Evidence map›Paper›PMID 21483804›Full record

ArticlePLoS genetics2011

Widespread hypomethylation occurs early and synergizes with gene amplification during esophageal carcinogenesis.

Hector Alvarez, Joanna Opalinska, Li Zhou, Davendra Sohal, Melissa J Fazzari, Yiting Yu, Christina Montagna, Elizabeth A Montgomery, Marcia Canto, Kerry B Dunbar and 15 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2011. 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 82 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 1 pooled it
13.6field-weighted citation impact, top 1% 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

82 citing papers in PubMed, 1 synthesis or guideline pooled it, 144 citations in OpenAlex.

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  20. International journal of molecular sciences · 2022
    Review

22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
    Meltzer, Stephen [corrected to Meltzer, Stephen J]
5 · Who and what money

Authors and funding

25 authors at 6 institutions in 3 countries.

Hector AlvarezDepartment of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America.
Joanna Opalinska
Li Zhou
Davendra Sohal
Melissa J Fazzari
Yiting Yu
Christina Montagna
Elizabeth A Montgomery
Marcia Canto
Kerry B Dunbar
Jean Wang
Juan Carlos Roa
Yongkai Mo
Tushar Bhagat
K H Ramesh
Linda Cannizzaro
J Mollenhauer
Reid F Thompson
Masako Suzuki
Stephen J Meltzer
Stephen Meltzer
Ari Melnick
John M Greally
Anirban Maitra
Amit Verma
Albert Einstein College of Medicine · USJohns Hopkins University · USJohns Hopkins Medicine · USCornell University · USUniversidad de La Frontera · CLUniversity of Southern Denmark · DK

Funding

IMMUNOLOGY AND IMMUNUNOOCOLOGY TRAINING PROGRAMT32CA009173 · NCI · YESHIVA UNIVERSITY · PI NATHENSON, STANLEY G · 1985 to 2009
$5.8M
The temporal epigenomic program of Barrett's neoplastic progressionR01DK087454 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI MELTZER, STEPHEN J · 2009 to 2013
$1.8M
p38 MAPK--Therapeutic target in Myelodysplastic syndromeR01HL082946 · NHLBI · ALBERT EINSTEIN COL OF MED YESHIVA UNIV · PI VERMA, AMIT K. · 2005 to 2009
$1.7M
NCI NIH HHS T32 CA009173NHLBI NIH HHS R01 HL082946NHLBI NIH HHS R01HL082946NIDDK NIH HHS R01 DK087454
6 · The paper itself

Abstract

Although a combination of genomic and epigenetic alterations are implicated in the multistep transformation of normal squamous esophageal epithelium to Barrett esophagus, dysplasia, and adenocarcinoma, the combinatorial effect of these changes is unknown. By integrating genome-wide DNA methylation, copy number, and transcriptomic datasets obtained from endoscopic biopsies of neoplastic progression within the same individual, we are uniquely able to define the molecular events associated progression of Barrett esophagus. We find that the previously reported global hypomethylation phenomenon in cancer has its origins at the earliest stages of epithelial carcinogenesis. Promoter hypomethylation synergizes with gene amplification and leads to significant upregulation of a chr4q21 chemokine cluster and other transcripts during Barrett neoplasia. In contrast, gene-specific hypermethylation is observed at a restricted number of loci and, in combination with hemi-allelic deletions, leads to downregulatation of selected transcripts during multistep progression. We also observe that epigenetic regulation during epithelial carcinogenesis is not restricted to traditionally defined "CpG islands," but may also occur through a mechanism of differential methylation outside of these regions. Finally, validation of novel upregulated targets (CXCL1 and 3, GATA6, and DMBT1) in a larger independent panel of samples confirms the utility of integrative analysis in cancer biomarker discovery.

Indexed as

DNA MethylationGene AmplificationBarrett EsophagusBiomarkers, TumorCalcium-Binding ProteinsCell Line, TumorCell Transformation, NeoplasticChemokine CXCL1ChemokinesChemokines, CXCDNA-Binding ProteinsEsophageal NeoplasmsGATA6 Transcription FactorGene Expression ProfilingHumansNeoplasm StagingBiomarkers, TumorCalcium-Binding ProteinsChemokine CXCL1ChemokinesChemokines, CXCCXCL1 protein, humanCXCL3 protein, humanDMBT1 protein, humanDNA-Binding ProteinsGATA6 protein, humanGATA6 Transcription FactorReceptors, Cell SurfaceTumor Suppressor Proteins

Identifiers

PMID21483804
PMCPMC3069107
OpenAlexW1987561568

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.