Evidence map›Paper›PMID 27239264›Full record

ArticleSkeletal muscle2016

The lysine methyltransferase Ehmt2/G9a is dispensable for skeletal muscle development and regeneration.

Regan-Heng Zhang, Robert N Judson, David Y Liu, Jürgen Kast, Fabio M V Rossi

Open access · goldAbstract read
In one paragraph

Article in Skeletal muscle, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

22 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. RNAi Knockdown ofGenes · 2024
    Article
  7. Epigenetic control of skeletal muscle atrophy.Cellular & molecular biology letters · 2024
    Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Hairless regulates heterochromatin maintenance and muscle stem cell function as a histone demethylase antagonist.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Article
  14. Review
  15. Inactivation of the Euchromatic Histone-LysineFrontiers in cell and developmental biology · 2021
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Temporal regulation of chromatin during myoblast differentiation.Seminars in cell & developmental biology · 2017
    Review
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

5 authors at 1 institution in 1 country.

Regan-Heng ZhangThe Biomedical Research Centre, The University of British Columbia, Vancouver, Canada.
Robert N JudsonThe Biomedical Research Centre, The University of British Columbia, Vancouver, Canada.
David Y LiuThe Biomedical Research Centre, The University of British Columbia, Vancouver, Canada.
Jürgen KastThe Biomedical Research Centre, The University of British Columbia, Vancouver, Canada.
Fabio M V RossiThe Biomedical Research Centre, The University of British Columbia, Vancouver, Canada.
University of British Columbia · CA

Funding

Canadian Institutes of Health Research MOP-97856
6 · The paper itself

Abstract

backgroundEuchromatic histone-lysine N-methyltransferase 2 (G9a/Ehmt2) is the main enzyme responsible for the apposition of H3K9 di-methylation on histones. Due to its dual role as an epigenetic regulator and in the regulation of non-histone proteins through direct methylation, G9a has been implicated in a number of biological processes relevant to cell fate control. Recent reports employing in vitro cell lines indicate that Ehmt2 methylates MyoD to repress its transcriptional activity and therefore its ability to induce differentiation of activated myogenic cells.

methodsTo further investigate the importance of G9a in modulating myogenic regeneration in vivo, we crossed Ehmt2 (floxed) mice to animals expressing Cre recombinase from the Myod locus, resulting in efficient knockout in the entire skeletal muscle lineage (Ehmt2 (ΔmyoD) ).

resultsSurprisingly, despite a dramatic drop in the global levels of H3K9me2, knockout animals did not show any developmental phenotype in muscle size and appearance. Consistent with this finding, purified Ehmt2 (ΔmyoD) satellite cells had rates of activation and proliferation similar to wild-type controls. When induced to differentiate in vitro, Ehmt2 knockout cells differentiated with kinetics similar to those of control cells and demonstrated normal capacity to form myotubes. After acute muscle injury, knockout mice regenerated as efficiently as wildtype. To exclude possible compensatory mechanisms elicited by the loss of G9a during development, we restricted the knockout within adult satellite cells by crossing Ehmt2 (floxed) mice to Pax7 (CreERT2) and also found normal muscle regeneration capacity.

conclusionsThus, Ehmt2 and H3K9me2 do not play significant roles in skeletal muscle development and regeneration in vivo.

Indexed as

Muscle DevelopmentRegenerationAnimalsCell DifferentiationCell ProliferationCells, CulturedDisease Models, AnimalElapid VenomsGene Expression Regulation, DevelopmentalGenotypeHistone-Lysine N-MethyltransferaseHistonesKineticsMethylationMice, Inbred C57BLMice, KnockoutElapid VenomsG9a protein, mouseHistone-Lysine N-MethyltransferaseHistonesnotexinDevelopmentEhmt1Ehmt2Euchromatic methyltransferaseG9aGLPMyodMyogenesisRegenerationSkeletal muscle

Identifiers

PMID27239264
PMCPMC4882833
OpenAlexW2401055056

What OpenQuestion holds

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LicenceCC BY
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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.