Evidence map›Paper›PMID 22899282›Full record

ArticleGenome research2012

A heterozygous IDH1R132H/WT mutation induces genome-wide alterations in DNA methylation.

Christopher G Duncan, Benjamin G Barwick, Genglin Jin, Carlo Rago, Priya Kapoor-Vazirani, Doris R Powell, Jen-Tsan Chi, Darell D Bigner, Paula M Vertino, Hai Yan

Open access · bronzeAbstract read
In one paragraph

Article in Genome research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 121 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
121citing papers in PubMed, 1 pooled it
–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

121 citing papers in PubMed, 1 synthesis or guideline pooled it, 180 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Recent Advances in Targeted Therapies for Adult Gliomas.Current neurology and neuroscience reports · 2026
    Review
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  8. Article
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  14. RapidBiology methods & protocols · 2024
    Article
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  16. Article
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  18. Review
  19. Article
  20. Article

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

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 4 institutions in 1 country.

Christopher G DuncanThe Preston Robert Tisch Brain Tumor Center, The Pediatric Brain Tumor Foundation Institute, The Department of Pathology, Duke University Medical Center, Durham, North Carolina 27710, USA.
Benjamin G Barwick
Genglin Jin
Carlo Rago
Priya Kapoor-Vazirani
Doris R Powell
Jen-Tsan Chi
Darell D Bigner
Paula M Vertino
Hai Yan
Duke University · USEmory University · USHoward Hughes Medical Institute · USPediatric Brain Tumor Foundation · US

Funding

TUMOR SUPPRESSOR GENES IN HUMAN MEDULLOBLASTOMAP50NS020023 · NINDS · DUKE UNIVERSITY · PI BIGNER, DARELL D · 1985 to 2013
$17.3M
TEMODAR RESISTANCE IN CENTRAL NERVOUS SYSTEMP50CA108786 · NCI · DUKE UNIVERSITY · PI BIGNER, DARELL D · 2004 to 2009
$12.3M
BRAIN TUMORS: IMMUNOLOGICAL AND BIOLOGICAL STUDIESR37CA011898 · NCI · DUKE UNIVERSITY · PI BIGNER, DARELL D · 1988 to 2012
$8.1M
PREDOCTORAL TRAINING PROGRAM IN GENETICST32GM008490 · NIGMS · EMORY UNIVERSITY · PI BOSS, JEREMY M. · 1993 to 2022
$8.0M
GENESIS AND CONSEQUENCES OF ABERRANT DNA METHYLATIONR01CA077337 · NCI · EMORY UNIVERSITY · PI VERTINO, PAULA M. · 1998 to 2016
$3.4M
Gene expression programs of lactic acidosis in human cancersR01CA125618 · NCI · DUKE UNIVERSITY · PI CHI, JEN-TSAN ASHLEY · 2007 to 2016
$3.3M
The Role of IDH1 Mutations in Gliomagenesis and MetabolismR01CA140316 · NCI · DUKE UNIVERSITY · PI YAN, HAI · 2010 to 2019
$3.2M
Defining Genomic Signatures for Aberrant DNA Methylation in Human CancersR01CA132065 · NCI · EMORY UNIVERSITY · PI VERTINO, PAULA M. · 2009 to 2013
$1.5M
NCI NIH HHS 2R01-CA077337NCI NIH HHS 5R01-CA132065NCI NIH HHS 5R01-CA140316NCI NIH HHS P50 CA108786NCI NIH HHS R01 CA077337NCI NIH HHS R01 CA125618NCI NIH HHS R01 CA132065NCI NIH HHS R01 CA140316NCI NIH HHS R37 CA011898NIGMS NIH HHS T32 GM008490NINDS NIH HHS P50 NS020023
6 · The paper itself

Abstract

Monoallelic point mutations of the NADP(+)-dependent isocitrate dehydrogenases IDH1 and IDH2 occur frequently in gliomas, acute myeloid leukemias, and chondromas, and display robust association with specific DNA hypermethylation signatures. Here we show that heterozygous expression of the IDH1(R132H) allele is sufficient to induce the genome-wide alterations in DNA methylation characteristic of these tumors. Using a gene-targeting approach, we knocked-in a single copy of the most frequently observed IDH1 mutation, R132H, into a human cancer cell line and profiled changes in DNA methylation at over 27,000 CpG dinucleotides relative to wild-type parental cells. We find that IDH1(R132H/WT) mutation induces widespread alterations in DNA methylation, including hypermethylation of 2010 and hypomethylation of 842 CpG loci. We demonstrate that many of these alterations are consistent with those observed in IDH1-mutant and G-CIMP+ primary gliomas and can segregate IDH wild-type and mutated tumors as well as those exhibiting the G-CIMP phenotype in unsupervised analysis of two primary glioma cohorts. Further, we show that the direction of IDH1(R132H/WT)-mediated DNA methylation change is largely dependent upon preexisting DNA methylation levels, resulting in depletion of moderately methylated loci. Additionally, whereas the levels of multiple histone H3 and H4 methylation modifications were globally increased, consistent with broad inhibition of histone demethylation, hypermethylation at H3K9 in particular accompanied locus-specific DNA hypermethylation at several genes down-regulated in IDH1(R132H/WT) knock-in cells. These data provide insight on epigenetic alterations induced by IDH1 mutations and support a causal role for IDH1(R132H/WT) mutants in driving epigenetic instability in human cancer cells.

Indexed as

DNA MethylationHeterozygoteMutationAllelesBlotting, WesternChromatin ImmunoprecipitationDown-RegulationEpigenomicsGene Expression ProfilingGene Expression RegulationGene SilencingGenetic LociHCT116 CellsHistonesHumansIsocitrate DehydrogenaseHistonesIDH1 protein, humanIsocitrate Dehydrogenase

Identifiers

PMID22899282
PMCPMC3514664
OpenAlexW2058947771

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

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.