Evidence map›Paper›PMID 12417040›Full record

ArticleJapanese journal of cancer research : Gann2002

Frequent epigenetic silencing of the p16 gene in non-small cell lung cancers of tobacco smokers.

Naoki Yanagawa, Gen Tamura, Hiroyuki Oizumi, Nobumasa Takahashi, Yasuhisa Shimazaki, Teiichi Motoyama

Open access · bronzeAbstract read
In one paragraph

Article in Japanese journal of cancer research : Gann, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Smoking exposure induces human lung endothelial cell adaptation to apoptotic stress.American journal of respiratory cell and molecular biology · 2014
    Article
  5. Epigenetic therapy in lung cancer.Frontiers in oncology · 2013
    Article
  6. Article
  7. Article
  8. Article
  9. Environmental epigenetics of asthma: an update.The Journal of allergy and clinical immunology · 2010
    Review
  10. Article
  11. Article
  12. 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

6 authors at 1 institution in 1 country.

Naoki YanagawaDepartment of Pathology, Yamagata University School of Medicine, 2-2-2 Iida-nishi, Yamagata 990-9585, Japan.
Gen Tamura
Hiroyuki Oizumi
Nobumasa Takahashi
Yasuhisa Shimazaki
Teiichi Motoyama
Yamagata University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epidemiological studies have demonstrated a causal link between tobacco smoking and lung cancer. We investigated the association between inactivation of the p16 gene and tobacco smoking in 51 non-small cell lung cancers (NSCLCs). Aberrations of the p16 gene were studied by PCR single-strand conformation polymorphism analysis, followed by direct sequencing, microsatellite analysis, methylation-specific PCR, and immunohistochemistry. Mutations were detected in 3.9% (2/51) of the tumors; the tumors carrying mutations were from smokers. The incidences of loss of heterozygosity, homozygous deletion, and promoter methylation in 37 smokers vs. 14 non-smokers were; 45.9% vs. 28.6%, 16.2% vs. 7.1%, and 35.1% vs. 7.1%, respectively. Among these, only the association between promoter methylation and tobacco smoking was statistically significant (P < 0.05). Therefore, epigenetic aberration is considered to be a major causative event in p16 silencing by tobacco smoking. Loss of p16 protein expression was apparent in 49% (25/51) of the tumors, and was associated with tobacco smoking (P < 0.05) and with histological type (P < 0.05). These findings suggest that tobacco smoking leads to inactivation of the p16 gene mainly through the epigenetic mechanism, ultimately increasing the risk of NSCLC, especially the squamous cell histological type.

Indexed as

Gene SilencingGenes, p16AgedCarcinoma, Non-Small-Cell LungChromosomes, Human, Pair 9DNA MethylationFemaleHumansLoss of HeterozygosityLung NeoplasmsMaleMiddle AgedPromoter Regions, GeneticSmoking

Identifiers

PMID12417040
PMCPMC5926878
OpenAlexW2058431178

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.