology. This combined treatment also has beneficial effects in CHI or PD alone, not reported earlier.
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Affiliation(s)
- Asya Ozkizilcik
- Dept. Biomedical Engineering, University of Arkansas, Fayetteville, AR, United Staes
| | - Aruna Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
| | - Lianyuan Feng
- Department of Neurology, Bethune International Peace Hospital, Zhongshan Road (West), Shijiazhuang, Hebei Province, P.R. China
| | - Dafin F Muresanu
- Dept. Clinical Neurosciences, University of Medicine & Pharmacy, Cluj-Napoca, Romania; ''RoNeuro'' Institute for Neurological Research and Diagnostic, Mircea Eliade Street, Cluj-Napoca, Romania
| | - Z Ryan Tian
- Dept. Chemistry & Biochemistry, University of Arkansas, Fayetteville, AR, United States
| | - José Vicente Lafuente
- LaNCE, Dept. Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Anca D Buzoianu
- Department of Clinical Pharmacology and Toxicology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ala Nozari
- Department of Anesthesiology, Boston University, Albany str, Boston MA, United States
| | - Lars Wiklund
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden
| | - Hari Shanker Sharma
- International Experimental Central Nervous System Injury & Repair (IECNSIR), Dept. of Surgical Sciences, Anesthesiology & Intensive Care Medicine, Uppsala University Hospital, Uppsala University, Uppsala, Sweden.
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Khalatbari Mohseni G, Hosseini SA, Majdinasab N, Cheraghian B. Effects of N-acetylcysteine on oxidative stress biomarkers, depression, and anxiety symptoms in patients with multiple sclerosis. Neuropsychopharmacol Rep 2023; 43:382-390. [PMID: 37386885 PMCID: PMC10496087 DOI: 10.1002/npr2.12360] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/18/2023] [Accepted: 06/11/2023] [Indexed: 07/01/2023] Open
Abstract
AIM N-acetylcysteine (NAC), a thiol-containing antioxidant and glutathione (GSH) precursor, attenuates oxidative stress, and possibly improves psychiatric disorders. This study aimed to evaluate the effects of oral NAC on oxidative stress, depression, and anxiety symptoms in patients with multiple sclerosis (MS). METHODS This clinical trial was conducted on 42 MS patients randomly assigned to intervention (n = 21) and control (n = 21) groups. The intervention group received 600 mg of NAC twice daily for 8 weeks, and the control group received a placebo with the same prescription form. An analysis of serum malondialdehyde (MDA), serum nitric oxide (NO), and erythrocyte GSH was carried out on both groups, along with a complete blood count. The Hospital Anxiety and Depression Scale (HADS) was used to assess symptoms of depression (HADS-D) and anxiety (HADS-A). RESULTS Compared to the control group, NAC consumption significantly decreased serum MDA concentrations (-0.33 [-5.85-2.50] vs. 2.75 [-0.25-5.22] μmol/L; p = 0.03) and HADS-A scores (-1.6 ± 2.67 vs. 0.33 ± 2.83; p = 0.02). No significant changes were observed in serum NO concentrations, erythrocyte GSH levels, and HADS-D scores (p > 0.05). CONCLUSIONS Based on the findings of the present study, NAC supplementation for 8 weeks decreased lipid peroxidation and improved anxiety symptoms in MS patients. The aforementioned results suggest that adjunctive therapy with NAC can be considered an effective strategy for MS management. Further randomized controlled studies are warranted.
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Affiliation(s)
- Golsa Khalatbari Mohseni
- Nutrition and Metabolic Diseases Research CenterAhvaz Jundishapur University of Medical SciencesAhvazIran
- Department of Nutrition, School of Allied Medical SciencesAhvaz Jundishapur University of Medical SciencesAhvazIran
| | - Seyed Ahmad Hosseini
- Nutrition and Metabolic Diseases Research CenterAhvaz Jundishapur University of Medical SciencesAhvazIran
- Department of Nutrition, School of Allied Medical SciencesAhvaz Jundishapur University of Medical SciencesAhvazIran
| | - Nastaran Majdinasab
- Department of Neurology, School of MedicineAhvaz Jundishapur University of Medical SciencesAhvazIran
| | - Bahman Cheraghian
- Department of Statistics and Epidemiology, School of Public HealthAhvaz Jundishapur University of Medical SciencesAhvazIran
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Jhelum P, Zandee S, Ryan F, Zarruk JG, Michalke B, Venkataramani V, Curran L, Klement W, Prat A, David S. Ferroptosis induces detrimental effects in chronic EAE and its implications for progressive MS. Acta Neuropathol Commun 2023; 11:121. [PMID: 37491291 PMCID: PMC10369714 DOI: 10.1186/s40478-023-01617-7] [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: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 07/27/2023] Open
Abstract
Ferroptosis is a form of lipid peroxidation-mediated cell death and damage triggered by excess iron and insufficiency in the glutathione antioxidant pathway. Oxidative stress is thought to play a crucial role in progressive forms of multiple sclerosis (MS) in which iron deposition occurs. In this study we assessed if ferroptosis plays a role in a chronic form of experimental autoimmune encephalomyelitis (CH-EAE), a mouse model used to study MS. Changes were detected in the mRNA levels of several ferroptosis genes in CH-EAE but not in relapsing-remitting EAE. At the protein level, expression of iron importers is increased in the earlier stages of CH-EAE (onset and peak). While expression of hemoxygenase-1, which mobilizes iron from heme, likely from phagocytosed material, is increased in macrophages at the peak and progressive stages. Excess iron in cells is stored safely in ferritin, which increases with disease progression. Harmful, redox active iron is released from ferritin when shuttled to autophagosomes by 'nuclear receptor coactivator 4' (NCOA4). NCOA4 expression increases at the peak and progressive stages of CH-EAE and accompanied by increase in redox active ferrous iron. These changes occur in parallel with reduction in the antioxidant pathway (system xCT, glutathione peroxidase 4 and glutathione), and accompanied by increased lipid peroxidation. Mice treated with a ferroptosis inhibitor for 2 weeks starting at the peak of CH-EAE paralysis, show significant improvements in function and pathology. Autopsy samples of tissue sections of secondary progressive MS (SPMS) showed NCOA4 expression in macrophages and oligodendrocytes along the rim of mixed active/inactive lesions, where ferritin+ and iron containing cells are located. Cells expressing NCOA4 express less ferritin, suggesting ferritin degradation and release of redox active iron, as indicated by increased lipid peroxidation. These data suggest that ferroptosis is likely to contribute to pathogenesis in CH-EAE and SPMS.
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Affiliation(s)
- Priya Jhelum
- Centre for Research in Neuroscience and BRaIN Program, Research Institute of the McGill University Health Centre (RI-MUHC), Livingston Hall, Room L7-210, 1650 Cedar Ave., Montreal, QC, H3G 1A4, Canada
| | - Stephanie Zandee
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada
- Department of Neuroscience, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Fari Ryan
- Centre for Research in Neuroscience and BRaIN Program, Research Institute of the McGill University Health Centre (RI-MUHC), Livingston Hall, Room L7-210, 1650 Cedar Ave., Montreal, QC, H3G 1A4, Canada
| | - Juan G Zarruk
- Centre for Research in Neuroscience and BRaIN Program, Research Institute of the McGill University Health Centre (RI-MUHC), Livingston Hall, Room L7-210, 1650 Cedar Ave., Montreal, QC, H3G 1A4, Canada
| | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Vivek Venkataramani
- Comprehensive Cancer Center Mainfranken, University Hospital Würzburg, 97080, Würzburg, Germany
| | - Laura Curran
- Centre for Research in Neuroscience and BRaIN Program, Research Institute of the McGill University Health Centre (RI-MUHC), Livingston Hall, Room L7-210, 1650 Cedar Ave., Montreal, QC, H3G 1A4, Canada
| | - Wendy Klement
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada
- Department of Neuroscience, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Alexandre Prat
- Neuroimmunology Research Laboratory, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, QC, H2X 0A9, Canada
- Department of Neuroscience, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Samuel David
- Centre for Research in Neuroscience and BRaIN Program, Research Institute of the McGill University Health Centre (RI-MUHC), Livingston Hall, Room L7-210, 1650 Cedar Ave., Montreal, QC, H3G 1A4, Canada.
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10
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Starikova EA, Rubinstein AA, Mammedova JT, Isakov DV, Kudryavtsev IV. Regulated Arginine Metabolism in Immunopathogenesis of a Wide Range of Diseases: Is There a Way to Pass between Scylla and Charybdis? Curr Issues Mol Biol 2023; 45:3525-3551. [PMID: 37185755 PMCID: PMC10137093 DOI: 10.3390/cimb45040231] [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: 03/29/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 05/17/2023] Open
Abstract
More than a century has passed since arginine was discovered, but the metabolism of the amino acid never ceases to amaze researchers. Being a conditionally essential amino acid, arginine performs many important homeostatic functions in the body; it is involved in the regulation of the cardiovascular system and regeneration processes. In recent years, more and more facts have been accumulating that demonstrate a close relationship between arginine metabolic pathways and immune responses. This opens new opportunities for the development of original ways to treat diseases associated with suppressed or increased activity of the immune system. In this review, we analyze the literature describing the role of arginine metabolism in the immunopathogenesis of a wide range of diseases, and discuss arginine-dependent processes as a possible target for therapeutic approaches.
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Affiliation(s)
- Eleonora A Starikova
- Laboratory of Cellular Immunology, Department of Immunology, Institute of Experimental Medicine, Akademika Pavlova 12, 197376 Saint Petersburg, Russia
- Medical Faculty, First Saint Petersburg State I. Pavlov Medical University, L'va Tolstogo St. 6-8, 197022 Saint Petersburg, Russia
| | - Artem A Rubinstein
- Laboratory of Cellular Immunology, Department of Immunology, Institute of Experimental Medicine, Akademika Pavlova 12, 197376 Saint Petersburg, Russia
| | - Jennet T Mammedova
- Laboratory of General Immunology, Department of Immunology, Institute of Experimental Medicine, Akademika Pavlova 12, 197376 Saint Petersburg, Russia
| | - Dmitry V Isakov
- Medical Faculty, First Saint Petersburg State I. Pavlov Medical University, L'va Tolstogo St. 6-8, 197022 Saint Petersburg, Russia
| | - Igor V Kudryavtsev
- Laboratory of Cellular Immunology, Department of Immunology, Institute of Experimental Medicine, Akademika Pavlova 12, 197376 Saint Petersburg, Russia
- School of Biomedicine, Far Eastern Federal University, FEFU Campus, 10 Ajax Bay, Russky Island, 690922 Vladivostok, Russia
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11
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Alomar HA, Nadeem A, Ansari MA, Attia SM, Bakheet SA, Al-Mazroua HA, Alhazzani K, Assiri MA, Alqinyah M, Almudimeegh S, Ahmad SF. Mitogen-activated protein kinase inhibitor PD98059 improves neuroimmune dysfunction in experimental autoimmune encephalomyelitis in SJL/J mice through the inhibition of nuclear factor-kappa B signaling in B cells. Brain Res Bull 2023; 194:45-53. [PMID: 36646144 DOI: 10.1016/j.brainresbull.2023.01.003] [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: 06/19/2022] [Revised: 12/20/2022] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
Multiple sclerosis (MS) is a severe autoimmune disease leading to demyelination, followed by consequent axonal degeneration, causing sensory, motor, cognitive, and visual symptoms. Experimental autoimmune encephalomyelitis (EAE) is the most well-studied animal model of MS. Most current MS treatments are not completely effective, and severe side effects remain a great challenge. In this study, we report the therapeutic efficacy of PD98059, a potent mitogen-activated protein kinase inhibitor, on proteolipid protein (PLP)139-151-induced EAE in SJL/J mice. Following the induction of EAE, mice were intraperitoneally treated with PD98059 (5 mg/kg for 14 days) daily from day 14 to day 28. This study investigated the effects of PD98059 on C-C motif chemokine receptor 6 (CCR6), CD14, NF-κB p65, IκBα, GM-CSF, iNOS, IL-6, TNF-α in CD45R+ B lymphocytes using flow cytometry. Furthermore, we analyzed the effect of PD98059 on CCR6, CD14, NF-κB p65, GM-CSF, iNOS, IL-6, and TNF-α mRNA and protein expression levels using qRT-PCR analysis in brain tissues. Mechanistic investigations revealed that PD98059-treated in mice with EAE had reduced CD45R+CCR6+, CD45R+CD14+, CD45R+NF-κB p65+, CD45R+GM-CSF+, CD45R+iNOS+, CD45R+IL-6+, and CD45R+TNF-α+ cells and increased CD45R+IκBα+ cells compared with vehicle-treated control mice in the spleen. Moreover, downregulation of CCR6, CD14, NF-κB p65, GM-CSF, iNOS, IL-6, and TNF-α mRNA expression level was observed in PD98059-treated mice with EAE compared with vehicle-treated control mice in the brain tissue. The results of this study demonstrate that PD98059 modulates inflammatory mediators through multiple cellular mechanisms. The results of this study suggest that PD98059 may be pursued as a therapeutic agent for the treatment of MS.
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Affiliation(s)
- Hatun A Alomar
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mushtaq A Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saleh A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Haneen A Al-Mazroua
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khalid Alhazzani
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed A Assiri
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed Alqinyah
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sultan Almudimeegh
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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12
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Tonev DG, Momchilova AB. Therapeutic Plasma Exchange in Certain Immune-Mediated Neurological Disorders: Focus on a Novel Nanomembrane-Based Technology. Biomedicines 2023; 11:biomedicines11020328. [PMID: 36830870 PMCID: PMC9953422 DOI: 10.3390/biomedicines11020328] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/26/2023] Open
Abstract
Therapeutic plasma exchange (TPE) is an efficient extracorporeal blood purification technique to remove circulating autoantibodies and other pathogenic substances. Its mechanism of action in immune-mediated neurological disorders includes immediate intravascular reduction of autoantibody concentration, pulsed induction of antibody redistribution, and subsequent immunomodulatory changes. Conventional TPE with 1 to 1.5 total plasma volume (TPV) exchange is a well-established treatment in Guillain-Barre Syndrome, Chronic Inflammatory Demyelinating Polyradiculoneuropathy, Neuromyelitis Optica Spectrum Disorder, Myasthenia Gravis and Multiple Sclerosis. There is insufficient evidence for the efficacy of so-called low volume plasma exchange (LVPE) (<1 TPV exchange) implemented either by the conventional or by a novel nanomembrane-based TPE in these neurological conditions, including their impact on conductivity and neuroregenerative recovery. In this narrative review, we focus on the role of nanomembrane-based technology as an alternative LVPE treatment option in these neurological conditions. Nanomembrane-based technology is a promising type of TPE, which seems to share the basic advantages of the conventional one, but probably with fewer adverse effects. It could play a valuable role in patient management by ameliorating neurological symptoms, improving disability, and reducing oxidative stress in a cost-effective way. Further research is needed to identify which patients benefit most from this novel TPE technology.
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Affiliation(s)
- Dimitar G. Tonev
- Department of Anesthesiology and Intensive Care, Medical University of Sofia, University Hospital “Tzaritza Yoanna—ISUL”, 1527 Sofia, Bulgaria
- Correspondence:
| | - Albena B. Momchilova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Science, 1113 Sofia, Bulgaria
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13
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Tripathi R, Gupta R, Sahu M, Srivastava D, Das A, Ambasta RK, Kumar P. Free radical biology in neurological manifestations: mechanisms to therapeutics interventions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:62160-62207. [PMID: 34617231 DOI: 10.1007/s11356-021-16693-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Recent advancements and growing attention about free radicals (ROS) and redox signaling enable the scientific fraternity to consider their involvement in the pathophysiology of inflammatory diseases, metabolic disorders, and neurological defects. Free radicals increase the concentration of reactive oxygen and nitrogen species in the biological system through different endogenous sources and thus increased the overall oxidative stress. An increase in oxidative stress causes cell death through different signaling mechanisms such as mitochondrial impairment, cell-cycle arrest, DNA damage response, inflammation, negative regulation of protein, and lipid peroxidation. Thus, an appropriate balance between free radicals and antioxidants becomes crucial to maintain physiological function. Since the 1brain requires high oxygen for its functioning, it is highly vulnerable to free radical generation and enhanced ROS in the brain adversely affects axonal regeneration and synaptic plasticity, which results in neuronal cell death. In addition, increased ROS in the brain alters various signaling pathways such as apoptosis, autophagy, inflammation and microglial activation, DNA damage response, and cell-cycle arrest, leading to memory and learning defects. Mounting evidence suggests the potential involvement of micro-RNAs, circular-RNAs, natural and dietary compounds, synthetic inhibitors, and heat-shock proteins as therapeutic agents to combat neurological diseases. Herein, we explain the mechanism of free radical generation and its role in mitochondrial, protein, and lipid peroxidation biology. Further, we discuss the negative role of free radicals in synaptic plasticity and axonal regeneration through the modulation of various signaling molecules and also in the involvement of free radicals in various neurological diseases and their potential therapeutic approaches. The primary cause of free radical generation is drug overdosing, industrial air pollution, toxic heavy metals, ionizing radiation, smoking, alcohol, pesticides, and ultraviolet radiation. Excessive generation of free radicals inside the cell R1Q1 increases reactive oxygen and nitrogen species, which causes oxidative damage. An increase in oxidative damage alters different cellular pathways and processes such as mitochondrial impairment, DNA damage response, cell cycle arrest, and inflammatory response, leading to pathogenesis and progression of neurodegenerative disease other neurological defects.
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Affiliation(s)
- Rahul Tripathi
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India
| | - Rohan Gupta
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India
| | - Mehar Sahu
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India
| | - Devesh Srivastava
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India
| | - Ankita Das
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India
| | - Rashmi K Ambasta
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India
| | - Pravir Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India.
- , Delhi, India.
- Molecular Neuroscience and Functional Genomics Laboratory, Shahbad Daulatpur, Bawana Road, Delhi, 110042, India.
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14
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Ansari MA, Nadeem A, Attia SM, Bakheet SA, Shahid M, Rehman MU, Alanazi MM, Alhamed AS, Ibrahim KE, Albekairi NA, Ahmad SF. CCR1 antagonist J-113863 corrects the imbalance of pro- and anti-inflammatory cytokines in a SJL/J mouse model of relapsing-remitting multiple sclerosis. Immunobiology 2022; 227:152245. [PMID: 35868215 DOI: 10.1016/j.imbio.2022.152245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 06/20/2022] [Accepted: 07/06/2022] [Indexed: 11/17/2022]
Abstract
Multiple sclerosis (MS), an immune-mediated and neurodegenerative disorder of the central nervous system (CNS), is characterized by infiltrating myelin-reactive T lymphocytes and demyelinating lesions. Experimental autoimmune encephalomyelitis (EAE) is a well-established animal model used to study MS. To explore the impact of chemokine receptor CCR1 blockade in EAE and the underlying mechanisms, we used CCR1 antagonist J-113863 in PLP139-151-induced EAE in SJL/J mice. Following EAE induction, mice were treated with J-113863 (10 mg/kg) daily from day 14 until day 25. We investigated the effect of J-113863 on expression levels of GM-CSF, IL-6, IL-10, IL-27 in CD4+ spleen cells, using flow cytometry. We also analyzed the effect of J-113863 on GM-CSF, IL-6, IL-10, IL-27 mRNA and protein expression levels using RT-PCR and Western blot analysis in brain tissues. J-113863 treatment decreased the populations of CD4+GM-CSF+ and CD4+IL-6+ cells and increased CD4+IL-27+ and CD4+IL-10+ cells in the spleen. J-113863 had a suppressive effect on the mRNA and protein expression levels of GM-CSF, and IL-6 in the brain tissue. On the other hand, J-113863 treatment increased the mRNA and protein expression of IL-10 and IL-27 in the brain tissue. Our results highlighted J-113863's potential role in suppressing pro-inflammatory expression and up-regulating anti-inflammatory mediators, which could represent a beneficial alternative approach to MS treatment.
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Affiliation(s)
- Mushtaq A Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saleh A Bakheet
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mudassar Shahid
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Muneeb U Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed M Alanazi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdullah S Alhamed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khalid E Ibrahim
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Norah A Albekairi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sheikh F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
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15
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Tolentino M, Cho CC, Lyons JA. Photobiomodulation at 830 nm Reduced Nitrite Production by Peripheral Blood Mononuclear Cells Isolated from Multiple Sclerosis Subjects. Photobiomodul Photomed Laser Surg 2022; 40:480-487. [DOI: 10.1089/photob.2021.0170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Miguel Tolentino
- Biomedical Sciences Department, University of Wisconsin Milwaukee, Milwaukee, Wisconsin, USA
| | - Chi C. Cho
- College of Health Sciences, University of Wisconsin Milwaukee, Milwaukee, Wisconsin, USA
| | - Jeri-Anne Lyons
- Biomedical Sciences Department, University of Wisconsin Milwaukee, Milwaukee, Wisconsin, USA
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16
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David S, Jhelum P, Ryan F, Jeong SY, Kroner A. Dysregulation of Iron Homeostasis in the Central Nervous System and the Role of Ferroptosis in Neurodegenerative Disorders. Antioxid Redox Signal 2022; 37:150-170. [PMID: 34569265 DOI: 10.1089/ars.2021.0218] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Significance: Iron accumulation occurs in the central nervous system (CNS) in a variety of neurological conditions as diverse as spinal cord injury, stroke, multiple sclerosis, Parkinson's disease, and others. Iron is a redox-active metal that gives rise to damaging free radicals if its intracellular levels are not controlled or if it is not properly sequestered within cells. The accumulation of iron occurs due to dysregulation of mechanisms that control cellular iron homeostasis. Recent Advances: The molecular mechanisms that regulate cellular iron homeostasis have been revealed in much detail in the past three decades, and new advances continue to be made. Understanding which aspects of iron homeostasis are dysregulated in different conditions will provide insights into the causes of iron accumulation and iron-mediated tissue damage. Recent advances in iron-dependent lipid peroxidation leading to cell death, called ferroptosis, has provided useful insights that are highly relevant for the lipid-rich environment of the CNS. Critical Issues: This review examines the mechanisms that control normal cellular iron homeostasis, the dysregulation of these mechanisms in neurological disorders, and more recent work on how iron can induce tissue damage via ferroptosis. Future Directions: Quick and reliable tests are needed to determine if and when ferroptosis contributes to the pathogenesis of neurological disorders. In addition, there is need to develop better druggable agents to scavenge lipid radicals and reduce CNS damage for neurological conditions for which there are currently few effective treatments. Antioxid. Redox Signal. 37, 150-170.
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Affiliation(s)
- Samuel David
- Centre for Research in Neuroscience, The Research Institute of the McGill University Health Centre, Montreal, Canada
| | - Priya Jhelum
- Centre for Research in Neuroscience, The Research Institute of the McGill University Health Centre, Montreal, Canada
| | - Fari Ryan
- Centre for Research in Neuroscience, The Research Institute of the McGill University Health Centre, Montreal, Canada
| | - Suh Young Jeong
- Department of Molecular & Medical Genetics, Oregon Health & Science University, Portland, Oregon, USA
| | - Antje Kroner
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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17
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Acetyl-11-keto-β-boswellic acid improves clinical symptoms through modulation of Nrf2 and NF-κB pathways in SJL/J mouse model of experimental autoimmune encephalomyelitis. Int Immunopharmacol 2022; 107:108703. [DOI: 10.1016/j.intimp.2022.108703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/03/2022] [Accepted: 03/11/2022] [Indexed: 12/30/2022]
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18
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Pashaei S, Yarani R, Mohammadi P, Emami Aleagha MS. The potential roles of amino acids and their major derivatives in the management of multiple sclerosis. Amino Acids 2022; 54:841-858. [PMID: 35471671 DOI: 10.1007/s00726-022-03162-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 04/05/2022] [Indexed: 11/29/2022]
Abstract
Recently, we reviewed the important role of carbohydrates and lipids metabolism in different clinical aspects of multiple sclerosis (MS) disease. In the current paper, we aimed to review the contribution of amino acids and their major derivatives to different clinical outcomes of the disease, including etiology, pathogenesis, diagnosis, prognosis, and treatment. In this line, Thr (threonine), Phe (phenylalanine), Glu (glutamate), Trp (tryptophan), and Sero (serotonin) are the main examples of biomolecules that have been suggested for MS therapy. It has been concluded that different amino acids and their derivatives might be considered prominent tools for the clinical management of MS disease.
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Affiliation(s)
- Somayeh Pashaei
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Sorkhe-Ligeh Street, Kermanshah, Iran
| | - Reza Yarani
- Translational Type 1 Diabetes Biology, Department of Clinical Research, Steno Diabetes Center Copenhagen, Copenhagen, Denmark.,Interventional Regenerative Medicine and Imaging Laboratory, Department of Radiology, Stanford University School of Medicine, Palo Alto, CA, 94304, USA
| | - Pantea Mohammadi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Sajad Emami Aleagha
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Sorkhe-Ligeh Street, Kermanshah, Iran.
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19
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Förster M, Nelke C, Räuber S, Lassmann H, Ruck T, Sormani MP, Signori A, Hartung HP, Küry P, Meuth SG, Kremer D. Nitrosative Stress Molecules in Multiple Sclerosis: A Meta-Analysis. Biomedicines 2021; 9:biomedicines9121899. [PMID: 34944714 PMCID: PMC8698769 DOI: 10.3390/biomedicines9121899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/03/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022] Open
Abstract
Multiple sclerosis (MS) is an immune-mediated disease of the central nervous system of unknown etiology. As it is still a diagnosis of exclusion, there is an urgent need for biomarkers supporting its diagnosis. Increasing evidence suggests that nitrosative stress may play a pivotal role in the pathogenesis of MS. However, previous reports supporting the role of nitrosative stress molecules as disease biomarkers are inconsistent overall. We therefore systematically analyzed the existing literature to compare the serum and cerebrospinal fluid (CSF) levels of nitrite/nitrate in MS patients with those in patients with noninflammatory other neurological diseases (NIOND) and healthy controls (HC), respectively. We searched the PubMed database and included original articles investigating nitrite/nitrate levels in MS patients and NIOND patients or HC based on predefined selection criteria. Effect sizes were estimated by the standardized mean difference using a random effects model. Our results suggest that MS is associated with higher nitrite/nitrate levels within the CSF compared with patients with NIOND (SMD of 1.51; 95% CI: 0.72, 2.30; p = 0.0008). Likewise, nitrite/nitrate in the CSF of MS patients trends towards increased levels compared with those of HC but does not reach statistical significance (SMD of 3.35; 95% CI: −0.48, 7.19; p = 0.07). Measurement of nitrite/nitrate in the CSF might be a valuable tool facilitating the differentiation of MS and NIOND. Further studies with more homogeneous study criteria are needed to corroborate this hypothesis.
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Affiliation(s)
- Moritz Förster
- Department of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (M.F.); (C.N.); (S.R.); (T.R.); (H.-P.H.); (P.K.); (S.G.M.)
| | - Christopher Nelke
- Department of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (M.F.); (C.N.); (S.R.); (T.R.); (H.-P.H.); (P.K.); (S.G.M.)
| | - Saskia Räuber
- Department of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (M.F.); (C.N.); (S.R.); (T.R.); (H.-P.H.); (P.K.); (S.G.M.)
| | - Hans Lassmann
- Department of Neuroimmunology, Center for Brain Research, Medical University of Vienna, 1090 Vienna, Austria;
| | - Tobias Ruck
- Department of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (M.F.); (C.N.); (S.R.); (T.R.); (H.-P.H.); (P.K.); (S.G.M.)
| | - Maria Pia Sormani
- Department of Health Sciences, University of Genoa, 16121 Genoa, Italy; (M.P.S.); (A.S.)
- IRCCS Ospedale Policlinico San Martino, 16121 Genoa, Italy
| | - Alessio Signori
- Department of Health Sciences, University of Genoa, 16121 Genoa, Italy; (M.P.S.); (A.S.)
| | - Hans-Peter Hartung
- Department of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (M.F.); (C.N.); (S.R.); (T.R.); (H.-P.H.); (P.K.); (S.G.M.)
- Brain and Mind Center, University of Sydney, Sydney 2006, Australia
- Department of Neurology, Medical University of Vienna, 1090 Vienna, Austria
- Department of Neurology, Palacky University Olomouc, 77900 Olomouc, Czech Republic
| | - Patrick Küry
- Department of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (M.F.); (C.N.); (S.R.); (T.R.); (H.-P.H.); (P.K.); (S.G.M.)
| | - Sven G. Meuth
- Department of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (M.F.); (C.N.); (S.R.); (T.R.); (H.-P.H.); (P.K.); (S.G.M.)
| | - David Kremer
- Department of Neurology, Medical Faculty, Heinrich Heine University, 40225 Düsseldorf, Germany; (M.F.); (C.N.); (S.R.); (T.R.); (H.-P.H.); (P.K.); (S.G.M.)
- Correspondence: ; Tel.: +49-(0)2-1181-08084
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20
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Cioffi F, Adam RHI, Bansal R, Broersen K. A Review of Oxidative Stress Products and Related Genes in Early Alzheimer's Disease. J Alzheimers Dis 2021; 83:977-1001. [PMID: 34420962 PMCID: PMC8543250 DOI: 10.3233/jad-210497] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oxidative stress is associated with the progression of Alzheimer’s disease (AD). Reactive oxygen species can modify lipids, DNA, RNA, and proteins in the brain. The products of their peroxidation and oxidation are readily detectable at incipient stages of disease. Based on these oxidation products, various biomarker-based strategies have been developed to identify oxidative stress levels in AD. Known oxidative stress-related biomarkers include lipid peroxidation products F2-isoprostanes, as well as malondialdehyde and 4-hydroxynonenal which both conjugate to specific amino acids to modify proteins, and DNA or RNA oxidation products 8-hydroxy-2’-deoxyguanosine (8-OHdG) and 8-hydroxyguanosine (8-OHG), respectively. The inducible enzyme heme oxygenase type 1 (HO-1) is found to be upregulated in response to oxidative stress-related events in the AD brain. While these global biomarkers for oxidative stress are associated with early-stage AD, they generally poorly differentiate from other neurodegenerative disorders that also coincide with oxidative stress. Redox proteomics approaches provided specificity of oxidative stress-associated biomarkers to AD pathology by the identification of oxidatively damaged pathology-specific proteins. In this review, we discuss the potential combined diagnostic value of these reported biomarkers in the context of AD and discuss eight oxidative stress-related mRNA biomarkers in AD that we newly identified using a transcriptomics approach. We review these genes in the context of their reported involvement in oxidative stress regulation and specificity for AD. Further research is warranted to establish the protein levels and their functionalities as well as the molecular mechanisms by which these potential biomarkers are involved in regulation of oxidative stress levels and their potential for determination of oxidative stress and disease status of AD patients.
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Affiliation(s)
- Federica Cioffi
- Department of Nanobiophysics, Technical Medical Centre, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Rayan Hassan Ibrahim Adam
- Department of Nanobiophysics, Technical Medical Centre, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Ruchi Bansal
- Department of Medical Cell Biophysics, Technical Medical Centre, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands.,Department of Pharmacokinetics, Toxicology, and Targeting, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Kerensa Broersen
- Department of Applied Stem Cell Technologies, Technical Medical Centre, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
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21
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Yan J, Kuzhiumparambil U, Bandodkar S, Dale RC, Fu S. Cerebrospinal fluid metabolomics: detection of neuroinflammation in human central nervous system disease. Clin Transl Immunology 2021; 10:e1318. [PMID: 34386234 PMCID: PMC8343457 DOI: 10.1002/cti2.1318] [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] [Received: 10/21/2020] [Revised: 04/26/2021] [Accepted: 07/06/2021] [Indexed: 12/15/2022] Open
Abstract
The high morbidity and mortality of neuroinflammatory diseases drives significant interest in understanding the underlying mechanisms involved in the innate and adaptive immune response of the central nervous system (CNS). Diagnostic biomarkers are important to define treatable neuroinflammation. Metabolomics is a rapidly evolving research area offering novel insights into metabolic pathways, and elucidation of reliable metabolites as biomarkers for diseases. This review focuses on the emerging literature regarding the detection of neuroinflammation using cerebrospinal fluid (CSF) metabolomics in human cohort studies. Studies of classic neuroinflammatory disorders such as encephalitis, CNS infection and multiple sclerosis confirm the utility of CSF metabolomics. Additionally, studies in neurodegeneration and neuropsychiatry support the emerging potential of CSF metabolomics to detect neuroinflammation in common CNS diseases such as Alzheimer's disease and depression. We demonstrate metabolites in the tryptophan-kynurenine pathway, nitric oxide pathway, neopterin and major lipid species show moderately consistent ability to differentiate patients with neuroinflammation from controls. Integration of CSF metabolomics into clinical practice is warranted to improve recognition and treatment of neuroinflammation.
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Affiliation(s)
- Jingya Yan
- Centre for Forensic ScienceUniversity of Technology SydneySydneyNSWAustralia
| | | | - Sushil Bandodkar
- Department of Clinical BiochemistryThe Children's Hospital at WestmeadSydneyNSWAustralia
- Clinical SchoolThe Children's Hospital at WestmeadFaculty of Medicine and HealthUniversity of SydneySydneyNSWAustralia
| | - Russell C Dale
- Clinical SchoolThe Children's Hospital at WestmeadFaculty of Medicine and HealthUniversity of SydneySydneyNSWAustralia
| | - Shanlin Fu
- Centre for Forensic ScienceUniversity of Technology SydneySydneyNSWAustralia
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Ozben S, Kucuksayan E, Koseoglu M, Erel O, Neselioglu S, Ozben T. Plasma thiol/disulphide homeostasis changes in patients with relapsing-remitting multiple sclerosis. Int J Clin Pract 2021; 75:e14241. [PMID: 33891773 DOI: 10.1111/ijcp.14241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 04/16/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Multiple sclerosis (MS) is a neuroinflammatory disease and inflammation and oxidative stress play important roles in its pathology. Thiol/disulphide homeostasis (TDH) is a special oxidative stress biomarker that has been found to be affected in several disorders including MS. There is no study demonstrating the effects of attack status of the relapsing-remitting multiple sclerosis (RRMS) patients on TDH levels. Our aim was to determine TDH levels in three different periods of RRMS patients and healthy individuals. METHODS The study was carried out in 29 patients with RRMS without a prior attack in the last twelve months (MS Control), 21 RRMS patients having a clinical acute attack within the last week (MS relapse), 12 of 21 MS relapse patients one month after the onset of attack and following 1000 mg methylprednisolone for 7 days (MS Remission) and 30 age- and sex-matched healthy individuals. TDH status was determined using an automated spectrophotometric analysis method. TDH levels in all patient groups and control subjects were compared with each other. RESULTS The lowest native thiol, total thiol levels and native thiol/total thiol ratio were found in the MS relapse patients in comparison to the MS control, MS remission groups and healthy controls. In contrast, disulphide levels, disulphide/native thiol and disulphide/total thiol ratios were highest in the MS relapse group compared to the other patient groups and healthy subjects. CONCLUSION Our findings indicate that increased oxidative stress in RRMS patients is reflected with decreased native and total thiol and increased disulphide levels. Since the formation of disulphide bonds is reversible, the progression of RRMS involving abnormal TDH may be controlled, converting disulphides to thiols. So, we suggest determining the dynamic TDH status as a novel and special biomarker in the diagnosis and prognosis of the RRMS patients.
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Affiliation(s)
- Serkan Ozben
- Department of Neurology, Antalya Training and Research Hospital, Antalya, Turkey
| | - Ertan Kucuksayan
- Department of Medical Biochemistry, Medical Faculty, Alanya Alaaddin Keykubat University (ALKU), Alanya, Antalya, Turkey
| | - Mesrure Koseoglu
- Department of Neurology, Bakirkoy Psychiatry and Neurology Research and Training Hospital, Istanbul, Turkey
| | - Ozcan Erel
- Department of Biochemistry, Medical Faculty, Yildirim Beyazit University, Ankara, Turkey
| | - Salim Neselioglu
- Department of Biochemistry, Medical Faculty, Yildirim Beyazit University, Ankara, Turkey
| | - Tomris Ozben
- Department of Biochemistry, Medical Faculty, Akdeniz University, Antalya, Turkey
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Shahrampour S, Heholt J, Wang A, Vedaei F, Mohamed FB, Alizadeh M, Wang Z, Zabrecky G, Wintering N, Bazzan AJ, Leist TP, Monti DA, Newberg AB. N-acetyl cysteine administration affects cerebral blood flow as measured by arterial spin labeling MRI in patients with multiple sclerosis. Heliyon 2021; 7:e07615. [PMID: 34377857 PMCID: PMC8327674 DOI: 10.1016/j.heliyon.2021.e07615] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/23/2021] [Accepted: 07/14/2021] [Indexed: 10/26/2022] Open
Abstract
BACKGROUND The purpose of this study was to explore if administration of N-acetyl-cysteine (NAC) in patients with multiple sclerosis (MS) resulted in altered cerebral blood flow (CBF) based on Arterial Spin Labeling (ASL) magnetic resonance imaging (MRI). METHODS Twenty-three patients with mild to moderate MS, (17 relapsing remitting and 6 primary progressive) were randomized to either NAC plus standard of care (N = 11), or standard of care only (N = 12). The experimental group received NAC intravenously (50 mg/kg) once per week and orally (500mg 2x/day) the other six days. Patients in both groups were evaluated initially and after 2 months (of receiving the NAC or waitlist control) with ASL MRI to measure CBF. Clinical symptom questionnaires were also completed at both time points. RESULTS The CBF data showed significant differences in several brain regions including the pons, midbrain, left temporal and frontal lobe, left thalamus, right middle frontal lobe and right temporal/hippocampus (p < 0.001) in the MS group after treatment with NAC, when compared to the control group. Self-reported scores related to cognition and attention were also significantly improved in the NAC group as compared to the control group. CONCLUSIONS The results of this study suggest that NAC administration alters resting CBF in MS patients, and this is associated with qualitative improvements in cognition and attention. Given these findings, large scale efficacy studies will be of value to determine the potential clinical impact of NAC over the course of illness in patients with MS, as well as the most effective dosages and differential effects across subpopulations.
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Affiliation(s)
- Shiva Shahrampour
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Justin Heholt
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Andrew Wang
- Charles E. Schmidt College of Medicine, Marcus Institute of Integrative Health at FAU Medicine, Florida Atlantic University, Boca Raton, FL USA
| | - Faezeh Vedaei
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Feroze B. Mohamed
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Mahdi Alizadeh
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Ze Wang
- Department of Radiology, Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - George Zabrecky
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, USA
| | - Nancy Wintering
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, USA
| | - Anthony J. Bazzan
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, USA
| | - Thomas P. Leist
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Daniel A. Monti
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, USA
| | - Andrew B. Newberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, USA
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Redox Imbalance in CD4+ T Cells of Relapsing-Remitting Multiple Sclerosis Patients. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8860813. [PMID: 33354282 PMCID: PMC7735833 DOI: 10.1155/2020/8860813] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 11/01/2020] [Accepted: 11/15/2020] [Indexed: 11/17/2022]
Abstract
As a prevalent autoimmune disease of the central nervous system in young adults, multiple sclerosis (MS) is mediated by T cells, particularly CD4+ subsets. Given the evidence that the perturbation in reactive oxygen species (ROS) production has a pivotal role in the onset and progression of MS, its regulation through the antioxidant molecules is too important. Here, we investigated the level of the redox system components in lymphocytes and CD4+ T cells of MS patients. The study was performed on relapsing-remitting MS (RRMS) patients (n = 29) and age- and sex-matched healthy controls (n = 15). Peripheral blood mononuclear cells (PBMCs) were cultured and stimulated by anti-CD3/CD28. The level of ROS, anion superoxide (O2 -), and L-𝛾-glutamyl-Lcysteinylglycine (GSH) was measured by flow cytometry in lymphocytes/CD4+ T cells. The gene expression level of gp91phox, catalase, superoxide dismutase 1/2 (SOD), and nuclear factor-E2-related factor (Nrf2) was also measured by real-time PCR. We found that lymphocytes/CD4+ T cells of RRMS patients at the relapse phase significantly produced higher levels of ROS and O2 - compared to patients at the remission phase (P value < 0.001) and healthy controls (P value < 0.001 and P value < 0.05, respectively). Interestingly, the gene expression level of gp91phox, known as the catalytic subunit of the NADPH oxidase, significantly increased in MS patients at the relapse phase (P value < 0.05). Furthermore, the catalase expression augmented in patients at the acute phase (P value < 0.05), while an increased expression of SOD1 and Nrf2 was found in RRMS patients at relapse and remission phases (P value < 0.05). The increased production of ROS in CD4+ T cells of RRMS patients highlights the importance of amplifying antioxidant components as an efficient approach to ameliorate disease activity in MS patients.
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25
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Tanaka M, Vécsei L. Monitoring the Redox Status in Multiple Sclerosis. Biomedicines 2020; 8:E406. [PMID: 33053739 PMCID: PMC7599550 DOI: 10.3390/biomedicines8100406] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 02/07/2023] Open
Abstract
Worldwide, over 2.2 million people suffer from multiple sclerosis (MS), a multifactorial demyelinating disease of the central nervous system. MS is characterized by a wide range of motor, autonomic, and psychobehavioral symptoms, including depression, anxiety, and dementia. The blood, cerebrospinal fluid, and postmortem brain samples of MS patients provide evidence on the disturbance of reduction-oxidation (redox) homeostasis, such as the alterations of oxidative and antioxidative enzyme activities and the presence of degradation products. This review article discusses the components of redox homeostasis, including reactive chemical species, oxidative enzymes, antioxidative enzymes, and degradation products. The reactive chemical species cover frequently discussed reactive oxygen/nitrogen species, infrequently featured reactive chemicals such as sulfur, carbonyl, halogen, selenium, and nucleophilic species that potentially act as reductive, as well as pro-oxidative stressors. The antioxidative enzyme systems cover the nuclear factor erythroid-2-related factor 2 (NRF2)-Kelch-like ECH-associated protein 1 (KEAP1) signaling pathway. The NRF2 and other transcriptional factors potentially become a biomarker sensitive to the initial phase of oxidative stress. Altered components of the redox homeostasis in MS were discussed in search of a diagnostic, prognostic, predictive, and/or therapeutic biomarker. Finally, monitoring the battery of reactive chemical species, oxidative enzymes, antioxidative enzymes, and degradation products helps to evaluate the redox status of MS patients to expedite the building of personalized treatment plans for the sake of a better quality of life.
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Affiliation(s)
- Masaru Tanaka
- MTA-SZTE, Neuroscience Research Group, Semmelweis u. 6, H-6725 Szeged, Hungary;
- Department of Neurology, Interdisciplinary Excellence Centre, Faculty of Medicine, University of Szeged, Semmelweis u. 6, H-6725 Szeged, Hungary
| | - László Vécsei
- MTA-SZTE, Neuroscience Research Group, Semmelweis u. 6, H-6725 Szeged, Hungary;
- Department of Neurology, Interdisciplinary Excellence Centre, Faculty of Medicine, University of Szeged, Semmelweis u. 6, H-6725 Szeged, Hungary
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Oxidative Damage of Blood Platelets Correlates with the Degree of Psychophysical Disability in Secondary Progressive Multiple Sclerosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:2868014. [PMID: 32655763 PMCID: PMC7317616 DOI: 10.1155/2020/2868014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/22/2020] [Accepted: 05/30/2020] [Indexed: 12/11/2022]
Abstract
The results of past research studies show that platelets are one of the main sources of reactive oxygen species (ROS) and reactive nitrogen species (RNS) to be found in the course of many pathological states. The aim of this study was to determine the level of oxidative/nitrative stress biomarkers in blood platelets obtained from multiple sclerosis (MS) patients (n = 110) and to verify their correlation with the clinical parameters of the psychophysical disability of patients. The mitochondrial metabolism of platelets was assessed by measuring the intracellular production of ROS using the fluorescence method with DCFH-DA dye and by identification of changes in the mitochondrial membrane potential of platelets using the JC-1 dye. Moreover, we measured the mRNA expression for the gene encoding the cytochrome c oxidase subunit I (MTCO-1) and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) in platelets and megakaryocytes using the RT-qPCR method, as well as the concentration of NADPH oxidase (NOX-1) by the ELISA method. Our results proved an increased level of oxidative/nitrative damage of proteins (carbonyl groups, 3-nitrotyrosine) (p < 0.0001) and decreased level of -SH in MS (p < 0.0001) and also a pronounced correlation between these biomarkers and parameters assessed by the Expanded Disability Status Scale and the Beck's Depression Inventory. The application of fluorescence methods showed mitochondrial membrane potential disruption (p < 0.001) and higher production of ROS in platelets from MS compared to control (p < 0.0001). Our research has also confirmed the impairment of red-ox metabolism in MS, which was achieved by increasing the relative mRNA expression in platelets for the genes studied (2-fold increase for the MTCO-1 gene and 1.5-fold increase in GAPDH gene, p < 0.05), as well as the augmented concentration of NOX-1 compared to control (p < 0.0001). Our results indicate that the oxidative/nitrative damage of platelets is implicated in the pathophysiology of MS, which reflects the status of the disease.
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Ferreira HB, Neves B, Guerra IM, Moreira A, Melo T, Paiva A, Domingues MR. An overview of lipidomic analysis in different human matrices of multiple sclerosis. Mult Scler Relat Disord 2020; 44:102189. [PMID: 32516740 DOI: 10.1016/j.msard.2020.102189] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 02/06/2023]
Abstract
Multiple sclerosis is a chronic inflammatory and neurodegenerative disease of the central nervous system, and it is one of the most common neurological cause of disability in young adults. It is known that several factors contribute to increase the risk of development and pathogenesis of multiple sclerosis, nonetheless, but the true etiology of this pathology remains unknown. Similar to other inflammatory diseases, oxidative stress and lipid peroxidation are also associated to multiple sclerosis. Alterations in the lipid profile seem to be a hallmark of this pathology which can contribute to the dysregulation of lipid homeostasis and lipid metabolism in multiple sclerosis. Lipidomic studies analysed in this review clearly demonstrate the role of lipids in inflammatory processes, in immunity, and in the onset and development of multiple sclerosis. Several investigations reported alterations of some molecular lipid species, in particular, with decrease of fatty acids (FA) 18:2 and 20:4 and total polyunsaturated FA, with compensatory increases of saturated FA with shorter carbon chains. Oxidized phospholipids were reported in few studies as well. Also, it was shown that clinical lipidomics has potential as a tool to aid both in multiple sclerosis diagnosis and therapeutics by allowing a detailed lipidome profiling of the patients suffering with this disease.
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Affiliation(s)
- Helena Beatriz Ferreira
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Bruna Neves
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Inês M Guerra
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Ana Moreira
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; CICECO, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro, Portugal
| | - Tânia Melo
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro, Portugal
| | - Artur Paiva
- Unidade de Gestão Operacional em Citometria, Centro Hospitalar e Universitário de Coimbra (CHUC, Portugal); Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal.; Instituto Politécnico de Coimbra, ESTESC - Coimbra Health School, Ciências Biomédicas Laboratoriais, Portugal
| | - M Rosário Domingues
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago 3810-193 Aveiro, Portugal.
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28
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Agúndez JAG, García-Martín E, Rodríguez C, Benito-León J, Millán-Pascual J, Díaz-Sánchez M, Calleja P, Turpín-Fenoll L, Alonso-Navarro H, García-Albea E, Plaza-Nieto JF, Jiménez-Jiménez FJ. Endothelial nitric oxide synthase (NOS3) rs2070744 polymorphism and risk for multiple sclerosis. J Neural Transm (Vienna) 2020; 127:1167-1175. [PMID: 32449012 DOI: 10.1007/s00702-020-02211-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 05/16/2020] [Indexed: 11/28/2022]
Abstract
The possible role of oxidative stress and nitric oxide (NO) in the pathogenesis of multiple sclerosis (MS) has been suggested by several neuropathological, biochemical, and experimental data. Because the single-nucleotide polymorphism (SNP) rs2070744 in the endothelial nitric oxide synthase (eNOS or NOS3) gene (chromosome 7q36.1) showed association with the risk for MS in Iranians, we attempted to replicate the possible association between this SNP and the risk for MS in the Caucasian Spanish population. The frequencies of NOS3rs2070744 genotypes and allelic variants in 300 patients diagnosed with MS and 380 healthy controls were assessed with a TaqMan-based qPCR assay. The possible influence of the genotype frequency on age at onset of MS, the severity of MS, clinical evolutive subtypes of MS, and HLA-DRB1*1501 genotype were also analyzed. The frequencies of rs2070744 genotypes and allelic variants were not associated with the risk of developing MS and were not influenced by gender, age at onset and severity of MS, the clinical subtype of MS or the HLA-DRB1*1501 genotype. This study found a lack of association between NOS3 rs2070744 SNP and the risk for MS in Caucasian Spanish people.
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Affiliation(s)
- José A G Agúndez
- UNEx, ARADyAL Instituto de Salud Carlos III, University Institute of Molecular Pathology Biomarkers, Cáceres, Spain
| | - Elena García-Martín
- UNEx, ARADyAL Instituto de Salud Carlos III, University Institute of Molecular Pathology Biomarkers, Cáceres, Spain
| | - Christopher Rodríguez
- UNEx, ARADyAL Instituto de Salud Carlos III, University Institute of Molecular Pathology Biomarkers, Cáceres, Spain
| | - Julián Benito-León
- CIBERNED, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, Madrid, Spain.,Service of Neurology, Hospital Universitario Doce de Octubre, Madrid, Spain
| | - Jorge Millán-Pascual
- Section of Neurology, Hospital La Mancha-Centro, Alcázar de San Juan, Ciudad Real, Spain
| | - María Díaz-Sánchez
- Service of Neurology, Hospital Universitario Doce de Octubre, Madrid, Spain
| | - Patricia Calleja
- Service of Neurology, Hospital Universitario Doce de Octubre, Madrid, Spain
| | - Laura Turpín-Fenoll
- Section of Neurology, Hospital La Mancha-Centro, Alcázar de San Juan, Ciudad Real, Spain
| | - Hortensia Alonso-Navarro
- Section of Neurology, Hospital Universitario del Sureste, C/ Marroquina 14, 3º B, Arganda del Rey, 28030, Madrid, Spain
| | - Esteban García-Albea
- Department of Medicine-Neurology, Hospital "Príncipe de Asturias", Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - José Francisco Plaza-Nieto
- Section of Neurology, Hospital Universitario del Sureste, C/ Marroquina 14, 3º B, Arganda del Rey, 28030, Madrid, Spain
| | - Félix Javier Jiménez-Jiménez
- Section of Neurology, Hospital Universitario del Sureste, C/ Marroquina 14, 3º B, Arganda del Rey, 28030, Madrid, Spain. .,Department of Medicine-Neurology, Hospital "Príncipe de Asturias", Universidad de Alcalá, Alcalá de Henares, Madrid, Spain.
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Multi-Platform Characterization of Cerebrospinal Fluid and Serum Metabolome of Patients Affected by Relapsing-Remitting and Primary Progressive Multiple Sclerosis. J Clin Med 2020; 9:jcm9030863. [PMID: 32245176 PMCID: PMC7141510 DOI: 10.3390/jcm9030863] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 03/17/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Multiple sclerosis (MS) is a chronic immunemediated disease of the central nervous system with a highly variable clinical presentation and disease progression. In this study, we investigate the metabolomics profile of patients affected by relapsing–remitting MS (RRMS)and primary progressive MS (PPMS), in order to find potential biomarkers to distinguish between the two forms. Methods: Cerebrospinal Fluid CSF and blood samples of 34 patients (RRMS n = 22, PPMS n = 12) were collected. Nuclear magnetic resonance (1H-NMR) and mass spectrometry (coupled with a gas chromatography and liquid chromatography) were used as analytical techniques. Subsequently, a multivariate statistical analysis was performed; the resulting significant variables underwent U-Mann–Whitney test and correction for multiple comparisons. Receiver Operating Characteristic ROC curves were built and the pathways analysis was conducted. Results: The analysis of the serum and the CSF of the two classes, allowed the identification of several altered metabolites (lipids, biogenic amines, and amino acids). The pathways analysis indicated the following pathways were affected: Glutathione metabolism, nitrogen metabolism, glutamine–glutamate metabolism, arginine–ornithine metabolism, phenylalanine, tyrosine and tryptophan biosynthesis etc. Conclusion: The analysis allowed the identification of a set of metabolites able to classify RRMS and PPMS patients, each of whom express different patterns of metabolites in the two biofluids.
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30
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Glutamine and citrulline concentrations reflect nitric oxide synthesis in the human nervous system. NEUROLOGÍA (ENGLISH EDITION) 2020. [DOI: 10.1016/j.nrleng.2017.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Monti DA, Zabrecky G, Leist TP, Wintering N, Bazzan AJ, Zhan T, Newberg AB. N-acetyl Cysteine Administration Is Associated With Increased Cerebral Glucose Metabolism in Patients With Multiple Sclerosis: An Exploratory Study. Front Neurol 2020; 11:88. [PMID: 32117038 PMCID: PMC7033492 DOI: 10.3389/fneur.2020.00088] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/24/2020] [Indexed: 01/01/2023] Open
Abstract
Background: Multiple Sclerosis (MS) is an autoimmune disease marked by progressive neurocognitive injury. Treatment options affording neuroprotective effects remain largely experimental. The purpose of this proof of concept study was to explore the effects of N-acetyl-cysteine (NAC) on cerebral glucose metabolism (CMRGlu) and symptoms in patients with multiple sclerosis (MS). Methods: Twenty-four patients with MS were randomized to either NAC plus standard of care, or standard of care only (waitlist control). The experimental group received NAC intravenously once per week and orally the other 6 days. Patients in both groups were evaluated at baseline and after 2 months (of receiving the NAC or waitlist control period) with an integrated Position Emission Tomography (PET)/ Magnetic Resonance Imaging (MRI) scanner, using 18F Fluorodeoxyglucose (FDG) to measure cerebral glucose metabolism. Following imaging evaluation at 2 months, subjects initially attributed to the standard of care arm were eligible for treatment with NAC. Clinical and symptom questionnaires were also completed initially and after 2 months. Results: The FDG PET data showed significantly increased cerebral glucose metabolism in several brain regions including the caudate, inferior frontal gyrus, lateral temporal gyrus, and middle temporal gyrus (p < 0.05) in the MS group treated with NAC, as compared to the control group. Self-reported scores related to cognition and attention were also significantly improved in the NAC group as compared to the control group. Conclusions: The results of this study suggest that NAC positively affects cerebral glucose metabolism in MS patients, which is associated with qualitative, patient reported improvements in cognition and attention. Larger scale studies may help to determine the clinical impact of NAC on measures of functioning over the course of illness, as well as the most effective dosage and dosage regimen.
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Affiliation(s)
- Daniel A Monti
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, United States
| | - George Zabrecky
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, United States
| | - Thomas P Leist
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Nancy Wintering
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, United States
| | - Anthony J Bazzan
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, United States
| | - Tingting Zhan
- Division of Biostatistics, Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA, United States
| | - Andrew B Newberg
- Department of Integrative Medicine and Nutritional Sciences, Marcus Institute of Integrative Health, Thomas Jefferson University, Philadelphia, PA, United States.,Division of Nuclear Medicine, Department of Radiology, Thomas Jefferson University, Philadelphia, PA, United States
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Robinson RR, Dietz AK, Maroof AM, Asmis R, Forsthuber TG. The role of glial-neuronal metabolic cooperation in modulating progression of multiple sclerosis and neuropathic pain. Immunotherapy 2019; 11:129-147. [PMID: 30730270 DOI: 10.2217/imt-2018-0153] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
While the etiology of multiple sclerosis (MS) remains unclear, research from the clinic and preclinical models identified the essential role of inflammation and demyelination in the pathogenesis of MS. Current treatments focused on anti-inflammatory processes are effective against acute episodes and relapsing-remitting MS, but patients still move on to develop secondary progressive MS. MS progression is associated with activation of microglia and astrocytes, and importantly, metabolic dysfunction leading to neuronal death. Neuronal death also contributes to chronic neuropathic pain. Metabolic support of neurons by glia may play central roles in preventing progression of MS and chronic neuropathic pain. Here, we review mechanisms of metabolic cooperation between glia and neurons and outline future perspectives exploring metabolic support of neurons by glia.
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Affiliation(s)
- Rachel R Robinson
- Department of Biology, University of Texas at San Antonio, TX 78249, USA
| | - Alina K Dietz
- Department of Biology, University of Texas at San Antonio, TX 78249, USA
| | - Asif M Maroof
- Department of Biology, University of Texas at San Antonio, TX 78249, USA
| | - Reto Asmis
- Department of Internal Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
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Sonar SA, Lal G. The iNOS Activity During an Immune Response Controls the CNS Pathology in Experimental Autoimmune Encephalomyelitis. Front Immunol 2019; 10:710. [PMID: 31019516 PMCID: PMC6458273 DOI: 10.3389/fimmu.2019.00710] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/15/2019] [Indexed: 12/23/2022] Open
Abstract
Inducible nitric oxide synthase (iNOS) plays a critical role in the regulation of multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE). Previous studies have shown that iNOS plays pathogenic as well as regulatory roles in MS and EAE. However, how does iNOS alters the pathophysiology of the central nervous system (CNS) in neuronal autoimmunity is not clearly understood. In the present work, we show that treatment of mice with L-NAME, an iNOS inhibitor, during the antigen-priming phase primarily alters brain pathology, while in the subsequent effector phase of the immune response, the spinal cord is involved. Inhibition of iNOS during the priming phase of the immune response promotes the infiltration of pathogenic CD11b+F4/80-Gr-1+ cells, but there is low recruitment of regulatory CD11b+F4/80+ cells in the brain. Inhibition of iNOS during the effector phase shows similar pathogenic alterations in the spinal cord, instead of in the brain. Treatment of wild-type mice with L-NAME or mice having genetic deficiency of iNOS show lower MHC-II expression on the dendritic cells, but not on macrophages. Our data suggest that iNOS has a critical regulatory role during antigen-priming as well as in the effector phase of EAE, and inhibition iNOS at different stages of the immune response can differentially alter either the brain or spinal cord pathology. Understanding the cellular and molecular mechanisms through which iNOS functions could help to design a better strategies for the clinical management of neuroinflammation and neuronal autoimmunity.
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Morris G, Reiche EMV, Murru A, Carvalho AF, Maes M, Berk M, Puri BK. Multiple Immune-Inflammatory and Oxidative and Nitrosative Stress Pathways Explain the Frequent Presence of Depression in Multiple Sclerosis. Mol Neurobiol 2018; 55:6282-6306. [PMID: 29294244 PMCID: PMC6061180 DOI: 10.1007/s12035-017-0843-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 12/14/2017] [Indexed: 12/21/2022]
Abstract
Patients with a diagnosis of multiple sclerosis (MS) or major depressive disorder (MDD) share a wide array of biological abnormalities which are increasingly considered to play a contributory role in the pathogenesis and pathophysiology of both illnesses. Shared abnormalities include peripheral inflammation, neuroinflammation, chronic oxidative and nitrosative stress, mitochondrial dysfunction, gut dysbiosis, increased intestinal barrier permeability with bacterial translocation into the systemic circulation, neuroendocrine abnormalities and microglial pathology. Patients with MS and MDD also display a wide range of neuroimaging abnormalities and patients with MS who display symptoms of depression present with different neuroimaging profiles compared with MS patients who are depression-free. The precise details of such pathology are markedly different however. The recruitment of activated encephalitogenic Th17 T cells and subsequent bidirectional interaction leading to classically activated microglia is now considered to lie at the core of MS-specific pathology. The presence of activated microglia is common to both illnesses although the pattern of such action throughout the brain appears to be different. Upregulation of miRNAs also appears to be involved in microglial neurotoxicity and indeed T cell pathology in MS but does not appear to play a major role in MDD. It is suggested that the antidepressant lofepramine, and in particular its active metabolite desipramine, may be beneficial not only for depressive symptomatology but also for the neurological symptoms of MS. One clinical trial has been carried out thus far with, in particular, promising MRI findings.
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Affiliation(s)
- Gerwyn Morris
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Barwon Health, Geelong, Australia
| | - Edna Maria Vissoci Reiche
- Department of Pathology, Clinical Analysis, and Toxicology, Health Sciences Center, State University of Londrina, Londrina, Paraná, Brazil
| | - Andrea Murru
- Bipolar Disorders Program, Hospital Clínic Barcelona, IDIBAPS, CIBERSAM, Barcelona, Spain
| | - André F Carvalho
- Department of Clinical Medicine and Translational Psychiatry Research Group, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Michael Maes
- Department of Psychiatry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Michael Berk
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Barwon Health, Geelong, Australia
- Department of Psychiatry, Medical University Plovdiv, Plovdiv, Bulgaria
- Department of Psychiatry, Faculty of Medicine, State University of Londrina, Londrina, Brazil
- Revitalis, Waalre, The Netherlands
- Orygen - The National Centre of Excellence in Youth Mental Health, The Department of Psychiatry and the Florey Institute for Neuroscience and Mental Health, The University of Melbourne, Parkville, Australia
| | - Basant K Puri
- Department of Medicine, Imperial College London, Hammersmith Hospital, London, UK.
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Neuroprotective effect of S-allyl cysteine on an experimental model of multiple sclerosis: Antioxidant effects. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.12.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Impact of tyrosine nitration at positions Tyr307 and Tyr335 on structural dynamics of Lipoprotein-associated phospholipase A2–A therapeutically important cardiovascular biomarker for atherosclerosis. Int J Biol Macromol 2018; 107:1956-1964. [DOI: 10.1016/j.ijbiomac.2017.10.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 10/09/2017] [Accepted: 10/11/2017] [Indexed: 12/27/2022]
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Choi BY, Jung JW, Suh SW. The Emerging Role of Zinc in the Pathogenesis of Multiple Sclerosis. Int J Mol Sci 2017; 18:E2070. [PMID: 28956834 PMCID: PMC5666752 DOI: 10.3390/ijms18102070] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 09/21/2017] [Accepted: 09/25/2017] [Indexed: 12/11/2022] Open
Abstract
Our lab has previously demonstrated that multiple sclerosis-induced spinal cord white matter damage and motor deficits are mediated by the pathological disruption of zinc homeostasis. Abnormal vesicular zinc release and intracellular zinc accumulation may mediate several steps in the pathophysiological processes of multiple sclerosis (MS), such as matrix metallopeptidase 9 (MMP-9) activation, blood-brain barrier (BBB) disruption, and subsequent immune cell infiltration from peripheral systems. Oral administration of a zinc chelator decreased BBB disruption, immune cell infiltration, and spinal white matter myelin destruction. Therefore, we hypothesized that zinc released into the extracellular space during MS progression is involved in destruction of the myelin sheath in spinal cord white mater and in generation of motor deficits. To confirm our previous study, we employed zinc transporter 3 (ZnT3) knockout mice to test whether vesicular zinc depletion shows protective effects on multiple sclerosis-induced white matter damage and motor deficits. ZnT3 gene deletion profoundly reduced the daily clinical score of experimental autoimmune encephalomyelitis (EAE) by suppression of inflammation and demyelination in the spinal cord. ZnT3 gene deletion also remarkably inhibited formation of multiple sclerosis-associated aberrant synaptic zinc patches, MMP-9 activation, and BBB disruption. These two studies strongly support our hypothesis that zinc release from presynaptic terminals may be involved in multiple sclerosis pathogenesis. Further studies will no doubt continue to add mechanistic detail to this process and with luck, clarify how these observations may lead to development of novel therapeutic approaches for the treatment of multiple sclerosis.
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Affiliation(s)
- Bo Young Choi
- Department of Physiology, Hallym University, College of Medicine, Chuncheon 24252, Korea.
| | - Jong Won Jung
- Department of Physiology, Hallym University, College of Medicine, Chuncheon 24252, Korea.
| | - Sang Won Suh
- Department of Physiology, Hallym University, College of Medicine, Chuncheon 24252, Korea.
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Glutamine and citrulline concentrations reflect nitric oxide synthesis in the human nervous system. Neurologia 2017; 35:96-104. [PMID: 28867511 DOI: 10.1016/j.nrl.2017.07.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 07/02/2017] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Although citrulline is produced by nitric oxide (NO) synthase upon activation of the NMDA glutamate receptor, nitrite and nitrate (NOx) concentration is considered the best marker of NO synthesis, as citrulline is also metabolised by other enzymes. This study analyses the correlation between human cerebrospinal fluid NOx and citrulline concentrations in order to determine the extent to which citrulline reflects NO synthesis and glutamatergic neurotransmission. METHODS Participants were patients with acute neurological diseases undergoing lumbar puncture (n=240). NOx and amino acid concentrations were determined by HPLC. RESULTS NOx concentrations did not vary significantly where infection (p=0,110) or inflammation (p=0,349) were present. Multiple regression analysis showed that NOx concentration was correlated with glutamine (r=-0,319, p<0,001) and citrulline concentrations (r=0,293, p=0,005) but not with the citrulline/arginine ratio (r=-0,160, p=0,173). ANCOVA confirmed that NOx concentration was correlated with citrulline concentration (F=7,6, p=0,007) but not with the citrulline/arginine ratio (F=2,2, p=0,136), or presence of infection (F=1,8, p=0,173) or inflammation (F=1,4, p=0,227). No association was found between NOx and arginine or glutamate concentrations. CONCLUSION The results suggest that CSF citrulline concentration reflects NOx synthesis to some extent, despite the contribution of other metabolic pathways. In addition, this study shows that glutamine is an important modulator of NO synthase activity, and that arginine and glutamate are not correlated with NOx.
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Kim HH, Jeong IH, Hyun JS, Kong BS, Kim HJ, Park SJ. Metabolomic profiling of CSF in multiple sclerosis and neuromyelitis optica spectrum disorder by nuclear magnetic resonance. PLoS One 2017; 12:e0181758. [PMID: 28746356 PMCID: PMC5528902 DOI: 10.1371/journal.pone.0181758] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/06/2017] [Indexed: 11/19/2022] Open
Abstract
Multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) are inflammatory diseases of the central nervous system. Although several studies have characterized the metabolome in the cerebrospinal fluid (CSF) from MS and NMOSD patients, comparative analyses between them and between the relapse and the remission of each disease have not been performed. Both univariate and multivariate analyses were used to compare 1H-NMR spectra of CSF from MS, NMOSD, and healthy controls (HCs). The statistical analysis showed alterations of eight metabolites that were dependent on the disease. Levels of 2-hydroxybutyrate, acetone, formate, and pyroglutamate were higher and levels of acetate and glucose were lower in both MS and NMOSD. Citrate was lower in MS patients, whereas lactate was higher in only NMOSD specifically. The shared feature of metabolic changes between MS and NMOSD may be related to altered energy metabolism and fatty acid biosynthesis in the brain. Another analysis to characterize relapse and remission status showed that isoleucine and valine were down-regulated in MS relapse compared to MS remission. The other metabolites identified in the disease comparison showed the same alterations regardless of disease activity. These findings would be helpful in understanding the biological background of these diseases, and distinguishing between MS and NMOSD, as well as determining the disease activity.
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Affiliation(s)
- Hyun-Hwi Kim
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon, Korea
| | - In Hye Jeong
- Department of Neurology, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Ja-Shil Hyun
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon, Korea
| | - Byung Soo Kong
- Department of Neurology, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Ho Jin Kim
- Department of Neurology, Research Institute and Hospital of National Cancer Center, Goyang, Korea
| | - Sung Jean Park
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon, Korea
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Effect of nitric oxide to axonal degeneration in multiple sclerosis via downregulating monocarboxylate transporter 1 in oligodendrocytes. Nitric Oxide 2017; 67:75-80. [PMID: 28392448 DOI: 10.1016/j.niox.2017.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 04/05/2017] [Accepted: 04/05/2017] [Indexed: 12/21/2022]
Abstract
Multiple sclerosis (MS) is a neurodegenerative disease of the central nervous system (CNS). Axonal degeneration, one of the main pathological characteristics of MS, is affected by nitric oxide (NO). In turn, NO induces mitochondrial dysfunction of neurons and glial cells. Inadequate glucose causes monocarboxylate transporter 1 (MCT1) to transfer lactate from oligodendrocytes (OLs) to neurons, which decreases MCT1 and results in energy substrate deficit (mainly lactate) in axons. The condition gradually leads to axonal degeneration. This study proposes that NO-induced MCT1 down-regulation in OLs may be involved in the pathological process of axonal degeneration, which eventually leads to MS.
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Lubina-Dąbrowska N, Stepień A, Sulkowski G, Dąbrowska-Bouta B, Langfort J, Chalimoniuk M. Effects of IFN-β1a and IFN-β1b treatment on the expression of cytokines, inducible NOS (NOS type II), and myelin proteins in animal model of multiple sclerosis. Arch Immunol Ther Exp (Warsz) 2017; 65:325-338. [PMID: 28299403 PMCID: PMC5511332 DOI: 10.1007/s00005-017-0458-6] [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: 07/03/2016] [Accepted: 02/09/2017] [Indexed: 12/28/2022]
Abstract
The aim of this study was to investigate the effects of interferon (IFN)-β1a and IFN-β1b treatment on inflammatory factors and myelin protein levels in the brain cortex of the Lewis rat experimental autoimmune encephalomyelitis (EAE), animal model of multiple sclerosis. To induce EAE, rat were immunized with inoculums containing spinal cord guinea pig homogenized in phosphate-buffered saline and emulsified in Freund's complete adjuvant containing 110 µg of the appropriate antigen in 100 µl of an emulsion and additionally 4-mg/ml Mycobacterium tuberculosis (H37Ra). The rats were treated three times per week with subcutaneous applications of 300,000 units IFN-β1a or IFN-β1b. The treatments were started 8 days prior to immunization and continued until day 14 after immunization. The rats were killed on the 14th day of the experiment. EAE induced dramatic increase in interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-concentrations and inducible nitric oxide synthase (iNOS) expression in the brain, which closely corresponded to the course of neurological symptoms and the loss of weight. Both IFN-β1b and IFN-β1a treatments inhibited the pro-inflammatory cytokines (IL-6, IL-1β, TNF-α and IFN-γ), decreased the activation of astrocytes, increased the myelin protein level in the brain cortex, and improved the neurological status of EAE rats by different mechanisms; IFN-β1a reduced iNOS expression, at least in part, by the enhancement of IL-10, while IFN-β1b diminished IL-10 concentration and did not decrease EAE-induced iNOS expression.
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Affiliation(s)
- Natalia Lubina-Dąbrowska
- Neurology Clinic, Military Institute of Medicine, Warsaw, Poland
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106, Warsaw, Poland
| | - Adam Stepień
- Neurology Clinic, Military Institute of Medicine, Warsaw, Poland
| | - Grzegorz Sulkowski
- Laboratory of Pathoneurochemistry, Department of Neurochemistry, Mossakowski Medical Research Centre Polish Academy of Sciences, Warsaw, Poland
| | - Beata Dąbrowska-Bouta
- Laboratory of Pathoneurochemistry, Department of Neurochemistry, Mossakowski Medical Research Centre Polish Academy of Sciences, Warsaw, Poland
| | - Józef Langfort
- Department of Experimental Pharmacology, Mossakowski Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
- Department of Sports Training, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
| | - Małgorzata Chalimoniuk
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, Pawińskiego 5, 02-106, Warsaw, Poland.
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Wetzels S, Wouters K, Schalkwijk CG, Vanmierlo T, Hendriks JJA. Methylglyoxal-Derived Advanced Glycation Endproducts in Multiple Sclerosis. Int J Mol Sci 2017; 18:ijms18020421. [PMID: 28212304 PMCID: PMC5343955 DOI: 10.3390/ijms18020421] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 02/09/2017] [Accepted: 02/10/2017] [Indexed: 12/23/2022] Open
Abstract
Multiple sclerosis (MS) is a demyelinating disease of the central nervous system (CNS). The activation of inflammatory cells is crucial for the development of MS and is shown to induce intracellular glycolytic metabolism in pro-inflammatory microglia and macrophages, as well as CNS-resident astrocytes. Advanced glycation endproducts (AGEs) are stable endproducts formed by a reaction of the dicarbonyl compounds methylglyoxal (MGO) and glyoxal (GO) with amino acids in proteins, during glycolysis. This suggests that, in MS, MGO-derived AGEs are formed in glycolysis-driven cells. MGO and MGO-derived AGEs can further activate inflammatory cells by binding to the receptor for advanced glycation endproducts (RAGE). Recent studies have revealed that AGEs are increased in the plasma and brain of MS patients. Therefore, AGEs might contribute to the inflammatory status in MS. Moreover, the main detoxification system of dicarbonyl compounds, the glyoxalase system, seems to be affected in MS patients, which may contribute to high MGO-derived AGE levels. Altogether, evidence is emerging for a contributing role of AGEs in the pathology of MS. In this review, we provide an overview of the current knowledge on the involvement of AGEs in MS.
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Affiliation(s)
- Suzan Wetzels
- Department of Internal Medicine, Cardiovascular Research Institute Maastricht, Maastricht University, 6229 Maastricht, The Netherlands.
- Department of Immunology and Biochemistry, Biomedical Research Institute, Hasselt University, Martelarenlaan 42, 3500 Hasselt, Belgium.
| | - Kristiaan Wouters
- Department of Internal Medicine, Cardiovascular Research Institute Maastricht, Maastricht University, 6229 Maastricht, The Netherlands.
| | - Casper G Schalkwijk
- Department of Internal Medicine, Cardiovascular Research Institute Maastricht, Maastricht University, 6229 Maastricht, The Netherlands.
| | - Tim Vanmierlo
- Department of Immunology and Biochemistry, Biomedical Research Institute, Hasselt University, Martelarenlaan 42, 3500 Hasselt, Belgium.
| | - Jerome J A Hendriks
- Department of Immunology and Biochemistry, Biomedical Research Institute, Hasselt University, Martelarenlaan 42, 3500 Hasselt, Belgium.
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El Ayoubi NK, Khoury SJ. Blood Biomarkers as Outcome Measures in Inflammatory Neurologic Diseases. Neurotherapeutics 2017; 14:135-147. [PMID: 27757816 PMCID: PMC5233628 DOI: 10.1007/s13311-016-0486-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Multiple sclerosis (MS) is an autoimmune demyelinating disorder of the central nervous system. Only a few biomarkers are available in MS clinical practice, such as cerebrospinal fluid oligoclonal bands and immunoglobulin index, serum anti-aquaporin 4 antibodies, and serum anti-John Cunningham virus antibodies. Thus, there is a significant unmet need for biomarkers to assess prognosis, response to therapy, or potential treatment complications. Here we describe emerging biomarkers that are in development, focusing on those from peripheral blood. There are several limitations in the process of discovery and validation of a good biomarker, such as the pathophysiological complexity of MS and the technical difficulties in globally standardizing methods for sampling, processing, and conserving biological specimens. In spite of these limitations, ongoing international collaborations allow the exploration of many interesting molecules and markers to validate diagnostic, prognostic, and therapeutic-response biomarkers.
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Affiliation(s)
- Nabil K El Ayoubi
- American University of Beirut and Medical Center, Nehme and Therese Tohme Multiple Sclerosis Center, Riad El Solh, Beirut, 1107 2020, Lebanon
| | - Samia J Khoury
- American University of Beirut and Medical Center, Nehme and Therese Tohme Multiple Sclerosis Center, Riad El Solh, Beirut, 1107 2020, Lebanon.
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Nitration of MOG diminishes its encephalitogenicity depending on MHC haplotype. J Neuroimmunol 2016; 303:1-12. [PMID: 28011088 DOI: 10.1016/j.jneuroim.2016.11.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 11/21/2016] [Accepted: 11/23/2016] [Indexed: 12/12/2022]
Abstract
Post-translational modifications of autoantigens are hypothesized to affect their immunogenicity. We here report that nitration of tyrosine 40 in Myelin Oligodendrocyte Glycoprotein (MOG) abrogates its encephalitogenicity both at protein and peptide levels in the experimental autoimmune encephalomyelitis (EAE) model in H2b C57BL/6 mice. Furthermore, nitrated MOG displays inferior antigen-specific proliferation of 2D2 splenocytes in vitro. Conversely, H2q DBA1 mice remain fully susceptible to EAE induction using nitrated MOG as the dominant epitope of H2q mice is unaltered. Molecular modeling analysis of the MOG35-55/H2-IAb complex and bioinformatics peptide binding predictions indicate that the lack of T cell reactivity towards nitrated MOG can be attributed to the inability of murine H2-IAb to efficiently present the altered peptide ligand of MOG35-55 because the nitrated tyrosine 40 cannot be accommodated in the p1 anchor pocket. In conclusion we demonstrate nitration as a relevant determinant affecting T cell recognition of carrier antigen depending on MHC haplotype. Our data have implications for understanding the role of post-translationally modified antigen in autoimmunity.
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Wen J, Ariyannur PS, Ribeiro R, Tanaka M, Moffett JR, Kirmani BF, Namboodiri AMA, Zhang Y. Efficacy of N-Acetylserotonin and Melatonin in the EAE Model of Multiple Sclerosis. J Neuroimmune Pharmacol 2016; 11:763-773. [PMID: 27562847 DOI: 10.1007/s11481-016-9702-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 08/15/2016] [Indexed: 12/16/2022]
Abstract
Melatonin and N-acetylserotonin (NAS) are tryptophan metabolites that have potent anti-oxidant, anti-inflammatory and neuroprotective properties in several animal models of neurological injury and disease including multiple sclerosis (MS). The therapeutic effect of NAS has not been reported previously in experimental autoimmune encephalomyelitis (EAE), a commonly used animal model of MS. Using a MOG-peptide induced EAE mouse model we examined the effects of melatonin and NAS on clinical score, inflammatory markers, free radical generation, and sparing of axons, oligodendrocytes and myelin. We found that NAS and melatonin reduced clinical scores when administered prior to or after symptom onset. This effect was more pronounced when melatonin and NAS were administrated prior to symptom onset whereby the appearance of motor symptoms was significantly delayed. Activated microglia and CD4+ T-cells were increased in the white matter of untreated EAE mice, with a return to near control levels after melatonin or NAS treatment. The expression of the NADPH oxidase component p67phox and inducible nitric oxide synthase (iNOS) was increased in the EAE mice as compared with controls, and both drug treated groups had significant reductions in their expression. Melatonin and NAS treatment significantly reduced the loss of mature oligodendrocytes, demyelination and axonal injury. Both compounds also significantly attenuated iNOS induction and reactive oxygen species (ROS) generation in lipopolysaccharide-activated microglia in culture. Our results show for the first time the therapeutic effects of NAS and confirm previous reports on the effectiveness of melatonin in the EAE model of MS.
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Affiliation(s)
- Jie Wen
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Prasanth S Ariyannur
- Molecular Diagnostics Div., Department of Medical Oncology, Amrita Institute of Medical Sciences, Amrita University, Kochi, India
| | - Rachel Ribeiro
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Mikiei Tanaka
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - John R Moffett
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Batool F Kirmani
- Epilepsy Center, Department of Neurology, Scott and White Hospital, Texas A&M University, Temple, TX, USA
| | - Aryan M A Namboodiri
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA.
| | - Yumin Zhang
- Department of Anatomy, Physiology and Genetics, Neuroscience Program, Bldg. C, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA.
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Ibitoye R, Kemp K, Rice C, Hares K, Scolding N, Wilkins A. Oxidative stress-related biomarkers in multiple sclerosis: a review. Biomark Med 2016; 10:889-902. [PMID: 27416337 DOI: 10.2217/bmm-2016-0097] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM To provide an up-to-date review of oxidative stress biomarkers in multiple sclerosis and thus identify candidate molecules with greatest promise as biomarkers of diagnosis, disease activity or prognosis. METHOD A semi-systematic literature search using PubMed and other databases. RESULTS Nitric oxide metabolites, superoxide dismutase, catalase, glutathione reductase, inducible nitric oxide synthase, protein carbonyl, 3-nitrotyrosine, isoprostanes, malondialdehyde and products of DNA oxidation have been identified across multiple studies as having promise as diagnostic, therapeutic or prognostic markers in MS. CONCLUSION Heterogeneity of study design, particularly patient selection, limits comparability across studies. Further cohort studies are needed, and we would recommend promising markers be incorporated into future clinical trials to prospectively validate their potential.
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Affiliation(s)
- Richard Ibitoye
- Institute of Clinical Neurosciences, University of Bristol/Level 1, Learning & Research, Southmead Hospital, Southmead Road, Bristol, BS10 5NB, UK
| | - Kevin Kemp
- Institute of Clinical Neurosciences, University of Bristol/Level 1, Learning & Research, Southmead Hospital, Southmead Road, Bristol, BS10 5NB, UK
| | - Claire Rice
- Institute of Clinical Neurosciences, University of Bristol/Level 1, Learning & Research, Southmead Hospital, Southmead Road, Bristol, BS10 5NB, UK
| | - Kelly Hares
- Institute of Clinical Neurosciences, University of Bristol/Level 1, Learning & Research, Southmead Hospital, Southmead Road, Bristol, BS10 5NB, UK
| | - Neil Scolding
- Institute of Clinical Neurosciences, University of Bristol/Level 1, Learning & Research, Southmead Hospital, Southmead Road, Bristol, BS10 5NB, UK
| | - Alastair Wilkins
- Institute of Clinical Neurosciences, University of Bristol/Level 1, Learning & Research, Southmead Hospital, Southmead Road, Bristol, BS10 5NB, UK
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Yun HM, Park KR, Kim EC, Hong JT. PRDX6 controls multiple sclerosis by suppressing inflammation and blood brain barrier disruption. Oncotarget 2016; 6:20875-84. [PMID: 26327204 PMCID: PMC4673236 DOI: 10.18632/oncotarget.5205] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 08/12/2015] [Indexed: 01/08/2023] Open
Abstract
Multiple sclerosis (MS) is a complex disease with an unknown etiology and has no effective medications despite extensive research. Antioxidants suppress oxidative damages which are implicated in the pathogenesis of MS. In this study, we showed that the expression of an antioxidant protein peroxiredoxin 6 (PRDX6) is markedly increased in spinal cord of mice with experimental autoimmune encephalomyelitis (EAE) compared to other PRDXs. PRDX6 transgenic (Tg) mice displayed a significant decrease in clinical severity and attenuated demyelination in EAE compared to wide type mice. The increased PRDX6 expression in astrocytes of EAE mice and MS patients reduced MMP9 expression, fibrinogen leakage, chemokines, and free radical stress, leading to reduction in blood-brain-barrier (BBB) disruption, peripheral immune cell infiltration, and neuroinflammation. Together, these findings suggest that PRDX6 expression may represent a therapeutic way to restrict inflammation in the central nervous system and potentiate oligodendrocyte survival, and suggest a new molecule for neuroprotective therapies in MS.
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Affiliation(s)
- Hyung-Mun Yun
- Department of Maxillofacial Tissue Regeneration, School of Dentistry and Research Center for Tooth and Periodontal Regeneration (MRC), Kyung Hee University, Dongdaemun-gu, Republic of Korea
| | - Kyung-Ran Park
- Department of Maxillofacial Tissue Regeneration, School of Dentistry and Research Center for Tooth and Periodontal Regeneration (MRC), Kyung Hee University, Dongdaemun-gu, Republic of Korea
| | - Eun-Cheol Kim
- Department of Maxillofacial Tissue Regeneration, School of Dentistry and Research Center for Tooth and Periodontal Regeneration (MRC), Kyung Hee University, Dongdaemun-gu, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
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48
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Kemp K, Redondo J, Hares K, Rice C, Scolding N, Wilkins A. Oxidative injury in multiple sclerosis cerebellar grey matter. Brain Res 2016; 1642:452-460. [PMID: 27086975 DOI: 10.1016/j.brainres.2016.04.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 04/11/2016] [Accepted: 04/12/2016] [Indexed: 01/16/2023]
Abstract
Cerebellar dysfunction is a significant contributor to disability in multiple sclerosis (MS). Both white matter (WM) and grey matter (GM) injury occurs within MS cerebellum and, within GM, demyelination, inflammatory cell infiltration and neuronal injury contribute to on-going pathology. The precise nature of cerebellar GM injury is, however, unknown. Oxidative stress pathways with ultimate lipid peroxidation and cell membrane injury occur extensively in MS and the purpose of this study was to investigate these processes in MS cerebellar GM. Post-mortem human cerebellar GM from MS and control subjects was analysed immunohistochemically, followed by semi-quantitative analysis of markers of cellular injury, lipid peroxidation and anti-oxidant enzyme expression. We have shown evidence for reduction in myelin and neuronal markers in MS GM, coupled to an increase in expression of a microglial marker. We also show that the lipid peroxidation product 4-hydroxynonenal co-localises with myelin and its levels negatively correlate to myelin basic protein levels. Furthermore, superoxide dismutase (SOD1 and 2) enzymes, localised within cerebellar neurons, are up-regulated, yet the activation of subsequent enzymes responsible for the detoxification of hydrogen peroxide, catalase and glutathione peroxidase are relatively deficient. These studies provide evidence for oxidative injury in MS cerebellar GM and further help define disease mechanisms within the MS brain.
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Affiliation(s)
- Kevin Kemp
- Multiple Sclerosis and Stem Cell Group, School of Clinical Sciences, University of Bristol, Bristol BS10 5NB, UK.
| | - Juliana Redondo
- Multiple Sclerosis and Stem Cell Group, School of Clinical Sciences, University of Bristol, Bristol BS10 5NB, UK
| | - Kelly Hares
- Multiple Sclerosis and Stem Cell Group, School of Clinical Sciences, University of Bristol, Bristol BS10 5NB, UK
| | - Claire Rice
- Multiple Sclerosis and Stem Cell Group, School of Clinical Sciences, University of Bristol, Bristol BS10 5NB, UK
| | - Neil Scolding
- Multiple Sclerosis and Stem Cell Group, School of Clinical Sciences, University of Bristol, Bristol BS10 5NB, UK
| | - Alastair Wilkins
- Multiple Sclerosis and Stem Cell Group, School of Clinical Sciences, University of Bristol, Bristol BS10 5NB, UK
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49
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Abstract
Leakage of the blood-brain barrier (BBB) is a common pathological feature in multiple sclerosis (MS). Following a breach of the BBB, albumin, the most abundant protein in plasma, gains access to CNS tissue where it is exposed to an inflammatory milieu and tissue damage, e.g., demyelination. Once in the CNS, albumin can participate in protective mechanisms. For example, due to its high concentration and molecular properties, albumin becomes a target for oxidation and nitration reactions. Furthermore, albumin binds metals and heme thereby limiting their ability to produce reactive oxygen and reactive nitrogen species. Albumin also has the potential to worsen disease. Similar to pathogenic processes that occur during epilepsy, extravasated albumin could induce the expression of proinflammatory cytokines and affect the ability of astrocytes to maintain potassium homeostasis thereby possibly making neurons more vulnerable to glutamate exicitotoxicity, which is thought to be a pathogenic mechanism in MS. The albumin quotient, albumin in cerebrospinal fluid (CSF)/albumin in serum, is used as a measure of blood-CSF barrier dysfunction in MS, but it may be inaccurate since albumin levels in the CSF can be influenced by multiple factors including: 1) albumin becomes proteolytically cleaved during disease, 2) extravasated albumin is taken up by macrophages, microglia, and astrocytes, and 3) the location of BBB damage affects the entry of extravasated albumin into ventricular CSF. A discussion of the roles that albumin performs during MS is put forth.
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Affiliation(s)
- Steven M LeVine
- Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS, USA.
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50
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Fominykh V, Onufriev MV, Vorobyeva A, Brylev L, Yakovlev AA, Zakharova MN, Gulyaeva NV. Increased S-nitrosothiols are associated with spinal cord injury in multiple sclerosis. J Clin Neurosci 2016; 28:38-42. [PMID: 26778356 DOI: 10.1016/j.jocn.2015.09.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 08/30/2015] [Accepted: 09/06/2015] [Indexed: 12/15/2022]
Abstract
Multiple sclerosis (MS) is an immune-mediated disorder associated with inflammation, demyelination and axonal damage. In search of potential biomarkers of spinal cord lesions in MS related to nitric oxide metabolites, we measured total nitrite and nitrate levels, and protein-bound nitrotyrosine and S-nitrosothiol concentrations in the serum of MS patients at different stages of the disease. Sixty-eight patients and 36 healthy volunteers were included in the study. Total nitrite and nitrate levels were augmented in relapsing-remitting MS, while increased S-nitrosothiol concentrations were found both in relapsing-remitting and secondary-progressive MS. Further analysis demonstrated that S-nitrosothiol levels were selectively increased in patients with spinal cord injury. The data suggest that high S-nitrosothiol concentration may be a potential serum biomarker for spinal cord injury in MS.
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Affiliation(s)
- Vera Fominykh
- Institute of Higher Nervous Activity & Neurophysiology RAS, Department of Functional Biochemistry of the Nervous System, Butlerov Street 5A, Moscow 117485, Russia.
| | - Mikhail V Onufriev
- Institute of Higher Nervous Activity & Neurophysiology RAS, Department of Functional Biochemistry of the Nervous System, Butlerov Street 5A, Moscow 117485, Russia
| | - Anna Vorobyeva
- Research Center of Neurology Russian Academy of Medical Sciences, Neuroinfection Department, Moscow, Russia
| | - Lev Brylev
- Institute of Higher Nervous Activity & Neurophysiology RAS, Department of Functional Biochemistry of the Nervous System, Butlerov Street 5A, Moscow 117485, Russia
| | - Alexander A Yakovlev
- Institute of Higher Nervous Activity & Neurophysiology RAS, Department of Functional Biochemistry of the Nervous System, Butlerov Street 5A, Moscow 117485, Russia
| | - Maria N Zakharova
- Research Center of Neurology Russian Academy of Medical Sciences, Neuroinfection Department, Moscow, Russia
| | - Natalia V Gulyaeva
- Institute of Higher Nervous Activity & Neurophysiology RAS, Department of Functional Biochemistry of the Nervous System, Butlerov Street 5A, Moscow 117485, Russia
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