Evidence map›Paper›PMID 21346772›Full record

ArticleThe Journal of investigative dermatology2011

C/EBPα expression is downregulated in human nonmelanoma skin cancers and inactivation of C/EBPα confers susceptibility to UVB-induced skin squamous cell carcinomas.

Elizabeth A Thompson, Songyun Zhu, Jonathan R Hall, John S House, Rakesh Ranjan, Jeanne A Burr, Yu-Ying He, David M Owens, Robert C Smart

Abstract read
In one paragraph

Article in The Journal of investigative dermatology, 2011. 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
–field-weighted citation impact
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.

  1. Article
  2. Article
  3. Article
  4. Cross-talk of cutaneous beta human papillomaviruses and the immune system: determinants of disease penetrance.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Control of skin cancer by the circadian rhythm.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  12. Review
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

9 authors.

Elizabeth A ThompsonCell Signaling and Cancer Group, Department of Environmental and Molecular Toxicology, North Carolina State University, Raleigh, North Carolina 27695-7633, USA.
Songyun Zhu
Jonathan R Hall
John S House
Rakesh Ranjan
Jeanne A Burr
Yu-Ying He
David M Owens
Robert C Smart

Funding

TRAINING IN BIOCHEMICAL AND ENVIRONMENTAL TOXICOLOGYT32ES007046 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI Seth William Kullman · 1985 to 2026
$5.1M
Role of C/EBPs in Squamous Differentiation and NeoplasiaR01CA046637 · NCI · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI SMART, ROBERT C · 1996 to 2011
$2.5M
Mechanisms of UVA-induced skin cancerR01ES016936 · NIEHS · UNIVERSITY OF CHICAGO · PI HE, YU-YING · 2010 to 2014
$2.2M
Regulation and Function of C/EBP in UVB ResponsesR01ES012473 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI SMART, ROBERT C · 2005 to 2010
$1.6M
DIACYLGLYCEROLS AS TUMOR PROMOTERSR29CA046637 · NCI · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI SMART, ROBERT C · 1990 to 1994
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NCI NIH HHS CA46637NCI NIH HHS R01 CA046637NIEHS NIH HHS ES007046NIEHS NIH HHS ES12473NIEHS NIH HHS R01 ES012473NIEHS NIH HHS R01 ES016936NIEHS NIH HHS T32 ES007046
6 · The paper itself

Abstract

Human epidermis is routinely subjected to DNA damage induced by UVB solar radiation. Cell culture studies have revealed an unexpected role for C/EBPα (CCAAT/enhancer-binding protein-α) in the DNA damage response network, where C/EBPα is induced following UVB DNA damage, regulates the G(1) checkpoint, and diminished or ablated expression of C/EBPα results in G(1) checkpoint failure. In the current study we observed that C/EBPα is induced in normal human epidermal keratinocytes and in the epidermis of human subjects exposed to UVB radiation. The analysis of human skin precancerous and cancerous lesions (47 cases) for C/EBPα expression was conducted. Actinic keratoses, a precancerous benign skin growth and precursor to squamous cell carcinoma (SCC), expressed levels of C/EBPα similar to normal epidermis. Strikingly, all invasive SCCs no longer expressed detectable levels of C/EBPα. To determine the significance of C/EBPα in UVB-induced skin cancer, SKH-1 mice lacking epidermal C/EBPα (CKOα) were exposed to UVB. CKOα mice were highly susceptible to UVB-induced SCCs and exhibited accelerated tumor progression. CKOα mice displayed keratinocyte cell cycle checkpoint failure in vivo in response to UVB that was characterized by abnormal entry of keratinocytes into S phase. Our results demonstrate that C/EBPα is silenced in human SCC and loss of C/EBPα confers susceptibility to UVB-induced skin SCCs involving defective cell cycle arrest in response to UVB.

Indexed as

AnimalsCarcinoma, Squamous CellCCAAT-Enhancer-Binding Protein-alphaCell CycleCells, CulturedGenes, p53HumansKeratosis, ActinicMaleMiceMice, HairlessMice, Inbred C57BLMutationNeoplasms, Radiation-InducedPrecancerous ConditionsSkinCCAAT-Enhancer-Binding Protein-alpha

Identifiers

PMID21346772
PMCPMC3418815

What OpenQuestion holds

Textmetadata
LicenceTDM
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.