Soluble CD163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis.

BACKGROUND: Soluble CD163 (sCD163) is a macrophage specific protein known to be up-regulated in serum from patients with multiple sclerosis (MS). OBJECTIVE: To investigate sCD163 in serum and CSF (cerebrospinal fluid) from patients undergoing MS diagnostic work-up and analyse its potential as a diag...

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Main Authors: Morten Stilund, Ann-Kathrin Reuschlein, Tove Christensen, Holger Jon Møller, Peter Vestergaard Rasmussen, Thor Petersen
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4041861?pdf=render
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author Morten Stilund
Ann-Kathrin Reuschlein
Tove Christensen
Holger Jon Møller
Peter Vestergaard Rasmussen
Thor Petersen
author_facet Morten Stilund
Ann-Kathrin Reuschlein
Tove Christensen
Holger Jon Møller
Peter Vestergaard Rasmussen
Thor Petersen
author_sort Morten Stilund
collection DOAJ
description BACKGROUND: Soluble CD163 (sCD163) is a macrophage specific protein known to be up-regulated in serum from patients with multiple sclerosis (MS). OBJECTIVE: To investigate sCD163 in serum and CSF (cerebrospinal fluid) from patients undergoing MS diagnostic work-up and analyse its potential as a diagnostic biomarker. METHODS: After a full MS diagnostic work-up, including collection of paired samples of CSF and serum, 183 patients were evaluated for inclusion in this study. Patients were divided into groups based on their diagnosis. Patients with normal clinical and paraclinical findings were grouped as symptomatic controls. Serum and CSF levels of sCD163 were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS: sCD163 could be measured in all serum and CSF samples. A high sCD163 CSF/serum ratio in relation to molecular weight was found, strongly indicating local production in the CNS. Median levels of sCD163 were significantly decreased in serum and significantly elevated in CSF in patients with relapsing-remitting, and primary-progressive MS. There were, however, some overlaps of the measures between groups. In a receiver operating characteristic (ROC) analysis sCD163 CSF/serum ratio had an area under the curve of 0.72. CONCLUSION: The sCD163 CSF/serum ratio was significantly increased in patients with MS and may reflect macrophage activation in MS lesions. These results suggest that primary progressive MS also is driven by inflammation in which the innate immune system plays a pivotal role.
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spelling doaj.art-3b1be84680f24d628d1647e9ec8f59512022-12-21T18:54:25ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0196e9858810.1371/journal.pone.0098588Soluble CD163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis.Morten StilundAnn-Kathrin ReuschleinTove ChristensenHolger Jon MøllerPeter Vestergaard RasmussenThor PetersenBACKGROUND: Soluble CD163 (sCD163) is a macrophage specific protein known to be up-regulated in serum from patients with multiple sclerosis (MS). OBJECTIVE: To investigate sCD163 in serum and CSF (cerebrospinal fluid) from patients undergoing MS diagnostic work-up and analyse its potential as a diagnostic biomarker. METHODS: After a full MS diagnostic work-up, including collection of paired samples of CSF and serum, 183 patients were evaluated for inclusion in this study. Patients were divided into groups based on their diagnosis. Patients with normal clinical and paraclinical findings were grouped as symptomatic controls. Serum and CSF levels of sCD163 were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS: sCD163 could be measured in all serum and CSF samples. A high sCD163 CSF/serum ratio in relation to molecular weight was found, strongly indicating local production in the CNS. Median levels of sCD163 were significantly decreased in serum and significantly elevated in CSF in patients with relapsing-remitting, and primary-progressive MS. There were, however, some overlaps of the measures between groups. In a receiver operating characteristic (ROC) analysis sCD163 CSF/serum ratio had an area under the curve of 0.72. CONCLUSION: The sCD163 CSF/serum ratio was significantly increased in patients with MS and may reflect macrophage activation in MS lesions. These results suggest that primary progressive MS also is driven by inflammation in which the innate immune system plays a pivotal role.http://europepmc.org/articles/PMC4041861?pdf=render
spellingShingle Morten Stilund
Ann-Kathrin Reuschlein
Tove Christensen
Holger Jon Møller
Peter Vestergaard Rasmussen
Thor Petersen
Soluble CD163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis.
PLoS ONE
title Soluble CD163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis.
title_full Soluble CD163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis.
title_fullStr Soluble CD163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis.
title_full_unstemmed Soluble CD163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis.
title_short Soluble CD163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis.
title_sort soluble cd163 as a marker of macrophage activity in newly diagnosed patients with multiple sclerosis
url http://europepmc.org/articles/PMC4041861?pdf=render
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AT holgerjonmøller solublecd163asamarkerofmacrophageactivityinnewlydiagnosedpatientswithmultiplesclerosis
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