Evidence map›Paper›PMID 32927676›Full record

ReviewBiomolecules2020

From Seeds to Fibrils and Back: Fragmentation as an Overlooked Step in the Propagation of Prions and Prion-Like Proteins.

Cristóbal Marrero-Winkens, Charu Sankaran, Hermann M Schätzl

Open access · goldAbstract readReview
In one paragraph

Review in Biomolecules, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

16 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Exposed Hsp70-binding site impacts yeast Sup35 prion disaggregation and propagation.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  9. Creutzfeldt-Jakob disease and other prion diseases.Nature reviews. Disease primers · 2024
    Review
  10. Vaccines for prion diseases: a realistic goal?Cell and tissue research · 2023
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Frontiers in neuroscience · 2022
    Review
  16. 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

3 authors at 2 institutions in 1 country.

Cristóbal Marrero-WinkensDepartment of Comparative Biology & Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4Z6, Canada.
Charu SankaranDepartment of Comparative Biology & Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4Z6, Canada.
Hermann M SchätzlDepartment of Comparative Biology & Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4Z6, Canada.ORCID 0000-0003-4972-8740
University of Calgary · CAUniversity of British Columbia · CA

Funding

Alberta Innovates 201600010Alberta Innovates G2019000542
6 · The paper itself

Abstract

Many devastating neurodegenerative diseases are driven by the misfolding of normal proteins into a pathogenic abnormal conformation. Examples of such protein misfolding diseases include Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, and prion diseases. The misfolded proteins involved in these diseases form self-templating oligomeric assemblies that recruit further correctly folded protein and induce their conversion. Over time, this leads to the formation of high molecular and mostly fibrillar aggregates that are increasingly inefficient at converting normal protein. Evidence from a multitude of in vitro models suggests that fibrils are fragmented to form new seeds, which can convert further normal protein and also spread to neighboring cells as observed in vivo. While fragmentation and seed generation were suggested as crucial steps in aggregate formation decades ago, the biological pathways involved remain largely unknown. Here, we show that mechanisms of aggregate clearance-namely the mammalian Hsp70-Hsp40-Hsp110 tri-chaperone system, macro-autophagy, and the proteasome system-may not only be protective, but also play a role in fragmentation. We further review the challenges that exist in determining the precise contribution of these mechanisms to protein misfolding diseases and suggest future directions to resolve these issues.

Indexed as

Alzheimer DiseaseAmyloidAmyloidogenic ProteinsAmyotrophic Lateral SclerosisAutophagyGene Expression RegulationHSP110 Heat-Shock ProteinsHSP40 Heat-Shock ProteinsHSP70 Heat-Shock ProteinsHumansHuntington DiseaseParkinson DiseasePrion DiseasesPrion ProteinsProteasome Endopeptidase ComplexProtein AggregatesAmyloidAmyloidogenic ProteinsDNAJB1 protein, humanHSP110 Heat-Shock ProteinsHSP40 Heat-Shock ProteinsHSP70 Heat-Shock ProteinsHSPH1 protein, humanPrion ProteinsProteasome Endopeptidase ComplexProtein AggregatesAlzheimer’s diseaseamyloidautophagydisaggregationfragmentationHsp110neurodegenerationParkinson’s diseaseprion diseasesprotein misfolding

Identifiers

PMID32927676
PMCPMC7563560
OpenAlexW3084391774

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.