Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2003-9-26
pubmed:abstractText
Chemokines have a pivotal role in the selective mediation and amplification of inflammation. The CNS vascular endothelial cells, which form part of the blood-brain barrier (BBB) and blood-retinal barrier (BRB), are ideally situated to present chemokines to circulating lymphocytes leading to their recruitment. Monocyte-chemoattractant protein-1 (MCP-1), also known as CCL2, a potent chemoattractant of T cells and monocytes, has been implicated in inflammatory and angio-proliferative brain and retinal disease. In this study, MCP-1 expression by CNS endothelial cells was investigated in vitro. Rat brain (GP8/3.9) and retinal (JG2/1) vascular endothelial cell lines expressed MCP-1 constitutively in vitro as assessed by immunocytochemistry and enzyme linked immunosorbant assay (ELISA). Upregulation of secreted MCP-1 was observed following activation with the pro-inflammatory cytokines TNF-alpha, IL-1 beta and IFN-gamma, and was reduced following dexamethasone treatment. Functional chemotactic activity of brain and retinal endothelial cell supernatants was demonstrated in an in vitro chemotaxis assay, which was inhibited by anti-MCP-1 antibodies. These findings suggest that endothelial cell-derived MCP-1 plays a key role in leukocyte recruitment across the blood-brain and blood-retinal barriers in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0165-5728
pubmed:author
pubmed:issnType
Print
pubmed:volume
142
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1-9
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:14512159-Animals, pubmed-meshheading:14512159-Brain, pubmed-meshheading:14512159-Cell Line, pubmed-meshheading:14512159-Cell-Free System, pubmed-meshheading:14512159-Chemokine CCL2, pubmed-meshheading:14512159-Chemotaxis, Leukocyte, pubmed-meshheading:14512159-Cytokines, pubmed-meshheading:14512159-Dexamethasone, pubmed-meshheading:14512159-Endothelium, Vascular, pubmed-meshheading:14512159-Female, pubmed-meshheading:14512159-Immunosuppressive Agents, pubmed-meshheading:14512159-Interferon-gamma, pubmed-meshheading:14512159-Interleukin-1, pubmed-meshheading:14512159-Intracellular Fluid, pubmed-meshheading:14512159-Microcirculation, pubmed-meshheading:14512159-Rats, pubmed-meshheading:14512159-Rats, Inbred Lew, pubmed-meshheading:14512159-Retinal Vessels, pubmed-meshheading:14512159-Tumor Necrosis Factor-alpha
pubmed:year
2003
pubmed:articleTitle
Cytokine regulation of MCP-1 expression in brain and retinal microvascular endothelial cells.
pubmed:affiliation
Department of Neurology, Addenbrooke's NHS Trust, Cambridge CB2 2QQ, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't