Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
In situ analysis of tumour specimens undergoing neovascularization show that the production of VEGF is specifically induced in a subset of glioblastoma cells distinguished by their immediate proximity to necrotic foci (presumably hypoxic regions) and the clustering of capillaries alongside VEGF-producing cells.
|
1279431 |
1992 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
A human glioblastoma cell line produced VEGF, which enhanced the proliferation of BCE cells and induced an elongated shape in collagen gels.
|
8246443 |
1993 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
These results suggest that VEGF plays a major angiogenic role in glioblastoma.
|
8710899 |
1996 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Increases in VEGF mRNA levels were also observed in cultured human melanoma and rat glioblastoma cells with superoxide or hydrogen peroxide.
|
8833917 |
1996 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
Induction of vascular endothelial growth factor by nitric oxide in human glioblastoma and hepatocellular carcinoma cells.
|
9242380 |
1997 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
Vascular endothelial growth factor (VEGF), a potent angiogenic and vascular permeability factor, is important in the angiogenesis of glioblastoma.
|
9255258 |
1997 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
Thus, by introducing VEGF-overexpressing glioblastoma cells into the brain, we have established a reproducible and predictable in vivo model of tumor-associated intracerebral hemorrhage caused by the enhanced expression of single molecular species.
|
9342366 |
1997 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Studies of glioblastoma angiogenesis have revealed that expression of the vascular endothelial growth factor (VEGF) is up-regulated in these tumors.
|
9592205 |
1998 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Following incubation of glioblastoma cell lines under hypoxic/anoxic conditions for 24-48 hours, Fas mRNA levels remained unchanged, whereas VEGF expression was markedly upregulated.
|
9600216 |
1998 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Finally, in situ hybridization on glioblastoma sections shows that the in vivo expression patterns of IL-8 and VEGF genes overlap, but are not identical.
|
10050881 |
1999 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
Since malignant gliomas frequently show EGF receptor amplification and express IL-1, a pivotal regulatory cytokine involved in angiogenesis, we analyzed interactions between EGF/EGF receptor and IL-1/IL-1 receptor and VEGF in the established glioblastoma cell lines U-87 MG and A-172.
|
10571418 |
1999 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Here we report that when protein kinase C (PKC) pathways were activated in human glioblastoma U373 cells by phorbol 12-myristate 13-acetate (PMA), VEGF mRNA expression was up-regulated via a post-transcriptional mRNA stabilization mechanism.
|
10336429 |
1999 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
In the present study, the regulatory mechanism of the expression of VEGF by ionizing radiation was studied in three human glioblastoma cells.
|
10885623 |
2000 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
We examined VEGF regulation in U87 MG human glioblastoma cells and in U87/T691 cells, a clonal derivative that contains a truncated erbB2/Neu receptor that interferes with EGFR signaling through the formation of nonfunctional heterodimeric receptor complexes.
|
11059786 |
2000 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
Coexpression of VEGF and 150-kDa oxygen-regulated protein (ORP), a novel ER chaperone, in human glioblastoma suggested a link between angiogenesis and ORP150.
|
11358846 |
2001 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
These results suggest that HDAC inhibitors reduce VEGF secretion and modulate the expression of the other VEGF family members, and therefore may inhibit angiogenesis in glioblastoma tissues.
|
12622137 |
2002 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Here we show that substitution of the neutral culture medium (pH 7.3) with acidic pH medium (pH 6.6) up-regulates VEGF mRNA and protein production in human glioblastoma cells as reflected by Northern blot analysis and enzyme-linked immunosorbent assay.
|
11741977 |
2002 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
PTEN mutation and epidermal growth factor receptor activation regulate vascular endothelial growth factor (VEGF) mRNA expression in human glioblastoma cells by transactivating the proximal VEGF promoter.
|
12517803 |
2003 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
The potential therapeutic relevance of ZFP-mediated VEGF-A repression was addressed using the highly tumorigenic glioblastoma cell line U87MG.
|
14695215 |
2003 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Based on previous data on an autocrine function of VEGF in Flt-1-expressing glioblastoma cells we hypothesise that the X-ray radiation induced upregulation of VEGF might result in a downregulation of tumour cell proliferation and thus lead to a reduced sensitivity to radiation therapy.
|
15015778 |
2004 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
In conclusion, our VAI-embedded anti-VEGF ribozyme is a good inhibitor of angiogenesis in vitro, in a glioblastoma cell context.
|
15084786 |
2004 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
In this study a soluble vascular endothelial growth factor receptor (sFlt-1) and an angiostatin-endostatin fusion gene (statin-AE) were codelivered to human glioblastoma xenografts by nonviral gene transfer using the Sleeping Beauty (SB) transposon.
|
16150649 |
2005 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
We have scrutinized the mechanism of transcriptional activation of vascular endothelial growth factor (VEGF) expression by IL-6 in the mouse brain and in glioblastoma cells.
|
15688401 |
2005 |
Adult Glioblastoma
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
hERG1 channels are overexpressed in glioblastoma multiforme and modulate VEGF secretion in glioblastoma cell lines.
|
16175187 |
2005 |
Adult Glioblastoma
|
0.100 |
Biomarker
|
disease |
BEFREE |
VEGF protein was highest in glioblastoma and metastatic kidney tumors.
|
15949234 |
2005 |