Evidence map›Paper›PMID 9632747›Full record

ArticleMolecular and cellular biology1998

RB and c-Myc activate expression of the E-cadherin gene in epithelial cells through interaction with transcription factor AP-2.

E Batsché, C Muchardt, J Behrens, H C Hurst, C Crémisi

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In one paragraph

Article in Molecular and cellular biology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

57 citing papers in PubMed, 161 citations in OpenAlex.

  1. Article
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  4. Interactions and Feedbacks in E-Cadherin Transcriptional Regulation.Frontiers in cell and developmental biology · 2021
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  15. Impact of 4HPR on the expression of E-Cad in human bladder transitional epithelial cancer cells T24.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2012
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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 4 institutions in 3 countries.

E BatschéCJF INSERM 94-02, Université René Descartes, 75270 Paris cedex 06, France.
C Muchardt
J Behrens
H C Hurst
C Crémisi
Inserm · FRInstitut Pasteur · FRMax Delbrück Center · DEThe Honourable Society of Lincoln's Inn · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

E-cadherin plays a pivotal role in the biogenesis of the first epithelium during development, and its down-regulation is associated with metastasis of carcinomas. We recently reported that inactivation of RB family proteins by simian virus 40 large T antigen (LT) in MDCK epithelial cells results in a mesenchymal conversion associated with invasiveness and a down-regulation of c-Myc. Reexpression of RB or c-Myc in such cells allows the reexpression of epithelial markers including E-cadherin. Here we show that both RB and c-Myc specifically activate transcription of the E-cadherin promoter in epithelial cells but not in NIH 3T3 mesenchymal cells. This transcriptional activity is mediated in both cases by the transcription factor AP-2. In vitro AP-2 and RB interaction involves the N-terminal domain of AP-2 and the oncoprotein binding domain and C-terminal domain of RB. In vivo physical interaction between RB and AP-2 was demonstrated in MDCK and HaCat cells. In LT-transformed MDCK cells, LT, RB, and AP-2 were all coimmunoprecipitated by each of the corresponding antibodies, and a mutation of the RB binding domain of the oncoprotein inhibited its binding to both RB and AP-2. Taken together, our results suggest that there is a tripartite complex between LT, RB, and AP-2 and that the physical and functional interactions between LT and AP-2 are mediated by RB. Moreover, they define RB and c-Myc as coactivators of AP-2 in epithelial cells and shed new light on the significance of the LT-RB complex, linking it to the dedifferentiation processes occurring during tumor progression. These data confirm the important role for RB and c-Myc in the maintenance of the epithelial phenotype and reveal a novel mechanism of gene activation by c-Myc.

Indexed as

Gene Expression RegulationGenes, myc3T3 CellsAnimalsAntigens, Polyomavirus TransformingCadherinsCell LineCell Line, TransformedDNA-Binding ProteinsDogsEpithelial CellsHumansMicePromoter Regions, GeneticRecombinant Fusion ProteinsRetinoblastoma ProteinAntigens, Polyomavirus TransformingCadherinsDNA-Binding ProteinsRecombinant Fusion ProteinsRetinoblastoma ProteinTranscription Factor AP-2Transcription Factors

Identifiers

PMID9632747
PMCPMC108947
OpenAlexW2120331294

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.