Evidence map›Paper›PMID 10597274›Full record

ArticleOncogene1999

The Brn-3b POU family transcription factor represses expression of the BRCA-1 anti-oncogene in breast cancer cells.

V Budhram-Mahadeo, D Ndisang, T Ward, B L Weber, D S Latchman

Abstract read
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In one paragraph

Article in Oncogene, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

32 citing papers in PubMed, 69 citations in OpenAlex.

  1. HDAC2 Is Involved in the Regulation of BRN3A in Melanocytes and Melanoma.International journal of molecular sciences · 2022
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  6. SpliceRCA:ACS central science · 2018
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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 2 countries.

V Budhram-MahadeoDepartment of Molecular Pathology, Windeyer Institute of Medical Sciences, University College London.
D Ndisang
T Ward
B L Weber
D S Latchman
University College London · GBUniversity of Pennsylvania · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The BRCA-1 tumour supressor gene was identified on the basis of mutations which occur in familial breast cancer indicating that its inactivation can cause this disease. Although BRCA-1 does not appear to be mutated in sporadic breast cancer, its expression has been shown to be reduced in tumour material from such cases. We show here that mammary tumours which have reduced levels of BRCA-1 expression show enhanced expression of the Brn-3b POU family transcription factor at both the mRNA and protein levels. This elevated expression of Brn-3b is not found in normal mammary cells, benign tumours or in malignant tumour samples which do not exhibit reduced levels of BRCA-1. In contrast, no correlation was noted between BRCA-1 and expression of the related factor Brn-3a. Moreover, Brn-3b but not Brn-3a can strongly repress the BRCA-1 promoter approximately 20-fold in mammary tumour cells. To our knowledge, this is the first report of a transcription factor which regulates BRCA-1 expression. Thus, Brn-3b may play an important role in regulating expression of BRCA-1 in mammary tumours with enhanced expression of Brn-3b resulting in reduced BRCA-1 expression and thereby being potentially important in tumour development.

Indexed as

Genes, BRCA1Base SequenceDNA-Binding ProteinsDNA PrimersFemaleGene Expression Regulation, NeoplasticHumansPostmenopausePremenopausePromoter Regions, GeneticTranscription Factor Brn-3Transcription Factor Brn-3ATranscription Factor Brn-3BTranscription FactorsTumor Cells, CulturedDNA-Binding ProteinsDNA PrimersPOU4F1 protein, humanPOU4F2 protein, humanTranscription Factor Brn-3Transcription Factor Brn-3ATranscription Factor Brn-3BTranscription Factors

Identifiers

PMID10597274
OpenAlexW1973910854

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.