Linked Life Data

9773825

Source:http://linkedlifedata.com/resource/pubmed/id/9773825

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-12-29
pubmed:abstractText
We developed regenerating agents (RGTAs) corresponding to polysaccharides derived from dextran and containing defined amounts of carboxymethyl (CM), carboxymethyl sulfate (CMS), carboxymethyl benzylamide (CMB), or carboxymethyl benzylamide sulfate (CMBS) groups with varying degrees of substitution. These compounds mimicked some effects of heparin on smooth muscle cell (SMC) proliferation and promoted in vivo tissue remodeling. We demonstrated that only RGTAs containing both CM and sulfate groups decreased SMC proliferation, in correlation with increased sulfation level. This effect was amplified by the presence of benzylamide. Independent of this activity on cell proliferation (i.e., with postconfluent cells), RGTAs modulated collagen biosynthesis by SMCs. On the one hand, CMBS more than CMS RGTAs induced a decrease of collagen III synthesis at the level of mRNA steady state and protein production. On the other hand, CMS to a greater extent than CMBS RGTAs increased both collagen V mRNA and protein production. In addition, only benzylamide-containing RGTAs increased accumulation of collagen I and III in the cell layer. In conclusion, RGTA bioactivities required the presence of CM functions, increased with the sulfation level, and varied with benzylamide substitution. RGTAs that modulate cell proliferation and collagen biosynthesis by differential mechanisms may represent potential antifibrotic agents.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0021-9304
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
286-94
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Chemically modified dextrans modulate expression of collagen phenotype by cultured smooth muscle cells in relation to the degree of carboxymethyl, benzylamide, and sulfation substitutions.
pubmed:affiliation
CRRET/CNRS URA 1813, Faculté des Sciences de Créteil, Université Paris-12, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't