Evidence map›Paper›PMID 22387366›Full record

ArticleCarcinogenesis2012

CLIC4 is a tumor suppressor for cutaneous squamous cell cancer.

K Stephen Suh, Mariam Malik, Anjali Shukla, Andrew Ryscavage, Lisa Wright, Kasey Jividen, John M Crutchley, Rebecca A Dumont, Ester Fernandez-Salas, Joshua D Webster and 2 more

Abstract read
In one paragraph

Article in Carcinogenesis, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
2.8field-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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Membrane Transporters and Channels in Melanoma.Reviews of physiology, biochemistry and pharmacology · 2021
    Review
  14. Article
  15. The Unusual Suspects in Cytokinesis: Fitting the Pieces Together.Frontiers in cell and developmental biology · 2020
    Review
  16. Review
  17. Article
  18. Article
  19. A G-Quadruplex Structure in the Promoter Region ofInternational journal of molecular sciences · 2018
    Article
  20. 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

12 authors at 3 institutions in 1 country.

K Stephen SuhLaboratory of Cancer Biology and Genetics, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA.
Mariam Malik
Anjali Shukla
Andrew Ryscavage
Lisa Wright
Kasey Jividen
John M Crutchley
Rebecca A Dumont
Ester Fernandez-Salas
Joshua D Webster
R Mark Simpson
Stuart H Yuspa
National Institutes of Health · USAllergan (United States) · USHackensack University Medical Center · US

Funding

Molecular Pathology Research for Cancer Diagnostics and BiomarkersZICBC010953 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SIMPSON, ROBERT · 2009 to 2025
$22.9M
Intramural NIH HHS
6 · The paper itself

Abstract

Chloride intracellular channel (CLIC) 4 is a member of a redox-regulated, metamorphic multifunctional protein family, first characterized as intracellular chloride channels. Current knowledge indicates that CLICs participate in signaling, cytoskeleton integrity and differentiation functions of multiple tissues. In metabolically stressed skin keratinocytes, cytoplasmic CLIC4 is S-nitrosylated and translocates to the nucleus where it enhances transforming growth factor-β (TGF-β) signaling by protecting phospho-Smad 2 and 3 from dephosphorylation. CLIC4 expression is diminished in multiple human epithelial cancers, and the protein is excluded from the nucleus. We now show that CLIC4 expression is reduced in chemically induced mouse skin papillomas, mouse and human squamous carcinomas and squamous cancer cell lines, and the protein is excluded from the nucleus. The extent of reduction in CLIC4 coincides with progression of squamous tumors from benign to malignant. Inhibiting antioxidant defense in tumor cells increases S-nitrosylation and nuclear translocation of CLIC4. Adenoviral-mediated reconstitution of nuclear CLIC4 in squamous cancer cells enhances TGF-β-dependent transcriptional activity and inhibits growth. Adenoviral targeting of CLIC4 to the nucleus of tumor cells in orthografts inhibits tumor growth, whereas elevation of CLIC4 in transgenic epidermis reduces de novo chemically induced skin tumor formation. In parallel, overexpression of exogenous CLIC4 in squamous tumor orthografts suppresses tumor growth and enhances TGF-β signaling. These results indicate that CLIC4 suppresses the growth of squamous cancers, that reduced CLIC4 expression and nuclear residence detected in cancer cells is associated with the altered redox state of tumor cells and the absence of detectable nuclear CLIC4 in cancers contributes to TGF-β resistance and enhances tumor development.

Indexed as

AnimalsCell Line, TumorCell NucleusCell Transformation, NeoplasticChloride ChannelsFibroblastsHumansKeratinocytesMaleMiceMice, Inbred BALB CMice, Inbred SENCARMitochondrial ProteinsNeoplasms, Squamous CellOxidation-ReductionPapillomaChloride ChannelsCLIC4 protein, humanCLIC protein, mouseMitochondrial ProteinsTransforming Growth Factor betaTumor Suppressor Proteins

Identifiers

PMID22387366
PMCPMC3334517
OpenAlexW2112151002

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.