Evidence map›Paper›PMID 19259700›Full record

ArticleJournal of cancer research and clinical oncology2009

Methylated DAPK and APC promoter DNA detection in peripheral blood is significantly associated with apparent residual tumor and outcome.

Andreas-Claudius Hoffmann, Daniel Vallböhmer, Klaus Prenzel, Ralf Metzger, Michaela Heitmann, Susanne Neiss, Fredericke Ling, Arnulf H Hölscher, Paul M Schneider, Jan Brabender

Open access · greenAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 5% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  11. Cell-free circulating tumor DNA in plasma/serum of non-small cell lung cancer.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
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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

10 authors at 3 institutions in 2 countries.

Andreas-Claudius HoffmannDepartment of Medicine (Cancer Research), West German Cancer Center, University Hospital Essen, 45122 Essen, Germany. ach@o117.com
Daniel Vallböhmer
Klaus Prenzel
Ralf Metzger
Michaela Heitmann
Susanne Neiss
Fredericke Ling
Arnulf H Hölscher
Paul M Schneider
Jan Brabender
University of Cologne · DEEssen University Hospital · DEUniversity Hospital of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDeath-associated protein kinase (DAPK) and adenomatous polyposis coli gene (APC) have been recently shown to be associated with outcome in patients with esophageal carcinoma, especially adenocarcinoma. We wanted to validate the correlation of these two markers with outcome by detecting methylated DNA sequences in peripheral blood.

methodsCirculating cell-free DNA extracted from blood plasma of 59 patients with esophageal cancer was analyzed before and after surgical resection by quantitative real-time methylation-specific RT-PCR (TaqMan) assays.

resultsThirty-six of 59 patients (61.0%) with esophageal cancer had detectable levels of methylated DAPK or APC promoter DNA and preoperative detection was significantly associated with an unfavorable prognosis as revealed by multivariate Cox proportional hazards regression analysis [Exp(b) = 4.578; P = 0.01]. The combination of both markers significantly increased sensitivity and specificity for discriminating between short (<2.5 years) and long survivors (P = 0.04, ROC curve analysis). Postoperative APC detection was significantly different if residual tumor was apparent (P = 0.03).

conclusionsPreoperative measurement of methylated DAPK and APC promoter DNA in peripheral blood may contribute to better estimate postoperative survival chances of patients with esophageal carcinoma, especially adenocarcinoma. The postoperative detection of methylated APC in peripheral blood might provide crucial information on apparent residual tumor and might be used as a "molecular" R0-Marker in addition to the pathologic examination.

Indexed as

Adenomatous Polyposis ColiApoptosis Regulatory ProteinsBiomarkers, TumorCalcium-Calmodulin-Dependent Protein KinasesDeath-Associated Protein KinasesDNA MethylationDNA, NeoplasmEsophageal NeoplasmsHumansMultivariate AnalysisNeoplasm, ResidualPrognosisPromoter Regions, GeneticReverse Transcriptase Polymerase Chain ReactionROC CurveSensitivity and SpecificityApoptosis Regulatory ProteinsBiomarkers, TumorCalcium-Calmodulin-Dependent Protein KinasesDeath-Associated Protein KinasesDNA, Neoplasm

Identifiers

PMID19259700
PMCPMC12160219
OpenAlexW2052198837

What OpenQuestion holds

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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.