Linked Life Data

19942450

Source:http://linkedlifedata.com/resource/pubmed/id/19942450

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2010-1-19
pubmed:abstractText
The pathogenesis of rheumatoid arthritis (RA) and psoriatic arthritis (PsA) involves an abnormal chemokine regulation. The chemokine receptor CCR4 is necessary for T cell migration to the skin. We, therefore, studied if CCR4 and its ligand macrophage-derived chemokine (MDC/CCL22) could participate in spreading the disease between skin and joints by examining RA, PsA and osteoarthritis (OA) patients. In synovial fluid from RA and PsA patients we observed a significantly higher MDC/CCL22 level compared to OA patients. Additionally, the MDC/CCL22 protein was found to be elevated in RA and PsA plasma compared to OA and healthy volunteers. Flow cytometry revealed that most CD4(+)CCR4(+) lymphocytes also co-expressed CD45RO. Neither the MDC/CCL22 level nor the expression of CCR4 correlated to CRP. Immunohistochemistry of the RA and OA synovial membrane demonstrated CCR4 to be expressed by mononuclear cells and endothelial cells. Our results show that MDC/CCL22 is present within the synovial membrane of RA and OA patients and in high amount in the synovial fluid of patients with RA and PsA. This will enable migration of CCR4 expressing memory cells supporting that MDC/CCR4 could play a role in attracting skin specific memory T cells to the joints.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1096-0023
pubmed:author
pubmed:copyrightInfo
Copyright 2009 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
49
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
24-9
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Expression of MDC/CCL22 and its receptor CCR4 in rheumatoid arthritis, psoriatic arthritis and osteoarthritis.
pubmed:affiliation
Institute of Medical Microbiology and Immunology, Aarhus University, DK-8000 Aarhus C, Denmark. helene.aarslev@immunology.au.dk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't