Effect of substrata and fibroblast growth factor on the proliferation in vitro of bovine aortic endothelial cells

1981 ◽  
Vol 109 (1) ◽  
pp. 69-81 ◽  
Author(s):  
D. Gospodarowicz ◽  
G.-M. Lui
Keyword(s):  
Endothelial Cells ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Fibroblast Growth ◽  
Aortic Endothelial Cells ◽  
Bovine Aortic Endothelial Cells ◽  
Proliferation In Vitro ◽  
Aortic Endothelial

scholarly journals The Fibrinogen Globe of Tenascin-C Promotes Basic Fibroblast Growth Factor-induced Endothelial Cell Elongation

1999 ◽  
Vol 10 (9) ◽  
pp. 2933-2943 ◽  
Author(s):  
Susanne Schenk ◽  
Ruth Chiquet-Ehrismann ◽  
Edouard J. Battegay
Keyword(s):  
Endothelial Cells ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Basic Fibroblast Growth Factor ◽  
Fibroblast Growth ◽  
Aortic Endothelial Cells ◽  
Tenascin C ◽  
Cytoskeleton Organization ◽  
Actin Cytoskeleton Organization

To investigate the potential role of tenascin-C (TN-C) on endothelial sprouting we used bovine aortic endothelial cells (BAECs) as an in vitro model of angiogenesis. We found that TN-C is specifically expressed by sprouting and cord-forming BAECs but not by nonsprouting BAECs. To test whether TN-C alone or in combination with basic fibroblast growth factor (bFGF) can enhance endothelial sprouting or cord formation, we used BAECs that normally do not sprout and, fittingly, do not express TN-C. In the presence of bFGF, exogenous TN-C but not fibronectin induced an elongated phenotype in nonsprouting BAECs. This phenotype was due to altered actin cytoskeleton organization. The fibrinogen globe of the TN-C molecule was the active domain promoting the elongated phenotype in response to bFGF. Furthermore, we found that the fibrinogen globe was responsible for reduced cell adhesion of BAECs on TN-C substrates. We conclude that bFGF-stimulated endothelial cells can be switched to a sprouting phenotype by the decreased adhesive strength of TN-C, mediated by the fibrinogen globe.

scholarly journals Autocrine activities of basic fibroblast growth factor: regulation of endothelial cell movement, plasminogen activator synthesis, and DNA synthesis.

1988 ◽  
Vol 107 (3) ◽  
pp. 1199-1205 ◽  
Author(s):  
Y Sato ◽  
D B Rifkin
Keyword(s):  
Endothelial Cells ◽  
Growth Factor ◽  
Dna Synthesis ◽  
Fibroblast Growth Factor ◽  
Plasminogen Activator ◽  
Basic Fibroblast Growth Factor ◽  
Cell Movement ◽  
Fibroblast Growth ◽  
Aortic Endothelial Cells ◽  
Bovine Aortic Endothelial Cells

We have found that the spontaneous migration of bovine aortic endothelial cells from the edge of a denuded area in a confluent monolayer is dependent upon the release of endogenous basic fibroblast growth factor (bFGF). Cell movement is blocked by purified polyclonal rabbit IgG to bFGF as well as affinity purified anti-bFGF IgG and anti-bFGF F(ab')2 fragments. The inhibitory effect of the immunoglobulins is dependent upon antibody concentration, is reversible, is overcome by the addition of recombinant bFGF, and is removed by affinity chromatography of the antiserum through a column of bFGF-Sepharose. Cell movement is also reversibly inhibited by the addition of protamine sulfate and suramin; two agents reported to block bFGF binding to its receptor. The addition of recombinant bFGF to wounded monolayers accelerates the movement of cells into the denuded area. Transforming growth factor beta which has been shown to antagonize several other effects of bFGF also inhibits cell movement. The anti-bFGF IgG prevents the movement of bovine capillary endothelial cells, BHK-21, NIH 3T3, and human skin fibroblasts into a denuded area. Antibodies to bFGF, as well as suramin and protamine sulfate also suppress the basal levels of plasminogen activator and DNA synthesis in bovine aortic endothelial cells.

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