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Terracina S, Ferraguti G, Tarani L, Fanfarillo F, Tirassa P, Ralli M, Iannella G, Polimeni A, Lucarelli M, Greco A, Fiore M. Nerve Growth Factor and Autoimmune Diseases. Curr Issues Mol Biol 2023; 45:8950-8973. [PMID: 37998739 PMCID: PMC10670231 DOI: 10.3390/cimb45110562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023] Open
Abstract
NGF plays a crucial immunomodulatory role and increased levels are found in numerous tissues during autoimmune states. NGF directly modulates innate and adaptive immune responses of B and T cells and causes the release of neuropeptides and neurotransmitters controlling the immune system activation in inflamed tissues. Evidence suggests that NGF is involved in the pathogenesis of numerous immune diseases including autoimmune thyroiditis, chronic arthritis, multiple sclerosis, systemic lupus erythematosus, mastocytosis, and chronic granulomatous disease. Furthermore, as NGF levels have been linked to disease severity, it could be considered an optimal early biomarker to identify therapeutic approach efficacy. In conclusion, by gaining insights into how these molecules function and which cells they interact with, future studies can devise targeted therapies to address various neurological, immunological, and other disorders more effectively. This knowledge may pave the way for innovative treatments based on NGF manipulation aimed at improving the quality of life for individuals affected by diseases involving neurotrophins.
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Affiliation(s)
- Sergio Terracina
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Giampiero Ferraguti
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Luigi Tarani
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, 00185 Rome, Italy
| | - Francesca Fanfarillo
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Paola Tirassa
- Institute of Biochemistry and Cell Biology (IBBC-CNR), Department of Sensory Organs, Sapienza University of Rome, 00185 Rome, Italy
| | - Massimo Ralli
- Department of Sensory Organs, Sapienza University of Rome, 00185 Roma, Italy
| | - Giannicola Iannella
- Department of Sensory Organs, Sapienza University of Rome, 00185 Roma, Italy
| | - Antonella Polimeni
- Department of Odontostomatological and Maxillofacial Sciences, Sapienza University of Rome, 00185 Rome, Italy
| | - Marco Lucarelli
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
- Pasteur Institute, Cenci Bolognetti Foundation, Sapienza University of Rome, 00185 Rome, Italy
| | - Antonio Greco
- Department of Sensory Organs, Sapienza University of Rome, 00185 Roma, Italy
| | - Marco Fiore
- Institute of Biochemistry and Cell Biology (IBBC-CNR), Department of Sensory Organs, Sapienza University of Rome, 00185 Rome, Italy
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Mehmood A, Shah S, Guo RY, Haider A, Shi M, Ali H, Ali I, Ullah R, Li B. Methyl-CpG-Binding Protein 2 Emerges as a Central Player in Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders. Cell Mol Neurobiol 2023; 43:4071-4101. [PMID: 37955798 DOI: 10.1007/s10571-023-01432-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023]
Abstract
MECP2 and its product methyl-CpG binding protein 2 (MeCP2) are associated with multiple sclerosis (MS) and neuromyelitis optica spectrum disorders (NMOSD), which are inflammatory, autoimmune, and demyelinating disorders of the central nervous system (CNS). However, the mechanisms and pathways regulated by MeCP2 in immune activation in favor of MS and NMOSD are not fully understood. We summarize findings that use the binding properties of MeCP2 to identify its targets, particularly the genes recognized by MeCP2 and associated with several neurological disorders. MeCP2 regulates gene expression in neurons, immune cells and during development by modulating various mechanisms and pathways. Dysregulation of the MeCP2 signaling pathway has been associated with several disorders, including neurological and autoimmune diseases. A thorough understanding of the molecular mechanisms underlying MeCP2 function can provide new therapeutic strategies for these conditions. The nervous system is the primary system affected in MeCP2-associated disorders, and other systems may also contribute to MeCP2 action through its target genes. MeCP2 signaling pathways provide promise as potential therapeutic targets in progressive MS and NMOSD. MeCP2 not only increases susceptibility and induces anti-inflammatory responses in immune sites but also leads to a chronic increase in pro-inflammatory cytokines gene expression (IFN-γ, TNF-α, and IL-1β) and downregulates the genes involved in immune regulation (IL-10, FoxP3, and CX3CR1). MeCP2 may modulate similar mechanisms in different pathologies and suggest that treatments for MS and NMOSD disorders may be effective in treating related disorders. MeCP2 regulates gene expression in MS and NMOSD. However, dysregulation of the MeCP2 signaling pathway is implicated in these disorders. MeCP2 plays a role as a therapeutic target for MS and NMOSD and provides pathways and mechanisms that are modulated by MeCP2 in the regulation of gene expression.
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Affiliation(s)
- Arshad Mehmood
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, People's Republic of China
- Key Laboratory of Neurology of Hebei Province, Shijiazhuang, 050000, Hebei, People's Republic of China
| | - Suleman Shah
- Department of Cell Biology and Genetics, School of Basic Medical Sciences, Health Science Center, Shenzhen University, Shenzhen, China
| | - Ruo-Yi Guo
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, People's Republic of China
- Key Laboratory of Neurology of Hebei Province, Shijiazhuang, 050000, Hebei, People's Republic of China
| | - Arsalan Haider
- Key Lab of Health Psychology, Institute of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Mengya Shi
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, People's Republic of China
- Key Laboratory of Neurology of Hebei Province, Shijiazhuang, 050000, Hebei, People's Republic of China
| | - Hamid Ali
- Department of Biosciences, COMSATS University Islamabad, Park Road Tarlai Kalan, Islamabad, 44000, Pakistan
| | - Ijaz Ali
- Centre for Applied Mathematics and Bioinformatics, Gulf University for Science and Technology, Hawally, 32093, Kuwait
| | - Riaz Ullah
- Medicinal Aromatic and Poisonous Plants Research Center, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Bin Li
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, People's Republic of China.
- Key Laboratory of Neurology of Hebei Province, Shijiazhuang, 050000, Hebei, People's Republic of China.
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Tonev D, Momchilova A. Therapeutic Plasma Exchange and Multiple Sclerosis Dysregulations: Focus on the Removal of Pathogenic Circulatory Factors and Altering Nerve Growth Factor and Sphingosine-1-Phosphate Plasma Levels. Curr Issues Mol Biol 2023; 45:7749-7774. [PMID: 37886933 PMCID: PMC10605592 DOI: 10.3390/cimb45100489] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/28/2023] Open
Abstract
Multiple sclerosis (MS) is predominantly an immune-mediated disease of the central nervous system (CNS) of unknown etiology with a possible genetic predisposition and effect of certain environmental factors. It is generally accepted that the disease begins with an autoimmune inflammatory reaction targeting oligodendrocytes followed by a rapid depletion of their regenerative capacity with subsequent permanent neurodegenerative changes and disability. Recent research highlights the central role of B lymphocytes and the corresponding IgG and IgM autoantibodies in newly forming MS lesions. Thus, their removal along with the modulation of certain bioactive molecules to improve neuroprotection using therapeutic plasma exchange (TPE) becomes of utmost importance. Recently, it has been proposed to determine the levels and precise effects of both beneficial and harmful components in the serum of MS patients undergoing TPE to serve as markers for appropriate TPE protocols. In this review we discuss some relevant examples, focusing on the removal of pathogenic circulating factors and altering the plasma levels of nerve growth factor and sphingosine-1-phosphate by TPE. Altered plasma levels of the reviewed molecular compounds in response to TPE reflect a successful reduction of the pro-inflammatory burden at the expense of an increase in anti-inflammatory potential in the circulatory and CNS compartments.
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Affiliation(s)
- Dimitar Tonev
- Department of Anesthesiology and Intensive Care, University Hospital “Tzaritza Yoanna—ISUL”, Medical University of Sofia, 1527 Sofia, Bulgaria
| | - Albena Momchilova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Science, 1113 Sofia, Bulgaria;
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Patra P, Rani A, Sharma N, Mukherjee C, Jha HC. Unraveling the Connection of Epstein-Barr Virus and Its Glycoprotein M 146-157 Peptide with Neurological Ailments. ACS Chem Neurosci 2023. [PMID: 37290090 DOI: 10.1021/acschemneuro.3c00231] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
Abstract
Epstein-Barr virus (EBV) is known to be associated with several cancers along with neurological modalities like Alzheimer's disease (AD) and multiple sclerosis (MS). Previous study from our group revealed that a 12 amino acid peptide fragment (146SYKHVFLSAFVY157) of EBV glycoprotein M (gM) exhibits amyloid-like self-aggregative properties. In the current study, we have investigated its effect on Aβ42 aggregation along with its effect on neural cell immunology and disease markers. EBV virion was also considered for the above-mentioned investigation. An increase in the aggregation of Aβ42 peptide was observed upon incubation with gM146-157. Further, the exposure of EBV and gM146-157 onto neuronal cells indicated the upregulation of inflammatory molecules like IL-1β, IL-6, TNF-α, and TGF-β that suggested neuroinflammation. Besides, host cell factors like mitochondrial potential and calcium ion signaling play a crucial role in cellular homeostasis and alterations in these factors aid in neurodegeneration. Changes in mitochondrial membrane potential manifested a decrease while elevation in the level of total Ca2+ ions was observed. Amelioration of Ca2+ ions triggers excitotoxicity in neurons. Subsequently, neurological disease-associated genes APP, ApoE4, and MBP were found to be increased at the protein level. Additionally, demyelination of neurons is a hallmark of MS and the myelin sheath consists of ∼70% of lipid/cholesterol-associated moieties. Hereby, genes associated with cholesterol metabolism indicated changes at the mRNA level. Enhanced expression of neurotropic factors like NGF and BDNF was discerned postexposure to EBV and gM146-157. Altogether, this study delineates a direct connection of EBV and its peptide gM146-157 with neurological illnesses.
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Affiliation(s)
- Priyanka Patra
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore 453552, Madhya Pradesh, India
| | - Annu Rani
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore 453552, Madhya Pradesh, India
| | - Neha Sharma
- Department of Atomic Energy, Optical Coatings Laboratory, High Energy Lasers & Optics Section, Laser Technology Division, Laser Group, Raja Ramanna Centre for Advanced Technology, Indore 452013, Madhya Pradesh, India
| | - Chandrachur Mukherjee
- Department of Atomic Energy, Optical Coatings Laboratory, High Energy Lasers & Optics Section, Laser Technology Division, Laser Group, Raja Ramanna Centre for Advanced Technology, Indore 452013, Madhya Pradesh, India
| | - Hem Chandra Jha
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore 453552, Madhya Pradesh, India
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Chhabra S, Mehan S. Matrine exerts its neuroprotective effects by modulating multiple neuronal pathways. Metab Brain Dis 2023; 38:1471-1499. [PMID: 37103719 DOI: 10.1007/s11011-023-01214-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/10/2023] [Indexed: 04/28/2023]
Abstract
Recent evidence suggests that misfolding, clumping, and accumulation of proteins in the brain may be common causes and pathogenic mechanism for several neurological illnesses. This causes neuronal structural deterioration and disruption of neural circuits. Research from various fields supports this idea, indicating that developing a single treatment for several severe conditions might be possible. Phytochemicals from medicinal plants play an essential part in maintaining the brain's chemical equilibrium by affecting the proximity of neurons. Matrine is a tetracyclo-quinolizidine alkaloid derived from the plant Sophora flavescens Aiton. Matrine has been shown to have a therapeutic effect on Multiple Sclerosis, Alzheimer's disease, and various other neurological disorders. Numerous studies have demonstrated that matrine protects neurons by altering multiple signalling pathways and crossing the blood-brain barrier. As a result, matrine may have therapeutic utility in the treatment of a variety of neurocomplications. This work aims to serve as a foundation for future clinical research by reviewing the current state of matrine as a neuroprotective agent and its potential therapeutic application in treating neurodegenerative and neuropsychiatric illnesses. Future research will answer many concerns and lead to fascinating discoveries that could impact other aspects of matrine.
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Affiliation(s)
- Swesha Chhabra
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Sidharth Mehan
- Division of Neuroscience, Department of Pharmacology, ISF College of Pharmacy, Moga, 142001, Punjab, India.
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Haridy SFA, Shahin NN, Shabayek MI, Selim MM, Abdelhafez MA, Motawi TK. Diagnostic and prognostic value of the RUNXOR/RUNX1 axis in multiple sclerosis. Neurobiol Dis 2023; 178:106032. [PMID: 36754216 DOI: 10.1016/j.nbd.2023.106032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
The runt-related transcription factor-1 (RUNX1) gene with its lncRNA RUNXOR are recently becoming a research focus in various diseases, specifically immune-related diseases as they are implicated in multiple pathways. Interestingly, their role in multiple sclerosis (MS) remains unstudied. The present study explored the role of RUNXOR/RUNX1 in the development and progression of MS and investigated their possible mechanism of action. We measured the serum expression levels of lncRNA RUNXOR, as well as RUNX1, microtubule associated protein 2 (MAP2), nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) mRNAs in 30 healthy controls and 120 MS patients subdivided into 4 groups: 30 clinically isolated syndrome patients, 30 relapsing-remitting MS (RRMS) patients in relapse, 30 RRMS patients in remission and 30 secondary progressive MS patients. Additionally, we measured the serum protein levels of RUNX1, MAP2, NGF, BDNF and interleukin-10 (IL-10). All measured RNA expression levels were markedly downregulated and, consequently, the protein levels of RUNX1, MAP2, NGF, BDNF and IL-10 were significantly decreased in MS patients compared to healthy controls. Moreover, the levels of the measured parameters varied significantly within the MS groups. According to receiver-operating-characteristic (ROC) curve and logistic regression analyses, lncRNA RUNXOR, RUNX1 mRNA and its protein levels were predictors of disease progression, in addition to RUNX1 mRNA exhibiting a diagnostic potential. Altogether, this study suggests the implication of the RUNXOR-RUNX1 axis in MS development, progression, and increased MS-related disability, and highlights the potential utility of the studied parameters as promising diagnostic/prognostic biomarkers for MS.
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Baldassarro VA, Cescatti M, Rocco ML, Aloe L, Lorenzini L, Giardino L, Calzà L. Nerve growth factor promotes differentiation and protects the oligodendrocyte precursor cells from in vitro hypoxia/ischemia. Front Neurosci 2023; 17:1111170. [PMID: 36875668 PMCID: PMC9978228 DOI: 10.3389/fnins.2023.1111170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/02/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Nerve growth factor (NGF) is a pleiotropic molecule acting on different cell types in physiological and pathological conditions. However, the effect of NGF on the survival, differentiation and maturation of oligodendrocyte precursor cells (OPCs) and oligodendrocytes (OLs), the cells responsible for myelin formation, turnover, and repair in the central nervous system (CNS), is still poorly understood and heavily debated. Methods Here we used mixed neural stem cell (NSC)-derived OPC/astrocyte cultures to clarify the role of NGF throughout the entire process of OL differentiation and investigate its putative role in OPC protection under pathological conditions. Results We first showed that the gene expression of all the neurotrophin receptors (TrkA, TrkB, TrkC, and p75NTR ) dynamically changes during the differentiation. However, only TrkA and p75NTR expression depends on T3-differentiation induction, as Ngf gene expression induction and protein secretion in the culture medium. Moreover, in the mixed culture, astrocytes are the main producer of NGF protein, and OPCs express both TrkA and p75NTR . NGF treatment increases the percentage of mature OLs, while NGF blocking by neutralizing antibody and TRKA antagonist impairs OPC differentiation. Moreover, both NGF exposure and astrocyte-conditioned medium protect OPCs exposed to oxygenglucose deprivation (OGD) from cell death and NGF induces an increase of AKT/pAKT levels in OPCs nuclei by TRKA activation. Discussion This study demonstrated that NGF is implicated in OPC differentiation, maturation, and protection in the presence of metabolic challenges, also suggesting implications for the treatment of demyelinating lesions and diseases.
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Affiliation(s)
| | | | | | | | - Luca Lorenzini
- Department of Veterinary Medical Science, University of Bologna, Bologna, Italy
| | - Luciana Giardino
- Department of Veterinary Medical Science, University of Bologna, Bologna, Italy.,IRET Foundation, Bologna, Italy
| | - Laura Calzà
- Health Science and Technologies - Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna, Bologna, Italy.,Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.,Montecatone Rehabilitation Institute, Bologna, Italy
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Li ZQ, Li TX, Tian M, Ren ZS, Yuan CY, Yang RK, Shi SJ, Li H, Kou ZZ. Glial cells and neurologic autoimmune disorders. Front Cell Neurosci 2022; 16:1028653. [PMID: 36385950 PMCID: PMC9644207 DOI: 10.3389/fncel.2022.1028653] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 10/03/2022] [Indexed: 12/01/2023] Open
Abstract
Neurologic autoimmune disorders affect people's physical and mental health seriously. Glial cells, as an important part of the nervous system, play a vital role in the occurrence of neurologic autoimmune disorders. Glial cells can be hyperactivated in the presence of autoantibodies or pathological changes, to influence neurologic autoimmune disorders. This review is mainly focused on the roles of glial cells in neurologic autoimmune disorders and the influence of autoantibodies produced by autoimmune disorders on glial cells. We speculate that the possibility of glial cells might be a novel way for the investigation and therapy of neurologic autoimmune disorders.
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Affiliation(s)
| | | | | | | | | | | | | | - Hui Li
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, The Fourth Military Medical University, Xi’an, China
| | - Zhen-Zhen Kou
- Department of Anatomy, Histology and Embryology, K. K. Leung Brain Research Centre, The Fourth Military Medical University, Xi’an, China
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Abdolahi S, Zare-Chahoki A, Noorbakhsh F, Gorji A. A Review of Molecular Interplay between Neurotrophins and miRNAs in Neuropsychological Disorders. Mol Neurobiol 2022; 59:6260-6280. [PMID: 35916975 PMCID: PMC9463196 DOI: 10.1007/s12035-022-02966-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/17/2022] [Indexed: 01/10/2023]
Abstract
Various neurotrophins (NTs), including nerve growth factor, brain-derived neurotrophic factor, neurotrophin-3, and neurotrophin-4, promote cellular differentiation, survival, and maintenance, as well as synaptic plasticity, in the peripheral and central nervous system. The function of microRNAs (miRNAs) and other small non-coding RNAs, as regulators of gene expression, is pivotal for the appropriate control of cell growth and differentiation. There are positive and negative loops between NTs and miRNAs, which exert modulatory effects on different signaling pathways. The interplay between NTs and miRNAs plays a crucial role in the regulation of several physiological and pathological brain procedures. Emerging evidence suggests the diagnostic and therapeutic roles of the interactions between NTs and miRNAs in several neuropsychological disorders, including epilepsy, multiple sclerosis, Alzheimer's disease, Huntington's disease, amyotrophic lateral sclerosis, schizophrenia, anxiety disorders, depression, post-traumatic stress disorder, bipolar disorder, and drug abuse. Here, we review current data regarding the regulatory interactions between NTs and miRNAs in neuropsychological disorders, for which novel diagnostic and/or therapeutic strategies are emerging. Targeting NTs-miRNAs interactions for diagnostic or therapeutic approaches needs to be validated by future clinical studies.
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Affiliation(s)
- Sara Abdolahi
- Shefa Neuroscience Research Center, Khatam Alanbia Hospital, Tehran, Iran
| | - Ameneh Zare-Chahoki
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Farshid Noorbakhsh
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Gorji
- Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Neurosurgery, Westfälische Wilhelms-Universität, Münster, Germany.
- Department of Neurology and Institute for Translational Neurology, Westfälische Wilhelms-Universität, Münster, Germany.
- Epilepsy Research Center, Westfälische Wilhelms-Universität, 48149, Münster, Germany.
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Ji-wei S, Zi-ying L, Xiang T, Yang Y, Ju-fen Z, Qing-hua Z. CNTF induces Clcf1 in astrocytes to promote the differentiation of oligodendrocyte precursor cells. Biochem Biophys Res Commun 2022; 636:170-177. [DOI: 10.1016/j.bbrc.2022.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/01/2022] [Accepted: 10/03/2022] [Indexed: 11/16/2022]
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Ptaszek B, Podsiadło S, Czerwińska-Ledwig O, Maciejczyk M, Teległów A. Effect of Whole-Body Cryotherapy on Iron Status and Biomarkers of Neuroplasticity in Multiple Sclerosis Women. Healthcare (Basel) 2022; 10:healthcare10091681. [PMID: 36141293 PMCID: PMC9498764 DOI: 10.3390/healthcare10091681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/24/2022] [Accepted: 08/31/2022] [Indexed: 12/01/2022] Open
Abstract
The aim of the study was to compare the effect of a series of 20 whole body cryotherapy (WBC) sessions on iron levels and neuroplasticity biomarkers in women with multiple sclerosis (MS) and healthy women. Consent was obtained from the Bioethics Committee at the Regional Medical Chamber in Krakow (87/KBL/OIL/2018; 8 May 2018). The study was registered in the Australian New Zealand Clinical Trials Registry (ACTRN12620001142921; 2 November 2020). The study included 30 people: 15 women with multiple sclerosis (mean age 41.53 ± 6.98 years) and 15 healthy women (mean age 38.47 ± 6.0 years). Both groups attended cryotherapy sessions. Venous blood was collected for analysis before the WBC session and after 20 sessions. In women with MS and healthy women, no significant effect of WBC on changes in the level biomarkers of neuroplasticity was found. There were also no statistically significant differences between the groups of the analyzed indices at the beginning of the study.
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Affiliation(s)
- Bartłomiej Ptaszek
- Institute of Applied Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
- Correspondence:
| | - Szymon Podsiadło
- Institute of Clinical Rehabilitation, University of Physical Education in Krakow, 31-571 Krakow, Poland
| | - Olga Czerwińska-Ledwig
- Institute of Basic Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
| | - Marcin Maciejczyk
- Institute of Biomedical Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
| | - Aneta Teległów
- Institute of Basic Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
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Zhang J, Li C, Meng F, Guan Y, Zhang T, Yang B, Ren Z, Liu X, Li D, Zhao J, Zhao J, Wang Y, Peng J. Functional tissue-engineered microtissue formed by self-aggregation of cells for peripheral nerve regeneration. Stem Cell Res Ther 2022; 13:3. [PMID: 35012663 DOI: 10.1186/s13287-021-02676-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/11/2021] [Indexed: 02/06/2023] Open
Abstract
Background Peripheral nerve injury (PNI) is one of the essential causes of physical disability with a high incidence rate. The traditional tissue engineering strategy, Top-Down strategy, has some limitations. A new tissue-engineered strategy, Bottom-Up strategy (tissue-engineered microtissue strategy), has emerged and made significant research progress in recent years. However, to the best of our knowledge, microtissues are rarely used in neural tissue engineering; thus, we intended to use microtissues to repair PNI.
Methods We used a low-adhesion cell culture plate to construct adipose-derived mesenchymal stem cells (ASCs) into microtissues in vitro, explored the physicochemical properties and microtissues components, compared the expression of cytokines related to nerve regeneration between microtissues and the same amount of two-dimension (2D)-cultured cells, co-cultured directly microtissues with dorsal root ganglion (DRG) or Schwann cells (SCs) to observe the interaction between them using immunocytochemistry, quantitative reverse transcription polymerase chain reaction (qRT-PCR), enzyme-linked immunosorbent assay (ELISA). We used grafts constructed by microtissues and polycaprolactone (PCL) nerve conduit to repair sciatic nerve defects in rats. Results The present study results indicated that compared with the same number of 2D-cultured cells, microtissue could secrete more nerve regeneration related cytokines to promote SCs proliferation and axons growth. Moreover, in the direct co-culture system of microtissue and DRG or SCs, axons of DRG grown in the direction of microtissue, and there seems to be a cytoplasmic exchange between SCs and ASCs around microtissue. Furthermore, microtissues could repair sciatic nerve defects in rat models more effectively than traditional 2D-cultured ASCs. Conclusion Tissue-engineered microtissue is an effective strategy for stem cell culture and therapy in nerve tissue engineering. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02676-0.
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Yamashina K, Yamamoto S, Matsumoto M, Iwasa K, Takeda N, Haruta C, Maruyama K, Shimizu K, Yoshikawa K. Suppressive Effect of Fruiting Bodies of Medicinal Mushrooms on Demyelination and Motor Dysfunction in a Cuprizone-Induced Multiple Sclerosis Mouse Model. Int J Med Mushrooms 2022; 24:15-24. [DOI: 10.1615/intjmedmushrooms.2022044840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Giardini AC, Evangelista BG, Sant'Anna MB, Martins BB, Lancellotti CLP, Ciena AP, Chacur M, Pagano RL, Ribeiro OG, Zambelli VO, Picolo G. Crotalphine Attenuates Pain and Neuroinflammation Induced by Experimental Autoimmune Encephalomyelitis in Mice. Toxins (Basel) 2021; 13:827. [PMID: 34822611 DOI: 10.3390/toxins13110827] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/12/2021] [Accepted: 11/17/2021] [Indexed: 12/11/2022] Open
Abstract
Multiple sclerosis (MS) is a demyelinating disease of inflammatory and autoimmune origin, which induces sensory and progressive motor impairments, including pain. Cells of the immune system actively participate in the pathogenesis and progression of MS by inducing neuroinflammation, tissue damage, and demyelination. Crotalphine (CRO), a structural analogue to a peptide firstly identified in Crotalus durissus terrificus snake venom, induces analgesia by endogenous opioid release and type 2 cannabinoid receptor (CB2) activation. Since CB2 activation downregulates neuroinflammation and ameliorates symptoms in mice models of MS, it was presently investigated whether CRO has a beneficial effect in the experimental autoimmune encephalomyelitis (EAE). CRO was administered on the 5th day after immunization, in a single dose, or five doses starting at the peak of disease. CRO partially reverted EAE-induced mechanical hyperalgesia and decreased the severity of the clinical signs. In addition, CRO decreases the inflammatory infiltrate and glial cells activation followed by TNF-α and IL-17 downregulation in the spinal cord. Peripherally, CRO recovers the EAE-induced impairment in myelin thickness in the sciatic nerve. Therefore, CRO interferes with central and peripheral neuroinflammation, opening perspectives to MS control.
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袁 金, 吴 德, 王 文, 段 军, 许 晓, 唐 久. A prospective randomized controlled study on mouse nerve growth factor in the treatment of global developmental delay in children. Zhongguo Dang Dai Er Ke Za Zhi 2021; 23:786-790. [PMID: 34511166 PMCID: PMC8428910 DOI: 10.7499/j.issn.1008-8830.2106042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/05/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVES To study the clinical effect of mouse nerve growth factor (mNGF) in the treatment of children with global developmental delay (GDD). METHODS A prospective clinical trial was conducted in 60 children with GDD who were treated in the First Affiliated Hospital of Anhui Medical University between July 2016 and July 2017. These children were randomly divided into two groups: conventional rehabilitation treatment and mNGF treatment group (n=30 each). The children in the conventional rehabilitation treatment group were given neurodevelopmental therapy, and those in the mNGF treatment group were given mNGF treatment in addition to the treatment in the control group. The evaluation results of the Gesell Developmental Scale were compared between the two groups before and after treatment. RESULTS Before treatment and after 1.5 months of treatment, there was no significant difference in the developmental quotient (DQ) of each functional area of the Gesell Developmental Scale between the mNGF treatment and conventional rehabilitation treatment groups (P>0.05). After 3 months of treatment, the mNGF treatment group had significantly higher DQs of gross motor, fine motor, and personal-social interaction than the conventional rehabilitation treatment group (P˂0.05). The incidence rate of transient injection site pain after injection of mNGF was 7% (2/30), and there was no epilepsy or other serious adverse reactions. CONCLUSIONS In children with GDD, routine rehabilitation training combined with mNGF therapy can significantly improve their cognitive, motor, and social abilities.
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Erfani Majd N, Tabandeh MR, Hosseinifar S, Rahimi Zarneh S. Chemical and Green ZnO nanoparticles ameliorated adverse effects of cisplatin on histological structure, antioxidant defense system and neurotrophins expression in rat hippocampus. J Chem Neuroanat 2021; 116:101990. [PMID: 34146667 DOI: 10.1016/j.jchemneu.2021.101990] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 11/20/2022]
Abstract
Cisplatin (CP) is a chemotherapy agent used in the treatment of cancer, but it has various side effects, in particular, neurotoxicity. Zinc oxide nanoparticles (ZnO NPs) are a potent antioxidant. However, there is limited knowledge about the protective effects of ZnO NPs against CP-induced hippocampal toxicity. The present study aimed to explore the potential protective effects of ZnO NPs against CP-induced oxidative stress, loss of neurotrophins support, and tissue damage in the hippocampus of the rats. Eighty adult male Wistar rats were dividing into ten groups including: control (Con), sham, ZnO Bulk (ZnB), chemical ZnO NPs (ChZnO NPs), Green ZnO NPs (GrZnO NPs), CP, CP + ZnB, CP + ChZnO NPs, CP + GrZnO NPs and CP + AE. CP was administrated (5 mg/kg/weekly) for four weeks, and animals were treated simultaneously with different forms of ZnO (5 mg/kg/day). At the end of the experiment, the activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), malondialdehyde (MDA), changes of reduced glutathione (GSH), oxidized glutathione (GSSG) and GSH/GSSG ratio, histological changes, expression of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) genes were assessed in the hippocampus. The results revealed that a decrease in BDNF and NGF mRNA expression, GSH concentration and GSH/GSSG ratio, increasing of GSSG and MDA levels, and neuronal loss in the CP-treated rats were reversed following the administration of different forms of ZnO, especially Gr ZnO NPs and ch ZnO NPs. Co-administration of ZnO NPs to CP-treated rats restored the suppressive effects of CP on activities of antioxidant enzymes (SOD, GPX, CAT). The results showed that in most of the evaluated factors, Gr ZnO NPs showed a greater protective effect than other forms of ZnO. The results suggest that ZnO NPs, in particular Green ZnO NPs (GrZnO NPs) had more potential protective effects against CP-induced oxidative stress, inadequate support neurotrophin and tissue damage in rat hippocampus.
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Rajendran R, Böttiger G, Dentzien N, Rajendran V, Sharifi B, Ergün S, Stadelmann C, Karnati S, Berghoff M. Effects of FGFR Tyrosine Kinase Inhibition in OLN-93 Oligodendrocytes. Cells 2021; 10:1318. [PMID: 34070622 DOI: 10.3390/cells10061318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/20/2021] [Accepted: 05/22/2021] [Indexed: 12/15/2022] Open
Abstract
Fibroblast growth factor (FGF) signaling is involved in the pathogenesis of multiple sclerosis (MS). Data from neuropathology studies suggest that FGF signaling contributes to the failure of remyelination in MS. In MOG35–55-induced EAE, oligodendrocyte-specific deletion of FGFR1 and FGFR2 resulted in a less severe disease course, reduced inflammation, myelin and axon degeneration and changed FGF/FGFR and BDNF/TrkB signaling. Since signaling cascades in oligodendrocytes could not be investigated in the EAE studies, we here aimed to characterize FGFR-dependent oligodendrocyte-specific signaling in vitro. FGFR inhibition was achieved by application of the multi-kinase-inhibitor dovitinib and the FGFR1/2/3-inhibitor AZD4547. Both substances are potent inhibitors of FGF signaling; they are effective in experimental tumor models and patients with malignancies. Effects of FGFR inhibition in oligodendrocytes were studied by immunofluorescence microscopy, protein and gene analyses. Application of the tyrosine kinase inhibitors reduced FGFR1, phosphorylated ERK and Akt expression, and it enhanced BDNF and TrkB expression. Furthermore, the myelin proteins CNPase and PLP were upregulated by FGFR inhibition. In summary, inhibition of FGFR signaling in oligodendrocytes can be achieved by application of tyrosine kinase inhibitors. Decreased phosphorylation of ERK and Akt is associated with an upregulation of BDNF/TrkB signaling, which may be responsible for the increased production of myelin proteins. Furthermore, these data suggest that application of FGFR inhibitors may have the potential to promote remyelination in the CNS.
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Bernardo A, Plumitallo C, De Nuccio C, Visentin S, Minghetti L. Curcumin promotes oligodendrocyte differentiation and their protection against TNF-α through the activation of the nuclear receptor PPAR-γ. Sci Rep 2021; 11:4952. [PMID: 33654147 PMCID: PMC7925682 DOI: 10.1038/s41598-021-83938-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 01/01/2021] [Indexed: 12/21/2022] Open
Abstract
Curcumin is a compound found in the rhizome of Curcuma longa (turmeric) with a large repertoire of pharmacological properties, including anti-inflammatory and neuroprotective activities. The current study aims to assess the effects of this natural compound on oligodendrocyte progenitor (OP) differentiation, particularly in inflammatory conditions. We found that curcumin can promote the differentiation of OPs and to counteract the maturation arrest of OPs induced by TNF-α by a mechanism involving PPAR-γ (peroxisome proliferator activated receptor), a ligand-activated transcription factor with neuroprotective and anti-inflammatory capabilities. Furthermore, curcumin induces the phosphorylation of the protein kinase ERK1/2 known to regulate the transition from OPs to immature oligodendrocytes (OLs), by a mechanism only partially dependent on PPAR-γ. Curcumin is also able to raise the levels of the co-factor PGC1-α and of the cytochrome c oxidase core protein COX1, even when OPs are exposed to TNF-α, through a PPAR-γ-mediated mechanism, in line with the known ability of PPAR-γ to promote mitochondrial integrity and functions, which are crucial for OL differentiation to occur. Altogether, this study provides evidence for a further mechanism of action of curcumin besides its well-known anti-inflammatory properties and supports the suggested therapeutic potential of this nutraceutical in demyelinating diseases.
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Affiliation(s)
- Antonietta Bernardo
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy. .,National Center for Research and Preclinical and Clinical Evaluation of Drugs, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Cristina Plumitallo
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Chiara De Nuccio
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.,Research Coordination and Support Service, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Sergio Visentin
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.,National Center for Research and Preclinical and Clinical Evaluation of Drugs, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Luisa Minghetti
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.,Research Coordination and Support Service, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
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Pemp B, Mitsch C, Kircher K, Reitner A. Changes in Visual Function and Correlations with Inner Retinal Structure in Acute and Chronic Leber's Hereditary Optic Neuropathy Patients after Treatment with Idebenone. J Clin Med 2021; 10:jcm10010151. [PMID: 33406801 PMCID: PMC7795141 DOI: 10.3390/jcm10010151] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/23/2020] [Accepted: 12/26/2020] [Indexed: 11/29/2022] Open
Abstract
Progressive impairment and degeneration of retinal ganglion cells (RGC) and nerve fibers in Leber’s hereditary optic neuropathy (LHON) usually cause permanent visual loss. Idebenone is currently the only approved treatment. However, its therapeutic potential in different stages of LHON has not been definitely clarified. We aimed to investigate the changes in visual function and correlations with retinal structure in acute and in chronic LHON patients after treatment with idebenone. Twenty-three genetically confirmed LHON patients were followed during treatment using logMAR charts, automated perimetry and optical coherence tomography (OCT). Mean visual acuity improved significantly in acute patients treated within 1 year from onset (−0.52 ± 0.46 logMAR from nadir), in early chronic patients who started after 1–5 years (−0.39 ± 0.27 logMAR from baseline), and in late chronic patients with treatment initiation after >5 years (−0.33 ± 0.28 logMAR from baseline, p < 0.001 all groups). In acute and in chronic patients, strong correlations between OCT and visual function parameters were present only after treatment. This and the sustained visual recovery after treatment may indicate a reactivated signal transduction in dysfunctional RGC that survive the acute phase. Our results support previous evidence that idebenone has therapeutic potential in promoting visual recovery in LHON.
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Eftimiadi G, Soligo M, Manni L, Di Giuda D, Calcagni ML, Chiaretti A. Topical delivery of nerve growth factor for treatment of ocular and brain disorders. Neural Regen Res 2021; 16:1740-1750. [PMID: 33510063 PMCID: PMC8328750 DOI: 10.4103/1673-5374.306062] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Neurotrophins are a family of proteins that support neuronal proliferation, survival, and differentiation in the central and peripheral nervous systems, and are regulators of neuronal plasticity. Nerve growth factor is one of the best-described neurotrophins and has advanced to clinical trials for treatment of ocular and brain diseases due to its trophic and regenerative properties. Prior trials over the past few decades have produced conflicting results, which have principally been ascribed to adverse effects of systemic nerve growth factor administration, together with poor penetrance of the blood-brain barrier that impairs drug delivery. Contrastingly, recent studies have revealed that topical ocular and intranasal nerve growth factor administration are safe and effective, suggesting that topical nerve growth factor delivery is a potential alternative to both systemic and invasive intracerebral delivery. The therapeutic effects of local nerve growth factor delivery have been extensively investigated for different ophthalmic diseases, including neurotrophic keratitis, glaucoma, retinitis pigmentosa, and dry eye disease. Further, promising pharmacologic effects were reported in an optic glioma model, which indicated that topically administered nerve growth factor diffused far beyond where it was topically applied. These findings support the therapeutic potential of delivering topical nerve growth factor preparations intranasally for acquired and degenerative brain disorders. Preliminary clinical findings in both traumatic and non-traumatic acquired brain injuries are encouraging, especially in pediatric patients, and clinical trials are ongoing. The present review will focus on the therapeutic effects of both ocular and intranasal nerve growth factor delivery for diseases of the brain and eye.
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Affiliation(s)
- Gemma Eftimiadi
- Institute of Pediatrics, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Marzia Soligo
- Institute of Translational Pharmacology, Consiglio Nazionale delle Ricerche (CNR), Rome, Italy
| | - Luigi Manni
- Institute of Translational Pharmacology, Consiglio Nazionale delle Ricerche (CNR), Rome, Italy
| | - Daniela Di Giuda
- Institute of Nuclear Medicine, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Maria Lucia Calcagni
- Institute of Nuclear Medicine, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Antonio Chiaretti
- Institute of Pediatrics, Fondazione Policlinico Universitario Agostino Gemelli, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
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Affiliation(s)
- Vito Antonio Baldassarro
- Health Science and Technologies Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna, Bologna, Italy
| | - Luciana Giardino
- Health Science and Technologies Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna; Department of Veterinary Medical Sciences, University of Bologna; IRET Foundation, Bologna, Italy
| | - Laura Calzà
- Health Science and Technologies Interdepartmental Center for Industrial Research (HST-ICIR), University of Bologna; Department of Pharmacy and Biotechnology, University of Bologna; Montecatone Rehabilitation Institute, Bologna, Italy
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22
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Paladini MS, Marangon D, Rossetti AC, Guidi A, Coppolino GT, Negri C, Spero V, Abbracchio MP, Lecca D, Molteni R. Prenatal Stress Impairs Spinal Cord Oligodendrocyte Maturation via BDNF Signaling in the Experimental Autoimmune Encephalomyelitis Model of Multiple Sclerosis. Cell Mol Neurobiol 2020. [PMID: 33259004 DOI: 10.1007/s10571-020-01014-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 11/17/2020] [Indexed: 12/17/2022]
Abstract
One of the most substantial and established environmental risk factors for neurological and psychiatric disorders is stress exposure, whose detrimental consequences hinge on several variables including time. In this regard the gestational period is known to present an intrinsic vulnerability to environmental insults and thus stressful events during pregnancy can lead to severe consequences on the offspring's brain development with long-term repercussions throughout adulthood. On this basis, we investigated the long-lasting impact of prenatal stress exposure on the susceptibility to the experimental autoimmune encephalomyelitis (EAE), a well-established murine model of multiple sclerosis. Although stress is considered a triggering factor for this chronic, progressive, autoimmune disease, little is known about the underlying mechanisms. To this end, EAE was induced by immunization with MOG35-55/CFA and pertussis toxin administration in adult female C57BL/6 mice born from control or stressed dams exposed to restraint stress during the last days of gestation. Our results demonstrate that gestational stress induces a marked increase in the severity of EAE symptoms in adulthood. Further, we highlight an altered maturation of oligodendrocytes in the spinal cord of prenatally stressed EAE mice, as indicated by the higher levels of GPR17, a marker of immature oligodendrocyte precursor cells. These behavioral and molecular alterations are paralleled by changes in the expression and signaling of the neurotrophin BDNF, an important mediator of neural plasticity that may contribute to stress-induced impaired remyelination. Since several already marketed drugs are able to modulate BDNF levels, these results pave the way to the possibility of repositioning these drugs in multiple sclerosis.
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Vaes JEG, Brandt MJV, Wanders N, Benders MJNL, de Theije CGM, Gressens P, Nijboer CH. The impact of trophic and immunomodulatory factors on oligodendrocyte maturation: Potential treatments for encephalopathy of prematurity. Glia 2020; 69:1311-1340. [PMID: 33595855 PMCID: PMC8246971 DOI: 10.1002/glia.23939] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 12/11/2022]
Abstract
Encephalopathy of prematurity (EoP) is a major cause of morbidity in preterm neonates, causing neurodevelopmental adversities that can lead to lifelong impairments. Preterm birth-related insults, such as cerebral oxygen fluctuations and perinatal inflammation, are believed to negatively impact brain development, leading to a range of brain abnormalities. Diffuse white matter injury is a major hallmark of EoP and characterized by widespread hypomyelination, the result of disturbances in oligodendrocyte lineage development. At present, there are no treatment options available, despite the enormous burden of EoP on patients, their families, and society. Over the years, research in the field of neonatal brain injury and other white matter pathologies has led to the identification of several promising trophic factors and cytokines that contribute to the survival and maturation of oligodendrocytes, and/or dampening neuroinflammation. In this review, we discuss the current literature on selected factors and their therapeutic potential to combat EoP, covering a wide range of in vitro, preclinical and clinical studies. Furthermore, we offer a future perspective on the translatability of these factors into clinical practice.
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Affiliation(s)
- Josine E G Vaes
- Department for Developmental Origins of Disease, University Medical Center Utrecht Brain Center and Wilhelmina Children's Hospital, Utrecht University, Utrecht, The Netherlands.,Department of Neonatology, University Medical Center Utrecht Brain Center and Wilhelmina Children's Hospital, Utrecht University, Utrecht, The Netherlands
| | - Myrna J V Brandt
- Department for Developmental Origins of Disease, University Medical Center Utrecht Brain Center and Wilhelmina Children's Hospital, Utrecht University, Utrecht, The Netherlands
| | - Nikki Wanders
- Department for Developmental Origins of Disease, University Medical Center Utrecht Brain Center and Wilhelmina Children's Hospital, Utrecht University, Utrecht, The Netherlands
| | - Manon J N L Benders
- Department of Neonatology, University Medical Center Utrecht Brain Center and Wilhelmina Children's Hospital, Utrecht University, Utrecht, The Netherlands
| | - Caroline G M de Theije
- Department for Developmental Origins of Disease, University Medical Center Utrecht Brain Center and Wilhelmina Children's Hospital, Utrecht University, Utrecht, The Netherlands
| | | | - Cora H Nijboer
- Department for Developmental Origins of Disease, University Medical Center Utrecht Brain Center and Wilhelmina Children's Hospital, Utrecht University, Utrecht, The Netherlands
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SEYİTHANOĞLU M, İNANÇ Y, BAVLİ S. Üriner Sistem Semptomları Olan Multipl Sklerozlu Hastalarda Üriner Sinir Büyüme Faktörü Düzeyleri. Kahramanmaraş Sütçü İmam Üniversitesi Tıp Fakültesi Dergisi 2020. [DOI: 10.17517/ksutfd.793595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Youssef MI, Zhou Y, Eissa IH, Wang Y, Zhang J, Jiang L, Hu W, Qi J, Chen Z. Tetradecyl 2,3-dihydroxybenzoate alleviates oligodendrocyte damage following chronic cerebral hypoperfusion through IGF-1 receptor. Neurochem Int 2020; 138:104749. [PMID: 32387468 DOI: 10.1016/j.neuint.2020.104749] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 04/08/2020] [Accepted: 04/23/2020] [Indexed: 12/21/2022]
Abstract
Currently, there is no effective therapy for chronic cerebral hypoperfusion-induced subcortical ischemic vascular dementia (SIVD), which displays cognitive deficits and progressive white matter damage. Tetradecyl 2,3-dihydroxybenzoate (ABG-001) is a lead compound derived from gentisides with neuritogenic activity. In this report, we intended to investigate the effect of ABG-001 on the SIVD experimental model through right unilateral common carotid arteries occlusion (rUCCAO) in mice. We found that ABG-001 remarkably alleviated white matter damage and cognitive deficits after cerebral hypoperfusion induced by rUCCAO. The protection of ABG-001 on the white matter was related to an amelioration of the oligodendrocyte apoptosis and demyelination rather than promoting remyelination. Molecular docking study showed that ABG-001 possesses a high affinity for insulin-like growth factor-1 receptor (IGF-1R), but not for tropomyosin receptor kinase A (TrkA). The protection of ABG-001 against oligodendrocyte damage was abrogated by IGF-1R antagonist or knockdown of IGF-1R through shRNA, but not TrkA antagonist. Moreover, ABG-001 did not induce hematological, renal or hepatic toxicity after chronic treatment. The present study indicates that ABG-001 protects oligodendrocytes through IGF-1R to relieve demyelination following chronic cerebral hypoperfusion, which could be represented as an encouraging treatment for SIVD.
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Affiliation(s)
- Mahmoud I Youssef
- Institute of Pharmacology & Toxicology, NHC and CAMS Key Laboratory of Medical Neurobiology, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Yiting Zhou
- Institute of Pharmacology & Toxicology, NHC and CAMS Key Laboratory of Medical Neurobiology, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China; Department of Pharmacy, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, East Qingchun Road 3, Hangzhou, Zhejiang, 310016, PR China
| | - Ibrahim H Eissa
- Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, 11884, Egypt
| | - Yanhui Wang
- Institute of Pharmacology & Toxicology, NHC and CAMS Key Laboratory of Medical Neurobiology, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Jing Zhang
- Department of Pharmacy, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, East Qingchun Road 3, Hangzhou, Zhejiang, 310016, PR China
| | - Lei Jiang
- Institute of Pharmacology & Toxicology, NHC and CAMS Key Laboratory of Medical Neurobiology, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Weiwei Hu
- Institute of Pharmacology & Toxicology, NHC and CAMS Key Laboratory of Medical Neurobiology, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China.
| | - Jianhua Qi
- Institute of Pharmacology & Toxicology, NHC and CAMS Key Laboratory of Medical Neurobiology, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China
| | - Zhong Chen
- Institute of Pharmacology & Toxicology, NHC and CAMS Key Laboratory of Medical Neurobiology, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, PR China.
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Houshmand F, Barati M, Golab F, Ramezani-Sefidar S, Tanbakooie S, Tabatabaei M, Amiri M, Sanadgol N. Metformin-induced AMPK activation stimulates remyelination through induction of neurotrophic factors, downregulation of NogoA and recruitment of Olig2+ precursor cells in the cuprizone murine model of multiple sclerosis. ACTA ACUST UNITED AC 2019; 27:583-92. [PMID: 31620963 DOI: 10.1007/s40199-019-00286-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 06/30/2019] [Indexed: 12/15/2022]
Abstract
PURPOSE Oligodendrocytes (OLGs) damage and myelin distraction is considered as a critical step in many neurological disorders especially multiple sclerosis (MS). Cuprizone (cup) animal model of MS targets OLGs degeneration and frequently used to the mechanistic understanding of de- and remyelination. The aim of this study was exploring the effects of metformin on the OLGs regeneration, myelin repair and profile of neurotrophic factors in the mice brain after cup-induced acute demyelination. METHODS Mice (C57BL/6 J) were fed with chow containing 0.2% cup for 5 weeks to induce specific OLGs degeneration and acute demyelination. Next, the cup was withdrawn to allow one-week recovery (spontaneous remyelination). At the end of this period, mature OLGs markers, myelin-associated neurite outgrowth inhibitor protein A (NogoA), premature specific OLGs transcription factor (Olig2), anti-apoptosis marker (survivin), neurotrophic factors, and AMPK activation were monitored in the presence or absence of metformin (50 mg/kg body weight/day) in the corpus callosum (CC). RESULTS Our finding indicated that consumption of metformin during the recovery period potentially induced an active form of AMPK (p-AMPK) and promoted repopulation of mature OLGs (MOG+ cells, MBP+ cells) in CC through up-regulation of BDNF, CNTF, and NGF as well as down-regulation of NogoA and recruitment of Olig2+ precursor cells. CONCLUSIONS This study for the first time reveals that metformin-induced AMPK, a master regulator of energy homeostasis, activation following toxic demyelination could potentially accelerate regeneration and supports spontaneous demyelination. These findings suggest the development of new therapeutic strategies based on AMPK activation for MS in the near future. Graphical abstract An overview of the possible molecular mechanisms of action of metformin-mediated remyelinationa.
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Zhou T, Ahmad TK, Alrushaid S, Pozdirca M, Ethans K, Intrater H, Le T, Burczynski F, Kong J, Namaka M. Therapeutic impact of orally administered cannabinoid oil extracts in an experimental autoimmune encephalomyelitis animal model of multiple sclerosis. Biochem Biophys Res Commun 2019; 516:373-380. [DOI: 10.1016/j.bbrc.2019.06.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 06/07/2019] [Indexed: 10/26/2022]
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Ahluwalia A, Jones MK, Hoa N, Tarnawski AS. Mitochondria in gastric epithelial cells are the key targets for NSAIDs-induced injury and NGF cytoprotection. J Cell Biochem 2019; 120:11651-11659. [PMID: 30790334 DOI: 10.1002/jcb.28445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/05/2018] [Accepted: 12/10/2018] [Indexed: 02/05/2023]
Abstract
Gastric epithelial cells are important components of mucosal protection and targets of nonsteroidal anti-inflammatory drugs (NSAIDs)-induced injury. Diclofenac (DFN) is one of the most widely used NSAIDs; however, even its short-term use can induce gastric erosions and ulcers. Nerve growth factor (NGF) has been reported to act not only on neuronal cells but also on endothelial cells; however, its action on gastric epithelial cells is unknown. This study was aimed to determine, whether NGF can protect gastric epithelial cells against DFN-induced injury, and to determine the underlying molecular mechanisms with a focus on mitochondria, survivin, and insulin-like growth factor 1 (IGF-1). Cultured normal rat gastric mucosal epithelial cells 1 (RGM1) were treated with phosphate-buffered saline (PBS; control), NGF (100 ng/mL) and/or DFN (0.25-1.00 mM) for 4 hours. We examined: (1) cell injury by confocal microscopy; (2) cell death/survival using Calcein AM live cell tracking dye; (3) mitochondrial structure and membrane potential function using MitoTracker in live cells; and (4) expression of NGF, its receptor - tropomyosin receptor kinase A (TrkA), survivin and IGF-1 by immunostaining. DFN treatment of RGM1 cells for 4 hours caused extensive cell injury, mitochondrial disintegration, reduced cell viability (from 94 ± 3% in controls to 14 ± 4% in 0.5 mM DFN-treated cells; P < 0.001), and expression of survivin and IGF-1. NGF treatment significantly increased survivin and IGF-1 expression by 41% and 75%, respectively versus PBS controls. Pretreatment with NGF before DFN treatment reduced mitochondrial damage and cell death by 73% and 82%, respectively versus treatment with DFN alone (all P < 0.001). This study also showed the presence of high-affinity TrkA receptors in the plasma membrane and mitochondria of RGM1 cells indicating novel actions of NGF.
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Affiliation(s)
- Amrita Ahluwalia
- Medical and Research Services, Veterans Affairs Long Beach Healthcare System, Long Beach, California
| | - Michael K Jones
- Medical and Research Services, Veterans Affairs Long Beach Healthcare System, Long Beach, California
- Department of Medicine, University of California, Irvine, California
| | - Neil Hoa
- Medical and Research Services, Veterans Affairs Long Beach Healthcare System, Long Beach, California
| | - Andrzej S Tarnawski
- Medical and Research Services, Veterans Affairs Long Beach Healthcare System, Long Beach, California
- Department of Medicine, University of California, Irvine, California
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Zhang Y, Lu XY, Ye ZQ, Ciric B, Ma CG, Rostami A, Li X, Zhang GX. Combination Therapy With Fingolimod and Neural Stem Cells Promotes Functional Myelination in vivo Through a Non-immunomodulatory Mechanism. Front Cell Neurosci 2019; 13:14. [PMID: 30804753 PMCID: PMC6371042 DOI: 10.3389/fncel.2019.00014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/15/2019] [Indexed: 01/03/2023] Open
Abstract
Myelination, which occurs predominantly postnatally and continues throughout life, is important for proper neurologic function of the mammalian central nervous system (CNS). We have previously demonstrated that the combination therapy of fingolimod (FTY720) and transplanted neural stem cells (NSCs) had a significantly enhanced therapeutic effect on the chronic stage of experimental autoimmune encephalomyelitis, an animal model of CNS autoimmunity, compared to using either one of them alone. However, reduced disease severity may be secondary to the immunomodulatory effects of FTY720 and NSCs, while whether this therapy directly affects myelinogenesis remains unknown. To investigate this important question, we used three myelination models under minimal or non-inflammatory microenvironments. Our results showed that FTY720 drives NSCs to differentiate into oligodendrocytes and promotes myelination in an ex vivo brain slice culture model, and in the developing CNS of healthy postnatal mice in vivo. Elevated levels of neurotrophic factors, e.g., brain-derived neurotrophic factor and glial cell line-derived neurotrophic factor, were observed in the CNS of the treated infant mice. Further, FTY720 and NSCs efficiently prolonged the survival and improved sensorimotor function of shiverer mice. Together, these data demonstrate a direct effect of FTY720, beyond its known immunomodulatory capacity, in NSC differentiation and myelin development as a novel mechanism underlying its therapeutic effect in demyelinating diseases.
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Affiliation(s)
- Yuan Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, Shaanxi Normal University, Xi'an, China
| | - Xin-Yu Lu
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, Shaanxi Normal University, Xi'an, China
| | - Ze-Qin Ye
- National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, Shaanxi Normal University, Xi'an, China
| | - Bogoljub Ciric
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Cun-Gen Ma
- Department of Neurology, Institute of Brain Science, Shanxi Datong University Medical School, Datong, China
| | - Abdolmohamad Rostami
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Xing Li
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, The Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, The Ministry of Education, Shaanxi Normal University, Xi'an, China,*Correspondence: Xing Li
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States,Guang-Xian Zhang
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Dias FJ, Fazan VPS, Cury DP, de Almeida SRY, Borie E, Fuentes R, Coutinho-Netto J, Watanabe IS. Growth factors expression and ultrastructural morphology after application of low-level laser and natural latex protein on a sciatic nerve crush-type injury. PLoS One 2019; 14:e0210211. [PMID: 30625210 PMCID: PMC6326513 DOI: 10.1371/journal.pone.0210211] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 12/18/2018] [Indexed: 12/21/2022] Open
Abstract
The effects of low-level laser therapy (LLLT) and natural latex protein (F1, Hevea brasiliensis) were evaluated on crush-type injuries (15kg) to the sciatic nerve in the expressions of nerve growth factor (NGF) and vascular endothelium growth factor (VEGF) and ultrastructural morphology to associate with previous morphometric data using the same protocol of injury and treatment. Thirty-six male rats were allocated into six experimental groups (n = 6): 1-Control; 2-Exposed nerve; 3-Injured nerve; 4-LLLT (15J/cm2, 780nm, 30mW, Continuous Wave) treated injured nerve; 5-F1 (0,1mg) treated injured nerve; and 6-LLLT&F1 treated injured nerve. Four or eight weeks after, sciatic nerve samples were processed for analysis. NGF expression were higher (p<0.05) four weeks after in all injured groups in comparison to Control (Med:0.8; Q1:0; Q3:55.5%area). Among them, the Injured (Med:70.7; Q1:64.4; Q3:77.5%area) showed the highest expression, and F1 (Med:17.3; Q1:14.1; Q3:21.7%area) had the lowest. At week 8, NGF expressions decreased in the injured groups. VEGF was expressed in all groups; its higher expression was observed in the injured groups 4 weeks after (Injured. Med:29.5; F1. Med:17.7 and LLLT&F1. Med:19.4%area). At week 8, a general reduction of VEGF expression was noted, remaining higher in F1 (Med:35.1; Q1.30.6; Q3.39.6%area) and LLLT&F1 (Med:18.5; Q1:16; Q3:25%area). Ultrastructural morphology revealed improvements in the treated groups; 4 weeks after, the F1 group presented greater quantity and diameter of the nerve fibers uniformly distributed. Eight weeks after, the F1 and LLLT&F1 showed similar characteristics to the non-injured groups. In summary, these results and our previous studies indicated that F1 and LLLT may favorably influence the healing of nerve crush injury. Four weeks after nerve injury F1 group showed the best results suggesting recovery acceleration; at 8th week F1 and LLLT&F1 groups presented better features and higher vascularization that could be associated with VEGF maintenance.
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Affiliation(s)
- Fernando José Dias
- Department of Integral Dentistry, CICO—Research Centre in Dental Sciences, Dental School, Universidad de La Frontera, Temuco, Chile
- * E-mail:
| | - Valéria Paula Sassoli Fazan
- Department of Surgery and Anatomy, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Diego Pulzatto Cury
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Eduardo Borie
- Department of Integral Dentistry, CICO—Research Centre in Dental Sciences, Dental School, Universidad de La Frontera, Temuco, Chile
| | - Ramón Fuentes
- Department of Integral Dentistry, CICO—Research Centre in Dental Sciences, Dental School, Universidad de La Frontera, Temuco, Chile
| | - Joaquim Coutinho-Netto
- Department of Pharmacology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Ii-sei Watanabe
- Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
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Nociti V, Santoro M, Quaranta D, Losavio FA, De Fino C, Giordano R, Palomba N, Rossini PM, Guerini FR, Clerici M, Caputo D, Mirabella M. BDNF rs6265 polymorphism methylation in Multiple Sclerosis: A possible marker of disease progression. PLoS One 2018; 13:e0206140. [PMID: 30352103 PMCID: PMC6198951 DOI: 10.1371/journal.pone.0206140] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 10/08/2018] [Indexed: 01/19/2023] Open
Abstract
INTRODUCTION Brain-Derived Neurotrophic Factor (BDNF) and its most common polymorphism Val66Met are known to have a role in Multiple Sclerosis (MS) pathogenesis. Evidence is accumulating that there is an involvement of DNA methylation in the regulation of BDNF expression. The aim of this study was to assess in blood samples of MS patients the correlation between the methylation status of the CpG site near BDNF-Val66Met polymorphism and the severity of the disease. METHODS We recruited 209 MS patients that were genotyped for the BDNF Val66Met polymorphism. For each patient we quantitatively measured the methylation level of cytosine included in the exonic CpG site that can be created or abolished by the Val66Met BDNF polymorphism. Furthermore, we analyzed the clinical history of each patient and determined the time elapsed since the onset of the disease and an EDSS score of 6.0. RESULTS The genetic analysis identified 122 (58.4%) subjects carrying the Val/Val genotype, 81 (38.8%) with Val/Met genotype, and 6 (2.8%) carrying the Met/Met genotype. When the endpoint of an EDSS score of 6 was taken into account by means of a survival analysis, 52 failures (i.e., reaching an EDSS score of 6) were reported. When the sample was stratified according to the percentage of the BDNF methylation, subjects falling below the median (median methylation = 81%) were at higher risk of failure (IRD = 0.016; 95%CI = 0.0050-0.0279; p = 0.004). CONCLUSIONS In patients with a high disease progression the hypomethylation of the BDNF gene could increase the secretion of the protective neurotrophin, so epigenetic modifications could be the organism response to limit a brain functional reserve loss. Our study suggests that the percentage of methylation of the BDNF gene could be used as a prognostic factor for disease progression toward a high disability in MS patient.
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Affiliation(s)
- Viviana Nociti
- Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS—Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Davide Quaranta
- Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS—Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco Antonio Losavio
- Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS—Università Cattolica del Sacro Cuore, Rome, Italy
| | - Chiara De Fino
- Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS—Università Cattolica del Sacro Cuore, Rome, Italy
| | - Rocco Giordano
- Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS—Università Cattolica del Sacro Cuore, Rome, Italy
| | - Nicole Palomba
- Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS—Università Cattolica del Sacro Cuore, Rome, Italy
| | - Paolo Maria Rossini
- Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS—Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Mario Clerici
- Department of Physiopathology and Transplantation, University of Milan, Milan, Italy
| | | | - Massimiliano Mirabella
- Institute of Neurology, Fondazione Policlinico Universitario A. Gemelli IRCCS—Università Cattolica del Sacro Cuore, Rome, Italy
- * E-mail:
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Santos AK, Vieira MS, Vasconcellos R, Goulart VAM, Kihara AH, Resende RR. Decoding cell signalling and regulation of oligodendrocyte differentiation. Semin Cell Dev Biol 2018; 95:54-73. [PMID: 29782926 DOI: 10.1016/j.semcdb.2018.05.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/15/2018] [Accepted: 05/17/2018] [Indexed: 12/20/2022]
Abstract
Oligodendrocytes are fundamental for the functioning of the nervous system; they participate in several cellular processes, including axonal myelination and metabolic maintenance for astrocytes and neurons. In the mammalian nervous system, they are produced through waves of proliferation and differentiation, which occur during embryogenesis. However, oligodendrocytes and their precursors continue to be generated during adulthood from specific niches of stem cells that were not recruited during development. Deficiencies in the formation and maturation of these cells can generate pathologies mainly related to myelination. Understanding the mechanisms involved in oligodendrocyte development, from the precursor to mature cell level, will allow inferring therapies and treatments for associated pathologies and disorders. Such mechanisms include cell signalling pathways that involve many growth factors, small metabolic molecules, non-coding RNAs, and transcription factors, as well as specific elements of the extracellular matrix, which act in a coordinated temporal and spatial manner according to a given stimulus. Deciphering those aspects will allow researchers to replicate them in vitro in a controlled environment and thus mimic oligodendrocyte maturation to understand the role of oligodendrocytes in myelination in pathologies and normal conditions. In this study, we review these aspects, based on the most recent in vivo and in vitro data on oligodendrocyte generation and differentiation.
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Affiliation(s)
- A K Santos
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - M S Vieira
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil; Instituto Nanocell, Rua Santo Antônio, 420, 35500-041 Divinópolis, MG, Brazil
| | - R Vasconcellos
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil; Instituto Nanocell, Rua Santo Antônio, 420, 35500-041 Divinópolis, MG, Brazil
| | - V A M Goulart
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - A H Kihara
- Centro de Matemática, Computação e Cognição, Universidade Federal do ABC, São Bernardo do Campo, SP, Brazil
| | - R R Resende
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil; Instituto Nanocell, Rua Santo Antônio, 420, 35500-041 Divinópolis, MG, Brazil.
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Ren C, Chen X, Du N, Geng S, Hu Y, Liu X, Wu X, Lin Y, Bai X, Yin W, Cheng S, Yang L, Zhang Y. Low-intensity pulsed ultrasound promotes Schwann cell viability and proliferation via the GSK-3β/β-catenin signaling pathway. Int J Biol Sci 2018; 14:497-507. [PMID: 29805301 PMCID: PMC5968842 DOI: 10.7150/ijbs.22409] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 02/16/2018] [Indexed: 12/17/2022] Open
Abstract
Background: It has been reported that ultrasound enhances peripheral nerve regeneration, but the mechanism remains elusive. Low-intensity pulsed ultrasound (LIPUS) has been reported to enhance proliferation and alter protein production in various types of cells. In this study, we detected the effects of LIPUS on Schwann cells. Material and methods: Schwann cells were separated from new natal Sprague-Dawley rat sciatic nerves and were cultured and purified. The Schwann cells were treated by LIPUS for 10 minutes every day, with an intensity of 27.37 mW/cm2. After treatment for 5 days, MTT, EdU staining, and flow cytometry were performed to examine cell viability and proliferation. Neurotrophic factors, including FGF, NGF, BDNF, and GDNF, were measured by western blot and real-time PCR. GSK-3β, p-GSK-3β, β-catenin and Cyclin D1 protein levels were detected using a western blot analysis. The expression of Cyclin D1 was also detected by immunofluorescence. Results: MTT and EdU staining showed that LIPUS increased the Schwann cells viability and proliferation. Compared to the control group, LIPUS increased the expression of growth factors and neurotrophic factors, including FGF, NGF, BDNF, GDNF, and Cyclin D1. Meanwhile, GSK-3β activity was inhibited in the LIPUS group as demonstrated by the increased level of p-GSK-3β and the ratio of the p-GSK-3β/GSK-3β level. The mRNA and protein expressions of β-catenin were increased in the LIPUS group. However, SB216763, a GSK-3β inhibitor, reversed the effects of LIPUS on Schwann cells. Conclusion: LIPUS promotes Schwann cell viability and proliferation by increasing Cyclin D1 expression via enhancing the GSK-3β/β-catenin signaling pathway.
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Affiliation(s)
- Cong Ren
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150086, China
| | - Xiaohui Chen
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Ning Du
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Shuo Geng
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150001, China
| | - Yingying Hu
- Department of Pharmacy, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Xin Liu
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Xianxian Wu
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Yuan Lin
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Xue Bai
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
| | - Wenzhe Yin
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150086, China
| | - Shi Cheng
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150086, China
| | - Lei Yang
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province 150001, China
| | - Yong Zhang
- Departmentof Pharmacology (the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China), Harbin Medical University, Harbin, eilongjiang Province 150081, China
- Institute of Metabolic Disease, Heilongjiang Academy of Medical Science, Harbin, Heilongjiang Province 150086, China
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Lillico R, Zhou T, Khorshid Ahmad T, Stesco N, Gozda K, Truong J, Kong J, Lakowski TM, Namaka M. Increased Post-Translational Lysine Acetylation of Myelin Basic Protein Is Associated with Peak Neurological Disability in a Mouse Experimental Autoimmune Encephalomyelitis Model of Multiple Sclerosis. J Proteome Res 2018; 17:55-62. [PMID: 29111742 DOI: 10.1021/acs.jproteome.7b00270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Citrullination of arginine residues is a post-translational modification (PTM) found on myelin basic protein (MBP), which neutralizes MBPs positive charge, and is implicated in myelin damage and multiple sclerosis (MS). Here we identify lysine acetylation as another neutralizing PTM to MBP that may be involved in myelin damage. We quantify changes in lysine and arginine PTMs on MBP derived from mice induced with an experimental autoimmune encephalomyelitis (EAE) model of MS using liquid chromatography tandem mass spectrometry. The changes in PTMs are correlated to changes in neurological disability scoring (NDS), as a marker of myelin damage. We found that lysine acetylation increased by 2-fold on MBP during peak NDS post-EAE induction. We also found that mono- and dimethyl-lysine, as well as asymmetric dimethyl-arginine residues on MBP were elevated at peak EAE disability. These findings suggest that the acetylation and methylation of lysine on MBP are PTMs associated with the neurological disability produced by EAE. Since histone deacetylase (HDAC) inhibitors have been previously shown to improve neurological disability, we also show that treatment with trichostatin A (a HDAC inhibitor) improves the NDS of EAE mice but does not change MBP acetylation.
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Affiliation(s)
- Ryan Lillico
- The Rady Faculty of Health Sciences, College of Pharmacy, Pharmaceutical Analysis Laboratory, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Ting Zhou
- The Rady Faculty of Health Sciences, College of Pharmacy, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
- Department of Human Anatomy and Cell Science, College of Medicine, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Tina Khorshid Ahmad
- The Rady Faculty of Health Sciences, College of Pharmacy, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Nicholas Stesco
- The Rady Faculty of Health Sciences, College of Pharmacy, Pharmaceutical Analysis Laboratory, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Kiana Gozda
- The Rady Faculty of Health Sciences, College of Pharmacy, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Jessica Truong
- The Rady Faculty of Health Sciences, College of Pharmacy, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Jiming Kong
- Department of Human Anatomy and Cell Science, College of Medicine, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Ted M Lakowski
- The Rady Faculty of Health Sciences, College of Pharmacy, Pharmaceutical Analysis Laboratory, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Michael Namaka
- The Rady Faculty of Health Sciences, College of Pharmacy, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
- Department of Human Anatomy and Cell Science, College of Medicine, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
- Joint Laboratory of Biological Psychiatry Between Shantou University Medical College and College of Medicine, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
- Department of Rehabilitation Medicine, Health Sciences Centre (HSC) , Winnipeg, Manitoba R3A 1R9, Canada
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Monteleone F, Nicoletti CG, Stampanoni Bassi M, Iezzi E, Buttari F, Furlan R, Finardi A, Marfia GA, Centonze D, Mori F. Nerve growth factor is elevated in the CSF of patients with multiple sclerosis and central neuropathic pain. J Neuroimmunol 2017; 314:89-93. [PMID: 29174194 DOI: 10.1016/j.jneuroim.2017.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 10/26/2017] [Accepted: 11/17/2017] [Indexed: 01/03/2023]
Abstract
Central neuropathic pain (CNP) is common and disabling among patients with multiple sclerosis (MS). The pathological mechanisms underlying CNP in MS are not well understood. We explored whether NGF is implicated in the pathogenesis of CNP in MS. We measured NGF concentration in the CSF of 73 patients affected by MS, 15 with and 58 without CNP and 14 controls. We found increased levels of NGF in the CSF of patients with CNP compared to patients without and to controls. This finding supports the hypothesis that NGF plays a role in MS related CNP.
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Affiliation(s)
- Fabrizia Monteleone
- Multiple Sclerosis Clinical and Research Unit, Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; Unit of Neurology & Unit of Neurorehabilitation, IRCCS Istituto Neurologico Mediterraneo (INM) Neuromed, 86077 Pozzilli, IS, Italy
| | - Carolina G Nicoletti
- Multiple Sclerosis Clinical and Research Unit, Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; Unit of Neurology & Unit of Neurorehabilitation, IRCCS Istituto Neurologico Mediterraneo (INM) Neuromed, 86077 Pozzilli, IS, Italy
| | - Mario Stampanoni Bassi
- Multiple Sclerosis Clinical and Research Unit, Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; Unit of Neurology & Unit of Neurorehabilitation, IRCCS Istituto Neurologico Mediterraneo (INM) Neuromed, 86077 Pozzilli, IS, Italy
| | - Ennio Iezzi
- Unit of Neurology & Unit of Neurorehabilitation, IRCCS Istituto Neurologico Mediterraneo (INM) Neuromed, 86077 Pozzilli, IS, Italy
| | - Fabio Buttari
- Multiple Sclerosis Clinical and Research Unit, Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; Unit of Neurology & Unit of Neurorehabilitation, IRCCS Istituto Neurologico Mediterraneo (INM) Neuromed, 86077 Pozzilli, IS, Italy
| | - Roberto Furlan
- Neuroimmunology Unit, Institute of Experimental Neurology (INSpe), Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Annamaria Finardi
- Neuroimmunology Unit, Institute of Experimental Neurology (INSpe), Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Girolama A Marfia
- Multiple Sclerosis Clinical and Research Unit, Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy
| | - Diego Centonze
- Multiple Sclerosis Clinical and Research Unit, Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; Unit of Neurology & Unit of Neurorehabilitation, IRCCS Istituto Neurologico Mediterraneo (INM) Neuromed, 86077 Pozzilli, IS, Italy.
| | - Francesco Mori
- Multiple Sclerosis Clinical and Research Unit, Department of Systems Medicine, Tor Vergata University, 00133 Rome, Italy; Unit of Neurology & Unit of Neurorehabilitation, IRCCS Istituto Neurologico Mediterraneo (INM) Neuromed, 86077 Pozzilli, IS, Italy
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Tronson NC, Collette KM. (Putative) sex differences in neuroimmune modulation of memory. J Neurosci Res 2017; 95:472-486. [PMID: 27870428 DOI: 10.1002/jnr.23921] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 08/11/2016] [Accepted: 08/22/2016] [Indexed: 12/11/2022]
Abstract
The neuroimmune system is significantly sexually dimorphic, with sex differences evident in the number and activation states of microglia, in the activation of astrocytes, and in cytokine release and function. Neuroimmune cells and signaling are now recognized as critical for many neural functions throughout the life span, including synaptic plasticity and memory function. Here we address the question of how cytokines, astrocytes, and microglia contribute to memory, and specifically how neuroimmune modulation of memory differentially affects males and females. Understanding sex differences in both normal memory processes and dysregulation of memory in psychiatric and neurological disorders is critical for developing treatment and preventive strategies for memory disorders that are effective for both men and women. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Natalie C Tronson
- Department of Psychology, University of Michigan, Ann Arbor, Michigan
| | - Katie M Collette
- Department of Psychology, University of Michigan, Ann Arbor, Michigan
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Zhao G, Li D, Ding X, Li L. Nerve growth factor pretreatment inhibits lidocaine‑induced myelin damage via increasing BDNF expression and inhibiting p38 mitogen activation in the rat spinal cord. Mol Med Rep 2017; 16:4678-4684. [PMID: 28849178 PMCID: PMC5647042 DOI: 10.3892/mmr.2017.7197] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 05/19/2017] [Indexed: 01/19/2023] Open
Abstract
The present study aimed to investigate the effect of exogenous nerve growth factor (NGF) pretreatment on demyelination in the spinal cord of lidocaine-treated rats, and explored the potential neuroprotective mechanisms of NGF. A total of 36 rats were randomly assigned to three groups (n=12 per group): Sham group; Lido group, received intrathecal injection of lidocaine; NGF group, received intrathecal injection of NGF followed by intrathecal injection of lidocaine. Tail-flick tests were used to evaluate neurobehavioral function. Ultrastructural alternations were analyzed by transmission electron microscopy. Immunofluorescence was used to examine the expression of myelin basic protein (MBP) and brain-derived neurotrophic factor (BDNF). ELISA was used to determine serum levels of MBP and proteolipid protein (PLP). Western blotting was used to detect the expression of phosphorylated mitogen activated protein kinase (MAPK). NGF pretreatment reduced lidocaine-induced neurobehavioral damage, nerve fiber demyelination, accompanied by a decrease in MBP expression in the spinal cord and an increase in MBP and PLP in serum. In addition, NGF pretreatment increased BDNF expression in the spinal cord of lidocaine-treated rats. Furthermore, NGF pretreatment reduced p38 MAPK phosphorylation in the spinal cord of lidocaine-treated rats. NGF treatment reduces lidocaine-induced neurotoxicity via the upregulation of BDNF and inhibition of p38 MAPK. NGF therapy may improve the clinical use of lidocaine in intravertebral anesthesia.
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Affiliation(s)
- Guangyi Zhao
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Dan Li
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Xudong Ding
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Lu Li
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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Khorshid Ahmad T, Zhou T, AlTaweel K, Cortes C, Lillico R, Lakowski TM, Gozda K, Namaka MP. Experimental Autoimmune Encephalomyelitis (EAE)-Induced Elevated Expression of the E1 Isoform of Methyl CpG Binding Protein 2 (MeCP2E1): Implications in Multiple Sclerosis (MS)-Induced Neurological Disability and Associated Myelin Damage. Int J Mol Sci 2017; 18:ijms18061254. [PMID: 28604632 PMCID: PMC5486076 DOI: 10.3390/ijms18061254] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/15/2017] [Accepted: 05/13/2017] [Indexed: 12/26/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic neurological disease characterized by the destruction of central nervous system (CNS) myelin. At present, there is no cure for MS due to the inability to repair damaged myelin. Although the neurotrophin brain derived neurotrophic factor (BDNF) has a beneficial role in myelin repair, these effects may be hampered by the over-expression of a transcriptional repressor isoform of methyl CpG binding protein 2 (MeCP2) called MeCP2E1. We hypothesize that following experimental autoimmune encephalomyelitis (EAE)-induced myelin damage, the immune system induction of the pathogenic MeCP2E1 isoform hampers the myelin repair process by repressing BDNF expression. Using an EAE model of MS, we identify the temporal gene and protein expression changes of MeCP2E1, MeCP2E2 and BDNF. The expression changes of these key biological targets were then correlated with the temporal changes in neurological disability scores (NDS) over the entire disease course. Our results indicate that MeCP2E1 mRNA levels are elevated in EAE animals relative to naïve control (NC) and active control (AC) animals during all time points of disease progression. Our results suggest that the EAE-induced elevations in MeCP2E1 expression contribute to the repressed BDNF production in the spinal cord (SC). The sub-optimal levels of BDNF result in sustained NDS and associated myelin damage throughout the entire disease course. Conversely, we observed no significant differences in the expression patterns displayed for the MeCP2E2 isoform amongst our experimental groups. However, our results demonstrate that baseline protein expression ratios between the MeCP2E1 versus MeCP2E2 isoforms in the SC are higher than those identified within the dorsal root ganglia (DRG). Thus, the DRG represents a more conducive environment than that of the SC for BDNF production and transport to the CNS to assist in myelin repair. Henceforth, the sub-optimal BDNF levels we report in the SC may arise from the elevated MeCP2E1 vs. MeCP2E2 ratio in the SC that creates a more hostile environment thereby preventing local BDNF production. At the level of transcript, we demonstrate that EAE-induces the pathological enhanced expression of MeCP2E1 that contributes to enhanced NDS during the entire disease course. Thus, the pathological induction of the MeCP2E1 isoform contributes to the disruption of the normal homeostatic signaling equilibrium network that exists between cytokines, neurotrophins and chemokines that regulate the myelin repair process by repressing BDNF. Our research suggests that the elevated ratio of MeCP2E1 relative to MeCP2E2 may be a useful diagnostic marker that clinicians can utilize to determine the degree of neurological disability with associated myelin damage. The elevated MeCP2E1 vs. MeCP2E2 ratios (E1/E2) in the SC prevent BDNF from reaching optimal levels required for myelin repair. Thus, the lower E1/E2 ratios in the DRG, allow the DRG to serve as a weak secondary compensatory mechanism for enhanced production and delivery of BDNF to the SC to try to assist in myelin repair.
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Affiliation(s)
- Tina Khorshid Ahmad
- College of Pharmacy, Faculty of Health Sciences, University of Manitoba, Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Ting Zhou
- College of Pharmacy, Faculty of Health Sciences, University of Manitoba, Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Khaled AlTaweel
- College of Pharmacy, Faculty of Health Sciences, University of Manitoba, Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Claudia Cortes
- College of Pharmacy, Faculty of Health Sciences, University of Manitoba, Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Ryan Lillico
- College of Pharmacy, Faculty of Health Sciences, University of Manitoba, Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Ted Martin Lakowski
- College of Pharmacy, Faculty of Health Sciences, University of Manitoba, Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Kiana Gozda
- College of Pharmacy, Faculty of Health Sciences, University of Manitoba, Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Michael Peter Namaka
- College of Pharmacy, Faculty of Health Sciences, University of Manitoba, Manitoba, Winnipeg, MB R3E 0T5, Canada.
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China.
- Department of Medical Rehabilitation, College of Medicine, Faculty of Health Sciences, Winnipeg, MB R3E 0T6, Canada.
- Department of Internal Medicine, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3A 1R9, Canada.
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Li X, Zhang Y, Yan Y, Ciric B, Ma CG, Gran B, Curtis M, Rostami A, Zhang GX. Neural Stem Cells Engineered to Express Three Therapeutic Factors Mediate Recovery from Chronic Stage CNS Autoimmunity. Mol Ther 2016; 24:1456-1469. [PMID: 27203442 PMCID: PMC5023377 DOI: 10.1038/mt.2016.104] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 04/25/2016] [Indexed: 02/06/2023] Open
Abstract
Treatment of chronic neurodegenerative diseases such as multiple sclerosis (MS) remains a major challenge. Here we genetically engineer neural stem cells (NSCs) to produce a triply therapeutic cocktail comprising IL-10, NT-3, and LINGO-1-Fc, thus simultaneously targeting all mechanisms underlie chronicity of MS in the central nervous system (CNS): persistent inflammation, loss of trophic support for oligodendrocytes and neurons, and accumulation of neuroregeneration inhibitors. After transplantation, NSCs migrated into the CNS inflamed foci and delivered these therapeutic molecules in situ. NSCs transduced with one, two, or none of these molecules had no or limited effect when injected at the chronic stage of experimental autoimmune encephalomyelitis; cocktail-producing NSCs, in contrast, mediated the most effective recovery through inducing M2 macrophages/microglia, reducing astrogliosis, and promoting axonal integrity and endogenous oligodendrocyte/neuron differentiation. These engineered NSCs simultaneously target major mechanisms underlying chronicity of multiple sclerosis (MS) and encephalomyelitis (EAE), thus representing a novel and potentially effective therapy for the chronic stage of MS, for which there is currently no treatment available.
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Affiliation(s)
- Xing Li
- Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, Northwest China National Engineering Laboratory for Resource Development of Endangered Crude Drugs, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yuan Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, Northwest China National Engineering Laboratory for Resource Development of Endangered Crude Drugs, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yaping Yan
- Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.,Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, Northwest China National Engineering Laboratory for Resource Development of Endangered Crude Drugs, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Bogoljub Ciric
- Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Cun-Gen Ma
- Institute of Brain Science, Department of Neurology, Shanxi Datong University Medical School, Datong, China
| | - Bruno Gran
- Clinical Neurology Research Group, Division of Clinical Neuroscience, University of Nottingham School of Medicine, Nottingham, UK
| | - Mark Curtis
- Department of Neuropathology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Abdolmohamad Rostami
- Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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Zhu L, Pan QX, Zhang XJ, Xu YM, Chu YJ, Liu N, Lv P, Zhang GX, Kan QC. Protective effects of matrine on experimental autoimmune encephalomyelitis via regulation of ProNGF and NGF signaling. Exp Mol Pathol 2015; 100:337-43. [PMID: 26681653 DOI: 10.1016/j.yexmp.2015.12.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 12/06/2015] [Indexed: 10/22/2022]
Abstract
Inflammation, demyelination, oligodendrocyte (OLG) death, and axonal degeneration are primary characteristics of multiple sclerosis (MS) and its animal model, experimental autoimmune encephalomyelitis (EAE). OLGs generate myelin sheaths that surround axons, while damage to OLGs leads to demyelination and neurological functional deficit. Matrine (MAT), a quinolizidine alkaloid derived from the herb Radix Sophorae Flave, has been recently found to effectively ameliorate clinical signs in EAE. Its therapeutic mechanism has, however, not been completely elucidated. In the present study, we found that MAT retarded the disease process, attenuated the clinical severity of EAE rats, ameliorated inflammation and demyelination, and suppressed the apoptosis of OLGs in the central nervous system (CNS) of EAE rats. In addition, MAT markedly blocked increased expression of the proNGF-p75(NTR) death signaling complex, which is known to mediate OLG death in EAE animals. At the same time, MAT also prevented a decrease in the levels of NGF and its receptor TrkA, which together mediate the cell survival pathway and differentiation of OLGs. ProNGF, NGF, and the downstream effector proteins play an important role in the growth, differentiation, and apoptosis of OLGs as well as the reparative response to neuronal damage. These findings thus indicate that MAT improves clinical severity of EAE in part by reducing OLG apoptosis via restoring the ratios of proNGF:NGF and the respective receptors p75(NTR):TrkA in vivo. Taken together, these results suggest that MAT may be a promising agent for MS treatment based on its protective effect on OLGs.
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Affiliation(s)
- Lin Zhu
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Qing-xia Pan
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xiao-Jian Zhang
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Yu-Ming Xu
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Yao-juan Chu
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Nan Liu
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Peng Lv
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA 19107, USA.
| | - Quan-Cheng Kan
- Department of Pharmacy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
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Carito V, Nicolò SD, Fiore M, Maccarone M, Tirassa P. Ocular nerve growth factor administration (oNGF) affects disease severity and inflammatory response in the brain of rats with experimental allergic encephalitis (EAE). Can J Physiol Pharmacol 2015; 94:177-184. [PMID: 26629995 DOI: 10.1139/cjpp-2015-0133] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The rat acute experimental autoimmune encephalomyelitis (EAE) model was used to investigate the effects of ocularly administered nerve growth factor (oNGF) on disease development and brain inflammation. It was found that oNGF affects clinical scores. However, EAE rats receiving oNGF treatment showed reduced expression of pro-inflammatory cytokines and chemokines in the cerebellum and the hippocampus, but not in the frontal cortex. These data confirm the ability of oNGF to counteract the effects of EAE in the brain and suggest a role for oNGF in the regulation of local inflammatory responses observed in the acute phase of EAE.
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Affiliation(s)
- Valentina Carito
- Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy.,Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy
| | - Sara De Nicolò
- Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy.,Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy
| | - Marco Fiore
- Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy.,Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy
| | - Mattia Maccarone
- Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy.,Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy
| | - Paola Tirassa
- Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy.,Institute of Cell Biology and Neurobiology, National Research Council (CNR/IRCCS) Santa Lucia Foundation, Via del Fosso di Fiorano, 64 (00143) Rome, Italy
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42
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KhorshidAhmad T, Acosta C, Cortes C, Lakowski TM, Gangadaran S, Namaka M. Transcriptional Regulation of Brain-Derived Neurotrophic Factor (BDNF) by Methyl CpG Binding Protein 2 (MeCP2): a Novel Mechanism for Re-Myelination and/or Myelin Repair Involved in the Treatment of Multiple Sclerosis (MS). Mol Neurobiol 2015; 53:1092-1107. [PMID: 25579386 DOI: 10.1007/s12035-014-9074-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 12/29/2014] [Indexed: 12/13/2022]
Abstract
Multiple sclerosis (MS) is a chronic progressive, neurological disease characterized by the targeted immune system-mediated destruction of central nervous system (CNS) myelin. Autoreactive CD4+ T helper cells have a key role in orchestrating MS-induced myelin damage. Once activated, circulating Th1-cells secrete a variety of inflammatory cytokines that foster the breakdown of blood-brain barrier (BBB) eventually infiltrating into the CNS. Inside the CNS, they become reactivated upon exposure to the myelin structural proteins and continue to produce inflammatory cytokines such as tumor necrosis factor α (TNFα) that leads to direct activation of antibodies and macrophages that are involved in the phagocytosis of myelin. Proliferating oligodendrocyte precursors (OPs) migrating to the lesion sites are capable of acute remyelination but unable to completely repair or restore the immune system-mediated myelin damage. This results in various permanent clinical neurological disabilities such as cognitive dysfunction, fatigue, bowel/bladder abnormalities, and neuropathic pain. At present, there is no cure for MS. Recent remyelination and/or myelin repair strategies have focused on the role of the neurotrophin brain-derived neurotrophic factor (BDNF) and its upstream transcriptional repressor methyl CpG binding protein (MeCP2). Research in the field of epigenetic therapeutics involving histone deacetylase (HDAC) inhibitors and lysine acetyl transferase (KAT) inhibitors is being explored to repress the detrimental effects of MeCP2. This review will address the role of MeCP2 and BDNF in remyelination and/or myelin repair and the potential of HDAC and KAT inhibitors as novel therapeutic interventions for MS.
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Affiliation(s)
- Tina KhorshidAhmad
- College of Pharmacy, University of Manitoba, 750 McDermot Avenue, Winnipeg, R3E 0T5, Manitoba, Canada.,Manitoba Multiple Sclerosis Research Network Organization (MMSRNO), Winnipeg, Canada
| | - Crystal Acosta
- College of Pharmacy, University of Manitoba, 750 McDermot Avenue, Winnipeg, R3E 0T5, Manitoba, Canada.,Manitoba Multiple Sclerosis Research Network Organization (MMSRNO), Winnipeg, Canada
| | - Claudia Cortes
- College of Pharmacy, University of Manitoba, 750 McDermot Avenue, Winnipeg, R3E 0T5, Manitoba, Canada.,Manitoba Multiple Sclerosis Research Network Organization (MMSRNO), Winnipeg, Canada
| | - Ted M Lakowski
- College of Pharmacy, University of Manitoba, 750 McDermot Avenue, Winnipeg, R3E 0T5, Manitoba, Canada.,Manitoba Multiple Sclerosis Research Network Organization (MMSRNO), Winnipeg, Canada
| | - Surendiran Gangadaran
- College of Pharmacy, University of Manitoba, 750 McDermot Avenue, Winnipeg, R3E 0T5, Manitoba, Canada.,Manitoba Multiple Sclerosis Research Network Organization (MMSRNO), Winnipeg, Canada
| | - Michael Namaka
- College of Pharmacy, University of Manitoba, 750 McDermot Avenue, Winnipeg, R3E 0T5, Manitoba, Canada. .,Manitoba Multiple Sclerosis Research Network Organization (MMSRNO), Winnipeg, Canada. .,College of Medicine, University of Manitoba, Winnipeg, Canada. .,School of Medical Rehabilitation, College of Medicine, University of Manitoba, Winnipeg, Canada.
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43
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Bracci-Laudiero L, De Stefano ME. NGF in Early Embryogenesis, Differentiation, and Pathology in the Nervous and Immune Systems. Curr Top Behav Neurosci 2016; 29:125-52. [PMID: 26695167 DOI: 10.1007/7854_2015_420] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The physiology of NGF is extremely complex, and although the study of this neurotrophin began more than 60 years ago, it is far from being concluded. NGF, its precursor molecule pro-NGF, and their different receptor systems (i.e., TrkA, p75NTR, and sortilin) have key roles in the development and adult physiology of both the nervous and immune systems. Although the NGF receptor system and the pathways activated are similar for all types of cells sensitive to NGF, the effects exerted during embryonic differentiation and in committed mature cells are strikingly different and sometimes opposite. Bearing in mind the pleiotropic effects of NGF, alterations in its expression and synthesis, as well as variations in the types of receptor available and in their respective levels of expression, may have profound effects and play multiple roles in the development and progression of several diseases. In recent years, the use of NGF or of inhibitors of its receptors has been prospected as a therapeutic tool in a variety of neurological diseases and injuries. In this review, we outline the different roles played by the NGF system in various moments of nervous and immune system differentiation and physiology, from embryonic development to aging. The data collected over the past decades indicate that NGF activities are highly integrated among systems and are necessary for the maintenance of homeostasis. Further, more integrated and multidisciplinary studies should take into consideration these multiple and interactive aspects of NGF physiology in order to design new therapeutic strategies based on the manipulation of NGF and its intracellular pathways.
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Abstract
Abnormal expression of nerve growth factor (NGF) was found in adenomyosis (AM). We collected AM foci from patients and eutopic endometrium from non-AM controls. Endometrium stromal cells (ESCs) were cultured. Different levels of 17β-estradiol, tumor necrosis factor (TNF), CoCl2, and H2O2 were added to the culture system separately, then the expression level of NGF in ESCs was detected. After adding different levels of NGF, the proliferation and apoptosis of ESCs and aromatase expression were detected. We found that 17β-estradiol promoted NGF production in AM ESCs but not in control ESCs; TNF promoted NGF production in both AM and control ESCs; and CoCl2 inhibited NGF production in control ESCs, but had no effect in AM ESCs. Nerve growth factor promoted the proliferation and synthesis of aromatase in AM ESCs. In conclusion, locally increased estrogen levels and inflammation may cause increased NGF production in the uterus of patients with AM. Nerve growth factor stimulated the proliferation and increased aromatase expression of ESCs from AM foci, suggesting NGF might contribute to the pathology and etiology of AM.
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Affiliation(s)
- Yan Li
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, Shanghai, China Reproductive Medicine Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shien Zou
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, Shanghai, China
| | - Xian Xia
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, Shanghai, China
| | - Shaofen Zhang
- Department of Gynaecology, Obstetrics and Gynaecology Hospital, Fudan University, Shanghai, China
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45
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Villanueva I, Alva-Sánchez C, Pacheco-Rosado J. The role of thyroid hormones as inductors of oxidative stress and neurodegeneration. Oxid Med Cell Longev 2013; 2013:218145. [PMID: 24386502 PMCID: PMC3872098 DOI: 10.1155/2013/218145] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 11/08/2013] [Indexed: 01/14/2023]
Abstract
Reactive oxygen species (ROS) are oxidizing agents amply implicated in tissue damage. ROS production is inevitably linked to ATP synthesis in most cells, and the rate of production is related to the rate of cell respiration. Multiple antioxidant mechanisms limit ROS dispersion and interaction with cell components, but, when the balance between ROS production and scavenging is lost, oxidative damage develops. Many traits of aging are related to oxidative damage by ROS, including neurodegenerative diseases. Thyroid hormones (THs) are a major factor controlling metabolic and respiratory rates in virtually all cell types in mammals. The general metabolic effect of THs is a relative acceleration of the basal metabolism that includes an increase of the rate of both catabolic and anabolic reactions. THs are related to oxidative stress not only by their stimulation of metabolism but also by their effects on antioxidant mechanisms. Thyroid dysfunction increases with age, so changes in THs levels in the elderly could be a factor affecting the development of neurodegenerative diseases. However, the relationship is not always clear. In this review, we analyze the participation of thyroid hormones on ROS production and oxidative stress, and the way the changes in thyroid status in aging are involved in neurodegenerative diseases.
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Affiliation(s)
- I. Villanueva
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, IPN. Prol. Carpio y Plan de Ayala, s/n, 11340 México City, DF, Mexico
| | - C. Alva-Sánchez
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, IPN. Prol. Carpio y Plan de Ayala, s/n, 11340 México City, DF, Mexico
| | - J. Pacheco-Rosado
- Departamento de Fisiología, Escuela Nacional de Ciencias Biológicas, IPN. Prol. Carpio y Plan de Ayala, s/n, 11340 México City, DF, Mexico
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Zhu W, Acosta C, MacNeil B, Cortes C, Intrater H, Gong Y, Namaka M. Elevated expression of fractalkine (CX3CL1) and fractalkine receptor (CX3CR1) in the dorsal root ganglia and spinal cord in experimental autoimmune encephalomyelitis: implications in multiple sclerosis-induced neuropathic pain. Biomed Res Int 2013; 2013:480702. [PMID: 24175290 DOI: 10.1155/2013/480702] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 07/02/2013] [Accepted: 07/15/2013] [Indexed: 12/24/2022]
Abstract
Multiple sclerosis (MS) is a central nervous system (CNS) disease resulting from a targeted autoimmune-mediated attack on myelin proteins in the CNS. The release of Th1 inflammatory mediators in the CNS activates macrophages, antibodies, and microglia resulting in myelin damage and the induction of neuropathic pain (NPP). Molecular signaling through fractalkine (CX3CL1), a nociceptive chemokine, via its receptor (CX3CR1) is thought to be associated with MS-induced NPP. An experimental autoimmune encephalomyelitis (EAE) model of MS was utilized to assess time dependent gene and protein expression changes of CX3CL1 and CX3CR1. Results revealed significant increases in mRNA and the protein expression of CX3CL1 and CX3CR1 in the dorsal root ganglia (DRG) and spinal cord (SC) 12 days after EAE induction compared to controls. This increased expression correlated with behavioural thermal sensory abnormalities consistent with NPP. Furthermore, this increased expression correlated with the peak neurological disability caused by EAE induction. This is the first study to identify CX3CL1 signaling through CX3CR1 via the DRG/SC anatomical connection that represents a critical pathway involved in NPP induction in an EAE model of MS.
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