Evidence map›Paper›PMID 22874669›Full record

ArticlePrion

Alzheimer Aβ peptide interactions with lipid membranes: fibrils, oligomers and polymorphic amyloid channels.

Florentina Tofoleanu, Nicolae-Viorel Buchete

Open access · hybridAbstract read
In one paragraph

Article in Prion. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 63 citations in OpenAlex.

  1. Topological Encoded Vector Beams for Monitoring Amyloid-Lipid Interactions in Microcavity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021
    Article
  2. Defining the Neuropathological Aggresome acrossThe journal of physical chemistry. B · 2021
    Review
  3. Article
  4. The membrane axis of Alzheimer's nanomedicine.Advanced nanobiomed research · 2021
    Article
  5. Article
  6. A Novel AβScientific reports · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. The Molecular Physiopathogenesis of Islet Amyloidosis.Handbook of experimental pharmacology · 2018
    Review
  12. Ring-like N-fold Models of AβScientific reports · 2017
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. 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

2 authors at 1 institution in 1 country.

Florentina TofoleanuSchool of Physics, University College Dublin, Dublin, Ireland.
Nicolae-Viorel Buchete
University College Dublin · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fibrillar aggregates of misfolded amyloid proteins are involved in a variety of diseases such as Alzheimer disease (AD), type 2 diabetes, Parkinson, Huntington and prion-related diseases. In the case of AD amyloid β (Aβ) peptides, the toxicity of amyloid oligomers and larger fibrillar aggregates is related to perturbing the biological function of the adjacent cellular membrane. We used atomistic molecular dynamics (MD) simulations of Aβ 9-40 fibrillar oligomers modeled as protofilament segments, including lipid bilayers and explicit water molecules, to probe the first steps in the mechanism of Aβ-membrane interactions. Our study identified the electrostatic interaction between charged peptide residues and the lipid headgroups as the principal driving force that can modulate the further penetration of the C-termini of amyloid fibrils or fibrillar oligomers into the hydrophobic region of lipid membranes. These findings advance our understanding of the detailed molecular mechanisms and the effects related to Aβ-membrane interactions, and suggest a polymorphic structural character of amyloid ion channels embedded in lipid bilayers. While inter-peptide hydrogen bonds leading to the formation of β-strands may still play a stabilizing role in amyloid channel structures, these may also present a significant helical content in peptide regions (e.g., termini) that are subject to direct interactions with lipids rather than with neighboring Aβ peptides.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesCell MembraneHumansLipid BilayersMolecular Dynamics SimulationAmyloid beta-PeptidesLipid Bilayers

Identifiers

PMID22874669
PMCPMC3609060
OpenAlexW2027995645

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.