Evidence map›Paper›PMID 22902559›Full record

ArticleMolecular cell2012

Protection against de novo methylation is instrumental in maintaining parent-of-origin methylation inherited from the gametes.

Charlotte Proudhon, Rachel Duffié, Sophie Ajjan, Michael Cowley, Julian Iranzo, Guillermo Carbajosa, Heba Saadeh, Michelle L Holland, Rebecca J Oakey, Vardhman K Rakyan and 2 more

Abstract read
In one paragraph

Article in Molecular cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing 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

91 citing papers in PubMed, 1 synthesis or guideline pooled it.

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31 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

12 authors.

Charlotte ProudhonINSERM U934/CNRS UMR3215, Institut Curie, 75248 Paris Cedex 05, France.
Rachel Duffié
Sophie Ajjan
Michael Cowley
Julian Iranzo
Guillermo Carbajosa
Heba Saadeh
Michelle L Holland
Rebecca J Oakey
Vardhman K Rakyan
Reiner Schulz
Déborah Bourc'his

Funding

Biotechnology and Biological Sciences Research Council BB/G00711X/1Wellcome TrustWellcome Trust 085448/Z/08/Z
6 · The paper itself

Abstract

Identifying loci with parental differences in DNA methylation is key to unraveling parent-of-origin phenotypes. By conducting a MeDIP-Seq screen in maternal-methylation free postimplantation mouse embryos (Dnmt3L-/+), we demonstrate that maternal-specific methylation exists very scarcely at midgestation. We reveal two forms of oocyte-specific methylation inheritance: limited to preimplantation, or with longer duration, i.e. maternally imprinted loci. Transient and imprinted maternal germline DMRs (gDMRs) are indistinguishable in gametes and preimplantation embryos, however, de novo methylation of paternal alleles at implantation delineates their fates and acts as a major leveling factor of parent-inherited differences. We characterize two new imprinted gDMRs, at the Cdh15 and AK008011 loci, with tissue-specific imprinting loss, again by paternal methylation gain. Protection against demethylation after fertilization has been emphasized as instrumental in maintaining parent-of-origin methylation inherited from the gametes. Here we provide evidence that protection against de novo methylation acts as an equal major pivot, at implantation and throughout life.

Indexed as

DNA MethylationGenomic ImprintingAnimalsBlastocystCadherinsEmbryo, MammalianFertilizationGenetic TestingGerm CellsMiceOocytesPseudogenesSequence Analysis, DNACadherinsM-cadherin

Identifiers

PMID22902559
PMCPMC3778900

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.