Affinity Proteomic Profiling of Plasma, Cerebrospinal Fluid, and Brain Tissue within Multiple Sclerosis
Number of Authors: 16
2014 (English)In: Journal of Proteome Research, ISSN 1535-3893, E-ISSN 1535-3907, Vol. 13, no 11, 4607-4619 p.Article in journal (Refereed) Published
The brain is a vital organ and because it is well shielded from the outside environment, possibilities for noninvasive analysis are often limited. Instead, fluids taken from the spinal cord or circulatory system are preferred sources for the discovery of candidate markers within neurological diseases. In the context of multiple sclerosis (MS), we applied an affinity proteomic strategy and screened 22 plasma samples with 4595 antibodies (3450 genes) on bead arrays, then defined 375 antibodies (334 genes) for targeted analysis in a set of 172 samples and finally used 101 antibodies (43 genes) on 443 plasma as well as 573 cerebrospinal spinal fluid (CSF) samples. This revealed alteration of protein profiles in relation to MS subtypes for IRF8, IL7, METTL14, SLC30A7, and GAP43. Respective antibodies were subsequently used for immunofluorescence on human post-mortem brain tissue with MS pathology for expression and association analysis. There, antibodies for IRF8, IL7, and METTL14 stained neurons in proximity of lesions, which highlighted these candidate protein targets for further studies within MS and brain tissue. The affinity proteomic translation of profiles discovered by profiling human body fluids and tissue provides a powerful strategy to suggest additional candidates to studies of neurological disorders.
Place, publisher, year, edition, pages
2014. Vol. 13, no 11, 4607-4619 p.
antibodies, suspension bead arrays, plasma, CSF, brain tissue, immunofluorescence, multiple sclerosis
Biochemistry and Molecular Biology
IdentifiersURN: urn:nbn:se:kth:diva-150383DOI: 10.1021/pr500609eISI: 000344636500012PubMedID: 25231264ScopusID: 2-s2.0-84908890596OAI: oai:DiVA.org:kth-150383DiVA: diva2:742773
FunderSwedish Research CouncilAFA InsuranceScience for Life Laboratory - a national resource center for high-throughput molecular bioscienceKnut and Alice Wallenberg Foundation
Updated from manuscript to article in journal.2014-09-022014-09-022015-01-16Bibliographically approved