Evidence map›Paper›PMID 25432537›Full record

ArticleHuman molecular genetics2015

PPAR gamma activation is neuroprotective in a Drosophila model of ALS based on TDP-43.

Archi Joardar, Judith Menzl, Taylor C Podolsky, Ernesto Manzo, Patricia S Estes, Sarah Ashford, Daniela C Zarnescu

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
4.1field-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

47 citing papers in PubMed, 72 citations in OpenAlex.

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  7. A Novel Drosophila-based Drug Repurposing Platform Identified Fingolimod As a Potential Therapeutic for TDP-43 Proteinopathy.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
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  9. A nerve-wracking buzz: lessons fromFrontiers in aging neuroscience · 2023
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  10. Downstream Effects of Mutations inInternational journal of molecular sciences · 2022
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  11. Altered Bioenergetics and Metabolic Homeostasis in Amyotrophic Lateral Sclerosis.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Review
  12. Review
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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

7 authors at 1 institution in 1 country.

Archi JoardarDepartment of Molecular and Cellular Biology.
Judith MenzlDepartment of Molecular and Cellular Biology.
Taylor C PodolskyDepartment of Molecular and Cellular Biology.
Ernesto ManzoDepartment of Molecular and Cellular Biology.
Patricia S EstesDepartment of Molecular and Cellular Biology.
Sarah AshfordDepartment of Molecular and Cellular Biology.
Daniela C ZarnescuDepartment of Molecular and Cellular Biology, Department of Neuroscience Department of Neurology, University of Arizona, Tucson, AZ 85721, USA zarnescu@email.arizona.edu.
University of Arizona · US

Funding

GRADUATE TRAINING IN BIOCHEMISTRY AND MOLECULAR BIOLOGYT32GM008659 · NIGMS · UNIVERSITY OF ARIZONA · PI CAPALDI, ANDREW PAUL, WEINERT, TED A. · 1997 to 2019
$5.3M
Howard Hughes Medical Institute 52006942NIGMS NIH HHS T32 GM008659
6 · The paper itself

Abstract

Amyotrophic Lateral Sclerosis (ALS) is a progressive neuromuscular disease for which there is no cure. We have previously developed a Drosophila model of ALS based on TDP-43 that recapitulates several aspects of disease pathophysiology. Using this model, we designed a drug screening strategy based on the pupal lethality phenotype induced by TDP-43 when expressed in motor neurons. In screening 1200 FDA-approved compounds, we identified the PPARγ agonist pioglitazone as neuroprotective in Drosophila. Here, we show that pioglitazone can rescue TDP-43-dependent locomotor dysfunction in motor neurons and glia but not in muscles. Testing additional models of ALS, we find that pioglitazone is also neuroprotective when FUS, but not SOD1, is expressed in motor neurons. Interestingly, survival analyses of TDP or FUS models show no increase in lifespan, which is consistent with recent clinical trials. Using a pharmacogenetic approach, we show that the predicted Drosophila PPARγ homologs, E75 and E78, are in vivo targets of pioglitazone. Finally, using a global metabolomic approach, we identify a set of metabolites that pioglitazone can restore in the context of TDP-43 expression in motor neurons. Taken together, our data provide evidence that modulating PPARγ activity, although not effective at improving lifespan, provides a molecular target for mitigating locomotor dysfunction in TDP-43 and FUS but not SOD1 models of ALS in Drosophila. Furthermore, our data also identify several 'biomarkers' of the disease that may be useful in developing therapeutics and in future clinical trials.

Indexed as

Amyotrophic Lateral SclerosisAnimalsDisease Models, AnimalDNA-Binding ProteinsDrosophilaDrosophila ProteinsHumansMotor NeuronsNeurogliaNeuroprotective AgentsPioglitazonePPAR gammaReceptors, Cytoplasmic and NuclearRNA-Binding Protein FUSThiazolidinedionesTranscription FactorsDNA-Binding ProteinsDrosophila ProteinsEip75B protein, DrosophilaEip78C protein, drosophilaFUS protein, humanNeuroprotective AgentsPioglitazonePPAR gammaReceptors, Cytoplasmic and NuclearRNA-Binding Protein FUSTBPH protein, DrosophilaThiazolidinedionesTranscription Factors

Identifiers

PMID25432537
PMCPMC4381760
OpenAlexW2141622401

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.