Evidence map›Paper›PMID 20524968›Full record

ArticleJournal of neurochemistry2010

NR2B-NMDA receptor-mediated increases in intracellular Ca2+ concentration regulate the tyrosine phosphatase, STEP, and ERK MAP kinase signaling.

Surojit Paul, John A Connor

Open access · greenAbstract read
In one paragraph

Article in Journal of neurochemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

50 citing papers in PubMed, 86 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. NMDA Receptor and Its Emerging Role in Cancer.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. GluN2A-NMDA receptor-mediated sustained CaThe Journal of biological chemistry · 2019
    Article
  16. Proteolytic Degradation of Hippocampal STEPMolecular neurobiology · 2019
    Article
  17. Review
  18. Article
  19. Article
  20. HOncotarget · 2017
    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

2 authors at 1 institution in 1 country.

Surojit PaulDepartment of Neurology, University of New Mexico Health Sciences Center, University of New Mexico, Albuquerque, New Mexico 87131, USA. spaul@salud.unm.edu
John A Connor
University of New Mexico · US

Funding

ROLE OF STEP, A STRIATAL ENRICHED TYROSINE PHOSPHATASE, IN NEURONAL CELL DEATHP20RR015636 · NCRR · UNIVERSITY OF NEW MEXICO · PI LIU, KE JIAN · 2001 to 2010
$21.2M
Role of Brain Specific Tyrosne Phosphatase STEP in Neuroprotection and DeathR01NS059962 · NINDS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI PAUL, SUROJIT · 2008 to 2023
$5.9M
NCRR NIH HHS P20 RR015636NINDS NIH HHS NS059962NINDS NIH HHS R01 NS059962
6 · The paper itself

Abstract

NMDA receptors regulate both the activation and inactivation of the extracellular signal-regulated kinase (ERK) signaling cascade, a key pathway involved in neuronal plasticity and survival. This bi-directional regulation of ERK activity by NMDA receptors has been attributed to opposing actions of NR2A- versus NR2B-containing NMDA receptors, but how this is implemented is not understood. Here, we show that glutamate-mediated intracellular Ca(2+) increases occur in two phases, a rapid initial increase followed by a delayed larger increase. Both phases of the Ca(2+) increase were blocked by MK-801, a non-selective NMDA receptor inhibitor. On the other hand, selective inhibition of NR2B-NMDA receptors by Ifenprodil or Ro 25-6981 blocked the delayed larger phase but had only a small effect on the rapid initial increase. The rapid initial increase in Ca(2+), presumably because of NR2A-NMDAR activation, was sufficient to activate ERK, whereas the large delayed increases in Ca(2+) mediated by NR2B-NMDARs were necessary for dephosphorylation and subsequent activation of striatal-enriched phosphatase, a neuron-specific tyrosine phosphatase that in turn mediates the dephosphorylation and inactivation of ERK. We conclude that the magnitude of Ca(2+) increases mediated through NR2B-NMDA receptors plays a critical role in the regulation of the serine/threonine and tyrosine kinases and phosphatases that are involved in the regulation of ERK activity.

Indexed as

AnimalsBrainCalciumCalcium SignalingCells, CulturedFemaleIntracellular FluidMAP Kinase Signaling SystemMitogen-Activated Protein Kinase 3NeuronsProtein Tyrosine Phosphatases, Non-ReceptorRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateCalciumMitogen-Activated Protein Kinase 3NR2B NMDA receptorProtein Tyrosine Phosphatases, Non-ReceptorPtpn5 protein, ratReceptors, N-Methyl-D-Aspartate

Identifiers

PMID20524968
PMCPMC3049732
OpenAlexW1606634291

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.