Evidence map›Paper›PMID 26617874›Full record

ArticleInternational journal of clinical and experimental pathology2015

Down-regulation of PAX6 by promoter methylation is associated with poor prognosis in non small cell lung cancer.

Xiangxian Zhang, Xiao Yang, Junling Wang, Tiansong Liang, Yue Gu, Daoke Yang

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental pathology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Epigenetic, Genetic, and Functional Germline Alterations ofCurrent issues in molecular biology · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. DNA hypermethylation ofEpigenetics · 2022
    Article
  8. Journal of clinical pathology · 2022
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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  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 3 institutions in 1 country.

Xiangxian ZhangXiangya Hospital of Central South University China.
Xiao YangXiangya Hospital of Central South University China.
Junling WangDepartment of Seven-year Clinical Medicine, Grade 2011, Zhengzhou University China.
Tiansong LiangRadiotherapy and Severe Tumor Institution, Zhengzhou University China.
Yue GuDepartment III of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University China.
Daoke YangDepartment III of Radiation Oncology, The First Affiliated Hospital of Zhengzhou University China.
Central South University · CNFirst Affiliated Hospital of Zhengzhou University · CNZhengzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPromoter methylation is an alternative mechanism of gene silencing in human tumorigenesis. Although a number of methylated genes have been found in non small cell lung cancer (NSCLC), useful methylation markers for early prognostic evaluation of NSCLC remain largely unknown.

methodsUsing methylation-specific PCR (MSP), we examined promoter methylation status of PAX6 gene, and explored their association with clinical features in NSCLC via chi-square test. NSCLC patient survival was assessed by Kaplan-Meier analyses and a Cox proportional hazard model was employed for multivariate analyses.

resultsThe methylation level of PAX6 gene was higher in tumor tissues than that in normal tissues. In addition, PAX6 promoter methylation showed a very significant correlation with differentiation (P = 0.002), distant metastasis (P = 0.024), and TNM stage (P = 0.002). PAX6 gene promoter hyper-methylation was found to be significantly associated with poor overall survival (P = 0.018) and to serve as an independent marker for prognosis using multivariate Cox regression analysis (HR: 2.254, 95% CI: 1.088-4.667, P = 0.029).

conclusionWe found that PAX6 gene was specifically methylated in NSCLC, and demonstrated the effect of promoter methylation of PAX6 gene on clinical outcome in NSCLC, indicating the methylated PAX6 may be useful biomarkers for prognostic evaluation in NSCLC.

Indexed as

AdultAgedBiomarkers, TumorCarcinoma, Non-Small-Cell LungDisease-Free SurvivalDNA MethylationDown-RegulationFemaleGene Expression Regulation, NeoplasticHumansKaplan-Meier EstimateLung NeoplasmsMaleMiddle AgedPAX6 Transcription FactorPolymerase Chain ReactionBiomarkers, TumorPAX6 protein, humanPAX6 Transcription FactormethylationNon-small cell lung cancerPAX6prognosis

Identifiers

PMID26617874
PMCPMC4637690
OpenAlexW2184128163

What OpenQuestion holds

Textmetadata
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Registered trials

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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.