Evidence map›Paper›PMID 34520759›Full record

ArticleThe Journal of biological chemistry2021

The AKT modulator A-443654 reduces α-synuclein expression and normalizes ER stress and autophagy.

Mandi Gandelman, Warunee Dansithong, Stephen C Kales, Sharan Paul, Gentrie Maag, Erika Aoyama, Alexey Zakharov, Ganesha Rai, Thomas Dexheimer, Brooke M Whitehill and 7 more

Open access · goldAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

14 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Stem Cell-Based Approaches in Parkinson's Disease Research.International journal of stem cells · 2025
    Review
  6. Brain communications · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. TRPV4-mediated CaFASEB bioAdvances · 2023
    Article
  12. Review
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  14. 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

17 authors at 3 institutions in 1 country.

Mandi GandelmanDepartment of Neurology, University of Utah, Salt Lake City, Utah, USA.
Warunee DansithongDepartment of Neurology, University of Utah, Salt Lake City, Utah, USA.
Stephen C KalesDepartment of Neurology, National Center for Advancing Translational Sciences (NCATS), Rockville, Maryland, USA.
Sharan PaulDepartment of Neurology, University of Utah, Salt Lake City, Utah, USA.
Gentrie MaagDepartment of Neurology, University of Utah, Salt Lake City, Utah, USA.
Erika AoyamaDepartment of Neurology, University of Utah, Salt Lake City, Utah, USA.
Alexey ZakharovDepartment of Neurology, National Center for Advancing Translational Sciences (NCATS), Rockville, Maryland, USA.
Ganesha RaiDepartment of Neurology, National Center for Advancing Translational Sciences (NCATS), Rockville, Maryland, USA.
Thomas DexheimerDepartment of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan, USA.
Brooke M WhitehillDepartment of Neurology, National Center for Advancing Translational Sciences (NCATS), Rockville, Maryland, USA.
Hongmao SunDepartment of Neurology, National Center for Advancing Translational Sciences (NCATS), Rockville, Maryland, USA.
Ajit JadhavDepartment of Neurology, National Center for Advancing Translational Sciences (NCATS), Rockville, Maryland, USA.
Anton SimeonovDepartment of Neurology, National Center for Advancing Translational Sciences (NCATS), Rockville, Maryland, USA.
Mark J HendersonDepartment of Neurology, National Center for Advancing Translational Sciences (NCATS), Rockville, Maryland, USA.
Duong P HuynhDepartment of Neurology, University of Utah, Salt Lake City, Utah, USA.
Stefan M PulstDepartment of Neurology, University of Utah, Salt Lake City, Utah, USA.
Daniel R ScolesDepartment of Neurology, University of Utah, Salt Lake City, Utah, USA. Electronic address: Daniel.Scoles@hsc.utah.edu.
National Center for Advancing Translational Sciences · USUniversity of Utah · USMichigan State University · US

Funding

Spinocerebellar Ataxia Type 2 Gene and Gene ProductR37NS033123 · NINDS · UNIVERSITY OF UTAH · PI PULST, STEFAN M. · 2014 to 2020
$3.6M
RNA Granules in Cerebellar NeurodegenerationR01NS097903 · NINDS · UNIVERSITY OF UTAH · PI SCOLES, DANIEL R · 2017 to 2021
$2.7M
Antisense Oligonucleotides for treating Spinocerebellar Ataxia Type 2U01NS103883 · NINDS · UNIVERSITY OF UTAH · PI PULST, STEFAN M., SCOLES, DANIEL R · 2018 to 2020
$1.9M
Characterization of ATXN2 as a target for ALS in SCA2 motor neuronsR21NS103009 · NINDS · UNIVERSITY OF UTAH · PI PULST, STEFAN M., SCOLES, DANIEL R · 2018 to 2019
$419k
NINDS NIH HHS R01 NS097903NINDS NIH HHS R21 NS103009NINDS NIH HHS R37 NS033123NINDS NIH HHS U01 NS103883
6 · The paper itself

Abstract

Accumulation of α-synuclein is a main underlying pathological feature of Parkinson's disease and α-synucleinopathies, for which lowering expression of the α-synuclein gene (SNCA) is a potential therapeutic avenue. Using a cell-based luciferase reporter of SNCA expression we performed a quantitative high-throughput screen of 155,885 compounds and identified A-443654, an inhibitor of the multiple functional kinase AKT, as a potent inhibitor of SNCA. HEK-293 cells with CAG repeat expanded ATXN2 (ATXN2-Q58 cells) have increased levels of α-synuclein. We found that A-443654 normalized levels of both SNCA mRNA and α-synuclein monomers and oligomers in ATXN2-Q58 cells. A-443654 also normalized levels of α-synuclein in fibroblasts and iPSC-derived dopaminergic neurons from a patient carrying a triplication of the SNCA gene. Analysis of autophagy and endoplasmic reticulum stress markers showed that A-443654 successfully prevented α-synuclein toxicity and restored cell function in ATXN2-Q58 cells, normalizing the levels of mTOR, LC3-II, p62, STAU1, BiP, and CHOP. A-443654 also decreased the expression of DCLK1, an inhibitor of α-synuclein lysosomal degradation. Our study identifies A-443654 and AKT inhibition as a potential strategy for reducing SNCA expression and treating Parkinson's disease pathology.

Indexed as

alpha-SynucleinAutophagyEndoplasmic Reticulum StressGene Expression RegulationHEK293 CellsHumansIndazolesIndolesParkinson DiseaseProto-Oncogene Proteins c-aktA 443654alpha-SynucleinIndazolesIndolesProto-Oncogene Proteins c-aktSNCA protein, humanA-443654AKTalpha-synuclein (α-synuclein)autophagyendoplasmic reticulum stress (ER stress)high-throughput screening (HTS)Parkinson diseaseSNCASTAU1staufen1

Identifiers

PMID34520759
PMCPMC8482485
OpenAlexW3200141367

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.