Evidence map›Paper›PMID 23577085›Full record

SynthesisPloS one2013

Association between P(16INK4a) promoter methylation and non-small cell lung cancer: a meta-analysis.

Jundong Gu, Yanjun Wen, Siwei Zhu, Feng Hua, Hui Zhao, Hongrui Xu, Jiacong You, Linlin Sun, Weiqiang Wang, Jun Chen and 1 more

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 4 pooled it
2.4field-weighted citation impact, top 11% 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

11 citing papers in PubMed, 4 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. P16Thoracic cancer · 2018
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Review
  6. Review
  7. Article
  8. Aberrant methylation ofJournal of Cancer · 2016
    Article
  9. Role ofOncoTargets and therapy · 2016
    Article
  10. Article
  11. 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

11 authors at 3 institutions in 1 country.

Jundong GuTianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China.
Yanjun Wen
Siwei Zhu
Feng Hua
Hui Zhao
Hongrui Xu
Jiacong You
Linlin Sun
Weiqiang Wang
Jun Chen
Qinghua Zhou
Tianjin Medical University General Hospital · CNTianjin People's Hospital · CNShandong Tumor Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAberrant methylation of CpG islands acquired in tumor cells in promoter regions plays an important role in carcinogenesis. Accumulated evidence demonstrates P(16INK4a) gene promoter hypermethylation is involved in non-small cell lung carcinoma (NSCLC), indicating it may be a potential biomarker for this disease. The aim of this study is to evaluate the frequency of P(16INK4a) gene promoter methylation between cancer tissue and autologous controls by summarizing published studies.

methodsBy searching Medline, EMBSE and CNKI databases, the open published studies about P(16INK4a) gene promoter methylation and NSCLC were identified using a systematic search strategy. The pooled odds of P(16INK4A) promoter methylation in lung cancer tissue versus autologous controls were calculated by meta-analysis method.

resultsThirty-four studies, including 2 652 NSCLC patients with 5 175 samples were included in this meta-analysis. Generally, the frequency of P(16INK4A) promoter methylation ranged from 17% to 80% (median 44%) in the lung cancer tissue and 0 to 80% (median 15%) in the autologous controls, which indicated the methylation frequency in cancer tissue was much higher than that in autologous samples. We also find a strong and significant correlation between tumor tissue and autologous controls of P(16INK4A) promoter methylation frequency across studies (Correlation coefficient 0.71, 95% CI:0.51-0.83, P<0.0001). And the pooled odds ratio of P(16INK4A) promoter methylation in cancer tissue was 3.45 (95% CI: 2.63-4.54) compared to controls under random-effect model.

conclusionFrequency of P(16INK4a) promoter methylation in cancer tissue was much higher than that in autologous controls, indicating promoter methylation plays an important role in carcinogenesis of the NSCLC. Strong and significant correlation between tumor tissue and autologous samples of P(16INK4A) promoter methylation demonstrated a promising biomarker for NSCLC.

Indexed as

DNA MethylationAdultAgedAged, 80 and overCarcinoma, Non-Small-Cell LungCyclin-Dependent Kinase Inhibitor p16FemaleHumansLung NeoplasmsMaleMiddle AgedPromoter Regions, GeneticRegression AnalysisCyclin-Dependent Kinase Inhibitor p16

Identifiers

PMID23577085
PMCPMC3618325
OpenAlexW2090998631

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.