Evidence map›Paper›PMID 22770842›Full record

ArticlePain2012

Reactive oxygen species (ROS) modulate AMPA receptor phosphorylation and cell-surface localization in concert with pain-related behavior.

Daniel Z Lee, Jin M Chung, Kyungsoon Chung, Myoung-Goo Kang

Abstract read
In one paragraph

Article in Pain, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

29 citing papers in PubMed, 59 citations in OpenAlex.

  1. Review
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  8. Spinal antinociceptive effect of the PnTx4(5-5) peptide is possibly mediated by the NMDA autoreceptors.The journal of venomous animals and toxins including tropical diseases · 2024
    Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. NADPH Oxidases in Pain Processing.Antioxidants (Basel, Switzerland) · 2022
    Review
  14. Review
  15. The Roles of Superoxide on At-Level Spinal Cord Injury Pain in Rats.International journal of molecular sciences · 2021
    Article
  16. Article
  17. Article
  18. Article
  19. LARGE, an intellectual disability-associated protein, regulates AMPA-type glutamate receptor trafficking and memory.Proceedings of the National Academy of Sciences of the United States of America · 2018
    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

4 authors at 2 institutions in 2 countries.

Daniel Z LeeDepartment of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA.
Jin M Chung
Kyungsoon Chung
Myoung-Goo Kang
The University of Texas Medical Branch at Galveston · USChristie's · GB

Funding

VISCERAL PAINP01NS011255 · NINDS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI NEUGEBAUER, VOLKER · 1985 to 2012
$13.6M
Mechanisms of Neuropathic PainR01NS031680 · NINDS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI CHUNG, JIN M · 1994 to 2016
$4.1M
NINDS NIH HHS P01 NS011255NINDS NIH HHS R01 NS031680
6 · The paper itself

Abstract

Sensitization of dorsal horn neurons (DHNs) in the spinal cord is dependent on pain-related synaptic plasticity and causes persistent pain. The DHN sensitization is mediated by a signal transduction pathway initiated by the activation of N-methyl-d-aspartate receptors (NMDA-Rs). Recent studies have shown that elevated levels of reactive oxygen species (ROS) and phosphorylation-dependent trafficking of GluA2 subunit of α-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptors (AMPA-Rs) are a part of the signaling pathway for DHN sensitization. However, the relationship between ROS and AMPA-R phosphorylation and trafficking is not known. Thus, this study investigated the effects of ROS scavengers on the phosphorylation and cell-surface localization of GluA1 and GluA2. Intrathecal NMDA- and intradermal capsaicin-induced hyperalgesic mice were used for this study since both pain models share the NMDA-R activation-dependent DHN sensitization in the spinal cord. Our behavioral, biochemical, and immunohistochemical analyses demonstrated that: 1) NMDA-R activation in vivo increased the phosphorylation of AMPA-Rs at GluA1 (S818, S831, and S845) and GluA2 (S880) subunits; 2) NMDA-R activation in vivo increased cell-surface localization of GluA1 but decreased that of GluA2; and 3) reduction of ROS levels by ROS scavengers PBN (N-tert-butyl-α-phenylnitrone) or TEMPOL (4-hydroxy-2, 2, 6, 6-tetramethylpiperidin-1-oxyl) reversed these changes in AMPA-Rs, as well as pain-related behavior. Given that AMPA-R trafficking to the cell surface and synapse is regulated by NMDA-R activation-dependent phosphorylation of GluA1 and GluA2, our study suggests that the ROS-dependent changes in the phosphorylation and cell-surface localization of AMPA-Rs are necessary for DHN sensitization and thus, pain-related behavior. We further suggest that ROS reduction will ameliorate these molecular changes and pain.

Indexed as

AnimalsCentral Nervous System SensitizationChronic PainCyclic N-OxidesFree Radical ScavengersMaleMiceMice, Inbred C57BLPhosphorylationPosterior Horn CellsReactive Oxygen SpeciesReceptors, AMPAReceptors, N-Methyl-D-AspartateSignal TransductionSpin LabelsCyclic N-OxidesFree Radical Scavengersglutamate receptor ionotropic, AMPA 2phenyl-N-tert-butylnitroneReactive Oxygen SpeciesReceptors, AMPAReceptors, N-Methyl-D-AspartateSpin Labelstempol

Identifiers

PMID22770842
PMCPMC3413777
OpenAlexW1975140503

What OpenQuestion holds

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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.