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Molecular Biomarkers in Multiple Sclerosis and Its Related Disorders

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Pathology, Diagnostics, and Therapeutics".

Deadline for manuscript submissions: closed (29 February 2020) | Viewed by 27785

Special Issue Editor


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Guest Editor
Caritas Hospital, Academic Teaching Hospital of the University of Wuerzburg, Department of Neurology, Bad Mergentheim, Germany
Interests: multiple sclerosis; neuromyelitis optica spectrum disorder; neurosarcoidosis; molecular biomarkers; therapeutic trials; mechanism of action; adverse effect; cerebrospinal fluid; blood-brain barrier

Special Issue Information

Dear Colleagues,

Molecular biomarkers represent a unique accessible window into the human central nervous system (CNS) and continue to shape our understanding of pathophysiology and therapeutic mechanisms of action in autoimmune inflammatory CNS disorders. Molecular biomarkers are being used in routine clinical practice to diagnose these disorders, inform prognosis and guide therapeutic decisions.

To name a few clinically well-established examples, CSF-specific oligoclonal immunoglobulin G bands in multiple sclerosis demonstrate the chronic inflammatory nature of the disease, help to exclude differential diagnoses and are of prognostic relevance. With its reported specificity of 97%, for multiple sclerosis, the intrathecal, polyspecific antiviral immune response strongly supports the diagnosis. Serum immunoglobulin G antibodies against aquaporin-4 and, more recently, myelin oligodendrocyte glycoprotein both allowed new disease entities distinct from multiple sclerosis to be defined, which has important therapeutic implications. Neurofilament light chain levels in cerebrospinal fluid and, more importantly, in blood may serve as a valid surrogate marker of CNS neuronal damage and will soon be used in clinical practice. Serum immunoglobulin G antibodies against the JC virus are invaluable in guiding treatment decisions in multiple sclerosis patients to be receiving natalizumab.

Undeniably, recent decades have seen myriad molecular biomarker studies in multiple sclerosis resulting in a dead end. The examples above, however, demonstrate the eminent clinical importance that molecular biomarkers have nevertheless gained in the field of autoimmune inflammatory CNS disorders.

I invite authors to submit experimental work or critical reviews that align with the goal of this Special Issue of increasing the understanding of how molecular biomarkers may deepen pathophysiological understanding or inform diagnosis, prognosis and therapeutic management in patients with multiple sclerosis or its related disorders. As a Guest Editor, I guarantee that every manuscript submitted for this Special Issue will undergo rapid but careful evaluation.

Dr. Mathias Buttmann
Guest Editor

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Keywords

  • multiple sclerosis
  • neuromyelitis optica spectrum disorder
  • neurosarcoidosis
  • molecular biomarker
  • diagnosis
  • prognosis
  • therapy

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Published Papers (3 papers)

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Research

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15 pages, 3354 KiB  
Article
TNFAIP3 Deficiency Affects Monocytes, Monocytes-Derived Cells and Microglia in Mice
by Francesca Montarolo, Simona Perga, Carlotta Tessarolo, Michela Spadaro, Serena Martire and Antonio Bertolotto
Int. J. Mol. Sci. 2020, 21(8), 2830; https://doi.org/10.3390/ijms21082830 - 18 Apr 2020
Cited by 5 | Viewed by 4035
Abstract
The intracellular-ubiquitin-ending-enzyme tumor necrosis factor alpha-induced protein 3 (TNFAIP3) is a potent inhibitor of the pro-inflammatory nuclear factor kappa-light-chain-enhancer of activated B cell (NF-kB) pathway. Single nucleotide polymorphisms in TNFAIP3 locus have been associated to autoimmune inflammatory disorders, including Multiple Sclerosis (MS). Previously, [...] Read more.
The intracellular-ubiquitin-ending-enzyme tumor necrosis factor alpha-induced protein 3 (TNFAIP3) is a potent inhibitor of the pro-inflammatory nuclear factor kappa-light-chain-enhancer of activated B cell (NF-kB) pathway. Single nucleotide polymorphisms in TNFAIP3 locus have been associated to autoimmune inflammatory disorders, including Multiple Sclerosis (MS). Previously, we reported a TNFAIP3 down-regulated gene expression level in blood and specifically in monocytes obtained from treatment-naïve MS patients compared to healthy controls (HC). Myeloid cells exert a key role in the pathogenesis of MS. Here we evaluated the effect of specific TNFAIP3 deficiency in myeloid cells including monocytes, monocyte-derived cells (M-MDC) and microglia analyzing lymphoid organs and microglia of mice. TNFAIP3 deletion is induced using conditional knock-out mice for myeloid lineage. Flow-cytometry and histological procedures were applied to assess the immune cell populations of spleen, lymph nodes and bone marrow and microglial cell density in the central nervous system (CNS), respectively. We found that TNFAIP3 deletion in myeloid cells induces a reduction in body weight, a decrease in the number of M-MDC and of common monocyte and granulocyte precursor cells (CMGPs). We also reported that the lack of TNFAIP3 in myeloid cells induces an increase in microglial cell density. The results suggest that TNFAIP3 in myeloid cells critically controls the development of M-MDC in lymphoid organ and of microglia in the CNS. Full article
(This article belongs to the Special Issue Molecular Biomarkers in Multiple Sclerosis and Its Related Disorders)
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Review

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21 pages, 385 KiB  
Review
Molecular Biomarkers in Multiple Sclerosis and Its Related Disorders: A Critical Review
by Maryam Gul, Amirhossein Azari Jafari, Muffaqam Shah, Seyyedmohammadsadeq Mirmoeeni, Safee Ullah Haider, Sadia Moinuddin and Ammar Chaudhry
Int. J. Mol. Sci. 2020, 21(17), 6020; https://doi.org/10.3390/ijms21176020 - 21 Aug 2020
Cited by 13 | Viewed by 6785
Abstract
Multiple sclerosis (MS) is a chronic autoimmune disease affecting the central nervous system (CNS) which can lead to severe disability. Several diseases can mimic the clinical manifestations of MS. This can often lead to a prolonged period that involves numerous tests and investigations [...] Read more.
Multiple sclerosis (MS) is a chronic autoimmune disease affecting the central nervous system (CNS) which can lead to severe disability. Several diseases can mimic the clinical manifestations of MS. This can often lead to a prolonged period that involves numerous tests and investigations before a definitive diagnosis is reached. As well as the possibility of misdiagnosis. Molecular biomarkers can play a unique role in this regard. Molecular biomarkers offer a unique view into the CNS disorders. They help us understand the pathophysiology of disease as well as guiding our diagnostic, therapeutic, and prognostic approaches in CNS disorders. This review highlights the most prominent molecular biomarkers found in the literature with respect to MS and its related disorders. Based on numerous recent clinical and experimental studies, we demonstrate that several molecular biomarkers could very well aid us in differentiating MS from its related disorders. The implications of this work will hopefully serve clinicians and researchers alike, who regularly deal with MS and its related disorders. Full article
(This article belongs to the Special Issue Molecular Biomarkers in Multiple Sclerosis and Its Related Disorders)
22 pages, 579 KiB  
Review
Neurological Syndromes Associated with Anti-GAD Antibodies
by Maëlle Dade, Giulia Berzero, Cristina Izquierdo, Marine Giry, Marion Benazra, Jean-Yves Delattre, Dimitri Psimaras and Agusti Alentorn
Int. J. Mol. Sci. 2020, 21(10), 3701; https://doi.org/10.3390/ijms21103701 - 24 May 2020
Cited by 87 | Viewed by 16385
Abstract
Glutamic acid decarboxylase (GAD) is an intracellular enzyme whose physiologic function is the decarboxylation of glutamate to gamma-aminobutyric acid (GABA), the main inhibitory neurotransmitter within the central nervous system. GAD antibodies (Ab) have been associated with multiple neurological syndromes, including stiff-person syndrome, cerebellar [...] Read more.
Glutamic acid decarboxylase (GAD) is an intracellular enzyme whose physiologic function is the decarboxylation of glutamate to gamma-aminobutyric acid (GABA), the main inhibitory neurotransmitter within the central nervous system. GAD antibodies (Ab) have been associated with multiple neurological syndromes, including stiff-person syndrome, cerebellar ataxia, and limbic encephalitis, which are all considered to result from reduced GABAergic transmission. The pathogenic role of GAD Ab is still debated, and some evidence suggests that GAD autoimmunity might primarily be cell-mediated. Diagnosis relies on the detection of high titers of GAD Ab in serum and/or in the detection of GAD Ab in the cerebrospinal fluid. Due to the relative rarity of these syndromes, treatment schemes and predictors of response are poorly defined, highlighting the unmet need for multicentric prospective trials in this population. Here, we reviewed the main clinical characteristics of neurological syndromes associated with GAD Ab, focusing on pathophysiologic mechanisms. Full article
(This article belongs to the Special Issue Molecular Biomarkers in Multiple Sclerosis and Its Related Disorders)
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