Evidence map›Paper›PMID 22532566›Full record

ArticleThe Journal of biological chemistry2012

Generation of Alzheimer disease-associated amyloid β42/43 peptide by γ-secretase can be inhibited directly by modulation of membrane thickness.

Edith Winkler, Frits Kamp, Johannes Scheuring, Amelie Ebke, Akio Fukumori, Harald Steiner

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

43 citing papers in PubMed, 98 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
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  6. Review
  7. Towards a Unitary Hypothesis of Alzheimer's Disease Pathogenesis.Journal of Alzheimer's disease : JAD · 2024
    Article
  8. Article
  9. Review
  10. Article
  11. Formation of extramembraneProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  12. Article
  13. Article
  14. Complement System in Alzheimer's Disease.International journal of molecular sciences · 2021
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. Structure of APP-C99Biochimica et biophysica acta. Biomembranes · 2018
    Article
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 3 institutions in 1 country.

Edith WinklerAdolf Butenandt Institute, Biochemistry, Ludwig Maximilians University Munich, Schillerstrasse 44, 80336 Munich, Germany.
Frits Kamp
Johannes Scheuring
Amelie Ebke
Akio Fukumori
Harald Steiner
German Center for Neurodegenerative Diseases · DELudwig-Maximilians-Universität München · DETechnical University of Munich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pathogenic generation of amyloid β-peptide (Aβ) by sequential cleavage of β-amyloid precursor protein (APP) by β- and γ-secretases is widely believed to causally underlie Alzheimer disease (AD). β-Secretase initially cleaves APP thereby generating a membrane-bound APP C-terminal fragment, from which γ-secretase subsequently liberates 37-43-amino acid long Aβ species. Although the latter cleavages are intramembranous and although lipid alterations have been implicated in AD, little is known of how the γ-secretase-mediated release of the various Aβ species, in particular that of the pathogenic longer variants Aβ(42) and Aβ(43), is affected by the lipid environment. Using a cell-free system, we have directly and systematically investigated the activity of γ-secretase reconstituted in defined model membranes of different thicknesses. We found that bilayer thickness is a critical parameter affecting both total activity as well as cleavage specificity of γ-secretase. Whereas the generation of the pathogenic Aβ(42/43) species was markedly attenuated in thick membranes, that of the major and rather benign Aβ(40) species was enhanced. Moreover, the increased production of Aβ(42/43) by familial AD mutants of presenilin 1, the catalytic subunit of γ-secretase, could be substantially lowered in thick membranes. Our data demonstrate an effective modulation of γ-secretase activity by membrane thickness, which may provide an approach to lower the generation of the pathogenic Aβ(42/43) species.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesCell MembraneHEK293 CellsHumansMembrane LipidsMutationAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesMembrane Lipids

Identifiers

PMID22532566
PMCPMC3375553
OpenAlexW2095375670

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.