Evidence map›Paper›PMID 28585865›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2017

Protein kinase C epsilon delays latency until anoxic depolarization through arc expression and GluR2 internalization.

Charles H Cohan, Holly M Stradecki-Cohan, Kahlilia C Morris-Blanco, Nathalie Khoury, Kevin B Koronowski, Mehdi Youbi, Clinton B Wright, Miguel A Perez-Pinzon

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

9 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Resveratrol Preconditioning Protects Against Ischemia-Induced Synaptic Dysfunction and Cofilin Hyperactivation in the Mouse Hippocampal Slice.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. 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

8 authors at 1 institution in 1 country.

Charles H Cohan1 Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
Holly M Stradecki-Cohan1 Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
Kahlilia C Morris-Blanco1 Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
Nathalie Khoury1 Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
Kevin B Koronowski1 Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
Mehdi Youbi1 Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
Clinton B Wright2 Evelyn F. McKnight Brain Institute, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
Miguel A Perez-Pinzon1 Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
University of Miami · US

Funding

ISCHEMIC PRECONDITIONING: MECHANISMS OF NEUROPROTECTIONR01NS034773 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI MIGUEL A PEREZ-PINZON · 2003 to 2026
$6.7M
NINDS NIH HHS R01 NS034773
6 · The paper itself

Abstract

Global cerebral ischemia is a debilitating injury that damages the CA1 region of the hippocampus, an area important for learning and memory. Protein kinase C epsilon (PKCɛ) activation is a critical component of many neuroprotective treatments. The ability of PKCɛ activation to regulate AMPA receptors (AMPARs) remains unexplored despite the role of AMPARs in excitotoxicity after brain ischemia. We determined that PKCɛ activation increased expression of a protein linked to learning and memory, activity-regulated cytoskeleton-associated protein (arc). Also, arc is necessary for neuroprotection and confers protection through decreasing AMPAR currents via GluR2 internalization. In vivo, activation of PKCɛ increased arc expression through a BDNF/TrkB pathway, and decreased GluR2 mRNA levels. In hippocampal cultured slices, PKCɛ activation decreased AMPAR current amplitudes in an arc- and GluR2-dependent manner. Additionally, PKCɛ activation triggered an arc- and GluR2 internalization-dependent delay in latency until anoxic depolarization. Inhibiting arc also blocked PKCɛ-mediated neuroprotection against lethal oxygen and glucose deprivation. These data characterize a novel PKCɛ-dependent mechanism that for the first time defines a role for arc and AMPAR internalization in conferring neuroprotection.

Indexed as

NeuroprotectionAnimalsBrain-Derived Neurotrophic FactorBrain IschemiaCells, CulturedCytoskeletal ProteinsGene ExpressionHippocampusHypoxiaMaleNerve Tissue ProteinsNeuronsOxygenProtein Kinase C-epsilonRats, Sprague-DawleyReceptors, AMPAactivity regulated cytoskeletal-associated proteinBrain-Derived Neurotrophic FactorCytoskeletal Proteinsglutamate receptor ionotropic, AMPA 2Nerve Tissue ProteinsNtrk2 protein, ratOxygenProtein Kinase C-epsilonReceptors, AMPAReceptor, trkBRNA, MessengerBrain ischemiadendritesglutamatehippocampusischemic preconditioning and induced tolerancesynapses

Identifiers

PMID28585865
PMCPMC5718329
OpenAlexW2623336240

What OpenQuestion holds

Textmetadata
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.