Evidence map›Paper›PMID 22170863›Full record

ArticleEMBO molecular medicine2012

β- but not γ-secretase proteolysis of APP causes synaptic and memory deficits in a mouse model of dementia.

Robert Tamayev, Shuji Matsuda, Ottavio Arancio, Luciano D'Adamio

Open access · goldAbstract read
In one paragraph

Article in EMBO molecular medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers.

0numbers the graph read from it
0cells of the map it votes in
92citing 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

92 citing papers in PubMed, 141 citations in OpenAlex.

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  10. Towards a Unitary Hypothesis of Alzheimer's Disease Pathogenesis.Journal of Alzheimer's disease : JAD · 2024
    Article
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  12. Article
  13. Therapeutic Candidates for Alzheimer's Disease: Saponins.International journal of molecular sciences · 2023
    Review
  14. Article
  15. Article
  16. Review
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  18. Article
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32 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

4 authors at 3 institutions in 2 countries.

Robert TamayevDepartment of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA.
Shuji Matsuda
Ottavio Arancio
Luciano D'Adamio
Albert Einstein College of Medicine · USColumbia University · USInstitute of Cell Biology and Neurobiology · IT

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007288 · NIGMS · YESHIVA UNIVERSITY · PI AKABAS, MYLES H. · 1985 to 2022
$35.6M
BRI2 Familial British and Danish Dementias and Alzheimer's DiseaseR01AG033007 · NIA · RBHS-NEW JERSEY MEDICAL SCHOOL · PI D'ADAMIO, LUCIANO · 2009 to 2019
$4.2M
Dissecting APP-mediated memory deficits in Danish dementia knock-in miceR01AG041531 · NIA · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI D'ADAMIO, LUCIANO · 2012 to 2015
$1.5M
Insulin/Insulin receptor modulate APP phosphorylation and dementiaR21AG041577 · NIA · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI D'ADAMIO, LUCIANO · 2012 to 2013
$445k
Novel Animal Models of Familial British, Danish and Alzheimer's DementiaR21AG027139 · NIA · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI D'ADAMIO, LUCIANO · 2006 to 2007
$382k
NIA NIH HHS R01 AG033007NIA NIH HHS R01AG033007NIA NIH HHS R01 AG041531NIA NIH HHS R21 AG027139NIA NIH HHS R21 AG041577NIGMS NIH HHS T32 GM007288
6 · The paper itself

Abstract

A mutation in the BRI2/ITM2b gene causes loss of BRI2 protein leading to familial Danish dementia (FDD). BRI2 deficiency of FDD provokes an increase in amyloid-β precursor protein (APP) processing since BRI2 is an inhibitor of APP proteolysis, and APP mediates the synaptic/memory deficits in FDD. APP processing is linked to Alzheimer disease (AD) pathogenesis, which is consistent with a common mechanism involving toxic APP metabolites in both dementias. We show that inhibition of APP cleavage by β-secretase rescues synaptic/memory deficits in a mouse model of FDD. β-cleavage of APP yields amino-terminal-soluble APPβ (sAPPβ) and β-carboxyl-terminal fragments (β-CTF). Processing of β-CTF by γ-secretase releases amyloid-β (Aβ), which is assumed to cause AD. However, inhibition of γ-secretase did not ameliorate synaptic/memory deficits of FDD mice. These results suggest that sAPPβ and/or β-CTF, rather than Aβ, are the toxic species causing dementia, and indicate that reducing β-cleavage of APP is an appropriate therapeutic approach to treating human dementias. Our data and the failures of anti-Aβ therapies in humans advise against targeting γ-secretase cleavage of APP and/or Aβ.

Indexed as

MemoryNeuronal PlasticityAdaptor Proteins, Signal TransducingAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAnimalsCataractCerebellar AtaxiaDeafnessDementiaDisease Models, AnimalEnzyme InhibitorsHumansMembrane ProteinsMiceMice, KnockoutAdaptor Proteins, Signal TransducingAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesEnzyme InhibitorsItm2b protein, mouseMembrane Proteins

Identifiers

PMID22170863
PMCPMC3376850
OpenAlexW2148957789

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.