Evidence map›Paper›PMID 26989481›Full record

ArticleRSC advances2015

Contrasting effects of nanoparticle-protein attraction on amyloid aggregation.

Slaven Radic, Thomas P Davis, Pu Chun Ke, Feng Ding

Open access · greenAbstract read
In one paragraph

Article in RSC advances, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
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  6. Review
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  8. The membrane axis of Alzheimer's nanomedicine.Advanced nanobiomed research · 2021
    Article
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  17. Mitigating Human IAPP Amyloidogenesis In Vivo with Chiral Silica Nanoribbons.Small (Weinheim an der Bergstrasse, Germany) · 2018
    Article
  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

4 authors at 3 institutions in 3 countries.

Slaven RadicDepartment of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA.
Thomas P DavisARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia; Department of Chemistry, Warwick University, Gibbet Hill, Coventry, CV4 7AL, United Kingdom.
Pu Chun KeARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
Feng DingDepartment of Physics and Astronomy, Clemson University, Clemson, SC 29634, USA.
Clemson University · USMonash University · AUUniversity of Warwick · GB

Funding

Predicting the Toxicity of Nanomaterials by a Transforming Protein CoronaR15ES022766 · NIEHS · CLEMSON UNIVERSITY · PI RAO, APPARAO · 2014 to 2014
$445k
NIEHS NIH HHS R15 ES022766
6 · The paper itself

Abstract

Nanoparticles (NPs) have been experimentally found to either promote or inhibit amyloid aggregation of proteins, but the molecular mechanisms for such complex behaviors remain unknown. Using coarse-grained molecular dynamics simulations, we investigated the effects of varying the strength of nonspecific NP-protein attraction on amyloid aggregation of a model protein, the amyloid-beta peptide implicated in Alzheimer's disease. Specifically, with increasing NP-peptide attraction, amyloid aggregation on the NP surface was initially promoted due to increased local protein concentration on the surface and destabilization of the folded state. However, further increase of NP-peptide attraction decreased the stability of amyloid fibrils and reduced their lateral diffusion on the NP surface necessary for peptide conformational changes and self-association, thus prohibiting amyloid aggregation. Moreover, we found that the relative concentration between protein and NPs also played an important role in amyloid aggregation. With a high NP/protein ratio, NPs that intrinsically promote protein aggregation may display an inhibitive effect by depleting the proteins in solution while having a low concentration of the proteins on each NP's surface. Our coarse-grained molecular dynamics simulation study offers a molecular mechanism for delineating the contrasting and seemingly conflicting effects of NP-protein attraction on amyloid aggregation and highlights the potential of tailoring anti-aggregation nanomedicine against amyloid diseases.

Identifiers

PMID26989481
PMCPMC4792304
OpenAlexW2185250882

What OpenQuestion holds

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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.