Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse

<p>Abstract</p> <p>The plasmacytoid dendritic cells (pDCs) express a high level of Toll-like receptor 9 (TLR-9), which recognizes viral DNA. Activated via TLR-9, pDCs also secrete large amounts of type I interferon which are involved either in stimulation or down regulation of immu...

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Main Authors: Quispe-Cabanillas Juan G, Oliveira Elaine C, Farias Alessandro S, Moraes Adriel S, Pradella Fernando, de Paula Rosemeire FO, Brandão Carlos, von Glehn Felipe, Longhini Ana, Abreu Cassiana, Damasceno Alfredo, Damasceno Benito P, Balashov Konstantin E, Santos Leonilda MB
Format: Article
Language:English
Published: BMC 2011-01-01
Series:Journal of Neuroinflammation
Online Access:http://www.jneuroinflammation.com/content/8/1/2
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author Quispe-Cabanillas Juan G
Oliveira Elaine C
Farias Alessandro S
Moraes Adriel S
Pradella Fernando
de Paula Rosemeire FO
Brandão Carlos
von Glehn Felipe
Longhini Ana
Abreu Cassiana
Damasceno Alfredo
Damasceno Benito P
Balashov Konstantin E
Santos Leonilda MB
author_facet Quispe-Cabanillas Juan G
Oliveira Elaine C
Farias Alessandro S
Moraes Adriel S
Pradella Fernando
de Paula Rosemeire FO
Brandão Carlos
von Glehn Felipe
Longhini Ana
Abreu Cassiana
Damasceno Alfredo
Damasceno Benito P
Balashov Konstantin E
Santos Leonilda MB
author_sort Quispe-Cabanillas Juan G
collection DOAJ
description <p>Abstract</p> <p>The plasmacytoid dendritic cells (pDCs) express a high level of Toll-like receptor 9 (TLR-9), which recognizes viral DNA. Activated via TLR-9, pDCs also secrete large amounts of type I interferon which are involved either in stimulation or down regulation of immune response in multiple sclerosis (MS). In the present study, we determinate pDCs levels by flow cytometry in Cerebrospinal Fluid (CSF) and Peripheral Blood from MS patients in relapsing and in remitting phases of the disease, comparing with other non-inflammatory diseases (OND). We provide evidence that MS patients in relapse without any treatment have a significantly (p < 0.01) higher percentage of pDCs in CSF than do patients in remission or those with OND. No change in the percentage of pDCs was observed in the peripheral blood of any of these patients. The increase of pDCs in central nervous system during relapse may be explained either by a virus infection or a down regulatory process.</p>
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spelling doaj.art-47170d2f6c534f678e10e26bae1f6e9e2022-12-22T01:22:14ZengBMCJournal of Neuroinflammation1742-20942011-01-0181210.1186/1742-2094-8-2Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapseQuispe-Cabanillas Juan GOliveira Elaine CFarias Alessandro SMoraes Adriel SPradella Fernandode Paula Rosemeire FOBrandão Carlosvon Glehn FelipeLonghini AnaAbreu CassianaDamasceno AlfredoDamasceno Benito PBalashov Konstantin ESantos Leonilda MB<p>Abstract</p> <p>The plasmacytoid dendritic cells (pDCs) express a high level of Toll-like receptor 9 (TLR-9), which recognizes viral DNA. Activated via TLR-9, pDCs also secrete large amounts of type I interferon which are involved either in stimulation or down regulation of immune response in multiple sclerosis (MS). In the present study, we determinate pDCs levels by flow cytometry in Cerebrospinal Fluid (CSF) and Peripheral Blood from MS patients in relapsing and in remitting phases of the disease, comparing with other non-inflammatory diseases (OND). We provide evidence that MS patients in relapse without any treatment have a significantly (p < 0.01) higher percentage of pDCs in CSF than do patients in remission or those with OND. No change in the percentage of pDCs was observed in the peripheral blood of any of these patients. The increase of pDCs in central nervous system during relapse may be explained either by a virus infection or a down regulatory process.</p>http://www.jneuroinflammation.com/content/8/1/2
spellingShingle Quispe-Cabanillas Juan G
Oliveira Elaine C
Farias Alessandro S
Moraes Adriel S
Pradella Fernando
de Paula Rosemeire FO
Brandão Carlos
von Glehn Felipe
Longhini Ana
Abreu Cassiana
Damasceno Alfredo
Damasceno Benito P
Balashov Konstantin E
Santos Leonilda MB
Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse
Journal of Neuroinflammation
title Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse
title_full Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse
title_fullStr Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse
title_full_unstemmed Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse
title_short Plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse
title_sort plasmacytoid dendritic cells are increased in cerebrospinal fluid of untreated patients during multiple sclerosis relapse
url http://www.jneuroinflammation.com/content/8/1/2
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