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Mog antibodies

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https://www.readbyqxmd.com/read/28620864/adipose-tissue-derived-stromal-cells-adsc-express-oligodendrocyte-and-myelin-markers-but-they-do-not-function-as-oligodendrocytes
#1
Lara Vellosillo, Maria Paz Muñoz, Carlos Luis Paíno
Mesenchymal cells cultured from the vasculo-stromal fraction of adipose tissue (ADSC) show adult stem cell characteristics and several groups have claimed generating neural cells from them. However, we have observed that many markers commonly used for the identification of neural cells are spontaneously expressed by ADSC in culture. In the present study, we have examined the expression of characteristic oligodendrocyte molecules in cultured ADSC, aiming to test if myelinating cells could be generated from accessible non-neural adult tissues...
June 15, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28615429/diagnostic-algorithm-for-relapsing-acquired-demyelinating-syndromes-in-children
#2
Yael Hacohen, Kshitij Mankad, W K Chong, Frederik Barkhof, Angela Vincent, Ming Lim, Evangeline Wassmer, Olga Ciccarelli, Cheryl Hemingway
OBJECTIVE: To establish whether children with relapsing acquired demyelinating syndromes (RDS) and myelin oligodendrocyte glycoprotein antibodies (MOG-Ab) show distinctive clinical and radiologic features and to generate a diagnostic algorithm for the main RDS for clinical use. METHODS: A panel reviewed the clinical characteristics, MOG-Ab and aquaporin-4 (AQP4) Ab, intrathecal oligoclonal bands, and Epstein-Barr virus serology results of 110 children with RDS. A neuroradiologist blinded to the diagnosis scored the MRI scans...
June 14, 2017: Neurology
https://www.readbyqxmd.com/read/28551039/clinical-features-in-very-early-onset-demyelinating-disease-with-anti-mog-antibody
#3
Masahiro Nishiyama, Hiroaki Nagase, Masaaki Matsumoto, Kazumi Tomioka, Hiroyuki Awano, Tsukasa Tanaka, Daisaku Toyoshima, Kyoko Fujita, Azusa Maruyama, Yoshinobu Oyazato, Keisuke Saeki, Kazuhiro Shiraishi, Satoshi Takada, Kimihiko Kaneko, Toshiyuki Takahashi, Ichiro Nakashima, Kazumoto Iijima
BACKGROUND: The clinical features of patients with very early-onset acquired demyelinating syndrome (ADS) with the anti-myelin oligodendrocyte glycoprotein (MOG) antibody are unknown. We investigated the clinical characteristics and described detailed treatment of weekly intramuscular interferon β-1a (IFNβ-1a) in children aged <4years with ADS and the anti-MOG antibody. METHODS: We conducted a retrospective chart review of patients with anti-MOG positivity who were diagnosed as having multiple sclerosis (MS) at <4years of age...
May 24, 2017: Brain & Development
https://www.readbyqxmd.com/read/28533781/myelin-oligodendrocyte-glycoprotein-deciphering-a-target-in-inflammatory-demyelinating-diseases
#4
REVIEW
Patrick Peschl, Monika Bradl, Romana Höftberger, Thomas Berger, Markus Reindl
Myelin oligodendrocyte glycoprotein (MOG), a member of the immunoglobulin (Ig) superfamily, is a myelin protein solely expressed at the outermost surface of myelin sheaths and oligodendrocyte membranes. This makes MOG a potential target of cellular and humoral immune responses in inflammatory demyelinating diseases. Due to its late postnatal developmental expression, MOG is an important marker for oligodendrocyte maturation. Discovered about 30 years ago, it is one of the best-studied autoantigens for experimental autoimmune models for multiple sclerosis (MS)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28477397/etiologies-of-acute-demyelinating-optic-neuritis-an-observational-study-of-110-patients
#5
R Deschamps, A Lecler, C Lamirel, J Aboab, A Gueguen, C Bensa, C Vignal, O Gout
BACKGROUND AND PURPOSE: New criteria for the diagnosis of multiple sclerosis (MS) and discovery of myelin oligodendrocyte glycoprotein (MOG) or aquaporin-4 (AQP4) antibodies (Abs) have changed the management of optic neuritis (ON). Our aim was to specify, in view of these recent advances, the etiologies of acute demyelinating ON for consecutive patients. METHODS: Retrospective database analysis was undertaken of consecutive adult patients with acute ON admitted from 1 December 2014 to 31 January 2016...
June 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28471902/recurrent-optic-neuritis-associated-with-mog-antibody-seropositivity
#6
Thashi Chang, Patrick Waters, Mark Woodhall, Angela Vincent
INTRODUCTION: Optic neuritis (ON) can be the first manifestation of autoimmune central nervous system diseases such as multiple sclerosis and neuromyelitis optica, but it can also occur as an isolated monophasic or relapsing disease. A proportion of these patients have antibodies against myelin oligodendrocyte glycoprotein (MOG). We report a case of recurrent ON with MOG antibodies in a South Asian patient. CASE REPORT: A 50-year-old Sri Lankan female with a previous history of 2 episodes of steroid-responsive ON presented with a 20/120 visual impairment of her right eye...
May 2017: Neurologist
https://www.readbyqxmd.com/read/28461116/anti-neuronal-anti-bodies-in-patients-with-early-psychosis
#7
O Mantere, M Saarela, T Kieseppä, T Raij, T Mäntylä, M Lindgren, E Rikandi, W Stoecker, B Teegen, J Suvisaari
It may be challenging to distinguish autoimmune encephalitis associated with anti-neuronal autoantibodies from primary psychiatric disorders. Here, serum was drawn from patients with a first-episode psychosis (n=70) or a clinical high-risk for psychosis (n=6) and controls (n=34). We investigated the serum prevalence of 24 anti-neuronal autoantibodies: IgG antibodies for anti-N-methyl-d-aspartate-type glutamate receptor (anti-NMDAR), glutamate and γ-aminobutyric acid alpha and beta receptors (GABA-a, GABA-b), alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPA), glycine receptor (GlyR), metabotropic glutamate receptor 1 and 5 (mGluR1, mGluR5), anti-Tr/Delta/notch-like epidermal growth factor-related receptor (DNER), contactin-associated protein-like 2 (CASPR2), myelin oligodendrocyte glycoprotein (MOG), glutamic acid decarboxylase-65 (GAD65), collapsin response mediator protein 5/crossveinless-2 (CV2), aquaporin-4 (AQP4), anti-dipeptidyl-peptidase-like protein-6 (DPPX), type 1 anti-neuronal nuclear antibody (ANNA-1, Hu), Ri, Yo, IgLON5, Ma2, zinc finger protein 4 (ZIC4), Rho GTPase-activating protein 26, amphiphysin, and recoverin, as well as IgA and IgM for dopamine-2-receptor (DRD2)...
April 28, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28457906/widespread-cortical-demyelination-of-both-hemispheres-can-be-induced-by-injection-of-pro-inflammatory-cytokines-via-an-implanted-catheter-in-the-cortex-of-mog-immunized-rats
#8
Muammer Üçal, Michaela Tanja Haindl, Milena Z Adzemovic, Johannes Strasser, Lisa Theisl, Manuel Zeitelhofer, Klaus Kraitsy, Stefan Ropele, Ute Schäfer, Franz Fazekas, Sonja Hochmeister
Cortical demyelination is a common finding in patients with chronic multiple sclerosis (MS) and contributes to disease progression and overall disability. The exact pathomechanism that leads to cortical lesions is not clear. Research is limited by the fact that standard animal models of multiple sclerosis do not commonly affect the cortex, or if they do in some variants, the cortical demyelination is rather sparse and already remyelinated within a few days. In an attempt to overcome these limitations we implanted a tissue-compatible catheter into the cortex of Dark Agouti rats...
August 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28429225/design-of-chemical-conjugate-for-targeted-therapy-of-multiple-sclerosis-based-of-constant-fragment-of-human-antibody-heavy-chain-and-peptoid-analog-of-autoantigen-mog35-55
#9
Y A Lomakin, A V Stepanov, D S Balabashin, N A Ponomarenko, I V Smirnov, A A Belogurov
Elimination of B cells producing autoantibodies to neuroantigens is considered as beneficial in the treatment of multiple sclerosis. Myelin oligodendrocyte glycoprotein (MOG) is a significant autoantigen in multiple sclerosis. It was shown that MOG-like peptoid AMogP3 can bind autoantibodies produced by pathological lymphocytes. We propose a structure of an innovative drug for targeted elimination of the pool of autoreactive B cells responsible for multiple sclerosis pathogenesis; this compound is a complex of peptoid AMogP3 with Fc fragment of human immunoglobulin...
April 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28420330/anti-mog-antibody-positive-adem-following-infectious-mononucleosis-due-to-a-primary-ebv-infection-a-case-report
#10
Yoshitsugu Nakamura, Hideto Nakajima, Hiroki Tani, Takafumi Hosokawa, Shimon Ishida, Fumiharu Kimura, Kimihiko Kaneko, Toshiyuki Takahashi, Ichiro Nakashima
BACKGROUND: Anti-Myelin oligodendrocyte glycoprotein (MOG) antibodies are detected in various demyelinating diseases, such as pediatric acute disseminated encephalomyelitis (ADEM), recurrent optic neuritis, and aquaporin-4 antibody-seronegative neuromyelitis optica spectrum disorder. We present a patient who developed anti-MOG antibody-positive ADEM following infectious mononucleosis (IM) due to Epstein-Barr virus (EBV) infection. CASE PRESENTATION: A 36-year-old healthy man developed paresthesia of bilateral lower extremities and urinary retention 8 days after the onset of IM due to primary EBV infection...
April 19, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28397727/neutralization-of-interleukin-9-decreasing-mast-cells-infiltration-in-experimental-autoimmune-encephalomyelitis
#11
Jun-Jie Yin, Xue-Qiang Hu, Zhi-Feng Mao, Jian Bao, Wei Qiu, Zheng-Qi Lu, Hao-Tian Wu, Xiao-Nan Zhong
BACKGROUND: Th9 cells are a newly discovered CD4+ T helper cell subtype, characterized by high interleukin (IL)-9 secretion. Growing evidences suggest that Th9 cells are involved in the pathogenic mechanism of multiple sclerosis (MS). Mast cells are multifunctional innate immune cells, which are perhaps best known for their role as dominant effector cells in allergies and asthma. Several lines of evidence point to an important role for mast cells in MS and its animal models. Simultaneously, there is dynamic "cross-talk" between Th9 and mast cells...
April 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28364548/distinct-brain-imaging-characteristics-of-autoantibody-mediated-cns-conditions-and-multiple-sclerosis
#12
Maciej Jurynczyk, Ruth Geraldes, Fay Probert, Mark R Woodhall, Patrick Waters, George Tackley, Gabriele DeLuca, Saleel Chandratre, Maria I Leite, Angela Vincent, Jacqueline Palace
Brain imaging characteristics of MOG antibody disease are largely unknown and it is unclear whether they differ from those of multiple sclerosis and AQP4 antibody disease. The aim of this study was to identify brain imaging discriminators between those three inflammatory central nervous system diseases in adults and children to support diagnostic decisions, drive antibody testing and generate disease mechanism hypotheses. Clinical brain scans of 83 patients with brain lesions (67 in the training and 16 in the validation cohort, 65 adults and 18 children) with MOG antibody (n = 26), AQP4 antibody disease (n = 26) and multiple sclerosis (n = 31) recruited from Oxford neuromyelitis optica and multiple sclerosis clinical services were retrospectively and anonymously scored on a set of 29 predefined magnetic resonance imaging features by two independent raters...
March 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28331892/adem-like-presentation-anti-mog-antibodies-and-ms-pathology-two-case-reports
#13
Peter Körtvélyessy, Markus Breu, Marc Pawlitzki, Imke Metz, Hans-Jochen Heinze, Mike Matzke, Christian Mawrin, Paulus Rommer, Gabor G Kovacs, Christian Mitter, Markus Reindl, Wolfgang Brück, Klaus-Peter Wandinger, Hans Lassmann, Romana Höftberger, Frank Leypoldt
No abstract text is available yet for this article.
May 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28327523/methodological-challenges-in-protein-microarray-and-immunohistochemistry-for-the-discovery-of-novel-autoantibodies-in-paediatric-acute-disseminated-encephalomyelitis
#14
Patrick Peschl, Melanie Ramberger, Romana Höftberger, Karin Jöhrer, Matthias Baumann, Kevin Rostásy, Markus Reindl
Acute disseminated encephalomyelitis (ADEM) is a rare autoimmune-mediated demyelinating disease affecting mainly children and young adults. Differentiation to multiple sclerosis is not always possible, due to overlapping clinical symptoms and recurrent and multiphasic forms. Until now, immunoglobulins reactive to myelin oligodendrocyte glycoprotein (MOG antibodies) have been found in a subset of patients with ADEM. However, there are still patients lacking autoantibodies, necessitating the identification of new autoantibodies as biomarkers in those patients...
March 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28326889/aquaporin-4-autoimmunity-in-patients-with-systemic-lupus-erythematosus-a-predominantly-population-based-study
#15
Nasrin Asgari, Sven Jarius, Helle Laustrup, Hanne Pb Skejoe, Soeren T Lillevang, Brian G Weinshenker, Anne Voss
BACKGROUND: Serum immunoglobulin G targeting the astrocyte water channel aquaporin-4 (AQP4) in the central nervous system (CNS) is a biomarker for neuromyelitis optica spectrum disease (NMOSD). Co-existence of NMOSD with systemic lupus erythematosus (SLE) putatively suggests susceptibility to antibody-mediated autoimmune disease. OBJECTIVE: To estimate the prevalence of NMOSD in SLE and investigate the immunogenetic background for an association of NMOSD and SLE...
March 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28302134/microrna-142-regulates-inflammation-and-t-cell-differentiation-in-an-animal-model-of-multiple-sclerosis
#16
Farideh Talebi, Samira Ghorbani, Wing Fuk Chan, Roobina Boghozian, Farimah Masoumi, Sedigheh Ghasemi, Mohammed Vojgani, Christopher Power, Farshid Noorbakhsh
BACKGROUND: MicroRNAs have emerged as an important class of modulators of gene expression. These molecules influence protein synthesis through translational repression or degradation of mRNA transcripts. Herein, we investigated the potential role of miR-142a isoforms, miR-142a-3p and miR-142a-5p, in the context of autoimmune neuroinflammation. METHODS: The expression levels of two mature isoforms of miR-142 were measured in the brains of patients with multiple sclerosis (MS) and the CNS tissues from mice with experimental autoimmune encephalomyelitis (EAE), an animal model of MS...
March 16, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28284341/mog-antibody-associated-demyelinating-disease-of-the-cns-a-clinical-and-pathological-study-in-chinese-han-patients
#17
Lei Zhou, Yongheng Huang, Haiqing Li, Jie Fan, Jingzi Zhangbao, Hai Yu, Yuxin Li, Jiahong Lu, Chongbo Zhao, Chuanzhen Lu, Min Wang, Chao Quan
We aim to evaluate the clinical relevance of MOG-ab in a cohort of Chinese Han adults with CNS inflammatory demyelinating diseases (IDDs). MOG-ab and AQP4-ab were examined through a fixed cell based indirect immune-fluorescence assay in 86 patients with CNS-IDDs. MOG-ab was positive in 12 patients, while AQP4-ab was positive in 31 patients; none double positives. Optic neuritis (ON) was the most frequent symptom at onset (75.0%) or during the whole disease course (83.3%) of MOG-ab associated IDDs (MOG-IDDs); 79...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28248700/myelin-oligodendrocyte-glycoprotein-antibodies-how-clinically-useful-are-they
#18
Markus Reindl, Sven Jarius, Kevin Rostasy, Thomas Berger
PURPOSE OF REVIEW: Serum IgG autoantibodies against the myelin oligodendrocyte glycoprotein (MOG) are present in atypical demyelinating disorders such as neuromyelitis optica spectrum disorders (NMOSD) or acute disseminated encephalomyelitis. Whereas the role of aquaporin-4 antibodies as diagnostic markers for NMOSD is meanwhile well established, the role of MOG antibodies is less clear. RECENT FINDINGS: Initial studies suggested that MOG antibodies are associated with a more benign disease course than aquaporin-4antibodies...
June 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28125740/retinal-nerve-fiber-layer-may-be-better-preserved-in-mog-igg-versus-aqp4-igg-optic-neuritis-a-cohort-study
#19
Hadas Stiebel-Kalish, Itay Lotan, Judith Brody, Gabriel Chodick, Omer Bialer, Romain Marignier, Michael Bach, Mark Andrew Hellmann
BACKGROUND: Optic neuritis (ON) in patients with anti-myelin oligodendrocyte glycoprotein (MOG)-IgG antibodies has been associated with a better clinical outcome than anti-aquaporin 4 (AQP4)- IgG ON. Average retinal nerve fiber layer thickness (RNFL) correlates with visual outcome after ON. OBJECTIVES: The aim of this study was to examine whether anti-MOG-IgG ON is associated with better average RNFL compared to anti-AQP4-IgG ON, and whether this corresponds with a better visual outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28111033/azathioprine-therapy-in-a-case-of-pediatric-multiple-sclerosis-that-was-seropositive-for-mog-igg
#20
Yifan Zhou, Qiao Huang, Tingting Lu, Xiaobo Sun, Ling Fang, Zhengqi Lu, Xueqiang Hu, Allan Kermode, Wei Qiu
There is a lack of evidence for treatment of pediatric multiple sclerosis (PedMS). Treatment using azathioprine for PedMS has not been reported. A 10-year-old boy with multiple sclerosis who was seropositive for antibodies against myelin oligodendrocyte glycoprotein (MOG)-IgG was treated with azathioprine plus oral methylprednisolone. The patient showed clinical and magnetic resonance imaging stability, with MOG-IgG seroconversion. There were no major side effects over a 5-year period. Azathioprine may be a treatment option, particularly in poor medical resource areas, for pediatric patients with multiple sclerosis who are seropositive for MOG-IgG...
April 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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