Evidence map›Paper›PMID 18268325›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

IKKalpha is a critical coregulator of a Smad4-independent TGFbeta-Smad2/3 signaling pathway that controls keratinocyte differentiation.

Pascal Descargues, Alok K Sil, Yuji Sano, Olexandr Korchynskyi, Gangwen Han, Philip Owens, Xiao-Jing Wang, Michael Karin

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 1 pooled it
7.3field-weighted citation impact, top 2% 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

95 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. The roles of IKKα in normal physiology and cancer.Cell communication and signaling : CCS · 2026
    Review
  4. Article
  5. Article
  6. Advances in mesenchymal stem cells therapy for tendinopathies.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2024
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. m6A modification of mRNA in skin diseases.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2022
    Article
  12. Article
  13. Article
  14. IKKα-deficient lung adenocarcinomas generate an immunosuppressive microenvironment by overproducing Treg-inducing cytokines.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  15. Article
  16. Article
  17. Review
  18. Article
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  20. Review

35 more citing papers are in PubMed but not listed here.

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 2 institutions in 2 countries.

Pascal DescarguesLaboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0723, USA.
Alok K Sil
Yuji Sano
Olexandr Korchynskyi
Gangwen Han
Philip Owens
Xiao-Jing Wang
Michael Karin
University of California, San Diego · USOregon Health & Science University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cell-cycle exit and differentiation of suprabasal epidermal keratinocytes require nuclear IkappaB kinase alpha (IKKalpha), but not its protein kinase activity. IKKalpha also is a suppressor of squamous cell carcinoma (SCC), but its mode of action remains elusive. Postulating that IKKalpha may serve as a transcriptional regulator in keratinocytes, we searched for cell-cycle-related genes that could illuminate this function. IKKalpha was found to control several Myc antagonists, including Mad1, Mad2, and Ovol1, through the association with TGFbeta-regulated Smad2/3 transcription factors and is required for Smad3 recruitment to at least one of these targets. Surprisingly, Smad2/3-dependent Mad1 induction and keratinocyte differentiation are independent of Smad4, the almost universal coregulator of canonical TGFbeta signaling. IKKalpha also is needed for nuclear accumulation of activated Smad2/3 in the epidermis, and Smad2/3 are required for epidermal differentiation. We suggest that a TGFbeta-Smad2/3-IKKalpha axis is a critical Smad4-independent regulator of keratinocyte proliferation and differentiation.

Indexed as

AnimalsCell CycleCell DifferentiationCell NucleusCells, CulturedChromatinGene Expression RegulationI-kappa B KinaseKeratinocytesMiceMice, KnockoutProtein TransportSignal TransductionSmad2 ProteinSmad3 ProteinSmad4 ProteinChromatinI-kappa B KinaseSmad2 ProteinSmad3 ProteinSmad4 ProteinTransforming Growth Factor beta

Identifiers

PMID18268325
PMCPMC2268163
OpenAlexW2042681354

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.