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Aliyu M, Zohora FT, Ceylan A, Hossain F, Yazdani R, Azizi G. Immunopathogenesis of multiple sclerosis: molecular and cellular mechanisms and new immunotherapeutic approaches. Immunopharmacol Immunotoxicol 2024; 46:355-377. [PMID: 38634438 DOI: 10.1080/08923973.2024.2330642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 03/09/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Multiple sclerosis (MS) is a central nervous system (CNS) demyelinating autoimmune disease with increasing global prevalence. It predominantly affects females, especially those of European descent. The interplay between environmental factors and genetic predisposition plays a crucial role in MS etiopathogenesis. METHODS We searched recent relevant literature on reputable databases, which include, PubMed, Embase, Web of Science, Scopus, and ScienceDirect using the following keywords: multiple sclerosis, pathogenesis, autoimmunity, demyelination, therapy, and immunotherapy. RESULTS Various animal models have been employed to investigate the MS etiopathogenesis and therapeutics. Autoreactive T cells within the CNS recruit myeloid cells through chemokine expression, leading to the secretion of inflammatory cytokines driving the MS pathogenesis, resulting in demyelination, gliosis, and axonal loss. Key players include T cell lymphocytes (CD4+ and CD8+), B cells, and neutrophils. Signaling dysregulation in inflammatory pathways and the immunogenetic basis of MS are essential considerations for any successful therapy to MS. Data indicates that B cells and neutrophils also have significant roles in MS, despite the common belief that T cells are essential. High neutrophil-to-lymphocyte ratios correlate with MS severity, indicating their contribution to disease progression. Dysregulated signaling pathways further exacerbate MS progression. CONCLUSION MS remains incurable, but disease-modifying therapies, monoclonal antibodies, and immunomodulatory drugs offer hope for patients. Research on the immunogenetics and immunoregulatory functions of gut microbiota is continuing to provide light on possible treatment avenues. Understanding the complex interplay between genetic predisposition, environmental factors, and immune dysregulation is critical for developing effective treatments for MS.
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Affiliation(s)
- Mansur Aliyu
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, International Campus, TUMS-IC, Tehran, Iran
- Department of Medical Microbiology, Faculty of Clinical Science, College of Health Sciences, Bayero University, Kano, Nigeria
| | - Fatema Tuz Zohora
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Malaysia
| | - Ayca Ceylan
- Medical Faculty, Department of Pediatrics, Division of Immunology and Allergy, Selcuk University, Konya, Turkey
| | - Fariha Hossain
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Malaysia
| | - Reza Yazdani
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Gholamreza Azizi
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
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Krupp LB, Vieira MC, Toledano H, Peneva D, Druyts E, Wu P, Boulos FC. A Review of Available Treatments, Clinical Evidence, and Guidelines for Diagnosis and Treatment of Pediatric Multiple Sclerosis in the United States. J Child Neurol 2019; 34:612-620. [PMID: 31234708 DOI: 10.1177/0883073819855592] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pediatric multiple sclerosis is associated with challenges in prompt diagnosis and uncertainty regarding optimal treatment. This review aimed to identify treatment guidelines or consensus statements for pediatric patients with multiple sclerosis, US Food and Drug Administration (FDA)-approved treatment options for pediatric multiple sclerosis, and any randomized controlled trials and observational studies examining available pharmacologic treatments in the pediatric multiple sclerosis population. Literature searches were performed in MEDLINE (1946-2016), EMBASE (1974-2016), and the Cochrane Central Register of Controlled Trials to identify treatment guidelines or consensus statements, pediatric multiple sclerosis treatment approvals, and randomized controlled trials and observation studies that examine the safety and effectiveness of available disease-modifying therapies. Only 3 consensus statements provided recommendations for pharmacologic treatments for children, all 3 published before the most recent revisions of the pediatric multiple sclerosis diagnostic guidelines. Despite the changes to the clinical landscape of pediatric multiple sclerosis with the introduction of diagnostic guidelines, fingolimod is the only FDA-approved treatment for pediatric multiple sclerosis in the United States. The effectiveness and safety of other disease-modifying therapies suggested by consensus statements have been reported in relatively small prospective and retrospective observational studies. Clinical evidence from a recently completed randomized controlled trial and future global registries can inform treatment decisions for the pediatric multiple sclerosis population.
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Affiliation(s)
| | | | - Haley Toledano
- 2 Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
| | - Desi Peneva
- 3 Precision Health Economics, Los Angeles, CA, USA
| | | | - Ping Wu
- 4 Precision Xtract, Vancouver, BC, USA
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Vitaliti G, Tabatabaie O, Matin N, Ledda C, Pavone P, Lubrano R, Serra A, Di Mauro P, Cocuzza S, Falsaperla R. The usefulness of immunotherapy in pediatric neurodegenerative disorders: A systematic review of literature data. Hum Vaccin Immunother 2016; 11:2749-63. [PMID: 26266339 DOI: 10.1080/21645515.2015.1061161] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Immunotherapeutic strategies to treat neurodegenerative disorders have inspired the scientific community. The aim of our review is to address the translational aspects of neuroimmunology to describe the efficacy of immunotherapy in the treatment of pediatric neurodegenerative disorders. In the studies we analyzed IVIG were found to be efficient in the treatment of post-streptococcal neurodegenerative disorders, even if in PANDAS, plasma-exchange (PE) showed a higher efficiency. IVIG were also successfully used in ADEM and Guillan-Barré syndrome. In Sydenham Chorea the use of methylprednisolone was found in most cases as efficient as IVIG, while in Tourette's Syndrome, Colecoxib was successfully used in one patient. Pediatric Multiple Sclerosis seems to respond better to immunosuppressant agents (Mitoxantrone, Cyclophosphamide, Natalizumab), as well as Neuromyelitis optica (Rituximab, Mycofenolate). The importance of this review relies in the attempt to draw standardized guidelines for immunotherapy in pediatric neurodegeneratve disorders.
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Affiliation(s)
- Giovanna Vitaliti
- a Acute and Emergency Paediatric and General Paediatric Operative Unit; Policlinico-Vittorio Emanuele Hospital; University of Catania ; Catania , Italy
| | | | - Nassim Matin
- b School of Medicine; Tehran University of Medical Sciences ; Tehran , Iran
| | - Caterina Ledda
- c Hygiene and Public Health; Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia"; University of Catania ; Catania , Italy
| | - Piero Pavone
- a Acute and Emergency Paediatric and General Paediatric Operative Unit; Policlinico-Vittorio Emanuele Hospital; University of Catania ; Catania , Italy
| | - Riccardo Lubrano
- d Pediatric Department ; Pediatric Nephrology Operative Unit of the Sapienza University of Rome ; Rome , Italy
| | - Agostino Serra
- e ENT Department G.F. Ingrassia ; Policlinico-Vittorio Emanuele University Hospital; University of Catania ; Catania , Italy
| | - Paola Di Mauro
- e ENT Department G.F. Ingrassia ; Policlinico-Vittorio Emanuele University Hospital; University of Catania ; Catania , Italy
| | - Salvatore Cocuzza
- e ENT Department G.F. Ingrassia ; Policlinico-Vittorio Emanuele University Hospital; University of Catania ; Catania , Italy
| | - Raffaele Falsaperla
- a Acute and Emergency Paediatric and General Paediatric Operative Unit; Policlinico-Vittorio Emanuele Hospital; University of Catania ; Catania , Italy
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Jancic J, Nikolic B, Ivancevic N, Djuric V, Zaletel I, Stevanovic D, Peric S, van den Anker JN, Samardzic J. Multiple Sclerosis in Pediatrics: Current Concepts and Treatment Options. Neurol Ther 2016; 5:131-143. [PMID: 27640189 PMCID: PMC5130919 DOI: 10.1007/s40120-016-0052-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Indexed: 02/03/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic, autoimmune, inflammatory, demyelinating disease of the central nervous system. MS is increasingly recognized in the pediatric population, and it is usually diagnosed around 15 years of age. The exact etiology of MS is still not known, although autoimmune, genetic, and environmental factors play important roles in its development, making it a multifactorial disease. The disease in children almost always presents in the relapsing-remittent form. The therapy involves treatment of relapses, and immunomodulatory and symptomatic treatment. The treatment of children with MS has to be multidisciplinary and include pediatric neurologists, ophthalmologists, psychologists, physiotherapists, and if necessary, pediatric psychiatrists and pharmacologists. The basis of MS therapy should rely on drugs that are able to modify the course of the disease, i.e. immunomodulatory drugs. These drugs can be subdivided into two general categories: first-line immunomodulatory therapy (interferon beta-1a, interferon beta-1b, glatiramer acetate) and second-line immunomodulatory therapy (natalizumab, mitoxantrone, fingolimod, teriflunomide, azathioprine, rituximab, dimethyl fumarate, daclizumab). Treatment of relapses involves the use of high intravenous doses of corticosteroids, administration of intravenous immunoglobulins, and plasmapheresis. We summarize here the current available information related to the etiology and treatment options in MS. Early administration of immunomodulatory therapy is beneficial in adults, while more studies are needed to prove their effectiveness in pediatric populations. Therefore, pediatric MS still represents a great challenge for both, the early and correct diagnosis, as well as its treatment.
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Affiliation(s)
- Jasna Jancic
- Clinic of Neurology and Psychiatry for Children and Youth, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Blazo Nikolic
- Clinic of Neurology and Psychiatry for Children and Youth, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Nikola Ivancevic
- Clinic of Neurology and Psychiatry for Children and Youth, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Vesna Djuric
- Clinic of Neurology and Psychiatry for Children and Youth, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Ivan Zaletel
- Institute of Histology and Embryology "Aleksandar Đ. Kostić", Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Dejan Stevanovic
- Clinic of Neurology and Psychiatry for Children and Youth, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Sasa Peric
- Clinic of Gastroenterology and Hepatology, Military Medical Academy, Belgrade, Serbia
| | - John N van den Anker
- Division of Paediatric Pharmacology and Pharmacometrics, University of Basel Children's Hospital, Basel, Switzerland.,Division of Pediatric Clinical Pharmacology, Children's National Medical Center, Washington, DC, USA.,Intensive Care and Department of Pediatric Surgery, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Janko Samardzic
- Division of Paediatric Pharmacology and Pharmacometrics, University of Basel Children's Hospital, Basel, Switzerland. .,Institute of Pharmacology, Clinical Pharmacology and Toxicology, Medical Faculty, University of Belgrade, Dr Subotica 1, 11129, Belgrade, Serbia.
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Etemadifar M, Nourian SM, Nourian N, Abtahi SH, Sayahi F, Saraf Z, Fereidan-Esfahani M. Early-Onset Multiple Sclerosis in Isfahan, Iran: Report of the Demographic and Clinical Features of 221 Patients. J Child Neurol 2016; 31:932-7. [PMID: 26979097 DOI: 10.1177/0883073816634853] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 12/08/2015] [Indexed: 11/16/2022]
Abstract
It is estimated that early-onset multiple sclerosis multiple sclerosis (early-onset multiple sclerosis) approximately incorporates 3-5% of the multiple sclerosis population. In this report on early-onset multiple sclerosis, the authors aimed to define demographic, clinical and imaging features in a case-series of true-childhood multiple sclerosis and to compare its characteristics with juvenile multiple sclerosis. The authors inspected the records of multiple sclerosis patients who were registered by Isfahan MS Society. Clinical and demographic data of children with less than 16 years of age were reviewed retrospectively. Out of 4536 multiple sclerosis patients referred to the authors' center, 221 patients (4.8%) had multiple sclerosis starting at the age of 16 or less (11 true-childhood multiple sclerosis vs 210 juvenile-onset multiple sclerosis); the female to male ratio was 4.81:1. In the mean follow-up period of 6.2 years, 22 patients (10.5%) had positive family history of multiple sclerosis, 196 (88.6%) patients were classified as relapsing-remitting multiple sclerosis, the mean (± SD Expanded Disability Status Scale) was 1.5 ± 1.1 at the last evaluation. The most common initial presentation was optic nerve involvement (36.1%) and cerebellar sign and symptoms (14.6%). In all, 13 patients (5.8%) had experienced seizure in the course of multiple sclerosis. This study indicated that early-onset multiple sclerosis is not rare condition and overwhelmingly affects girls even at prepubertal onset. Physicians should consider multiple sclerosis in suspicious pediatric cases.
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Affiliation(s)
- Masoud Etemadifar
- Department of Neurology, Medical School, Isfahan University of Medical Sciences, Isfahan, Iran Isfahan Research Committee of Multiple Sclerosis (IRCOMS), Isfahan University of Medical Sciences, Isfahan, Iran
| | | | | | - Seyed-Hossein Abtahi
- Isfahan Research Committee of Multiple Sclerosis (IRCOMS), Isfahan University of Medical Sciences, Isfahan, Iran Medical Students' Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farnaz Sayahi
- Isfahan Research Committee of Multiple Sclerosis (IRCOMS), Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zahra Saraf
- Isfahan Research Committee of Multiple Sclerosis (IRCOMS), Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahboobeh Fereidan-Esfahani
- Isfahan Research Committee of Multiple Sclerosis (IRCOMS), Isfahan University of Medical Sciences, Isfahan, Iran Institute of Neuropathology, University of Göttingen, Göttingen, Germany
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