Evidence map›Paper›PMID 21308397›Full record

ArticleJournal of neuro-oncology2011

Bevacizumab can induce reactivity to VEGF-C and -D in human brain and tumour derived endothelial cells.

S Grau, J Thorsteinsdottir, L von Baumgarten, F Winkler, J-C Tonn, C Schichor

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Article in Journal of neuro-oncology, 2011. 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
1.6field-weighted citation impact, top 17% 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, 36 citations in OpenAlex.

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  14. Senescence from glioma stem cell differentiation promotes tumor growth.Biochemical and biophysical research communications · 2016
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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

6 authors at 1 institution in 1 country.

S GrauDepartment of Neurosurgery, Grosshadern Hospital, Ludwig-Maximilian University, Munich, Germany. stefan.grau@uk-koeln.de
J Thorsteinsdottir
L von Baumgarten
F Winkler
J-C Tonn
C Schichor
Ludwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Though clinical trials demonstrated effectiveness of the anti-VEGF antibody bevacizumab (Avastin) in adjuvant therapies for some solid tumours, there are rather few experimental data about cellular effects of bevacizumab on tumour cells and tumour associated endothelial cells. Recent reports demonstrate resistance mechanisms and secondary re-angiogenesis after a transient normalization of tumour vessels. Therefore we investigated the influence of bevacizumab on human glioma cells and human brain derived as well as tumour derived endothelial cells focussing on the role of VEGF-C and -D as potential alternative pro-angiogenic factors. Bevacizumab treatment showed no influence on proliferation after short term exposure (1-5 days) but slowed down endothelial cell proliferation by 25-30% after 14 days treatment. There was no significant induction of apoptosis after short or long term exposure. Tube formation capabilities were significantly impaired by bevacizumab with a continuing effect after 14 days of treatment even after omitting the antibody. VEGF-C and -D had no effect on endothelial cells in untreated or short term treatment groups. However, cells developed responsiveness to these factors in terms of increased proliferation and tube formation after 14 days bevacizumab treatment. Furthermore, bevacizumab induced expression of VEGF-C and -D in glioma cells. Treatment with bevacizumab may induce alterations in human brain and tumour endothelial cells leading to escape mechanisms from anti-VEGF therapy. VEGF-C and -D thus might act as alternative pro-angiogenic factors during anti-VEGF therapy.

Indexed as

Annexin A5Antibodies, Monoclonal, HumanizedApoptosisBevacizumabBrain NeoplasmsCell Line, TumorCell ProliferationDose-Response Relationship, DrugEndothelial CellsFlow CytometryGliomaHumansPlatelet Endothelial Cell Adhesion Molecule-1Tetrazolium SaltsThiazolesTime FactorsAnnexin A5Antibodies, Monoclonal, HumanizedBevacizumabPlatelet Endothelial Cell Adhesion Molecule-1Tetrazolium SaltsThiazolesthiazolyl blueVascular Endothelial Growth Factor CVascular Endothelial Growth Factor D

Identifiers

PMID21308397
OpenAlexW2165071603

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.