Evidence map›Paper›PMID 19671797›Full record

ArticleCancer research2009

Inhibition of activator protein-1 by sulforaphane involves interaction with cysteine in the cFos DNA-binding domain: implications for chemoprevention of UVB-induced skin cancer.

Sally E Dickinson, Tania F Melton, Erik R Olson, Jian Zhang, Kathylynn Saboda, G Timothy Bowden

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

46 citing papers in PubMed, 77 citations in OpenAlex.

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  12. Mechanistic review of sulforaphane as a chemoprotective agent in bladder cancer.American journal of clinical and experimental urology · 2023
    Review
  13. Article
  14. Review
  15. Article
  16. Prevention of Skin Carcinogenesis by the Non-β-blocking R-carvedilol Enantiomer.Cancer prevention research (Philadelphia, Pa.) · 2021
    Article
  17. Review
  18. Article
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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

6 authors at 1 institution in 1 country.

Sally E DickinsonArizona Cancer Center, University of Arizona, Tucson, Arizona 85724, USA.
Tania F Melton
Erik R Olson
Jian Zhang
Kathylynn Saboda
G Timothy Bowden
University of Arizona · US

Funding

VITAMIN AP30CA023074 · NCI · UNIVERSITY OF ARIZONA · PI Dan Theodorescu · 1985 to 2026
$110.2M
SOUTHWEST ENVIRONMENTAL HEALTH SCIENCES CENTERP30ES006694 · NIEHS · UNIVERSITY OF ARIZONA · PI DEAN BILLHEIMER · 1994 to 2026
$36.7M
VITAMIN A, AND ITS PRECURSORS AND DERIVATIVES AS THERAPEUTIC MODALITIESP01CA027502 · NCI · UNIVERSITY OF ARIZONA · PI STRATTON, STEVEN P · 1985 to 2015
$36.3M
Cancer Prevention and Control Translational ResearchR25CA078447 · NCI · UNIVERSITY OF ARIZONA · PI ALBERTS, DAVID SAMUEL · 1998 to 2014
$7.6M
Prevention of UVB-induced skin cancer using sulforaphane: roles of AP-1 and Nrf2.K07CA132956 · NCI · UNIVERSITY OF ARIZONA · PI DICKINSON, SALLY E · 2008 to 2012
$671k
NCI NIH HHS 1K07CA132956-01NCI NIH HHS CA23074NCI NIH HHS CA27502NCI NIH HHS K07 CA132956NCI NIH HHS P01 CA027502NCI NIH HHS P30 CA023074NCI NIH HHS R25 CA078447NCI NIH HHS R25T CA78447NIEHS NIH HHS ES06694NIEHS NIH HHS P30 ES006694
6 · The paper itself

Abstract

Sulforaphane is an isothiocyanate derived from cruciferous vegetables that has been linked to decreased risk of certain cancers. Although the role of sulforaphane in the induction of the transcription factor Nrf2 has been studied extensively, there is also evidence that inhibition of the transcription factor activator protein-1 (AP-1) may contribute to the chemopreventive properties of this compound. In this study, we show for the first time that sulforaphane is effective at reducing the multiplicity and tumor burden of UVB-induced squamous cell carcinoma in a mouse model using cotreatment with the compound and the carcinogen. We also show that sulforaphane pretreatment is able to reduce the activity of AP-1 luciferase in the skin of transgenic mice after UVB. Chromatin immunoprecipitation analysis verified that a main constituent of the AP-1 dimer, cFos, is inhibited from binding to the AP-1 DNA binding site by sulforaphane. Electrophoretic mobility shift assay analysis of nuclear proteins also shows that sulforaphane and diamide, both known to react with cysteine amino acids, are effective at inhibiting AP-1 from binding to its response element. Using truncated recombinant cFos and cJun, we show that mutation of critical cysteines in the DNA-binding domain of these proteins (Cys(154) in cFos and Cys(272) in cJun) results in loss of sensitivity to both sulforaphane and diamide in electrophoretic mobility shift assay analysis. Together, these data indicate that inhibition of AP-1 activity may be an important molecular mechanism in chemoprevention of squamous cell carcinoma by sulforaphane.

Indexed as

AnimalsAnticarcinogenic AgentsBinding SitesCarcinoma, Squamous CellCysteineDisease Models, AnimalFemaleIsothiocyanatesMiceProtein BindingProto-Oncogene Proteins c-fosProto-Oncogene Proteins c-junRecombinant ProteinsSkin NeoplasmsSulfoxidesThiocyanatesAnticarcinogenic AgentsCysteineIsothiocyanatesProto-Oncogene Proteins c-fosProto-Oncogene Proteins c-junRecombinant ProteinssulforaphaneSulfoxidesThiocyanatesTranscription Factor AP-1

Identifiers

PMID19671797
PMCPMC2741483
OpenAlexW2162022793

What OpenQuestion holds

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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.