Evidence map›Paper›PMID 33311497›Full record

ArticleNPJ Parkinson's disease2020

Comparative proteomic analysis highlights metabolic dysfunction in α-synucleinopathy.

Souvarish Sarkar, Michael A Murphy, Eric B Dammer, Abby L Olsen, Srikant Rangaraju, Ernest Fraenkel, Mel B Feany

Open access · goldAbstract read
In one paragraph

Article in NPJ Parkinson's disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Mass spectrometry-based proteomics for biomarker discovery in theNeuroprotection (Chichester, England) · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. α-Synuclein Promotes Neuronal Dysfunction and Death by Disrupting the Binding of Ankyrin to β-Spectrin.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Precision Medicine on the Fly: Using Drosophila to Decipher Gene-Environment Interactions in Parkinson's Disease.Toxicological sciences : an official journal of the Society of Toxicology · 2021
    Article
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

7 authors at 3 institutions in 1 country.

Souvarish SarkarDepartment of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0002-7384-0508
Michael A MurphyDepartment of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.ORCID http://orcid.org/0000-0002-7343-8383
Eric B DammerDepartment of Neurology, Emory University, Atlanta, GA, USA.ORCID http://orcid.org/0000-0003-2947-7606
Abby L OlsenDepartment of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Srikant RangarajuDepartment of Neurology, Emory University, Atlanta, GA, USA.
Ernest FraenkelDepartment of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.ORCID http://orcid.org/0000-0001-9249-8181
Mel B FeanyDepartment of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. mel_feany@hms.harvard.edu.ORCID http://orcid.org/0000-0003-0315-7970
Brigham and Women's Hospital · USEmory University · USMassachusetts Institute of Technology · US

Funding

Resource Component: Acquisition, maintenance and distribution of Drosophila stocksP40OD018537 · OD · TRUSTEES OF INDIANA UNIVERSITY · PI Cale Whitworth · 2014 to 2026
$13.5M
Drosophila Transgenic RNAi Resource ProjectR01GM084947 · NIGMS · HARVARD MEDICAL SCHOOL · PI PERRIMON, NORBERT · 2008 to 2019
$9.8M
Integrative Multi-Omic Discovery of Proximal Mechanisms Driving Age-Dependent NeurodegenerationRF1AG057331 · NIA · BRIGHAM AND WOMEN'S HOSPITAL · PI FEANY, MEL B, FRAENKEL, ERNEST · 2017 to 2017
$4.8M
Genome Wide Analysis of Alpha-Synuclein NeurotoxicityR01NS098821 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI FEANY, MEL B · 2017 to 2021
$3.1M
Defining the genetic contribution of glia in Parkinson's disease pathogenesisK08NS109344 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI OLSEN, ABBY LAUREN · 2018 to 2022
$997k
Microglial and macrophage potassium channels as regulators of neuroinflammation in Alzheimer's DiseaseK08NS099474 · NINDS · EMORY UNIVERSITY · PI RANGARAJU, SRIKANT · 2016 to 2020
$943k
NIA NIH HHS RF1 AG057331NIGMS NIH HHS R01 GM084947NIH HHS P40 OD018537NINDS NIH HHS K08 NS099474NINDS NIH HHS K08 NS109344NINDS NIH HHS L30 NS108208NINDS NIH HHS R01 NS098821U.S. Department of Health & Human Services | National Institutes of Health (NIH) R01-AG057331
6 · The paper itself

Abstract

The synaptic protein α-synuclein is linked through genetics and neuropathology to the pathogenesis of Parkinson's disease and related disorders. However, the mechanisms by which α-synuclein influences disease onset and progression are incompletely understood. To identify pathogenic pathways and therapeutic targets we performed proteomic analysis in a highly penetrant new Drosophila model of α-synucleinopathy. We identified 476 significantly upregulated and 563 significantly downregulated proteins in heads from α-synucleinopathy model flies compared to controls. We then used multiple complementary analyses to identify and prioritize genes and pathways within the large set of differentially expressed proteins for functional studies. We performed Gene Ontology enrichment analysis, integrated our proteomic changes with human Parkinson's disease genetic studies, and compared the α-synucleinopathy proteome with that of tauopathy model flies, which are relevant to Alzheimer's disease and related disorders. These approaches identified GTP cyclohydrolase (GCH1) and folate metabolism as candidate mediators of α-synuclein neurotoxicity. In functional validation studies, we found that the knockdown of Drosophila Gch1 enhanced locomotor deficits in α-synuclein transgenic flies, while folate supplementation protected from α-synuclein toxicity. Our integrative analysis suggested that mitochondrial dysfunction was a common downstream mediator of neurodegeneration. Accordingly, Gch1 knockdown enhanced metabolic dysfunction in α-synuclein transgenic fly brains while folate supplementation partially normalized brain bioenergetics. Here we outline and implement an integrative approach to identify and validate potential therapeutic pathways using comparative proteomics and genetics and capitalizing on the facile genetic and pharmacological tools available in Drosophila.

Identifiers

PMID33311497
PMCPMC7732845
OpenAlexW3110777349

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.