Evidence map›Paper›PMID 19798054›Full record

ArticleThe EMBO journal2009

AP-2gamma promotes proliferation in breast tumour cells by direct repression of the CDKN1A gene.

Christopher M J Williams, Angelo G Scibetta, J Karsten Friedrich, Monica Canosa, Chiara Berlato, Charlotte H Moss, Helen C Hurst

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

29 citing papers in PubMed, 44 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Christopher M J WilliamsBarts & The London School of Medicine and Dentistry, Queen Mary University of London, Centre for Tumour Biology, Institute of Cancer, Charterhouse Square, London, UK.
Angelo G Scibetta
J Karsten Friedrich
Monica Canosa
Chiara Berlato
Charlotte H Moss
Helen C Hurst
Queen Mary University of London · GB

Funding

Cancer Research UK
6 · The paper itself

Abstract

Overexpression of the activator protein (AP)-2gamma transcription factor in breast tumours has been identified as an independent predictor of poor outcome and failure of hormone therapy. To understand further the function of AP-2gamma in breast carcinoma, we have used an RNA interference and gene expression profiling strategy with the MCF-7 cell line as a model. Gene expression changes between control and silenced cells implicate AP-2gamma in the control of cell cycle progression and developmental signalling. A function for AP-2gamma in cell cycle control was verified using flow cytometry: AP-2gamma silencing led to a partial G1/S arrest and induction of the cyclin-dependent kinase inhibitor, p21cip/CDKN1A. Reporter and chromatin immunoprecipitation assays demonstrated a direct, functional interaction by AP-2gamma at the CDKN1A proximal promoter. AP-2gamma silencing coincided with acquisition of an active chromatin conformation at the CDKN1A locus and increased gene expression. These data provide a mechanism whereby AP-2gamma overexpression can promote breast epithelial proliferation and, coupled with previously published data, suggest how loss of oestrogen regulation of AP-2gamma may contribute to the failure of hormone therapy in patients.

Indexed as

Cell ProliferationBreast NeoplasmsCell CycleCyclin-Dependent Kinase Inhibitor p21Down-RegulationFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticGene SilencingHumansOligonucleotide Array Sequence AnalysisTranscription Factor AP-2Tumor Cells, CulturedCDKN1A protein, humanCyclin-Dependent Kinase Inhibitor p21Transcription Factor AP-2

Identifiers

PMID19798054
PMCPMC2782101
OpenAlexW2076857429

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.