Evidence map›Paper›PMID 35086904›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2022

Pathogenic Mechanisms of Cytosolic and Membrane-Enriched α-Synuclein Converge on Fatty Acid Homeostasis.

Arati Tripathi, Heba Alnakhala, Elizabeth Terry-Kantor, Andrew Newman, Lei Liu, Thibaut Imberdis, Saranna Fanning, Silke Nuber, Nagendran Ramalingam, Dennis Selkoe and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 25 citations in OpenAlex.

  1. Elevation of Stearoyl-Coenzyme A Desaturase and Monounsaturated Fatty Acids in Parkinson's Disease Serum.Movement disorders : official journal of the Movement Disorder Society · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Parkinson disease is a fatty acidopathy.Nature reviews. Neurology · 2025
    Review
  6. Dysregulation of Monounsaturated Fatty Acids is Related to α-Synuclein in Multiple System Atrophy.Movement disorders : official journal of the Movement Disorder Society · 2025
    Article
  7. Article
  8. Article
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  10. Review
  11. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 1 institution in 1 country.

Arati TripathiAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115 atripathi3@bwh.harvard.edu udettmer@bwh.harvard.edu.ORCID 0000-0003-0108-2223
Heba AlnakhalaAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Elizabeth Terry-KantorAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Andrew NewmanAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Lei LiuAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Thibaut ImberdisAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Saranna FanningAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Silke NuberAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Nagendran RamalingamAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Dennis SelkoeAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Ulf DettmerAnn Romney Center for Neurologic Diseases, Department of Neurology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115.
Brigham and Women's Hospital · US

Funding

Elucidating the Biological Differences Between Distinct Fibrillar and Non-Fibrillar Alpha-Synuclein Inclusions in Human Stem-Cell ModelsR01NS109209 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI KHURANA, VIKRAM · 2020 to 2024
$4.5M
Biology of Native Alpha-Synuclein Tetramers in Parkinson's DiseaseRF1NS083845 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI SELKOE, DENNIS J · 2020 to 2020
$2.9M
Stabilizing native α-synuclein homeostasis to prevent insoluble α-synuclein aggregatesR01NS099328 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI DETTMER, ULF · 2017 to 2021
$1.9M
Biologically novel mouse models of PD with progressive synucleinopathy and early-onset tremor and motor deficits responsive to L-DOPAR01NS109510 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI NUBER, SILKE · 2019 to 2023
$1.9M
Biology of Native Alpha-Synuclein Tetramers in Parkinson's DiseaseR01NS083845 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI SELKOE, DENNIS J · 2014 to 2018
$1.8M
Biologically Novel Mouse Models of PD with Progressive Synucleinopathy and Early-Onset Tremor and Motor Deficits Responsive to L-DOPARF1NS109510 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI NUBER, SILKE · 2024 to 2024
$1.3M
Contrasting pathomechanisms of membrane versus cytosol alpha-synuclein excessR21NS121826 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI DETTMER, ULF · 2021 to 2021
$505k
NINDS NIH HHS R01 NS083845NINDS NIH HHS R01 NS099328NINDS NIH HHS R01 NS109209NINDS NIH HHS R01 NS109510NINDS NIH HHS R21 NS121826NINDS NIH HHS RF1 NS083845NINDS NIH HHS RF1 NS109510
6 · The paper itself

Abstract

α-Synuclein (αS) plays a key role in Parkinson's disease. Although Parkinson's disease is typically "sporadic," inherited αS missense mutations provide crucial insights into molecular mechanisms. Here, we examine two clinical mutants, E46K and G51D, which are both in the conserved N-terminus that mediates transient αS-membrane interactions. However, E46K increases and G51D decreases αS-membrane interactions. Previously, we amplified E46K via the 11-residue repeat motifs, creating "3K" (E35K+E46K+E61K). Here, we engineered these motifs to amplify G51D (V40D+G51D+V66D = "3D") and systematically compared E46K/3K versus G51D/3D. We found that G51D increased cytosolic αS in neural cells and 3D aggravates this. G51D, and 3D even more, reduced αS multimer-to-monomer (αS60:αS14) ratio. Both amplified variants caused cellular stress in rat primary neurons and reduced growth in human neuroblastoma cells. Importantly, both 3K- and 3D-induced stress was ameliorated by pharmacologically inhibiting stearoyl-CoA desaturase or by conditioning the cells in palmitic (16:0) or myristic (14:0) acid. SCD inhibition lowered lipid-droplet accumulation in both 3D- and 3K-expressing cells and benefitted G51D by normalizing multimer:monomer ratio, as reported previously for E46K. Our findings suggest that, despite divergent cytosol/membrane partitioning, both G51D and E46K neurotoxicity can be prevented by decreasing fatty-acid unsaturation as a common therapeutic approach.

Indexed as

alpha-SynucleinFatty AcidsParkinson DiseaseAnimalsCytosolHomeostasisRatsStearoyl-CoA Desaturasealpha-SynucleinFatty AcidsStearoyl-CoA Desaturasecytosolic excessfatty acidmembrane excessα-synuclein

Identifiers

PMID35086904
PMCPMC8916762
OpenAlexW4210298519

What OpenQuestion holds

Textmetadata
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.