Evidence map›Paper›PMID 23369005›Full record

ArticleMolecular cancer2013

Androgen up-regulates vascular endothelial growth factor expression in prostate cancer cells via an Sp1 binding site.

Kurtis Eisermann, Carly J Broderick, Anton Bazarov, Mustafa M Moazam, Gail C Fraizer

Open access · goldAbstract read
In one paragraph

Article in Molecular cancer, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 2% 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

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

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  11. Role of post-translational modifications of Sp1 in cancer: state of the art.Frontiers in cell and developmental biology · 2024
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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

5 authors at 2 institutions in 1 country.

Kurtis EisermannSchool of Biomedical Sciences, Kent State University, Kent, OH, USA.
Carly J Broderick
Anton Bazarov
Mustafa M Moazam
Gail C Fraizer
Kent State University · USBoston Children's Hospital · US

Funding

NCI NIH HHS 1CA33160
6 · The paper itself

Abstract

backgroundVascular Endothelial Growth Factor (VEGF) is regulated by a number of different factors, but the mechanism(s) behind androgen-mediated regulation of VEGF in prostate cancer are poorly understood.

resultsThree novel androgen receptor (AR) binding sites were discovered in the VEGF promoter and in vivo binding of AR to these sites was demonstrated by chromatin immunoprecipitation. Mutation of these sites attenuated activation of the VEGF promoter by the androgen analog, R1881 in prostate cancer cells. The transcription factors AR and Sp1 were shown to form a nuclear complex and both bound the VEGF core promoter in chromatin of hormone treated CWR22Rv1 prostate cancer cells. The importance of the Sp1 binding site in hormone mediated activation of VEGF expression was demonstrated by site directed mutagenesis. Mutation of a critical Sp1 binding site (Sp1.4) in the VEGF core promoter region prevented activation by androgen. Similarly, suppression of Sp1 binding by Mithramycin A treatment significantly reduced VEGF expression.

conclusionsOur mechanistic study of androgen mediated induction of VEGF expression in prostate cancer cells revealed for the first time that this induction is mediated through the core promoter region and is dependent upon a critical Sp1 binding site. The importance of Sp1 binding suggests that therapy targeting the AR-Sp1 complex may dampen VEGF induced angiogenesis and, thereby, block prostate cancer progression, helping to maintain the indolent form of prostate cancer.

Indexed as

Gene Expression Regulation, NeoplasticTranscriptional ActivationAndrogen Receptor AntagonistsAnilidesBase SequenceBinding SitesCell Line, TumorChromatinGene ExpressionHumansMaleMetriboloneNitrilesPromoter Regions, GeneticProstatic NeoplasmsProtein BindingAndrogen Receptor AntagonistsAnilidesbicalutamideChromatinMetriboloneNitrilesReceptors, AndrogenSp1 Transcription FactorTestosterone CongenersTosyl CompoundsVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID23369005
PMCPMC3616929
OpenAlexW2134644611

What OpenQuestion holds

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LicenceCC BY
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.