Evidence map›Paper›PMID 22357655›Full record

ArticleHuman molecular genetics2012

Suppression of α-synuclein toxicity and vesicle trafficking defects by phosphorylation at S129 in yeast depends on genetic context.

Vicente Sancenon, Sue-Ann Lee, Christina Patrick, Janice Griffith, Amy Paulino, Tiago F Outeiro, Fulvio Reggiori, Eliezer Masliah, Paul J Muchowski

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.9field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Positron Emission Tomography with [International journal of molecular sciences · 2024
    Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Decreased Vacuolar CaFrontiers in genetics · 2020
    Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. PhosphorylatedParkinson's disease · 2017
    Review
  18. Review
  19. Review
  20. 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

9 authors at 4 institutions in 4 countries.

Vicente SancenonGladstone Institute of Neurological Disease, 1650 Owens Street, San Francisco, CA 94158, USA.
Sue-Ann Lee
Christina Patrick
Janice Griffith
Amy Paulino
Tiago F Outeiro
Fulvio Reggiori
Eliezer Masliah
Paul J Muchowski
Gladstone Institutes · USUniversity of California San Diego · USUniversity Medical Center Utrecht · NLUniversity of Lisbon · PT

Funding

Tissue Culture CoreP01AG022074 · NIA · J. DAVID GLADSTONE INSTITUTES · PI MASLIAH, ELIEZER · 2003 to 2012
$27.0M
a-synuclein clearance strategies for the treatment of Lewy body disease.R37AG018440 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MASLIAH, ELIEZER · 2006 to 2014
$2.7M
Modifiers of Huntingtin and Alpha-synuclein ToxicityR01NS047237 · NINDS · UNIVERSITY OF WASHINGTON · PI MUCHOWSKI, PAUL J · 2004 to 2008
$1.8M
NIA NIH HHS AG022074NIA NIH HHS R37 AG018440NINDS NIH HHS R01NS047237
6 · The paper itself

Abstract

The aggregation of α-synuclein (αSyn) is a neuropathologic hallmark of Parkinson's disease and other synucleinopathies. In Lewy bodies, αSyn is extensively phosphorylated, predominantly at serine 129 (S129). Recent studies in yeast have shown that, at toxic levels, αSyn disrupts Rab homeostasis, causing an initial endoplasmic reticulum-to-Golgi block that precedes a generalized trafficking collapse. However, whether αSyn phosphorylation modulates trafficking defects has not been evaluated. Here, we show that constitutive expression of αSyn in yeast impairs late-exocytic, early-endocytic and/or recycling trafficking. Although members of the casein kinase I (CKI) family phosphorylate αSyn at S129, they attenuate αSyn toxicity and trafficking defects by an S129 phosphorylation-independent mechanism. Surprisingly, phosphorylation of S129 modulates αSyn toxicity and trafficking defects in a manner strictly determined by genetic background. Abnormal endosome morphology, increased levels of the endosome marker Rab5 and co-localization of mammalian CKI with αSyn aggregates are observed in brain sections from αSyn-overexpressing mice and human synucleinopathies. Our results contribute to evidence that suggests αSyn-induced defects in endocytosis, exocytosis and/or recycling of vesicles involved in these cellular processes might contribute to the pathogenesis of synucleinopathies.

Indexed as

alpha-SynucleinAnimalsCasein Kinase IDisease Models, AnimalEndoplasmic ReticulumHumansMiceMice, TransgenicNeuronsPhosphorylationProtein TransportYeastsalpha-SynucleinCasein Kinase I

Identifiers

PMID22357655
PMCPMC3349423
OpenAlexW2139737821

What OpenQuestion holds

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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.