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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-1-14
pubmed:abstractText
Monocyte/macrophage infiltration to the arterial wall is an initial step in atherosclerosis, and monocyte chemoattractant protein-1 (MCP-1) is thought to play a central role in the recruitment of these cells. In the present study, we examined the role of local expression of MCP-1 at the vessel wall in the initiation and development of atherosclerosis. We transfected the cDNA encoding rat MCP-1 into the vessel wall of the rabbit carotid artery with the use of the hemagglutinating virus of Japan (HVJ)-liposome method. The rabbits were divided into the following groups: (1) those fed normal chow and transfected with MCP-1-HVJ, (2) those fed a high cholesterol diet (1% cholesterol) and transfected with MCP-1-HVJ, and (3) those fed a high cholesterol diet and transfected with control-HVJ. Prescribed diets were started 2 weeks before transfection and were continued for another 2 weeks. In group 1, vascular lesion formation was not found, and anti-rabbit monocyte/macrophage antibody (RAM-11) staining for monocytes/macrophages was negative, although anti-rat MCP-1 antibody (R-17) staining for rat MCP-1 was positive mainly in endothelial cells. Cholesterol feeding increased plasma cholesterol levels to 1801+/-444 mg/dL in group 2. In group 2, all rabbits displayed neointimal formation with infiltration of RAM-11-positive cells, and a part of the lesion was also positive for Sudan III lipid staining. In group 3, hypercholesterolemia did not induce the infiltration of monocytes/macrophages and subsequent lesion formation in the vessel wall despite definite upregulation of intercellular adhesion molecule-1 and vascular cell adhesion molecule-1 on the endothelium. To initiate atherosclerotic changes, local MCP-1 overexpression at the vessel is not sufficient, and activation of other factors induced by hypercholesterolemia is required.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1524-4636
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
115-20
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11788470-Animals, pubmed-meshheading:11788470-Antibodies, Monoclonal, pubmed-meshheading:11788470-Arteriosclerosis, pubmed-meshheading:11788470-Carotid Artery Diseases, pubmed-meshheading:11788470-Cell Movement, pubmed-meshheading:11788470-Chemokine CCL2, pubmed-meshheading:11788470-Cholesterol, pubmed-meshheading:11788470-Diet, Atherogenic, pubmed-meshheading:11788470-Endothelium, Vascular, pubmed-meshheading:11788470-Hypercholesterolemia, pubmed-meshheading:11788470-Intercellular Adhesion Molecule-1, pubmed-meshheading:11788470-Macrophages, pubmed-meshheading:11788470-Male, pubmed-meshheading:11788470-Monocytes, pubmed-meshheading:11788470-Rabbits, pubmed-meshheading:11788470-Rats, pubmed-meshheading:11788470-Transfection, pubmed-meshheading:11788470-Up-Regulation, pubmed-meshheading:11788470-Vascular Cell Adhesion Molecule-1
pubmed:year
2002
pubmed:articleTitle
Local overexpression of monocyte chemoattractant protein-1 at vessel wall induces infiltration of macrophages and formation of atherosclerotic lesion: synergism with hypercholesterolemia.
pubmed:affiliation
Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
pubmed:publicationType
Journal Article