Evidence map›Paper›PMID 25931201›Full record

ArticleNeurobiology of disease2015

Effects of impaired membrane interactions on α-synuclein aggregation and neurotoxicity.

Daniel Ysselstein, Mehul Joshi, Vartika Mishra, Amy M Griggs, Josephat M Asiago, George P McCabe, Lia A Stanciu, Carol Beth Post, Jean-Christophe Rochet

Abstract read
In one paragraph

Article in Neurobiology of disease, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed, 1 pooled it
–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

58 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Emerging links between pediatric lysosomal storage diseases and adult parkinsonism.Movement disorders : official journal of the Movement Disorder Society · 2019
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
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  7. Article
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  9. Article
  10. Review
  11. Research Priorities on the Role of α-Synuclein in Parkinson's Disease Pathogenesis.Movement disorders : official journal of the Movement Disorder Society · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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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

9 authors.

Daniel YsselsteinDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA.
Mehul JoshiDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA.
Vartika MishraDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA.
Amy M GriggsDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA.
Josephat M AsiagoDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA.
George P McCabeDepartment of Statistics, Purdue University, West Lafayette, IN, USA.
Lia A StanciuSchools of Materials Engineering and Biomedical Engineering, Purdue University, West Lafayette, IN, USA.
Carol Beth PostDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA.
Jean-Christophe RochetDepartment of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN, USA. Electronic address: jrochet@purdue.edu.

Funding

Transgenic Mouse Core Facility Shared Resource (TMCF-SR)P30CA023168 · NCI · PURDUE UNIVERSITY WEST LAFAYETTE · PI John Tesmer · 1985 to 2026
$43.4M
Quality Assurance and Quality Control Project Management: Improving Submissions and Study Conduct in the Human Subjects Research Prior Approval ProcessUL1TR002529 · NCATS · INDIANA UNIVERSITY INDIANAPOLIS · PI MOE, SHARON M, WIEHE, SARAH ELIZABETH · 2018 to 2022
$27.2M
Indiana Clinical and Translational Sciences InstituteUL1TR001108 · NCATS · INDIANA UNIVERSITY INDIANAPOLIS · PI DENNE, SCOTT C., SHEKHAR, ANANTHA · 2013 to 2017
$23.3M
NMR Structure of Peptide and Protein Complexes SupplementR01GM039478 · NIGMS · PURDUE UNIVERSITY WEST LAFAYETTE · PI POST, CAROL B. · 1997 to 2024
$6.5M
Membrane binding and aggregation of alpha-synucleinR01NS049221 · NINDS · PURDUE UNIVERSITY · PI ROCHET, JEAN-CHRISTOPHE · 2006 to 2009
$960k
Metal-Induced Structural Transformations during Alpha-Synuclein Aggregation.K25NS058395 · NINDS · PURDUE UNIVERSITY · PI STANCIU, LIA · 2008 to 2012
$814k
NCATS NIH HHS UL1 TR001108NCI NIH HHS P30 CA023168NIGMS NIH HHS R01 GM039478NINDS NIH HHS K25 NS058395NINDS NIH HHS K25 NS058395-04NINDS NIH HHS R01 NS049221PHS HHS C06-14499PHS HHS C06-15480
6 · The paper itself

Abstract

The post-mortem brains of individuals with Parkinson's disease (PD) and other synucleinopathy disorders are characterized by the presence of aggregated forms of the presynaptic protein α-synuclein (aSyn). Understanding the molecular mechanism of aSyn aggregation is essential for the development of neuroprotective strategies to treat these diseases. In this study, we examined how interactions between aSyn and phospholipid vesicles influence the protein's aggregation and toxicity to dopaminergic neurons. Two-dimensional NMR data revealed that two familial aSyn mutants, A30P and G51D, populated an exposed, membrane-bound conformer in which the central hydrophobic region was dissociated from the bilayer to a greater extent than in the case of wild-type aSyn. A30P and G51D had a greater propensity to undergo membrane-induced aggregation and elicited greater toxicity to primary dopaminergic neurons compared to the wild-type protein. In contrast, the non-familial aSyn mutant A29E exhibited a weak propensity to aggregate in the presence of phospholipid vesicles or to elicit neurotoxicity, despite adopting a relatively exposed membrane-bound conformation. Our findings suggest that the aggregation of exposed, membrane-bound aSyn conformers plays a key role in the protein's neurotoxicity in PD and other synucleinopathy disorders.

Indexed as

Membranes, Artificialalpha-SynucleinAnimalsCell Line, TumorCells, CulturedCell SurvivalDopaminergic NeuronsEscherichia coliHumansMesencephalonMutationNeuritesProtein Structure, SecondaryRats, Sprague-DawleyRecombinant Proteinsalpha-SynucleinMembranes, ArtificialRecombinant ProteinsSNCA protein, humanAggregationFamilial mutationMembraneNeurodegenerationOligomerParkinson's diseasePhospholipidVesicleα-Helixα-Synuclein

Identifiers

PMID25931201
PMCPMC4458405

What OpenQuestion holds

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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.