Glioblastoma
|
0.400 |
GeneticVariation
|
disease |
BEFREE |
Immunohistochemical analysis of the mutant epidermal growth factor, deltaEGFR, in glioblastoma.
|
15700833 |
2004 |
Glioblastoma
|
0.400 |
GeneticVariation
|
disease |
BEFREE |
These findings suggest that a single nucleotide polymorphism in EGF may play a role in the formation of glioblastomas, is a useful and powerful prognostic marker for these patients, and may be a target for tumor therapy.
|
14973082 |
2004 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
Crosstalk between the urokinase-type plasminogen activator receptor and EGF receptor variant III supports survival and growth of glioblastoma cells.
|
21896743 |
2011 |
Glioblastoma
|
0.400 |
GeneticVariation
|
disease |
BEFREE |
The EGF receptor (EGFR) is amplified and mutated in glioblastoma, in which its common mutation (ΔEGFR, also called EGFRvIII) has a variety of activities that promote growth and inhibit death, thereby conferring a strong tumor-enhancing effect.
|
24436148 |
2014 |
Glioblastoma
|
0.400 |
AlteredExpression
|
disease |
BEFREE |
We also observed that RhoG is activated by both HGF and EGF, two factors that are thought to be clinically relevant drivers of glioblastoma invasive behavior, and that RhoG is overexpressed in human glioblastoma tumors versus non-neoplastic brain.
|
22966858 |
2012 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
Because oncogene MET and EGF receptor (EGFR) inhibitors are in clinical development against several types of cancer, including glioblastoma, it is important to identify predictive markers that indicate patient subgroups suitable for such therapies.
|
22203985 |
2012 |
Glioblastoma
|
0.400 |
GeneticVariation
|
disease |
BEFREE |
We further compared EGF +61 G/A polymorphism in patients with glioblastoma and Grade I-III glioma accordingly, the stronger association between the EGF +61 G/A polymorphism and the malignancy of glioma was found.
|
24740103 |
2014 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
Activation of the Elk-1 led to an increased survival and a proliferative response with the EGF stimulation in the U138 glioblastoma cells.
|
22085529 |
2012 |
Glioblastoma
|
0.400 |
AlteredExpression
|
disease |
BEFREE |
Thus, our data demonstrate that oncogenic activation of EGFRvIII in GBM is likely maintained by a continuous EGFRwt-EGFRvIII-HB-EGF loop, potentially an attractive target for therapeutic intervention.
|
24077285 |
2014 |
Glioblastoma
|
0.400 |
GeneticVariation
|
disease |
BEFREE |
Anti-synthetic peptide antibody reacting at the fusion junction of deletion-mutant epidermal growth factor receptors in human glioblastoma.
|
1693434 |
1990 |
Glioblastoma
|
0.400 |
AlteredExpression
|
disease |
BEFREE |
Epidermal growth factor receptors (EGFR) expression is frequently amplified in human glioblastoma cells.
|
24012640 |
2014 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
We have observed levels of phosphorylation of STAT5 at position Y699 in cells expressing ΔEGFR that are similar or higher than in cells that overexpress EGFR and are acutely stimulated with EGF, prompting us to investigate the role of STAT5 activation in glioblastoma.
|
22729867 |
2013 |
Glioblastoma
|
0.400 |
AlteredExpression
|
disease |
BEFREE |
The atypical protein kinase C inhibitor induced rapid apoptosis in glioblastoma cells expressing EGFRvIII and killed these cells with an IC50 of 16 microM.
|
12014630 |
2002 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
We have compared the T-CAR1 cells with the human glioblastoma cell line T-MG1, which has 135,000 EGF-receptors and is growth stimulated by EGF.
|
1701094 |
1990 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
Neutralizing the EGF receptor in glioblastoma cells stimulates cell migration by activating uPAR-initiated cell signaling.
|
25347738 |
2015 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
A bispecific ligand-directed toxin (BLT), called EGFATFKDEL, consisting of human epidermal growth factor, a fragment of urokinase, and truncated pseudomonas exotoxin (PE38) was assembled in order to target human glioblastoma.
|
20830604 |
2011 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
The gene encoding the receptor for epidermal growth factor was amplified two- to fivefold in the human glioblastoma cell line SF268.
|
3263568 |
1988 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
In total, these results indicate that the aberrant EGF receptor synthesized in glioblastomas, and which lacks a portion of the extracellular domain necessary for ligand binding, is an activated tyrosine kinase.
|
8036013 |
1994 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
In view of the similarity to the activated viral and cellular erbB genes in the avian system, these mutated and overexpressed EGF receptors might play a role in the onset or development of human glioblastoma cells.
|
3380099 |
1988 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
High-level EGFR amplification was rapidly lost in 5 glioblastoma cultures supplemented with EGF, whereas it was preserved in cultures from the same tumors established without EGF.
|
22316604 |
2012 |
Glioblastoma
|
0.400 |
AlteredExpression
|
disease |
BEFREE |
Two transplantable cell lines of human glioblastoma multiforme GL-3 and GL-5 carried an amplification and overexpression of structurally altered epidermal growth factor (EGF) receptor gene: the 140 kilodalton EGF receptors in these cases exhibited a constitutively expressed tyrosine kinase activity without the ligand.
|
2168866 |
1990 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
Compensatory activation of related ERBB family receptors (ERBB2 and ERBB3) was observed in GBM CSCs deprived of EGFR signal (EGF deprivation or cetuximab inhibition), suggesting an intrinsic GBM resistance mechanism for EGFR-targeted therapy.
|
22745588 |
2012 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
BEFREE |
In addition, ectopic expression of α-catenin or depletion of β-catenin suppresses EGF-promoted glioblastoma cell migration, invasion, and proliferation.
|
20872274 |
2011 |
Glioblastoma
|
0.400 |
GeneticVariation
|
disease |
BEFREE |
Particularly salient are the following: (1) gene amplification is related to increasing grade of human glioma malignancy and occurs in approximately 40% of the most common and most malignant variety of glioma, glioblastoma multiforme (GBM), (2) by far the most commonly amplified gene in glioblastomas is the epidermal growth factor receptor (EGFR) gene, which is amplified in about one third of GBMs, (3) a small percentage of GBMs amplify N-myc or the novel sequence gli, (4) the EGFR gene is rearranged in at least half of gliomas in which it is amplified, and (5) EGFR gene rearrangement results in external domain deletions that yield truncated EGF receptors.
|
1374522 |
1992 |
Glioblastoma
|
0.400 |
Biomarker
|
disease |
CTD_human |
Inhibition of matrix degrading enzymes and invasion in human glioblastoma (U87MG) cells by isoflavones.
|
16598420 |
2006 |