Evidence map›Paper›PMID 24648544›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2014

Heparin binding confers prion stability and impairs its aggregation.

Tuane C R G Vieira, Yraima Cordeiro, Byron Caughey, Jerson L Silva

Abstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.3field-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

33 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
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  8. Article
  9. Rabbit PrP Is Partially Resistant toFrontiers in neuroscience · 2021
    Article
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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.

Tuane C R G VieiraCentro Nacional de Ressonância Magnética Nuclear Jiri Jonas, Instituto de Bioquímica Médica Leopoldo De Meis, Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, and jerson@bioqmed.ufrj.br tuane@bioqmed.ufrj.br.
Yraima CordeiroFaculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; and.
Byron CaugheyLaboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institute of Allergy and Infectious Diseases, U.S. National Institutes of Health, Hamilton, Montana, USA.
Jerson L SilvaCentro Nacional de Ressonância Magnética Nuclear Jiri Jonas, Instituto de Bioquímica Médica Leopoldo De Meis, Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, and jerson@bioqmed.ufrj.br tuane@bioqmed.ufrj.br.
Universidade Federal do Rio de Janeiro · BRNational Institute of Science and Technology for Structural Biology and Bioimaging · BRNational Institutes of Health · US

Funding

Prion Disease TherapeuticsZIAAI001087 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI CAUGHEY, BYRON · 2009 to 2025
$2.5M
6 · The paper itself

Abstract

The conversion of the prion protein (PrP) into scrapie PrP (PrP(Sc)) is a central event in prion diseases. Several molecules work as cofactors in the conversion process, including glycosaminoglycans (GAGs). GAGs exhibit a paradoxical effect, as they convert PrP into protease-resistant PrP (PrP-res) but also exert protective activity. We compared the stability and aggregation propensity of PrP and the heparin-PrP complex through the application of different in vitro aggregation approaches, including real-time quaking-induced conversion (RT-QuIC). Transmissible spongiform encephalopathy-associated forms from mouse and hamster brain homogenates were used to seed RT-QuIC-induced fibrillization. In our study, interaction between heparin and cellular PrP (PrP(C)) increased thermal PrP stability, leading to an 8-fold decrease in temperature-induced aggregation. The interaction of low-molecular-weight heparin (LMWHep) with the PrP N- or C-terminal domain affected not only the extent of PrP fibrillization but also its kinetics, lowering the reaction rate constant from 1.04 to 0.29 s(-1) and increasing the lag phase from 12 to 19 h in RT-QuIC experiments. Our findings explain the protective effect of heparin in different models of prion and prion-like neurodegenerative diseases and establish the groundwork for the development of therapeutic strategies based on GAGs.

Indexed as

AmyloidAnimalsCricetinaeHeparinHeparin, Low-Molecular-WeightKineticsMicePrion DiseasesPrionsProtein BindingProtein MultimerizationProtein StabilityPrPC ProteinsPrPSc ProteinsAmyloidHeparinHeparin, Low-Molecular-WeightPrionsPrPC ProteinsPrPSc Proteinsglycosaminoglycanneurodegeneration

Identifiers

PMID24648544
PMCPMC4021443
OpenAlexW2120671345

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.