Evidence map›Paper›PMID 26618561›Full record

ArticleACS chemical neuroscience2016

Direct High Affinity Interaction between Aβ42 and GSK3α Stimulates Hyperphosphorylation of Tau. A New Molecular Link in Alzheimer's Disease?

Christopher J Dunning, Gavin McGauran, Katarina Willén, Gunnar K Gouras, David J O'Connell, Sara Linse

Open access · greenAbstract read
In one paragraph

Article in ACS chemical neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 57 citations in OpenAlex.

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  17. A Palette of Fluorescent AInternational journal of molecular sciences · 2022
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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

6 authors at 2 institutions in 2 countries.

Christopher J DunningDepartment of Biochemistry and Structural Biology, Chemical Centre, Lund University , P O Box 124, SE22100 Lund, Sweden.
Gavin McGauranSchool of Biomolecular & Biomedical Science, Conway Institute, University College Dublin , Belfield, Dublin 4, Ireland.
Katarina WillénDepartment of Experimental Medical Science, Lund University , SE22100 Lund, Sweden.
Gunnar K GourasDepartment of Experimental Medical Science, Lund University , SE22100 Lund, Sweden.
David J O'ConnellSchool of Biomolecular & Biomedical Science, Conway Institute, University College Dublin , Belfield, Dublin 4, Ireland.
Sara LinseDepartment of Biochemistry and Structural Biology, Chemical Centre, Lund University , P O Box 124, SE22100 Lund, Sweden.
Lund University · SEUniversity College Dublin · IE

Funding

European Research Council 340890
6 · The paper itself

Abstract

Amyloid β peptide (Aβ42) assemblies are considered central to the development of Alzheimer's disease, but the mechanism of this toxicity remains unresolved. We screened protein microarrays with on-pathway oligomeric Aβ42 to identify candidate proteins interacting with toxic Aβ42 species. Samples prepared from Alexa546-Aβ42 and Aβ42 monomers at 1:5 molar ratio were incubated with the array during a time window of the amyloid fibril formation reaction during which the maximum number of transient oligomers exist in the reaction flux. A specific interaction was detected between Aβ42 and glycogen synthase kinase 3α (GSK3α), a kinase previously implicated in the disease pathology. This interaction was validated with anti-GSK3α immunoprecipitation assays in neuronal cell lysates. Confocal microscopy studies further identified colocalization of Aβ42 and GSK3α in neurites of mature primary mouse neurons. A high binding affinity (KD = 1 nM) was measured between Alexa488-Aβ42 and GSK3α in solution using thermophoresis. An even lower apparent KD was estimated between GSK3α and dextran-immobilized Aβ42 in surface plasmon resonance experiments. Parallel experiments with GSK3β also identified colocalization and high affinity binding to this isoform. GSK3α-mediated hyperphosphorylation of the protein tau was found to be stimulated by Aβ42 in in vitro phosphorylation assays and identified a functional relationship between the proteins. We uncover a direct and functional molecular link between Aβ42 and GSK3α, which opens an important avenue toward understanding the mechanism of Aβ42-mediated neuronal toxicity in Alzheimer's disease.

Indexed as

Amyloid beta-PeptidesAmyloid beta-Protein PrecursorAnimalsCells, CulturedCerebral CortexDose-Response Relationship, DrugEmbryo, MammalianGlycogen Synthase Kinase 3Glycogen Synthase Kinase 3 betaHumansImmunoprecipitationMiceMicroscopy, ConfocalMutationNeuronsPeptide FragmentsAmyloid beta-Peptidesamyloid beta-protein (1-42)Amyloid beta-Protein PrecursorAPP protein, humanGlycogen Synthase Kinase 3glycogen synthase kinase 3 alphaGlycogen Synthase Kinase 3 betaPeptide Fragmentstau Proteinsamyloid betaInteractomemicroarray screensignalingtarget protein

Identifiers

PMID26618561
PMCPMC4759616
OpenAlexW2268919388

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.