Evidence map›Paper›PMID 28343299›Full record

SynthesisInternational journal of clinical oncology2017

The role of LINE-1 methylation in predicting survival among colorectal cancer patients: a meta-analysis.

Ding Ye, Danjie Jiang, Yingjun Li, Mingjuan Jin, Kun Chen

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in International journal of clinical oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
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

15 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. The Mechanism of DNA Methylation and miRNA in Breast Cancer.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Differential DNA methylation analysis ofWorld journal of gastroenterology · 2022
    Article
  10. Article
  11. Impact of TumorJournal of personalized medicine · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. 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.

Ding YeDepartment of Epidemiology and Health Statistics, Zhejiang University School of Public Health, 866 Yuhangtang Road, Hangzhou, 310058, China.
Danjie JiangDepartment of Epidemiology and Health Statistics, Zhejiang University School of Public Health, 866 Yuhangtang Road, Hangzhou, 310058, China.
Yingjun LiDepartment of Public Health, Hangzhou Medical School, Hangzhou, China.
Mingjuan JinDepartment of Epidemiology and Health Statistics, Zhejiang University School of Public Health, 866 Yuhangtang Road, Hangzhou, 310058, China.
Kun ChenDepartment of Epidemiology and Health Statistics, Zhejiang University School of Public Health, 866 Yuhangtang Road, Hangzhou, 310058, China. ck@zju.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prognostic value of long interspersed nucleotide element-1 (LINE-1) methylation in patients with colorectal cancer (CRC) remains uncertain. We have therefore performed a meta-analysis to elucidate this issue.

methodsThe PubMed and Web of Science databases were searched for studies published up to 30 June 2016 which reported on an association between LINE-1 methylation and overall survival (OS), disease-free survival (DFS), or cancer-specific survival (CSS) among CRC patients. The reference lists of the identified studies were also analyzed to identify additional eligible studies. Hazard ratios (HRs) with 95% confidence intervals (CIs) were pooled using the fixed-effects or the random-effects model. Stratification analysis and meta-regression analysis were performed to detect the source of heterogeneity. Analyses of sensitivity and publication bias were also carried out.

resultsThirteen independent studies involving 3620 CRC patients were recruited to the meta-analysis. LINE-1 hypomethylation was found to be significantly associated with shorter OS (HR 2.92, 95% CI 2.20-3.88, p < 0.001) and DFS (HR 2.18, 95% CI 1.46-3.27, p < 0.001), as well as unfavorable CSS (HR 1.96, 95% CI 1.35-2.85, p < 0.001). No heterogeneity was found among the studies evaluating the associations between LINE-1 hypomethylation and OS or DFS, with the exception being CSS. Moreover, meta-regression analysis suggested that one of the contributors to between-study heterogeneity on the association between LINE-1 methylation and CSS was statistical methodology. The subgroup analysis suggested that the association in studies using the Cox model statistical method (HR 2.76, 95% CI 1.90-4.01, p < 0.001) was stronger than that in studies using the Log-rank test (HR 1.41, 95% CI 1.07-1.87, p = 0.015).

conclusionsThe results of this meta-analysis suggest that LINE-1 methylation is significantly associated with the survival of CRC patients and that it could be a predictive factor for CRC prognosis.

Indexed as

DNA MethylationLong Interspersed Nucleotide ElementsColorectal NeoplasmsDisease-Free SurvivalHumansPrognosisProportional Hazards ModelsColorectal cancerLINE-1Meta-analysisMethylationSurvival

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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.