Evidence map›Paper›PMID 21427709›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2011

Perturbing PSD-95 interactions with NR2B-subtype receptors attenuates spinal nociceptive plasticity and neuropathic pain.

Richard D'Mello, Fabien Marchand, Sophie Pezet, Stephen B McMahon, Anthony H Dickenson

Open access · hybridAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 93 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Life extension factor klotho regulates behavioral responses to stress via modulation of GluN2B function in the nucleus accumbens.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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 3 institutions in 2 countries.

Richard D'MelloDepartment of Neuroscience, Physiology and Pharmacology, University College London, London, UK. richard.dmello@hotmail.co.uk
Fabien Marchand
Sophie Pezet
Stephen B McMahon
Anthony H Dickenson
King's College London · GBCentre National de la Recherche Scientifique · FRUniversity College London · GB

Funding

British Heart Foundation 19444Wellcome Trust
6 · The paper itself

Abstract

Peripheral inflammation or nerve injury induces a primary afferent barrage into the spinal cord, which can cause N-methyl D-aspartate (NMDA) receptor-dependent alterations in the responses of dorsal horn sensory neurons to subsequent afferent inputs. This plasticity, such as "wind-up" and central sensitization, contributes to the hyperexcitability of dorsal horn neurons and increased pain-related behavior in animal models, as well as clinical signs of chronic pain in humans, hyperalgesia and allodynia. Binding of NMDA receptor subunits by the scaffolding protein postsynaptic density protein-95 (PSD-95) can facilitate downstream intracellular signaling and modulate receptor stability, contributing to synaptic plasticity. Here, we show that spinal delivery of the mimetic peptide Tat-NR2B9c disrupts the interaction between PSD-95 and NR2B subunits in the dorsal horn and selectively reduces NMDA receptor-dependent events including wind-up of spinal sensory neurons, and both persistent formalin-induced neuronal activity and pain-related behaviors, attributed to central sensitization. Furthermore, a single intrathecal injection of Tat-NR2B9c in rats with established nerve injury-induced pain attenuates behavioral signs of mechanical and cold hypersensitivity, with no effect on locomotor performance. Thus, uncoupling of PSD-95 from spinal NR2B-containing NMDA receptors may prevent the neuronal plasticity involved in chronic pain and may be a successful analgesic therapy, reducing side effects associated with receptor blockade.

Indexed as

Neuronal PlasticityNociceptionAnimalsDisks Large Homolog 4 ProteinIntracellular Signaling Peptides and ProteinsMembrane ProteinsNeuralgiaRatsReceptors, N-Methyl-D-AspartateSpinal CordDisks Large Homolog 4 ProteinDlg4 protein, ratIntracellular Signaling Peptides and ProteinsMembrane ProteinsNR2B NMDA receptorReceptors, N-Methyl-D-Aspartate

Identifiers

PMID21427709
PMCPMC3188755
OpenAlexW1968448423

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.