Linked Life Data

12560590

Source:http://linkedlifedata.com/resource/pubmed/id/12560590

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2003-1-31
pubmed:abstractText
Vascular calcification is a common feature of advanced atherosclerosis resulting in reduced elasticity of elastic arteries. However, the relationship between elastic fibers and vascular calcification at the molecular and cellular levels remains unknown. We investigated the expression of major elastic fiber components such as tropoelastin (TE) and fibrillin-1 (FBN1) and elastin-related enzyme, lysyl oxidase (LO), in a calcification model using beta-glycerophosphate (beta-GP) in cultured bovine aortic smooth muscle cells (BASMCs). Ten mM of beta-GP stimulated calcium deposition in a time-dependent manner. As determined by Western blot analysis, 10 mM of beta-GP time-dependently decreased TE and FBN1 protein levels. TE, FBN1, and LO mRNA levels, assessed by reverse transcription-polymerase chain reaction, were also decreased by exposure to 10 mM beta-GP. Furthermore, we investigated whether the processes of calcification in BASMCs directly control these regulations. In experiments using levamisole, an alkaline phosphatase inhibitor, and DMDP, a bisphosphonate, both inhibitors inhibited down-regulation during beta-GP-induced calcification, suggesting that the down-regulation of TE, FBN1, and LO directly relates to calcium deposition. In cases of vascular calcification, the decreased expression of TE, FBN1, and LO may be partially responsible for decreased vascular elasticity and also for the decreased formation of new elastic fibers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1340-3478
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
292-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Accelerated calcification represses the expression of elastic fiber components and lysyl oxidase in cultured bovine aortic smooth muscle cells.
pubmed:affiliation
Department of Clinical Chemistry, Hoshi University, Tokyo, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't