Evidence map›Paper›PMID 15072443›Full record

ArticleJournal of neuro-oncology

Functional significance of vascular endothelial growth factor receptor expression on human glioma cells.

Rolf Mentlein, Frauke Forstreuter, Hubertus M Mehdorn, Janka Held-Feindt

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of neuro-oncology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.8field-weighted citation impact, top 31% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 51 citations in OpenAlex.

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  10. miR-302b suppresses cell invasion and metastasis by directly targeting AKT2 in human hepatocellular carcinoma cells.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
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  19. Angiogenesis in gliomas: imaging and experimental therapeutics.Brain pathology (Zurich, Switzerland) · 2005
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Rolf MentleinDepartment of Anatomy, University of Kiel, Kiel, Germany. rment@anat.uni-kiel.de
Frauke Forstreuter
Hubertus M Mehdorn
Janka Held-Feindt
Kiel University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vascular endothelial growth factor (VEGF) is one of the most important angiogenesis factors. In many tumors, VEGF plays a pivotal role for their vascularization and is necessary to supply the malignant tissue with oxygen and nutrients. However, VEGF receptors (VEGFR) have recently been detected also on some tumor cells, and autocrine mitogenic effects of VEGF have been suspected. Since glioma cells are known to produce large amounts of VEGF, we investigated VEGFR-expression and effects of VEGF on glioma cells. The three glioma cell lines and eight glioma cells cultivated from WHO grade IV gliomas investigated strongly expressed VEGF121 and VEGF165, but weakly either VEGFR-1 or -2, sometimes for both, as evidenced by reverse transcription-polymerase chain reaction (RT-PCR) and immunocytochemistry. Quantitative RT-PCR revealed a 1000- to 50-fold lower expression of VEGFR than in cultivated human umbilical vein endothelial cells. In two glioma cell lines analyzed, VEGF induced a weak tyrosine phosphorylation of the VEGFR, but downstream signal transduction effects on the mitogen-activated protein kinases p42/p44 or transcription factors like AP-1 or NFKB were within the background of the methods. In accordance, VEGF or the VEGFR agonists VEGF-D or placenta growth factor (P1GF) did not produce significant effects on glioma cell proliferation or VEGF production. We conclude that despite a low expression of VEGFR in some glioma cells functional effects are low and autocrine growth stimulatory effects within a glioma are minor.

Indexed as

Angiogenesis Inducing AgentsBlotting, WesternCell DivisionElectrophoretic Mobility Shift AssayEndothelial CellsEnzyme-Linked Immunosorbent AssayGene ExpressionGliomaHumansImmunohistochemistryMitogen-Activated Protein KinasesNeovascularization, PathologicReceptors, Vascular Endothelial Growth FactorReverse Transcriptase Polymerase Chain ReactionSignal TransductionTranscription FactorsAngiogenesis Inducing AgentsMitogen-Activated Protein KinasesReceptors, Vascular Endothelial Growth FactorTranscription FactorsVascular Endothelial Growth Factor A

Identifiers

PMID15072443
OpenAlexW1983993814

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.