Linked Life Data

10146243

Source:http://linkedlifedata.com/resource/pubmed/id/10146243

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-4
pubmed:dateCreated
1994-1-27
pubmed:abstractText
The feature that clearly distinguishes natural blood vessels from their artificial counterparts is the presence of the endothelial cell lining that, besides being non-thrombogenic, is capable of repair and renewal. This study describes a method of coating vascular grafts with a uniform naturally produced subendothelial extracellular matrix (ECM) prior to implantation. Bovine aortic endothelial cells were seeded at a low density on untreated GORE-TEX, GORE-TEX that was precoated with ECM, or GORE-TEX that was first coated with fibronectin and then with ECM. The cells were maintained in the absence of fibroblast growth factor (FGF) and the cell number determined after 7 days in culture. Poor growth was observed on untreated GORE-TEX (6030 +/- 1030 cells/well), a 10-fold improved growth was observed on ECM coated GORE-TEX (59900 +/- 1560 cells/well) and best results were obtained on fibronectin-ECM precoated GORE-TEX (131000 +/- 21000 cells/well). The thrombogenicity of the ECM was reduced by a mild glutaraldehyde treatment, performed prior to seeding the cells, accompanied by a 40-50% reduced endothelial cell growth. These results indicate that ECM provides a suitable biolayer for endothelial cell adhesion, growth and differentiation. It contains both adhesion glycoproteins (fibronectin, laminin, collagen) and endothelial cell growth factors (basic fibroblast growth factor) that support adhesion and normal growth of suboptimal concentrations of endothelial cells. We suggest that the presence in ECM of both adhesive macromolecules and potent endothelial cell growth promoting factors will make the ECM a promising substrate for vascular grafts.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
T
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0267-6605
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
51-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
An improved method of endothelial seeding on small caliber prosthetic vascular grafts coated with natural extracellular matrix.
pubmed:affiliation
The Joseph Lunenfeld Cardiac Surgery Research Center, Hadassah University Hospital, Jerusalem, Israel.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't