Evidence map›Paper›PMID 25909891›Full record

ArticleCell death and differentiation2015

Astrocyte NMDA receptors' activity sustains neuronal survival through a Cdk5-Nrf2 pathway.

D Jimenez-Blasco, P Santofimia-Castaño, A Gonzalez, A Almeida, J P Bolaños

Open access · bronzeAbstract read
In one paragraph

Article in Cell death and differentiation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 104 papers.

0numbers the graph read from it
0cells of the map it votes in
104citing papers in PubMed
4.4field-weighted citation impact, top 4% 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

104 citing papers in PubMed, 186 citations in OpenAlex.

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  13. Astrocyte-to-neuron HNature metabolism · 2025
    Article
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44 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

5 authors at 2 institutions in 1 country.

D Jimenez-BlascoInstitute of Functional Biology and Genomics (IBFG), University of Salamanca-CSIC, 37007 Salamanca, Spain.
P Santofimia-CastañoDepartment of Physiology, Faculty of Veterinary, University of Extremadura, 10003 Caceres, Spain.
A GonzalezDepartment of Physiology, Faculty of Veterinary, University of Extremadura, 10003 Caceres, Spain.
A AlmeidaInstitute of Functional Biology and Genomics (IBFG), University of Salamanca-CSIC, 37007 Salamanca, Spain.
J P BolañosInstitute of Functional Biology and Genomics (IBFG), University of Salamanca-CSIC, 37007 Salamanca, Spain.
Instituto de Investigación Biomédica de Salamanca · ESUniversidad de Extremadura · ES

Funding

INFLUENCE OF CANNABINOIDS ON ASTROCYTE-NEURONAL METABOLIC INTERACTIONSR21DA037678 · NIDA · UNIVERSITY OF SALAMANCA · PI BOLANOS, JUAN PEDRO · 2014 to 2015
$195k
NIDA NIH HHS 1R21DA037678-01NIDA NIH HHS R21 DA037678
6 · The paper itself

Abstract

Neurotransmission unavoidably increases mitochondrial reactive oxygen species. However, the intrinsic antioxidant defense of neurons is weak and hence the mechanism whereby these cells are physiologically protected against oxidative damage is unknown. Here we found that the antioxidant defense of neurons is repressed owing to the continuous protein destabilization of the master antioxidant transcriptional activator, nuclear factor-erythroid 2-related factor-2 (Nrf2). By contrast, Nrf2 is highly stable in neighbor astrocytes explaining their robust antioxidant defense and resistance against oxidative stress. We also show that subtle and persistent stimulation of N-methyl-d-aspartate receptors (NMDAR) in astrocytes, through a mechanism not requiring extracellular Ca²⁺ influx, upregulates a signal transduction pathway involving phospholipase C-mediated endoplasmic reticulum release of Ca²⁺ and protein kinase Cδ activation. Active protein kinase Cδ promotes, by phosphorylation, the stabilization of p35, a cyclin-dependent kinase-5 (Cdk5) cofactor. Active p35/Cdk5 complex in the cytosol phosphorylates Nrf2 at Thr(395), Ser(433) and Thr(439) that is sufficient to promote Nrf2 translocation to the nucleus and induce the expression of antioxidant genes. Furthermore, this Cdk5-Nrf2 transduction pathway boosts glutathione metabolism in astrocytes efficiently protecting closely spaced neurons against oxidative damage. Thus, intercellular communication through NMDAR couples neurotransmission with neuronal survival.

Indexed as

AnimalsAstrocytesBlotting, WesternCells, CulturedCell SurvivalCyclin-Dependent Kinase 5Flow CytometryHEK293 CellsHumansHydrogen PeroxideImmunoprecipitationLipidsMembrane Potential, MitochondrialNeuronsNF-E2-Related Factor 2RatsCyclin-Dependent Kinase 5Hydrogen PeroxideLipidsLipofectamineNF-E2-Related Factor 2Receptors, N-Methyl-D-Aspartate

Identifiers

PMID25909891
PMCPMC4648333
OpenAlexW2111623179

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.