Evidence map›Paper›PMID 33519421›Full record

ArticleFrontiers in aging neuroscience2020

Absence of Uptake and Prion-Like Spreading of Alpha-Synuclein and Tau After Intravitreal Injection of Preformed Fibrils.

Lien Veys, Jessie Van Houcke, Jeroen Aerts, Sophie Van Pottelberge, Michel Mahieu, Audrey Coens, Ronald Melki, Dieder Moechars, Louis De Muynck, Lies De Groef

Abstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Is Multiple System Atrophy a Prion-like Disorder?International journal of molecular sciences · 2021
    Review
  8. Article
  9. 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

10 authors.

Lien VeysLaboratory Neural Circuit Development and Regeneration, Department of Biology, KU Leuven, Leuven, Belgium.
Jessie Van HouckeDepartment of Neuroscience, Janssen Research and Development, Division of Janssen Pharmaceutica NV, Beerse, Belgium.
Jeroen AertsDepartment of Neuroscience, Janssen Research and Development, Division of Janssen Pharmaceutica NV, Beerse, Belgium.
Sophie Van PottelbergeDepartment of Neuroscience, Janssen Research and Development, Division of Janssen Pharmaceutica NV, Beerse, Belgium.
Michel MahieuDepartment of Neuroscience, Janssen Research and Development, Division of Janssen Pharmaceutica NV, Beerse, Belgium.
Audrey CoensLaboratory of Neurodegenerative Disease, Institute François Jacob, MIRCen, CEA-CNRS, Fontenay aux Roses, France.
Ronald MelkiLaboratory of Neurodegenerative Disease, Institute François Jacob, MIRCen, CEA-CNRS, Fontenay aux Roses, France.
Dieder MoecharsDepartment of Neuroscience, Janssen Research and Development, Division of Janssen Pharmaceutica NV, Beerse, Belgium.
Louis De MuynckDepartment of Neuroscience, Janssen Research and Development, Division of Janssen Pharmaceutica NV, Beerse, Belgium.
Lies De GroefLaboratory Neural Circuit Development and Regeneration, Department of Biology, KU Leuven, Leuven, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although very different in etiology and symptoms, numerous neurodegenerative diseases can be classified as proteinopathies. More so, evidence indicates that the key misfolded proteins at the basis of different neuropathies might share common mechanisms of propagation. As such, the prion-like spreading of protein aggregates through the neural network is subject of intensive research focus and requires adequate models. Here, we made use of the well-defined architecture and large accessibility of the visual system, of which the retinotopic connections represent a simple route of anterograde signaling and an elegant model to investigate transsynaptic, prion-like spreading. In two independent studies, uptake and seeding of alpha-synuclein and tau were examined after intravitreal injection of preformed fibrils. However, extracellular matrix components in the vitreous space and at the vitreoretinal surface appeared to act as a barrier for the entry of both fibrils into the retina. These results show that further experimental refinement is needed to fully realize the potential of the visual system as a model for studying the molecular and cellular mechanisms of anterograde, transsynaptic spreading of prion-like proteins.

Indexed as

alpha-synucleinintravitreal injectionprion-like spreadingtauvisual system

Identifiers

PMID33519421
PMCPMC7843377

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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.