Evidence map›Paper›PMID 24859148›Full record

ArticlePloS one2014

Role of lipid rafts and GM1 in the segregation and processing of prion protein.

Laura Botto, Diana Cunati, Silvia Coco, Silvia Sesana, Alessandra Bulbarelli, Emiliano Biasini, Laura Colombo, Alessandro Negro, Roberto Chiesa, Massimo Masserini and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. What is the role of lipids in prion conversion and disease?Frontiers in molecular neuroscience · 2022
    Review
  3. Review
  4. Article
  5. PrPFrontiers in molecular neuroscience · 2021
    Review
  6. Article
  7. Review
  8. Neurotrophic effects of GScientific reports · 2020
    Article
  9. Article
  10. Inflammatory mediators reduce surface PrPLaboratory investigation; a journal of technical methods and pathology · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. The Anti-Prion Antibody 15B3 Detects Toxic Amyloid-β Oligomers.Journal of Alzheimer's disease : JAD · 2016
    Article
  16. Article
  17. Article
  18. Review
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 3 institutions in 1 country.

Laura BottoDepartment of Health Science - Medical School, University of Milano-Bicocca, Monza, Italy.
Diana CunatiDepartment of Health Science - Medical School, University of Milano-Bicocca, Monza, Italy.
Silvia CocoDepartment of Health Science - Medical School, University of Milano-Bicocca, Monza, Italy.
Silvia SesanaDepartment of Health Science - Medical School, University of Milano-Bicocca, Monza, Italy.
Alessandra BulbarelliDepartment of Health Science - Medical School, University of Milano-Bicocca, Monza, Italy.
Emiliano BiasiniDepartment of Neuroscience, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy.
Laura ColomboDepartment of Molecular Biochemistry and Pharmacology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy.
Alessandro NegroDepartment of Biomedical Sciences, University of Padova, Padova, Italy.
Roberto ChiesaDepartment of Neuroscience, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy.
Massimo MasseriniDepartment of Health Science - Medical School, University of Milano-Bicocca, Monza, Italy.
Paola PalestiniDepartment of Health Science - Medical School, University of Milano-Bicocca, Monza, Italy.
University of Milano-Bicocca · ITMario Negri Institute for Pharmacological Research · ITUniversity of Padua · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The prion protein (PrPC) is highly expressed within the nervous system. Similar to other GPI-anchored proteins, PrPC is found in lipid rafts, membrane domains enriched in cholesterol and sphingolipids. PrPC raft association, together with raft lipid composition, appears essential for the conversion of PrPC into the scrapie isoform PrPSc, and the development of prion disease. Controversial findings were reported on the nature of PrPC-containing rafts, as well as on the distribution of PrPC between rafts and non-raft membranes. We investigated PrPC/ganglioside relationships and their influence on PrPC localization in a neuronal cellular model, cerebellar granule cells. Our findings argue that in these cells at least two PrPC conformations coexist: in lipid rafts PrPC is present in the native folding (α-helical), stabilized by chemico-physical condition, while it is mainly present in other membrane compartments in a PrPSc-like conformation. We verified, by means of antibody reactivity and circular dichroism spectroscopy, that changes in lipid raft-ganglioside content alters PrPC conformation and interaction with lipid bilayers, without modifying PrPC distribution or cleavage. Our data provide new insights into the cellular mechanism of prion conversion and suggest that GM1-prion protein interaction at the cell surface could play a significant role in the mechanism predisposing to pathology.

Indexed as

G(M1) GangliosideMembrane MicrodomainsProteolysisPrPC ProteinsPrPSc ProteinsAnimalsLipid BilayersNeuronsProtein Structure, SecondaryRatsRats, Sprague-DawleyG(M1) GangliosideLipid BilayersPrPC ProteinsPrPSc Proteins

Identifiers

PMID24859148
PMCPMC4032283
OpenAlexW2147929327

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.