Evidence map›Paper›PMID 32859276›Full record

ArticleActa neuropathologica communications2020

Trans-synaptic and retrograde axonal spread of Lewy pathology following pre-formed fibril injection in an in vivo A53T alpha-synuclein mouse model of synucleinopathy.

Allison J Schaser, Teresa L Stackhouse, Leah J Weston, Patrick C Kerstein, Valerie R Osterberg, Claudia S López, Dennis W Dickson, Kelvin C Luk, Charles K Meshul, Randall L Woltjer and 1 more

Open access · goldAbstract read
In one paragraph

Article in Acta neuropathologica communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
3.1field-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

49 citing papers in PubMed, 67 citations in OpenAlex.

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  17. Rab27b Promotes Lysosomal Function and Alpha-Synuclein Clearance in Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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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

11 authors at 3 institutions in 1 country.

Allison J SchaserDepartment of Neurology and Jungers Center for Neurosciences Research, Oregon Health and Science University, Portland, OR, 97239, USA.
Teresa L StackhouseDepartment of Neurology and Jungers Center for Neurosciences Research, Oregon Health and Science University, Portland, OR, 97239, USA.
Leah J WestonDepartment of Neurology and Jungers Center for Neurosciences Research, Oregon Health and Science University, Portland, OR, 97239, USA.
Patrick C KersteinVollum Institute, Oregon Health and Science University, Portland, OR, 97239, USA.
Valerie R OsterbergDepartment of Neurology and Jungers Center for Neurosciences Research, Oregon Health and Science University, Portland, OR, 97239, USA.
Claudia S LópezMultiscale Microscopy Core, Oregon Health and Science University, Portland, OR, 97239, USA.
Dennis W DicksonDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA.
Kelvin C LukDepartment of Pathology and Laboratory Medicine, Institute on Aging and Center for Neurodegenerative Disease Research, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA.
Charles K MeshulResearch Services, Veterans Affairs Medical Center, Portland, OR, 97239, USA.
Randall L WoltjerDepartment of Pathology, Oregon Health and Science University, Portland, OR, 97239, USA.
Vivek K UnniDepartment of Neurology and Jungers Center for Neurosciences Research, Oregon Health and Science University, Portland, OR, 97239, USA. unni@ohsu.edu.ORCID 0000-0001-8833-6542
Oregon Health & Science University · USInstitute on Aging · USMayo Clinic in Florida · US

Funding

Ultrastructure and Single Particle Microscopy CoreP30NS061800 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI AICHER, SUE A · 2009 to 2020
$6.6M
Neuroscience of Aging, Neurodegeneration and Alzheimer’s DiseaseT32AG055378 · NIA · OREGON HEALTH & SCIENCE UNIVERSITY · PI JACOB RABER, HENRYK F URBANSKI · 2018 to 2026
$4.3M
Mechanisms of Neurodegeneration in Lewy Body DisordersR01NS102227 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI UNNI, VIVEK · 2017 to 2021
$1.9M
The regulation of alpha-synuclein and neurodegeneration in Parkinson's DiseaseK08NS069625 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI UNNI, VIVEK · 2010 to 2014
$905k
Mechanisms of neuronal cell death in synucleinopathiesK02NS096190 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI UNNI, VIVEK · 2016 to 2020
$832k
Gbx2 regulates the development of an atypical amacrine cell.F32EY029974 · NEI · OREGON HEALTH & SCIENCE UNIVERSITY · PI KERSTEIN, PATRICK C · 2019 to 2021
$146k
BLRD VA I01 BX000552BLRD VA I01 BX001643NEI NIH HHS F32 EY029974NEI NIH HHS F32EY029974NIA NIH HHS T32 AG055378NIA NIH HHS T32AG055378NINDS NIH HHS K02 NS096190NINDS NIH HHS K08 NS069625NINDS NIH HHS NS061800NINDS NIH HHS NS069625NINDS NIH HHS NS096190NINDS NIH HHS NS102227NINDS NIH HHS P30 NS061800NINDS NIH HHS R01 NS102227
6 · The paper itself

Abstract

It is necessary to develop an understanding of the specific mechanisms involved in alpha-synuclein aggregation and propagation to develop disease modifying therapies for age-related synucleinopathies, including Parkinson's disease and Dementia with Lewy Bodies. To adequately address this question, we developed a new transgenic mouse model of synucleinopathy that expresses human A53T SynGFP under control of the mouse prion protein promoter. Our characterization of this mouse line demonstrates that it exhibits several distinct advantages over other, currently available, mouse models. This new model allows rigorous study of the initial location of Lewy pathology formation and propagation in the living brain, and strongly suggests that aggregation begins in axonal structures with retrograde propagation to the cell body. This model also shows expeditious development of alpha-synuclein pathology following induction with small, in vitro-generated alpha-synuclein pre-formed fibrils (PFFs), as well as accelerated cell death of inclusion-bearing cells. Using this model, we found that aggregated alpha-synuclein somatic inclusions developed first in neurons, but later showed a second wave of inclusion formation in astrocytes. Interestingly, astrocytes appear to survive much longer after inclusion formation than their neuronal counterparts. This model also allowed careful study of peripheral-to-central spread of Lewy pathology after PFF injection into the hind limb musculature. Our results clearly show evidence of progressive, retrograde trans-synaptic spread of Lewy pathology through known neuroanatomically connected pathways in the motor system. As such, we have developed a promising tool to understand the biology of neurodegeneration associated with alpha-synuclein aggregation and to discover new treatments capable of altering the neurodegenerative disease course of synucleinopathies.

Indexed as

alpha-SynucleinAnimalsAstrocytesAxonsBrainDisease Models, AnimalFemaleHumansLewy BodiesMaleMiceMice, TransgenicNeuronsProtein TransportSynucleinopathiesalpha-SynucleinAlpha-synucleinDementia with Lewy bodiesLewy bodyNeurodegenerationParkinson’s diseaseSynucleinopathiesTrans-synaptic spread

Identifiers

PMID32859276
PMCPMC7456087
OpenAlexW3082420787

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.