Evidence map›Paper›PMID 17967063›Full record

ArticlePLoS genetics2007

Genome-wide profiling of DNA methylation reveals a class of normally methylated CpG island promoters.

Lanlan Shen, Yutaka Kondo, Yi Guo, Jiexin Zhang, Li Zhang, Saira Ahmed, Jingmin Shu, Xinli Chen, Robert A Waterland, Jean-Pierre J Issa

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 186 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
186citing papers in PubMed, 2 pooled it
14.7field-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

186 citing papers in PubMed, 2 syntheses or guidelines pooled it, 396 citations in OpenAlex.

  1. Pooled it
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  15. Epigenetic associations ofFrontiers in psychiatry · 2024
    Article
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  18. Article
  19. Article
  20. Involvement of epigenetics in affecting host immunity during SARS-CoV-2 infection.Biochimica et biophysica acta. Molecular basis of disease · 2023
    Review

126 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 2 countries.

Lanlan ShenDepartment of Leukemia, The University of Texas at M. D. Anderson Cancer Center, Houston, Texas, USA. lshen@mdanderson.org
Yutaka Kondo
Yi Guo
Jiexin Zhang
Li Zhang
Saira Ahmed
Jingmin Shu
Xinli Chen
Robert A Waterland
Jean-Pierre J Issa
The University of Texas MD Anderson Cancer Center · USAichi Cancer Center · JPApplied Biomathematics (United States) · USChildren's Nutrition Research Center at Baylor College of Medicine · US

Funding

University of Texas M.D. Anderson Cancer SPORE-LeukemiaP50CA100632 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI HUANG, XUELIN · 2003 to 2023
$43.7M
DNA Methylation in Colon Cancer MetastasisR01CA098006 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI ISSA, JEAN-PIERRE J. · 2004 to 2008
$1.4M
Diet and DNA methylation in colon mucosa and adenomasR01CA105346 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI ISSA, JEAN-PIERRE J · 2004 to 2007
$1.1M
NCI NIH HHS P50 CA100632NCI NIH HHS R01 CA098006NCI NIH HHS R01 CA 105346NCI NIH HHS R01 CA105346
6 · The paper itself

Abstract

The role of CpG island methylation in normal development and cell differentiation is of keen interest, but remains poorly understood. We performed comprehensive DNA methylation profiling of promoter regions in normal peripheral blood by methylated CpG island amplification in combination with microarrays. This technique allowed us to simultaneously determine the methylation status of 6,177 genes, 92% of which include dense CpG islands. Among these 5,549 autosomal genes with dense CpG island promoters, we have identified 4.0% genes that are nearly completely methylated in normal blood, providing another exception to the general rule that CpG island methylation in normal tissue is limited to X inactivation and imprinted genes. We examined seven genes in detail, including ANKRD30A, FLJ40201, INSL6, SOHLH2, FTMT, C12orf12, and DPPA5. Dense promoter CpG island methylation and gene silencing were found in normal tissues studied except testis and sperm. In both tissues, bisulfite cloning and sequencing identified cells carrying unmethylated alleles. Interestingly, hypomethylation of several genes was associated with gene activation in cancer. Furthermore, reactivation of silenced genes could be induced after treatment with a DNA demethylating agent or in a cell line lacking DNMT1 and/or DNMT3b. Sequence analysis identified five motifs significantly enriched in this class of genes, suggesting that cis-regulatory elements may facilitate preferential methylation at these promoter CpG islands. We have identified a group of non-X-linked bona fide promoter CpG islands that are densely methylated in normal somatic tissues, escape methylation in germline cells, and for which DNA methylation is a primary mechanism of tissue-specific gene silencing.

Indexed as

DNA MethylationGene Expression ProfilingBase SequenceCell Line, TumorCpG IslandsDNA (Cytosine-5-)-MethyltransferasesFemaleGene Expression Regulation, NeoplasticGene SilencingGenes, NeoplasmGenome, HumanHumansHydroxamic AcidsLymphocytesMaleMolecular Sequence DataDNA (Cytosine-5-)-MethyltransferasesHydroxamic Acidstrichostatin A

Identifiers

PMID17967063
PMCPMC2041996
OpenAlexW2116993454

What OpenQuestion holds

Textmetadata
LicenceCC0
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.