Evidence map›Paper›PMID 30980041›Full record

ArticleMolecular psychiatry2020

Familial Alzheimer's disease patient-derived neurons reveal distinct mutation-specific effects on amyloid beta.

Charles Arber, Jamie Toombs, Christopher Lovejoy, Natalie S Ryan, Ross W Paterson, Nanet Willumsen, Eleni Gkanatsiou, Erik Portelius, Kaj Blennow, Amanda Heslegrave and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Molecular psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed, 1 pooled it
9.8field-weighted citation impact, top 1% 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

82 citing papers in PubMed, 1 synthesis or guideline pooled it, 152 citations in OpenAlex.

  1. Pooled it
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  20. Research on Alzheimer's Disease (AD) Involving the Use ofCentral nervous system agents in medicinal chemistry · 2025
    Review

22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 5 institutions in 2 countries.

Charles Arber *Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.ORCID http://orcid.org/0000-0002-9743-8134
Jamie Toombs *Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Christopher LovejoyDepartment of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Natalie S RyanDementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Ross W PatersonDementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Nanet WillumsenDepartment of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Eleni GkanatsiouDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Erik PorteliusDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Kaj BlennowDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.
Amanda HeslegraveDepartment of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Jonathan M SchottDementia Research Centre, Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.ORCID http://orcid.org/0000-0003-2059-024X
John HardyDepartment of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Tammaryn LashleyDepartment of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
Nick C FoxUK Dementia Research Institute at UCL, London, UK.
Henrik Zetterberg *Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK. henrik.zetterberg@clinchem.gu.se.
Selina Wray *Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK. selina.wray@ucl.ac.uk.
UK Dementia Research Institute · GBNational Hospital for Neurology and Neurosurgery · GBSahlgrenska University Hospital · SEMRC Prion Unit · GBUniversity of Gothenburg · SE

Funding

Medical Research Council G0701075Medical Research Council G0900421Medical Research Council G0901254Medical Research Council G1001253Medical Research Council MC_U12266BMedical Research Council MR/J004758/1Medical Research Council MR/L501542/1Medical Research Council MR/M02492X/1Parkinson's UK G-1307
6 · The paper itself

Abstract

Familial Alzheimer's disease (fAD) mutations alter amyloid precursor protein (APP) cleavage by γ-secretase, increasing the proportion of longer amyloidogenic amyloid-β (Aβ) peptides. Using five control induced pluripotent stem cell (iPSC) lines and seven iPSC lines generated from fAD patients, we investigated the effects of mutations on the Aβ secretome in human neurons generated in 2D and 3D. We also analysed matched CSF, post-mortem brain tissue, and iPSCs from the same participant with the APP V717I mutation. All fAD mutation lines demonstrated an increased Aβ42:40 ratio relative to controls, yet displayed varied signatures for Aβ43, Aβ38, and short Aβ fragments. We propose four qualitatively distinct mechanisms behind raised Aβ42:40. (1) APP V717I mutations alter γ-secretase cleavage site preference. Whereas, distinct presenilin 1 (PSEN1) mutations lead to either (2) reduced γ-secretase activity, (3) altered protein stability or (4) reduced PSEN1 maturation, all culminating in reduced γ-secretase carboxypeptidase-like activity. These data support Aβ mechanistic tenets in a human physiological model and substantiate iPSC-neurons for modelling fAD.

Indexed as

MutationAdultAgedAlzheimer DiseaseAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesCells, CulturedFemaleHumansMaleMiddle AgedNeuronsPeptide FragmentsPresenilin-1Young AdultAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesPeptide FragmentsPresenilin-1

Identifiers

PMID30980041
PMCPMC7577860
OpenAlexW2937299859

What OpenQuestion holds

Textmetadata
LicenceTDM
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.