Evidence map›Paper›PMID 21264320›Full record

ArticlePloS one2011

Defects in very long chain fatty acid synthesis enhance alpha-synuclein toxicity in a yeast model of Parkinson's disease.

Yong Joo Lee, Shaoxiao Wang, Sunny R Slone, Talene A Yacoubian, Stephan N Witt

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 49 citations in OpenAlex.

  1. Review
  2. Associations Between Diabetes Mellitus and Neurodegenerative Diseases.International journal of molecular sciences · 2025
    Review
  3. Review
  4. Article
  5. The Contribution of Type 2 Diabetes to Parkinson's Disease Aetiology.International journal of molecular sciences · 2024
    Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Genome-wide screen identifies curli amyloid fibril as a bacterial component promoting host neurodegeneration.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Mitochondrial lipids in neurodegeneration.Cell and tissue research · 2017
    Review
  20. 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

5 authors at 2 institutions in 1 country.

Yong Joo LeeDepartment of Biochemistry and Molecular Biology, Louisiana State University Health Sciences Center at Shreveport, Shreveport, Louisiana, United States of America.
Shaoxiao Wang
Sunny R Slone
Talene A Yacoubian
Stephan N Witt
Louisiana State University Health Sciences Center Shreveport · USUniversity of Alabama at Birmingham · US

Funding

Mechanisms of protection against alpha-synuclein-induced oxidative stressR01NS057656 · NINDS · LOUISIANA STATE UNIV HSC SHREVEPORT · PI WITT, STEPHAN N. · 2008 to 2012
$1.4M
NINDS NIH HHS NS057656NINDS NIH HHS R01 NS057656
6 · The paper itself

Abstract

We identified three S. cerevisiae lipid elongase null mutants (elo1Δ, elo2Δ, and elo3Δ) that enhance the toxicity of alpha-synuclein (α-syn). These elongases function in the endoplasmic reticulum (ER) to catalyze the elongation of medium chain fatty acids to very long chain fatty acids, which is a component of sphingolipids. Without α-syn expression, the various elo mutants showed no growth defects, no reactive oxygen species (ROS) accumulation, and a modest decrease in survival of aged cells compared to wild-type cells. With (WT, A53T or E46K) α-syn expression, the various elo mutants exhibited severe growth defects (although A30P had a negligible effect on growth), ROS accumulation, aberrant protein trafficking, and a dramatic decrease in survival of aged cells compared to wild-type cells. Inhibitors of ceramide synthesis, myriocin and FB1, were extremely toxic to wild-type yeast cells expressing (WT, A53T, or E46K) α-syn but much less toxic to cells expressing A30P. The elongase mutants and ceramide synthesis inhibitors enhance the toxicity of WT α-syn, A53T and E46K, which transit through the ER, but have a negligible effect on A30P, which does not transit through the ER. Disruption of ceramide-sphingolipid homeostasis in the ER dramatically enhances the toxicity of α-syn (WT, A53T, and E46K).

Indexed as

Acetyltransferasesalpha-SynucleinCeramidesEndoplasmic ReticulumMembrane ProteinsParkinson DiseaseProtein TransportSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSphingomyelinsAcetyltransferasesalpha-SynucleinCeramidesELO2 protein, S cerevisiaeMembrane ProteinsSaccharomyces cerevisiae ProteinsSphingomyelins

Identifiers

PMID21264320
PMCPMC3019226
OpenAlexW2074424295

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.