Evidence map›Paper›PMID 23996928›Full record

ArticleCarcinogenesis2013

Genome-wide methylation analysis shows similar patterns in Barrett's esophagus and esophageal adenocarcinoma.

Enping Xu, Jian Gu, Ernest T Hawk, Kenneth K Wang, Maode Lai, Maosheng Huang, Jaffer Ajani, Xifeng Wu

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Carcinogenesis, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

31 citing papers in PubMed, 62 citations in OpenAlex.

  1. Diagnostic and Prognostic Biomarkers for Barrett's Esophagus.Gastroenterology clinics of North America · 2026
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  17. Role of ion channels in gastrointestinal cancer.World journal of gastroenterology · 2019
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Enping XuDepartment of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
Jian Gu
Ernest T Hawk
Kenneth K Wang
Maode Lai
Maosheng Huang
Jaffer Ajani
Xifeng Wu
The University of Texas MD Anderson Cancer Center · USZhejiang University · CNMayo Clinic in Arizona · US

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
Targeting CDK4 in TGS-B Inactivated Gastrointestinal CancersP01CA130821 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI MISHRA, LOPA · 2008 to 2013
$6.9M
Genetic Instability & Risk for Esophageal CarcinomaR01CA111922 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI WU, XIFENG · 2008 to 2012
$2.9M
Prediction of Pathologic Complete Response by Gene Expression Profiling in EsophaR01CA138671 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI AJANI, JAFFER A. · 2010 to 2014
$1.5M
NCI NIH HHS CA111922NCI NIH HHS CA138671NCI NIH HHS P01 CA130821NCI NIH HHS P30 CA016672
6 · The paper itself

Abstract

Barrett's esophagus (BE) is a precursor of esophageal adenocarcinoma (EAC). To identify novel tumor suppressors involved in esophageal carcinogenesis and potential biomarkers for the malignant progression of BE, we performed a genome-wide methylation profiling of BE and EAC tissues. Using Illumina's Infinium HumanMethylation27 BeadChip microarray, we examined the methylation status of 27 578 CpG sites in 94 normal esophageal (NE), 77 BE and 117 EAC tissue samples. The overall methylation of CpG sites within the CpG islands was higher, but outside of the CpG islands was lower in BE and EAC tissues than in NE tissues. Hierarchical clustering analysis showed an excellent separation of NE tissues from BE and EAC tissues; however, the clustering of BE and EAC tissues was less clear, suggesting that methylation occurs early during the progression of EAC. We confirmed many previously reported hypermethylated genes and identified a large number of novel hypermethylated genes in BE and EAC tissues, particularly genes encoding ADAM (A Disintegrin And Metalloproteinase) peptidase proteins, cadherins and protocadherins, and potassium voltage-gated channels. Pathway analysis showed that a number of channel and transporter activities were enriched for hypermethylated genes. We used pyrosequencing to validate selected candidate genes and found high correlations between the array and pyrosequencing data (rho > 0.8 for each validated gene). The differentially methylated genes and pathways may provide biological insights into the development and progression of BE and become potential biomarkers for the prediction and early detection of EAC.

Indexed as

ADAM ProteinsAdenocarcinomaBarrett EsophagusCadherinsCpG IslandsDisease ProgressionDNA MethylationEsophageal NeoplasmsEsophagusGenome-Wide Association StudyHumansPotassium Channels, Voltage-GatedSignal TransductionADAM ProteinsCadherinsPotassium Channels, Voltage-Gated

Identifiers

PMID23996928
PMCPMC3845893
OpenAlexW2149619593

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.