title: Extracellular matrices produced in the presence of dexamethasone: a natural "growth agent" for human cultured endothelium.
abstract: Cultured endothelium synthesizes an extracellular matrix that resembles the basement membrane of the vessels. We studied the aspect of extracellular matrices produced in presence or absence of dexamethasone by immunofluorescent technique for fibronectin; the glycoprotein is more abundant in matrices produced in the presence of dexamethasone than controls and forms a very dense meshwork. When endothelial cells resuspended in medium without FCS were seeded on these preformed matrices they adhered and replicated. The endothelium grown on matrices preformed in the presence of steroid showed a better morphology and covered a greater area indicating the presence of more abundant fibronectin content in basal lamina.
mesh_terms: D002448:Cell Adhesion / Q000187:drug effects; D002455:Cell Division / Q000187:drug effects; D002478:Cells, Cultured; D003907:Dexamethasone / Q000494:pharmacology*; D004727:Endothelium / Q000166:cytology*; D005109:Extracellular Matrix / Q000187:drug effects* / Q000378:metabolism; D005260:Female; D006801:Humans; D011247:Pregnancy
chemical_list: D003907:Dexamethasone