Evidence map›Paper›PMID 28154182›Full record

ArticleThe Journal of biological chemistry2017

Reduced Lipid Bilayer Thickness Regulates the Aggregation and Cytotoxicity of Amyloid-β.

Kyle J Korshavn, Cristina Satriano, Yuxi Lin, Rongchun Zhang, Mark Dulchavsky, Anirban Bhunia, Magdalena I Ivanova, Young-Ho Lee, Carmelo La Rosa, Mi Hee Lim and 1 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
10.4field-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

78 citing papers in PubMed, 169 citations in OpenAlex.

  1. Article
  2. Toxic mechanisms of amyloid oligomers and therapeutic strategies.Protein science : a publication of the Protein Society · 2026
    Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Elucidation of molecular mechanisms by which amyloid βBiochimica et biophysica acta. Molecular and cell biology of lipids · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article

18 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

11 authors at 5 institutions in 5 countries.

Kyle J KorshavnFrom the Department of Chemistry.
Cristina Satrianothe Department of Chemical Sciences, University of Catania, Catania 95124, Italy.
Yuxi Linthe Institute for Protein Research, Osaka University, Osaka 565-0871, Japan.
Rongchun ZhangProgram in Biophysics, and.
Mark DulchavskyDepartment of Neurology, University of Michigan, Ann Arbor, Michigan 48109.
Anirban Bhuniathe Department of Biophysics, Bose Institute, Kolkata 700009, India, and.
Magdalena I IvanovaProgram in Biophysics, and.
Young-Ho Leethe Institute for Protein Research, Osaka University, Osaka 565-0871, Japan.
Carmelo La Rosathe Department of Chemical Sciences, University of Catania, Catania 95124, Italy.
Mi Hee Limthe Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea.
Ayyalusamy RamamoorthyFrom the Department of Chemistry, ramamoor@umich.edu.
University of Michigan–Ann Arbor · USProtein Research Foundation · JPUniversity of Catania · ITBose Institute · INUlsan National Institute of Science and Technology · KR

Funding

Membrane interaction and disruption by the Alzheimer's amyloid-beta peptideR01AG048934 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RAMAMOORTHY, AYYALUSAMY · 2016 to 2020
$2.0M
NIA NIH HHS R01 AG048934
6 · The paper itself

Abstract

The aggregation of amyloid-β (Aβ) on lipid bilayers has been implicated as a mechanism by which Aβ exerts its toxicity in Alzheimer's disease (AD). Lipid bilayer thinning has been observed during both oxidative stress and protein aggregation in AD, but whether these pathological modifications of the bilayer correlate with Aβ misfolding is unclear. Here, we studied peptide-lipid interactions in synthetic bilayers of the short-chain lipid dilauroyl phosphatidylcholine (DLPC) as a simplified model for diseased bilayers to determine their impact on Aβ aggregate, protofibril, and fibril formation. Aβ aggregation and fibril formation in membranes composed of dioleoyl phosphatidylcholine (DOPC) or 1- palmitoyl-2-oleoyl phosphatidylcholine mimicking normal bilayers served as controls. Differences in aggregate formation and stability were monitored by a combination of thioflavin-T fluorescence, circular dichroism, atomic force microscopy, transmission electron microscopy, and NMR. Despite the ability of all three lipid bilayers to catalyze aggregation, DLPC accelerates aggregation at much lower concentrations and prevents the fibrillation of Aβ at low micromolar concentrations. DLPC stabilized globular, membrane-associated oligomers, which could disrupt the bilayer integrity. DLPC bilayers also remodeled preformed amyloid fibrils into a pseudo-unfolded, molten globule state, which resembled on-pathway, protofibrillar aggregates. Whereas the stabilized, membrane-associated oligomers were found to be nontoxic, the remodeled species displayed toxicity similar to that of conventionally prepared aggregates. These results provide mechanistic insights into the roles that pathologically thin bilayers may play in Aβ aggregation on neuronal bilayers, and pathological lipid oxidation may contribute to Aβ misfolding.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesHumansLipid BilayersPhosphatidylcholinesProtein AggregatesProtein Structure, Secondary1,2-dilauroylphosphatidylcholine1,2-oleoylphosphatidylcholine1-palmitoyl-2-oleoylphosphatidylcholineAmyloid beta-PeptidesLipid BilayersPhosphatidylcholinesProtein AggregatesAlzheimer diseaseamyloid-beta (AB)lipid bilayerprotein misfoldingtoxicity

Identifiers

PMID28154182
PMCPMC5377779
OpenAlexW2583728075

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.