A subtype of multiple sclerosis defined by an activated immune defense program

Given the heterogeneous nature of multiple sclerosis (MS), we applied DNA microarray technology to determine whether variability is reflected in peripheral blood (PB) cells. In this study, we studied whole-blood gene expression profiles of 29 patients with relapsing-remitting MS (RRMS) and 25 age- a...

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Veröffentlicht in:Genes and immunity 2006-09, Vol.7 (6), p.522-531
Hauptverfasser: van Baarsen, L G M, van der Pouw Kraan, T C T M, Kragt, J J, Baggen, J M C, Rustenburg, F, Hooper, T, Meilof, J F, Fero, M J, Dijkstra, C D, Polman, C H, Verweij, C L
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container_end_page 531
container_issue 6
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container_title Genes and immunity
container_volume 7
creator van Baarsen, L G M
van der Pouw Kraan, T C T M
Kragt, J J
Baggen, J M C
Rustenburg, F
Hooper, T
Meilof, J F
Fero, M J
Dijkstra, C D
Polman, C H
Verweij, C L
description Given the heterogeneous nature of multiple sclerosis (MS), we applied DNA microarray technology to determine whether variability is reflected in peripheral blood (PB) cells. In this study, we studied whole-blood gene expression profiles of 29 patients with relapsing-remitting MS (RRMS) and 25 age- and sex-matched healthy controls. We used microarrays with a complexity of 43K cDNAs. The data were analyzed using sophisticated pathway-level analysis in order to provide insight into the deregulated peripheral immune response programs in MS. We found a remarkable elevated expression of a spectrum of genes known to be involved in immune defense in the PB of MS patients compared to healthy individuals. Cluster analysis revealed that the increased expression of these genes was characteristic for approximately half of the patients. In addition, the gene signature in this group of patients was comparable with a virus response program. We conclude that the transcriptional signature of the PB cells reflects the heterogeneity of MS and defines a sub-population of RRMS patients, who exhibit an activated immune defense program that resembles a virus response program, which is supportive for a link between viruses and MS.
doi_str_mv 10.1038/sj.gene.6364324
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subjects Biomedical and Life Sciences
Biomedicine
Cancer Research
Care and treatment
Case-Control Studies
Causes of
Cluster Analysis
DNA microarrays
Gene Expression
Gene Expression Regulation
Genetic aspects
Genetic Heterogeneity
Genomics
Human Genetics
Humans
Immune response
Immune system
Immunoglobulins
Immunology
Interferon
Interferon Type I - immunology
Interferon Type I - metabolism
Magnetic resonance imaging
Multiple sclerosis
Multiple Sclerosis, Relapsing-Remitting - blood
Multiple Sclerosis, Relapsing-Remitting - genetics
Multiple Sclerosis, Relapsing-Remitting - immunology
Oligonucleotide Array Sequence Analysis
original-article
Peripheral blood
Physiological aspects
Poxviridae Infections - genetics
Signal Transduction
Transcription
Up-Regulation
Viruses
title A subtype of multiple sclerosis defined by an activated immune defense program
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