Evidence map›Paper›PMID 20032460›Full record

ArticleThe Journal of biological chemistry2010

Inhibition of calcineurin-mediated endocytosis and alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors prevents amyloid beta oligomer-induced synaptic disruption.

Wei-Qin Zhao, Francesca Santini, Robert Breese, Dave Ross, Xiaohua Douglas Zhang, David J Stone, Marc Ferrer, Matthew Townsend, Abigail L Wolfe, Matthew A Seager and 3 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers.

0numbers the graph read from it
0cells of the map it votes in
107citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

107 citing papers in PubMed, 183 citations in OpenAlex.

  1. Review
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  6. Amyloid-β Causes NMDA Receptor Dysfunction and Dendritic Spine Loss through mGluR1 and AKAP150-Anchored Calcineurin Signaling.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
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  11. Impairments in endogenous AMPA receptor dynamics correlates with learning deficits in Alzheimer's disease model mice.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
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  16. Review
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  19. Significance of GABAInternational journal of molecular sciences · 2021
    Review
  20. Article

47 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

13 authors at 2 institutions in 1 country.

Wei-Qin ZhaoDepartment of Neurology, Merck Research Laboratories, West Point, Pennsylvania 19486, USA. wei-qin_zhao@merck.com
Francesca Santini
Robert Breese
Dave Ross
Xiaohua Douglas Zhang
David J Stone
Marc Ferrer
Matthew Townsend
Abigail L Wolfe
Matthew A Seager
Gene G Kinney
Paul J Shughrue
William J Ray
United States Military Academy · USMerck & Co., Inc., Rahway, NJ, USA (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Synaptic degeneration, including impairment of synaptic plasticity and loss of synapses, is an important feature of Alzheimer disease pathogenesis. Increasing evidence suggests that these degenerative synaptic changes are associated with an accumulation of soluble oligomeric assemblies of amyloid beta (Abeta) known as ADDLs. In primary hippocampal cultures ADDLs bind to a subpopulation of neurons. However the molecular basis of this cell type-selective interaction is not understood. Here, using siRNA screening technology, we identified alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor subunits and calcineurin as candidate genes potentially involved in ADDL-neuron interactions. Immunocolocalization experiments confirmed that ADDL binding occurs in dendritic spines that express surface AMPA receptors, particularly the calcium-impermeable type II AMPA receptor subunit (GluR2). Pharmacological removal of the surface AMPA receptors or inhibition of AMPA receptors with antagonists reduces ADDL binding. Furthermore, using co-immunoprecipitation and photoreactive amino acid cross-linking, we found that ADDLs interact preferentially with GluR2-containing complexes. We demonstrate that calcineurin mediates an endocytotic process that is responsible for the rapid internalization of bound ADDLs along with surface AMPA receptor subunits, which then both colocalize with cpg2, a molecule localized specifically at the postsynaptic endocytic zone of excitatory synapses that plays an important role in activity-dependent glutamate receptor endocytosis. Both AMPA receptor and calcineurin inhibitors prevent oligomer-induced surface AMPAR and spine loss. These results support a model of disease pathogenesis in which Abeta oligomers interact selectively with neurotransmission pathways at excitatory synapses, resulting in synaptic loss via facilitated endocytosis. Validation of this model in human disease would identify therapeutic targets for Alzheimer disease.

Indexed as

alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidAmyloid beta-PeptidesAnimalsCalcineurinCells, CulturedEndocytosisHippocampusHumansProtein MultimerizationProtein SubunitsRatsRats, Sprague-DawleyReceptors, AMPARNA, Small InterferingSynapsesalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidAmyloid beta-PeptidesCalcineuringlutamate receptor ionotropic, AMPA 2Protein SubunitsReceptors, AMPARNA, Small Interfering

Identifiers

PMID20032460
PMCPMC2844209
OpenAlexW2045318822

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.