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Autoantibody targets in vaccine-associated narcolepsy
KTH, Centres, Science for Life Laboratory, SciLifeLab.ORCID iD: 0000-0002-0056-1313
KTH, School of Biotechnology (BIO), Proteomics and Nanobiotechnology. KTH, Centres, Science for Life Laboratory, SciLifeLab.ORCID iD: 0000-0003-1242-0873
KTH, School of Biotechnology (BIO), Proteomics and Nanobiotechnology. KTH, Centres, Science for Life Laboratory, SciLifeLab.ORCID iD: 0000-0002-5248-8568
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2016 (English)In: Autoimmunity, ISSN 0891-6934, E-ISSN 1607-842X, Vol. 49, no 6, 421-433 p.Article in journal (Refereed) Published
Abstract [en]

Narcolepsy is a chronic sleep disorder with a yet unknown cause, but the specific loss of hypocretin-producing neurons together with a strong human leukocyte antigen (HLA) association has led to the hypothesis that autoimmune mechanisms might be involved. Here, we describe an extensive effort to profile autoimmunity repertoires in serum with the aim to find disease-related autoantigens. Initially, 57 serum samples from vaccine-associated and sporadic narcolepsy patients and controls were screened for IgG reactivity towards 10 846 fragments of human proteins using planar microarrays. The discovered differential reactivities were verified on suspension bead arrays in the same sample collection followed by further investigation of 14 antigens in 176 independent samples, including 57 narcolepsy patients. Among these 14 antigens, methyltransferase-like 22 (METTL22) and 5'-nucleotidase cytosolic IA (NT5C1A) were recognized at a higher frequency in narcolepsy patients of both sample sets. Upon sequence analysis of the 14 proteins, polymerase family, member 3 (PARP3), acyl-CoA-binding domain containing 7 (ARID4B), glutaminase 2 (GLS2) and cyclin-dependent kinase-like 1 (CDKL1) were found to contain amino acid sequences with homology to proteins found in the H1N1 vaccine. These findings could become useful elements of further clinical assays that aim towards a better phenotypic understanding of narcolepsy and its triggers.

Place, publisher, year, edition, pages
Taylor & Francis, 2016. Vol. 49, no 6, 421-433 p.
Keyword [en]
Narcolepsy, autoantibody, vaccine-associated, protein microarray, serum
National Category
Immunology
Identifiers
URN: urn:nbn:se:kth:diva-198898DOI: 10.1080/08916934.2016.1183655ISI: 000388594400009PubMedID: 27206786ScopusID: 2-s2.0-84969988196OAI: oai:DiVA.org:kth-198898DiVA: diva2:1063006
Funder
Science for Life Laboratory - a national resource center for high-throughput molecular bioscienceVINNOVAKnut and Alice Wallenberg Foundation
Note

QC 20170109

Available from: 2017-01-09 Created: 2016-12-22 Last updated: 2017-01-09Bibliographically approved

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Häggmark-Månberg, AnnaZandian, ArashForsström, BjörnHellström, CeciliaUhlén, MathiasSchwenk, Jochen M.Nilsson, Peter
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CiteExportLink to record
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