Potential Biomarker and Therapeutic LncRNAs in Multiple Sclerosis Through Targeting Memory B Cells

AbstractMultiple sclerosis (MS) is a chronic autoimmune disease that degenerates the central nervous system (CNS). B cells exacerbate the progression of CNS lesions in MS by producing auto-antibodies, pro-inflammatory cytokines, and presenting auto-antigens to activated T cells. Long non-coding RNAs (lncRNAs) play a crucial role in complex biological processes and their stability in body fluids combined with their tissue specificity make these biomolecules promising biomarker candidates for MS diagnosis. In the current study, we investigated memory B cell-specific lncRNAs located, on average, less than 50  kb from differentially expressed protein-coding genes in MS patients compared to healthy individuals. Moreover, we included in our selection criteria lncRNA transcripts predicted to interact with microRNAs with established involvement in MS. To assess the expression levels of lncRNAs and their adj acent protein-coding genes, quantitative reverse transcription PCR was performed on peripheral blood mononuclear cells samples of 50 MS patients compared to 25 controls. Our results showed that in relapsing MS patients, compared to remitting MS patients and healthy controls, lncRNA RP11-530C5.1 wa s up-regulated while AL928742.12 was down-regulated. Pearson’s correlation tests showed positive correlations between the expression levels of RP11-530C5.1 and AL928742.12 withPAWR andIGHA2, respectively. The results of the ROC curve test demonstrated the potential b...
Source: NeuroMolecular Medicine - Category: Neurology Source Type: research

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In this study, we tested the presence of MOG-Ab and AQP4-Ab in 57 children at first onset of acute neurological symptoms; three clinical subgroups were identified: 12 patients had acquired inflammatory demyelinating CNS syndromes, 11 had other auto immune/immune-mediated disorders of the central and peripheral nervous system and 34 had non-immune-mediated CNS disorders. MOG-Abs were found positive only in a subset of cases in the subgroup with acquired inflammatory demyelinating CNS syndromes (in 2/12 patients, both with non-MS phenotype) and in none of the patients with other autoimmune and immune-mediated disorders of th...
Source: Neurological Sciences - Category: Neurology Source Type: research
Autoimmune hemolytic anemia (AIHA) has been reported after treatment with an anti-CD52 monoclonal antibody (alemtuzumab) in 7 MS cases.1 All underwent positive direct Coombs test, i.e., antibodies to red blood cells (RBCs); however, no autoantibody (Ab) specificity was identified.1 Aquaporin 1 (AQP1), expressed in RBCs2 and human astrocytes,3,4 has been linked with autoimmunity: in some AIHA cases (Abs to Colton group antigens located on AQP1)2 and in some patients with CNS demyelinating disorders.3,4 Therefore, AQP1-Abs deserve investigation as the possible linking cause of the concurrent presence of the 2 disorders. Here...
Source: Neurology Neuroimmunology and Neuroinflammation - Category: Neurology Authors: Tags: Autoimmune diseases, Multiple sclerosis, Devic's syndrome Clinical/Scientific Notes Source Type: research
AbstractPsoriasis (PsO) is a common, systemic, chronic, inflammatory disease characterized by key clinical symptoms, including itching, pain, and scaling. PsO is associated with a high prevalence of comorbidities, including other autoimmune diseases and malignancies. Furthermore, special populations, such as pregnant, pediatric, and elderly patients, and those with erythrodermic PsO, are challenging to treat and require tightly monitored disease and treatment management. Because certain populations have demographic or clinical characteristics that can affect the presentation of PsO and complicate treatment responses, these...
Source: Dermatology and Therapy - Category: Dermatology Source Type: research
AbstractBy the discovery of an antibody to aquaporin 4 (AQP4), the clinical and radiological findings of neuromyelitis optica (NMO) such as diffuse cerebral or longitudinally extended spinal cord lesions had been clarified as distinct features from multiple sclerosis (MS). Pathological studies in NMO demonstrated loss of immunoreactivity to AQP4 and glial fibrillary acidic protein but a relative preservation of myelin basic protein, especially at the lesions with perivascular deposition of immunoglobulins and complements, suggesting autoimmune disease against astrocytes. In recent years, the antibody against myelin oligode...
Source: Clinical and Experimental Neuroimmunology - Category: Neurology Authors: Tags: REVIEW ARTICLE Source Type: research
We examined the oligodendrocyte‐mediated demyelination and axonal injury. To address this issue, we established a new scanning electron microscopy analysis to observe ultrastructural myelin morphology. In addition, we focused on kallik rein 6, a serine protease, secreted by oligodendrocytes in the central nervous system and proposed a new molecular mechanism of kallikrein 6‐mediated demyelination. In this article, we discuss the pathological roles of oligodendrocytes in mouse models of EAE. We also highlight recent findings of abnormal myelin formation and axonal injury in EAE.
Source: Clinical and Experimental Neuroimmunology - Category: Neurology Authors: Tags: REVIEW ARTICLE Source Type: research
AbstractConnexins, which comprise gap junctions (GJs) via homotypic/heterotypic oligomerization, act as channels to connect opposing cells, mainly in solid organs such as the skin, liver, heart, and central/peripheral nervous system. Connexins are synthesized in the endoplasmic reticulum, assembled in the Golgi apparatus as hexamers, and inserted into the cell membrane as hemichannels. These hemichannels are closed under normal conditions until they combine to form clusters and connect to neighboring cells via GJs in a head ‐to‐head configuration. Opening of hemichannels, which depends on the intra‐ or extracellular ...
Source: Clinical and Experimental Neuroimmunology - Category: Neurology Authors: Tags: REVIEW ARTICLE Source Type: research
Authors: Gökaslan S, Demirbaş H, Özer Gökaslan Ç Abstract BACKGROUND/AIM: Multiple sclerosis (MS) is an autoimmune disease characterized by neurodegeneration or demyelination, and the relapsing?remitting phase of MS is characterized by acute exacerbation of disease activity. The most commonly used non-invasive approach to assess autonomic function is the determination of heart rate turbulence (HRT) and heart rate variability (HRV). The aim of this study was to evaluate the presence of cardiovascular autonomic dysfunction using HRT and HRV parameters determined via 24-hour Holter ECG monitorin...
Source: Turkish Journal of Medical Sciences - Category: General Medicine Tags: Turk J Med Sci Source Type: research
  Cannabis, weed, marijuana, pot. It goes by several names, but we all know what it smells like. As weed becomes more mainstream, we on the Not Crazy podcast want to know: Is marijuana really an effective treatment for anxiety? Is it just a coping mechanism? Or a vice? In today’s podcast, Gabe and Jackie look at the research and weigh out the evidence. They also interview Eileen Davidson, a rheumatoid arthritis patient who regularly uses marijuana as a medicine to see what she has to say. What’s your take? Tune in for an open-minded discussion about weed. (Transcript Available Below) SUBSCRIBE &REV...
Source: World of Psychology - Category: Psychiatry & Psychology Authors: Tags: Anxiety and Panic General Medications Not Crazy Podcast Source Type: blogs
Conclusion TDP-43 has been found to have a key role in oligodendrocyte function and viability, whereas PTB is important in neuronal differentiation, suggesting that altered expression and mislocalization of these RBPs in MS lesions may contribute to the pathogenesis of demyelination and neurodegeneration. Our findings also identify nucleocytoplasmic transport as a target for treatment.
Source: Neurology Neuroimmunology and Neuroinflammation - Category: Neurology Authors: Tags: Autoimmune diseases, All Demyelinating disease (CNS), Multiple sclerosis Article Source Type: research
Objective To determine prevalence and longitudinal trends in incidence of MS in Møre and Romsdal County, Western Norway, from 1950 to 2018. Methods Retrospective longitudinal population-based observational study. All patients diagnosed, or living, with MS in Møre and Romsdal were identified as incident or prevalent cases from local, regional, and national sources. We compiled the data in the Norwegian Multiple Sclerosis Registry and Biobank and used the aggregated data set to calculate incidence and prevalence rates using population measures obtained from Statistics Norway. Results On January 1, 2018, the e...
Source: Neurology Neuroimmunology and Neuroinflammation - Category: Neurology Authors: Tags: Autoimmune diseases, All Demyelinating disease (CNS), Multiple sclerosis, All epidemiology, Prevalence studies, Incidence studies Article Source Type: research
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