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Profile of upregulated inflammatory proteins in sera of Myasthenia Gravis patients.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Clinical Neurophysiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Clinical Neurophysiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Clinical Neurophysiology.
2017 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, article id 39716Article in journal (Refereed) Published
Abstract [en]

This study describes specific patterns of elevated inflammatory proteins in clinical subtypes of myasthenia gravis (MG) patients. MG is a chronic, autoimmune neuromuscular disease with antibodies most commonly targeting the acetylcholine receptors (AChRab), which causes fluctuating skeletal muscle fatigue. MG pathophysiology includes a strong component of inflammation, and a large proportion of patients with early onset MG additionally present thymus hyperplasia. Due to the fluctuating nature and heterogeneity of the disease, there is a great need for objective biomarkers as well as novel potential inflammatory targets. We examined the sera of 45 MG patients (40 AChRab seropositive and 5 AChRab seronegative), investigating 92 proteins associated with inflammation. Eleven of the analysed proteins were significantly elevated compared to healthy controls, out of which the three most significant were: matrix metalloproteinase 10 (MMP-10; p = 0.0004), transforming growth factor alpha (TGF-α; p = 0.0017) and extracellular newly identified receptor for advanced glycation end-products binding protein (EN-RAGE) (also known as protein S100-A12; p = 0.0054). Further, levels of MMP-10, C-X-C motif ligand 1 (CXCL1) and brain derived neurotrophic factor (BDNF) differed between early and late onset MG. These novel targets provide valuable additional insight into the systemic inflammatory response in MG.

Place, publisher, year, edition, pages
2017. Vol. 7, article id 39716
National Category
Medical and Health Sciences Neurology
Research subject
Immunology; Neurology
Identifiers
URN: urn:nbn:se:uu:diva-314679DOI: 10.1038/srep39716ISI: 000391148300002PubMedID: 28045063OAI: oai:DiVA.org:uu-314679DiVA, id: diva2:1071417
Funder
Swedish Research Council, 2014-02048Swedish Research Council, 2014-07603Swedish Society of Medicine, SLS-499271Futurum - Academy for Health and Care, Jönköping County Council, Sweden, 520281
Available from: 2017-02-04 Created: 2017-02-04 Last updated: 2017-11-29Bibliographically approved

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