Evidence map›Paper›PMID 21909362›Full record

ArticlePloS one2011

High-content chemical and RNAi screens for suppressors of neurotoxicity in a Huntington's disease model.

Joost Schulte, Katharine J Sepp, Chaohong Wu, Pengyu Hong, J Troy Littleton

Abstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Therapeutic strategies targeting connexins.Nature reviews. Drug discovery · 2018
    Review
  9. Article
  10. Prion-Like Characteristics of Polyglutamine-Containing Proteins.Cold Spring Harbor perspectives in medicine · 2018
    Review
  11. Article
  12. High-content drug screening for rare diseases.Journal of inherited metabolic disease · 2017
    Review
  13. Pathogenic Huntington Alters BMP Signaling and Synaptic Growth through Local Disruptions of Endosomal Compartments.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  14. Article
  15. Review
  16. Review
  17. 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

5 authors.

Joost SchulteDepartment of Biology, Department of Brain and Cognitive Sciences, The Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America. jschulte@mit.edu
Katharine J Sepp
Chaohong Wu
Pengyu Hong
J Troy Littleton

Funding

CHARACTERIZATION OF THE DROSOPHILA SYNAPTOTAGMIN FAMILYR01NS040296 · NINDS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI LITTLETON, J. TROY · 2000 to 2024
$7.9M
Drosophila as an Experimental Model for EpilepsyR01NS043244 · NINDS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI LITTLETON, J. TROY · 2003 to 2012
$3.2M
Intelligent Interfaces for Interactive Analysis of High-Content Cellular ImagesR01EB007042 · NIBIB · BRANDEIS UNIVERSITY · PI HONG, PENGYU · 2007 to 2009
$519k
NIBIB NIH HHS R01 EB007042NINDS NIH HHS R01 NS040296NINDS NIH HHS R01 NS043244
6 · The paper itself

Abstract

To identify Huntington's Disease therapeutics, we conducted high-content small molecule and RNAi suppressor screens using a Drosophila primary neural culture Huntingtin model. Drosophila primary neurons offer a sensitive readout for neurotoxicty, as their neurites develop dysmorphic features in the presence of mutant polyglutamine-expanded Huntingtin compared to nonpathogenic Huntingtin. By tracking the subcellular distribution of mRFP-tagged pathogenic Huntingtin and assaying neurite branch morphology via live-imaging, we identified suppressors that could reduce Huntingtin aggregation and/or prevent the formation of dystrophic neurites. The custom algorithms we used to quantify neurite morphologies in complex cultures provide a useful tool for future high-content screening approaches focused on neurodegenerative disease models. Compounds previously found to be effective aggregation inhibitors in mammalian systems were also effective in Drosophila primary cultures, suggesting translational capacity between these models. However, we did not observe a direct correlation between the ability of a compound or gene knockdown to suppress aggregate formation and its ability to rescue dysmorphic neurites. Only a subset of aggregation inhibitors could revert dysmorphic cellular profiles. We identified lkb1, an upstream kinase in the mTOR/Insulin pathway, and four novel drugs, Camptothecin, OH-Camptothecin, 18β-Glycyrrhetinic acid, and Carbenoxolone, that were strong suppressors of mutant Huntingtin-induced neurotoxicity. Huntingtin neurotoxicity suppressors identified through our screen also restored viability in an in vivo Drosophila Huntington's Disease model, making them attractive candidates for further therapeutic evaluation.

Indexed as

Genes, SuppressorRNA InterferenceAlgorithmsAnimalsCells, CulturedDisease Models, AnimalDrosophila melanogasterHigh-Throughput Screening AssaysHumansHuntingtin ProteinHuntington DiseaseMutant ProteinsNerve Tissue ProteinsNeuritesNeuronsNeurotoxinsHTT protein, humanHuntingtin ProteinMutant ProteinsNerve Tissue ProteinsNeurotoxinsNuclear Proteins

Identifiers

PMID21909362
PMCPMC3166080

What OpenQuestion holds

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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.