Evidence map›Paper›PMID 27539639›Full record

ArticleScientific reports2016

Parkinson disease-linked GBA mutation effects reversed by molecular chaperones in human cell and fly models.

Alvaro Sanchez-Martinez, Michelle Beavan, Matthew E Gegg, Kai-Yin Chau, Alexander J Whitworth, Anthony H V Schapira

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed
10.1field-weighted citation impact, top 1% 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

87 citing papers in PubMed, 159 citations in OpenAlex.

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  11. Mass spectrometry-based proteomics for biomarker discovery in theNeuroprotection (Chichester, England) · 2024
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  15. International journal of molecular sciences · 2024
    Review
  16. Lysosomal storage, impaired autophagy and innate immunity in Gaucher and Parkinson's diseases: insights for drug discovery.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
  17. Biochemical consequences ofNeural regeneration research · 2024
    Article
  18. Review
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  20. Review

27 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Alvaro Sanchez-MartinezDepartment of Biomedical Sciences, University of Sheffield, Sheffield, S10 2TN, UK.
Michelle BeavanDepartment of Clinical Neuroscience, Institute of Neurology, University College London, London NW3 2PF, UK.
Matthew E GeggDepartment of Clinical Neuroscience, Institute of Neurology, University College London, London NW3 2PF, UK.
Kai-Yin ChauDepartment of Clinical Neuroscience, Institute of Neurology, University College London, London NW3 2PF, UK.
Alexander J WhitworthDepartment of Biomedical Sciences, University of Sheffield, Sheffield, S10 2TN, UK.
Anthony H V SchapiraDepartment of Clinical Neuroscience, Institute of Neurology, University College London, London NW3 2PF, UK.
University College London · GBUniversity of Sheffield · GB

Funding

Resource Component: Acquisition, maintenance and distribution of Drosophila stocksP40OD018537 · OD · TRUSTEES OF INDIANA UNIVERSITY · PI Annette L. Parks · 2014 to 2026
$13.5M
European Research Council 309742Medical Research Council MC_UP_1501/1Medical Research Council MR/L501499/1Medical Research Council MR/M006646/1NIH HHS P40 OD018537Wellcome Trust
6 · The paper itself

Abstract

GBA gene mutations are the greatest cause of Parkinson disease (PD). GBA encodes the lysosomal enzyme glucocerebrosidase (GCase) but the mechanisms by which loss of GCase contributes to PD remain unclear. Inhibition of autophagy and the generation of endoplasmic reticulum (ER) stress are both implicated. Mutant GCase can unfold in the ER and be degraded via the unfolded protein response, activating ER stress and reducing lysosomal GCase. Small molecule chaperones that cross the blood brain barrier help mutant GCase refold and traffic correctly to lysosomes are putative treatments for PD. We treated fibroblast cells from PD patients with heterozygous GBA mutations and Drosophila expressing human wild-type, N370S and L444P GBA with the molecular chaperones ambroxol and isofagomine. Both chaperones increased GCase levels and activity, but also GBA mRNA, in control and mutant GBA fibroblasts. Expression of mutated GBA in Drosophila resulted in dopaminergic neuronal loss, a progressive locomotor defect, abnormal aggregates in the ER and increased levels of the ER stress reporter Xbp1-EGFP. Treatment with both chaperones lowered ER stress and prevented the loss of motor function, providing proof of principle that small molecule chaperones can reverse mutant GBA-mediated ER stress in vivo and might prove effective for treating PD.

Indexed as

MutationAmbroxolAnimalsDisease Models, AnimalDopaminergic NeuronsDrosophila melanogasterEndoplasmic ReticulumEndoplasmic Reticulum StressGlucosylceramidaseHumansImino PyranosesMolecular ChaperonesParkinson DiseaseAmbroxolGlucosylceramidaseImino PyranosesisofagomineMolecular Chaperones

Identifiers

PMID27539639
PMCPMC4990939
OpenAlexW2516366589

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.