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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Jpn+J+Cancer+Res
1994 ; 85
(1
): 53-62
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Cooperative roles of hepatocyte growth factor and plasminogen activator in
tubular morphogenesis by human microvascular endothelial cells
#MMPMID7508907
Morimoto A
; Tada K
; Nakayama Y
; Kohno K
; Naito S
; Ono M
; Kuwano M
Jpn J Cancer Res
1994[Jan]; 85
(1
): 53-62
PMID7508907
show ga
Epidermal growth factor (EGF) or transforming growth factor-alpha (TGF-alpha)
stimulated cell migration, chemotaxis, and the expression of tissue-type
plasminogen activator (t-PA) in human omental microvascular endothelial (HOME)
cells. Hepatocyte growth factor (HGF) stimulated cell proliferation, but had a
negligible stimulatory effect on cell migration, the expression of t-PA and
tube-like formation into collagen gel in HOME cells. Basic fibroblast growth
factor stimulated cell proliferation, cell migration, tubulogenesis and the
expression of urokinase-type plasminogen activator (u-PA) in bovine aortic
endothelial (BAE) cells. HOME and BAE cells had both high- and low-affinity
receptors for HGF. In BAE cells, u-PA activity and tube-like structures in
collagen gel were induced in the presence of HGF alone. In contrast, in HOME
cells, t-PA activity and tube-like structures were induced in the presence of
TGF-alpha alone, but not in the presence of HGF alone. However, we observed a
marked induction of tube formation by HOME cells when both t-PA and HGF were
added simultaneously. In the model system for tumor angiogenesis, when HOME cells
were co-cultured with a renal cancer cell line, KPK13, tube-like structures were
induced in the presence of HGF:KPK13 cells expressed large amounts of t-PA mRNA.
Our present study suggested that HGF in concert with active t-PA could be
angiogenic in HOME cells.