Evidence map›Paper›PMID 26551542›Full record

ArticleNature neuroscience2015

G9a is essential for epigenetic silencing of K(+) channel genes in acute-to-chronic pain transition.

Geoffroy Laumet, Judit Garriga, Shao-Rui Chen, Yuhao Zhang, De-Pei Li, Trevor M Smith, Yingchun Dong, Jaroslav Jelinek, Matteo Cesaroni, Jean-Pierre Issa and 1 more

Abstract read
In one paragraph

Article in Nature neuroscience, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 125 papers.

0numbers the graph read from it
0cells of the map it votes in
125citing papers in PubMed
10.2field-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

125 citing papers in PubMed, 193 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
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  6. Review
  7. Histone Lactylation Contributes to Neuropathic Pain by Facilitating mThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  8. Review
  9. Review
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  11. Article
  12. Article
  13. Article
  14. The Role of Methylation Modification in Neural Injury and Repair.International journal of molecular sciences · 2025
    Review
  15. Review
  16. Article
  17. Histone Methyltransferase G9a in Primary Sensory Neurons Promotes Inflammatory Pain and Transcription ofThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  18. Article
  19. Article
  20. Article

65 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

11 authors at 3 institutions in 2 countries.

Geoffroy LaumetCenter for Neuroscience and Pain Research, Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Judit GarrigaFels Institute for Cancer Research and Molecular Biology, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA.
Shao-Rui ChenCenter for Neuroscience and Pain Research, Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Yuhao ZhangCenter for Neuroscience and Pain Research, Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
De-Pei LiCenter for Neuroscience and Pain Research, Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Trevor M SmithCenter for Neuroscience and Pain Research, Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Yingchun DongCenter for Neuroscience and Pain Research, Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Jaroslav JelinekFels Institute for Cancer Research and Molecular Biology, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA.
Matteo CesaroniFels Institute for Cancer Research and Molecular Biology, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA.
Jean-Pierre IssaFels Institute for Cancer Research and Molecular Biology, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA.
Hui-Lin PanCenter for Neuroscience and Pain Research, Department of Anesthesiology and Perioperative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
The University of Texas MD Anderson Cancer Center · USTemple University · USNanjing Medical University · CN

Funding

Epigenetic Mechanisms of Neuropathic PainR01DE022015 · NIDCR · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI ISSA, JEAN-PIERRE J., PAN, HUI-LIN · 2011 to 2015
$3.5M
NIDCR NIH HHS R01 DE022015
6 · The paper itself

Abstract

Neuropathic pain is a debilitating clinical problem and difficult to treat. Nerve injury causes a long-lasting reduction in K(+) channel expression in the dorsal root ganglion (DRG), but little is known about the epigenetic mechanisms involved. We found that nerve injury increased dimethylation of Lys9 on histone H3 (H3K9me2) at Kcna4, Kcnd2, Kcnq2 and Kcnma1 promoters but did not affect levels of DNA methylation on these genes in DRGs. Nerve injury increased activity of euchromatic histone-lysine N-methyltransferase-2 (G9a), histone deacetylases and enhancer of zeste homolog-2 (EZH2), but only G9a inhibition consistently restored K(+) channel expression. Selective knockout of the gene encoding G9a in DRG neurons completely blocked K(+) channel silencing and chronic pain development after nerve injury. Remarkably, RNA sequencing analysis revealed that G9a inhibition not only reactivated 40 of 42 silenced genes associated with K(+) channels but also normalized 638 genes down- or upregulated by nerve injury. Thus G9a has a dominant function in transcriptional repression of K(+) channels and in acute-to-chronic pain transition after nerve injury.

Indexed as

Acute PainAnimalsChronic PainDisease ProgressionEpigenesis, GeneticFemaleGene SilencingHistone-Lysine N-MethyltransferaseMaleMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicPotassium ChannelsRatsRats, Sprague-DawleyG9a protein, mouseHistone-Lysine N-MethyltransferasePotassium Channels

Identifiers

PMID26551542
PMCPMC4661086
OpenAlexW2194931157

What OpenQuestion holds

Textmetadata
LicenceTDM
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.