Evidence map›Paper›PMID 17043641›Full record

ArticleOncogene2007

Regulation of clustered gene expression by cofactor of BRCA1 (COBRA1) in breast cancer cells.

S E Aiyar, A L Blair, D A Hopkinson, S Bekiranov, R Li

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

12 citing papers in PubMed, 25 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

5 authors at 1 institution in 1 country.

S E AiyarDepartment of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, VA, USA.
A L Blair
D A Hopkinson
S Bekiranov
R Li
University of Virginia · US

Funding

A Novel Corepressor of Estrogen ReceptorR01DK064604 · NIDDK · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI LI, RONG · 2004 to 2007
$1.0M
NIDDK NIH HHS DK064604
6 · The paper itself

Abstract

Eucaryotic genes that are coordinately expressed tend to be clustered. Furthermore, gene clusters across chromosomal regions are often upregulated in various tumors. However, relatively little is known about how gene clusters are coordinately expressed in physiological or pathological conditions. Cofactor of BRCA1 (COBRA1), a subunit of the human negative elongation factor, has been shown to repress estrogen-stimulated transcription of trefoil factor 1 (TFF1 or pS2) by stalling RNA polymerase II. Here, we carried out a genome-wide study to identify additional physiological target genes of COBRA1 in breast cancer cells. The study identified a total of 134 genes that were either activated or repressed upon small hairpin RNA-mediated reduction of COBRA1. Interestingly, many COBRA1-regulated genes reside as clusters on the chromosomes and have been previously implicated in cancer development. Detailed examination of two such clusters on chromosome 21 (21q22) and chromosome X (Xp11) reveals that COBRA1 is physically associated with a subset of its regulated genes in each cluster. In addition, COBRA1 was shown to regulate both estrogen-dependent and -independent transcription of the gene cluster at 21q22, which encompasses the previously identified COBRA1-regulated TFF1 (pS2) locus. Thus, COBRA1 plays a critical role in the regulation of clustered gene expression at preferred chromosomal domains in breast cancer cells.

Indexed as

Gene Expression Regulation, NeoplasticMultigene FamilyBiomarkers, TumorBreast NeoplasmsChromatin ImmunoprecipitationChromosomes, Human, Pair 22Chromosomes, Human, XGenome, HumanHumansImmunoblottingNuclear ProteinsOligonucleotide Array Sequence AnalysisReceptors, EstrogenReverse Transcriptase Polymerase Chain ReactionRNA, MessengerRNA Polymerase IIBiomarkers, Tumornegative elongation factorNuclear ProteinsReceptors, EstrogenRNA, MessengerRNA Polymerase IIRNA, Small InterferingTFF1 protein, humanTranscription FactorsTrefoil Factor-1Tumor Suppressor Proteins

Identifiers

PMID17043641
OpenAlexW2068894136

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.