Evidence map›Paper›PMID 21170261›Full record

ArticleNeoplasia (New York, N.Y.)2010

Induction of ΔNp63 by the newly identified keratinocyte-specific transforming growth factor β Signaling Pathway with Smad2 and IκB Kinase α in squamous cell carcinoma.

Nahoko Fukunishi, Iyoko Katoh, Yoshiya Tomimori, Keiichi Tsukinoki, Ryu-Ichiro Hata, Atsuhito Nakao, Yoji Ikawa, Shun-Ichi Kurata

Open access · goldAbstract read
In one paragraph

Article in Neoplasia (New York, N.Y.), 2010. 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
0.8field-weighted citation impact, top 29% 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, 15 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Transforming growth factor-β1 activates ΔNp63/c-Myc to promote oral squamous cell carcinoma.Oral surgery, oral medicine, oral pathology and oral radiology · 2016
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. The interconnectedness of cancer cell signaling.Neoplasia (New York, N.Y.) · 2011
    Article
  11. Article
  12. Article
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

8 authors at 4 institutions in 1 country.

Nahoko FukunishiMedical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan.
Iyoko Katoh
Yoshiya Tomimori
Keiichi Tsukinoki
Ryu-Ichiro Hata
Atsuhito Nakao
Yoji Ikawa
Shun-Ichi Kurata
Kanagawa Dental University · JPRIKEN · JPTokyo Medical and Dental University · JPUniversity of Yamanashi · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The expression of p63 (TP63/p51) occurs in the basal cells of stratified epithelia and is strongly enhanced at the early stages of squamous cell carcinomas (SCCs) of the head and neck, skin, cervix, and others. We analyzed a promoter/enhancer region (2kΔN) that drives the predominant expression of ΔNp63 for sensitivity to Smad signaling pathways. Reporter assays in HepG2 cells showed a moderate activation of 2kΔN by Smad2 and IκB kinase α (IKKα), partners of the newly identified keratinocyte-specific transforming growth factor β (TGF-β) signaling, but not by other Smad molecules. In A431 cells, 2kΔN was activated by Smad2 and IKKα, for which a Smad binding element (SMD2) at -204 was essential. Binding of Smad2 to the chromosomal SMD2 site was detectable. The association of Smad2 with IKKα was evident in the nucleus of A431, accounting for the enhancement of ΔNp63 expression by TGF-β. Moreover, both ΔNp63 and IKKα were necessary to maintain the noninvasive phenotype of this cell line. FaDu, an invasive, Smad4-deficient SCC, also allowed 2kΔN transactivation by transfected Smad2 in the presence of endogenous IKKα. Reflecting the lack of chromosomal SMD2-Smad2 association and the absence of nuclear IKKα, however, endogenous ΔNp63 was not controlled by TGF-β or IKKα in FaDu. SCC tissue arrays showed nuclear accumulation of IKKα and p63 intensification in well-differentiated noninvasive lesions. This study indicates that p63 is a target gene of the proposed keratinocyte-specific TGF-β signal pathway for suppression of the malignant conversion of SCC.

Indexed as

Promoter Regions, GeneticSignal TransductionBlotting, WesternCarcinoma, Squamous CellFluorescent Antibody TechniqueHep G2 CellsHumansI-kappa B KinaseKeratinocytesReverse Transcriptase Polymerase Chain ReactionSmad2 ProteinTrans-ActivatorsTranscription FactorsTransforming Growth Factor betaTumor Suppressor ProteinsI-kappa B KinaseSmad2 ProteinTP63 protein, humanTrans-ActivatorsTranscription FactorsTransforming Growth Factor betaTumor Suppressor Proteins

Identifiers

PMID21170261
PMCPMC3003132
OpenAlexW1630124178

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.