Evidence map›Paper›PMID 20972454›Full record

ArticleOncogene2011

Mutant p53 subverts p63 control over KLF4 expression in keratinocytes.

N Cordani, S Pozzi, E Martynova, D Fanoni, S Borrelli, D Alotto, C Castagnoli, E Berti, M A Viganò, R Mantovani

Abstract read
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In one paragraph

Article in Oncogene, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
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  6. Article
  7. p63 Is a Promising Marker in the Diagnosis of Unusual Skin Cancer.International journal of molecular sciences · 2019
    Review
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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

10 authors at 3 institutions in 1 country.

N CordaniDipartimento di Scienze Biomolecolari e Biotecnologie, Università degli Studi di Milano Via Celoria 26, Milano, Italy.
S Pozzi
E Martynova
D Fanoni
S Borrelli
D Alotto
C Castagnoli
E Berti
M A Viganò
R Mantovani
University of Milan · ITCTO Hospital · ITUniversity of Milano-Bicocca · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genetic experiments established that p63 is crucial for the development and maintenance of pluri-stratified epithelia and KLF4 for the barrier function of the skin. KLF4 is one of the factors that reprogram differentiated cells to iPS. We investigated the relationship between p63 and KLF4 using RNA interference, overexpression, chromatin immunoprecipitation and transient transfections with reporter constructs. We find that p63 directly represses KLF4 in normal keratinocytes (KCs) by binding to upstream promoter sites. Unlike p63, KLF4 levels are high in the upper layers of human skin and increase upon differentiation of KCs in vitro. In HaCaT KCs, which harbor two mutant alleles of p53, inactivation of p63 and of mutant p53 leads to KLF4 repression. p63 and p53 mutants are bound to sites in the KLF4 core promoter. Importantly, expression of the H179Y and R282Q p53 mutants in primary KCs is sufficient to activate endogenous KLF4. Finally, immunohistochemical analysis of tissue arrays confirms increased coexpression of KLF4 and mutant p53 in squamous cell carcinomas. Our data indicate that suppression of KLF4 is part of the growth-promoting strategy of p63 in the lower layers of normal epidermis, and that tumor-predisposing p53 mutations hijack p63 to a different location on the promoter, turning it into an activator of this reprogramming factor.

Indexed as

MutationBlotting, WesternCarcinoma, Squamous CellCell DifferentiationChromatin ImmunoprecipitationFluorescent Antibody TechniqueGene ExpressionGene Expression RegulationHumansImmunohistochemistryKeratinocytesKruppel-Like Factor 4Kruppel-Like Transcription FactorsMembrane ProteinsMicroscopy, ConfocalPromoter Regions, GeneticCKAP4 protein, humanKLF4 protein, humanKruppel-Like Factor 4Kruppel-Like Transcription FactorsMembrane ProteinsTumor Suppressor Protein p53

Identifiers

PMID20972454
OpenAlexW1993229637

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.