Evidence map›Paper›PMID 28420656›Full record

ArticleEMBO reports2017

Posttranslational modification impact on the mechanism by which amyloid-β induces synaptic dysfunction.

Katarzyna M Grochowska, PingAn Yuanxiang, Julia Bär, Rajeev Raman, Gemma Brugal, Giriraj Sahu, Michaela Schweizer, Arthur Bikbaev, Stephan Schilling, Hans-Ulrich Demuth and 1 more

Abstract read
In one paragraph

Article in EMBO reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.0field-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

36 citing papers in PubMed, 76 citations in OpenAlex.

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  9. Dual Role of NMDAR Containing NR2A and NR2B Subunits in Alzheimer's Disease.International journal of molecular sciences · 2024
    Article
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  11. Integration of nuclear CaCellular and molecular life sciences : CMLS · 2023
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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

11 authors at 4 institutions in 2 countries.

Katarzyna M GrochowskaRG Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany.
PingAn YuanxiangRG Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany.
Julia BärRG Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany.
Rajeev RamanRG Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany.
Gemma BrugalDepartment of Biochemistry and Molecular Biology, Faculty of Biology, Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas, University of Barcelona, Barcelona, Spain.
Giriraj SahuRG Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany.
Michaela SchweizerMorphology Unit, Center for Molecular Neurobiology ZMNH, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Arthur BikbaevRG Molecular Physiology, Leibniz Institute for Neurobiology, Magdeburg, Germany.
Stephan SchillingDepartment of Drug Design and Target Validation MWT, Fraunhofer Institute of Cell Therapy and Immunology IZI Leipzig, Halle, Germany.
Hans-Ulrich DemuthDepartment of Drug Design and Target Validation MWT, Fraunhofer Institute of Cell Therapy and Immunology IZI Leipzig, Halle, Germany.
Michael R KreutzRG Neuroplasticity, Leibniz Institute for Neurobiology, Magdeburg, Germany kreutz@lin-magdeburg.de.ORCID 0000-0003-0575-6950
Leibniz Institute for Neurobiology · DEUniversität Hamburg · DEFraunhofer Institute for Cell Therapy and Immunology · DECentro de Investigación Biomédica en Red · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oligomeric amyloid-β (Aβ) 1-42 disrupts synaptic function at an early stage of Alzheimer's disease (AD). Multiple posttranslational modifications of Aβ have been identified, among which N-terminally truncated forms are the most abundant. It is not clear, however, whether modified species can induce synaptic dysfunction on their own and how altered biochemical properties can contribute to the synaptotoxic mechanisms. Here, we show that a prominent isoform, pyroglutamated Aβ3(pE)-42, induces synaptic dysfunction to a similar extent like Aβ1-42 but by clearly different mechanisms. In contrast to Aβ1-42, Aβ3(pE)-42 does not directly associate with synaptic membranes or the prion protein but is instead taken up by astrocytes and potently induces glial release of the proinflammatory cytokine TNFα. Moreover, Aβ3(pE)-42-induced synaptic dysfunction is not related to NMDAR signalling and Aβ3(pE)-42-induced impairment of synaptic plasticity cannot be rescued by D1-agonists. Collectively, the data point to a scenario where neuroinflammatory processes together with direct synaptotoxic effects are caused by posttranslational modification of soluble oligomeric Aβ and contribute synergistically to the onset of synaptic dysfunction in AD.

Indexed as

Protein Processing, Post-TranslationalAlzheimer DiseaseAmyloid beta-PeptidesAnimalsMiceNerve Tissue ProteinsNeuroimmunomodulationNeuronal PlasticityPeptide FragmentsProtein IsoformsReceptors, N-Methyl-D-AspartateSignal TransductionSynapsesTumor Necrosis Factor-alphaAmyloid beta-Peptidesamyloid beta-protein (3-42), pyroglutamyl(3)-Jacob protein, mouseNerve Tissue ProteinsPeptide FragmentsProtein IsoformsReceptors, N-Methyl-D-AspartateTumor Necrosis Factor-alphaamyloid‐β1‐42amyloid‐β3(pE)‐42JacobN‐methyl‐d‐aspartate‐receptorTNFα

Identifiers

PMID28420656
PMCPMC5452034
OpenAlexW2606113932

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.