Evidence map›Paper›PMID 22403725›Full record

ArticlePloS one2012

Methylation of Wnt7a is modulated by DNMT1 and cigarette smoke condensate in non-small cell lung cancer.

Meredith A Tennis, Michelle M Vanscoyk, Lora A Wilson, Nicole Kelley, Robert A Winn

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Genetic Underpinnings of Pulmonary Fibrosis: An Overview.Cardiovascular & hematological agents in medicinal chemistry · 2024
    Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Nicotine attenuates global genomic DNA methylation by influencing DNMTs gene expression in human endometrial stromal cells.Genes and environment : the official journal of the Japanese Environmental Mutagen Society · 2020
    Article
  12. Article
  13. Idiopathic Pulmonary Fibrosis (IPF): An Overview.Journal of clinical medicine · 2018
    Review
  14. Article
  15. Inhibition of WNT7A-β-catenin signaling pathway sensitizes oral squamous cell carcinoma to cisplatin.International journal of clinical and experimental pathology · 2018
    Article
  16. Wnt signaling in cervical cancer?Journal of Cancer · 2018
    Review
  17. Article
  18. Article
  19. Review
  20. 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

5 authors at 2 institutions in 1 country.

Meredith A TennisDepartment of Medicine, University of Colorado School of Medicine, Aurora, Colorado, United States of America. Meredith.tennis@gmail.com
Michelle M Vanscoyk
Lora A Wilson
Nicole Kelley
Robert A Winn
University of Colorado Denver · USVirginia Commonwealth University · US

Funding

Role of the noncanonical WNT pathway in non-small cell lung cancerR01CA138528 · NCI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI WINN, ROBERT A. · 2010 to 2014
$1.4M
Wnt 7a and Its Role in EMT and Lung Cancer MetastasisR21CA153268 · NCI · UNIVERSITY OF COLORADO DENVER · PI WINN, ROBERT A. · 2010 to 2011
$270k
NCI NIH HHS R01 CA138528NCI NIH HHS R21 CA153268NCI NIH HHS R21 CA153268-01
6 · The paper itself

Abstract

Wnt7a is known to be a tumor suppressor that is lost in NSCLC, but no mechanism of loss has been established. Methylation of promoter regions has been established as a common mechanism of loss of tumor suppressor expression in NSCLC. We previously demonstrated that loss of Wnt7a in non-transformed lung epithelial cell lines led to increased cell growth, altered 3-D culture growth, and increased migration. The Wnt7a promoter has a higher percentage of methylation in NSCLC tumor tissue compared to matched normal lung tissue and methylation of the promoter region leads to decreased activity. We treated H157 and H1299 NSCLC cell lines with 5-Aza-2'-deoxycytidine and detected loss of Wnt7a promoter methylation, increased Wnt7a expression, and increased activity of the Wnt7a lung signaling pathway. When DNMT1 expression was knocked down by shRNA, expression of Wnt7a increased and methylation decreased. Together these data suggest that in NSCLC, Wnt7a is lost by methylation in a subset of tumors and that this methylation is maintained by DNMT1. Restoration of Wnt7a expression through demethylation could be an important therapeutic approach in the treatment of NSCLC.

Indexed as

AzacitidineCarcinoma, Non-Small-Cell LungDecitabineDNA (Cytosine-5-)-Methyltransferase 1DNA (Cytosine-5-)-MethyltransferasesDNA MethylationEpithelial CellsLungLung NeoplasmsPhenotypePromoter Regions, GeneticSmokeSmokingWnt ProteinsAzacitidineDecitabineDNA (Cytosine-5-)-Methyltransferase 1DNA (Cytosine-5-)-MethyltransferasesDNMT1 protein, humanSmokeWNT7A protein, humanWnt Proteins

Identifiers

PMID22403725
PMCPMC3293913
OpenAlexW2135828846

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.