Evidence map›Paper›PMID 28178240›Full record

ArticleNature2017

C. elegans neurons jettison protein aggregates and mitochondria under neurotoxic stress.

Ilija Melentijevic, Marton L Toth, Meghan L Arnold, Ryan J Guasp, Girish Harinath, Ken C Nguyen, Daniel Taub, J Alex Parker, Christian Neri, Christopher V Gabel and 2 more

Abstract read
In one paragraph

Article in Nature, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 292 papers.

0numbers the graph read from it
0cells of the map it votes in
292citing papers in PubMed
–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

292 citing papers in PubMed.

  1. Review
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  5. Article
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  8. Regulation and roles of mammalian mitophagy.Nature reviews. Molecular cell biology · 2026
    Review
  9. Condensates on the Move: Midbody Remnants as Large, Translation-Competent Extracellular Vesicles.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
  10. Microglia extract neuronal proteolytic organelles via skoupocytosis.bioRxiv : the preprint server for biology · 2026
    Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Ilija MelentijevicDepartment of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
Marton L TothDepartment of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
Meghan L ArnoldDepartment of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
Ryan J GuaspDepartment of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
Girish HarinathDepartment of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.
Ken C NguyenDepartment of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
Daniel TaubDepartment of Physiology and Biophysics, Boston University School of Medicine, Boston, Massachusetts 02118, USA.
J Alex ParkerDépartement de Neurosciences, Université de Montréal CRCHUM, Montréal H2X 0A9, Canada.
Christian NeriCNRS, UMR 8256, Brain-C team, Paris, France, and Sorbonnes Universités, University Pierre and Marie Curie (UPMC) Univ Paris 06, Paris, France.
Christopher V GabelDepartment of Physiology and Biophysics, Boston University School of Medicine, Boston, Massachusetts 02118, USA.
David H HallDepartment of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
Monica DriscollDepartment of Molecular Biology and Biochemistry, Nelson Biological Laboratories, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA.

Funding

Center for C elegans AnatomyR24OD010943 · OD · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI DAVID H. HALL, Nathan Schroeder · 2012 to 2026
$9.6M
Enhancing and expanding the CGC Strain CollectionP40OD010440 · OD · UNIVERSITY OF MINNESOTA · PI Ann E. Rougvie · 2012 to 2026
$7.5M
UMDNJ TRAINING GRANT IN BIOTECHNOLOGYT32GM008339 · NIGMS · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI YARMUSH, MARTIN L · 1989 to 2019
$6.1M
Translational Neuroimaging CoreP30HD071593 · NICHD · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI WALKLEY, STEVEN UPSHAW · 2011 to 2015
$5.6M
Understanding the Exopher: A Novel Mechanism for Extrusion of Neurotoxic ContentsR01AG047101 · NIA · RUTGERS, THE STATE UNIV OF N.J. · PI DRISCOLL, MONICA A., GRANT, BARTH DEMIAN · 2013 to 2022
$4.2M
Molecular Determination of in vivo Cellular Calcium Signaling During Nerve DamageR01NS077929 · NINDS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI GABEL, CHRISTOPHER V · 2013 to 2017
$1.8M
Mechanisms modulating the maintenance of structural integrity in individual agingR01AG046358 · NIA · RUTGERS, THE STATE UNIV OF N.J. · PI DRISCOLL, MONICA A. · 2013 to 2017
$1.5M
NIA NIH HHS R01 AG046358NIA NIH HHS R01 AG047101NICHD NIH HHS P30 HD071593NIGMS NIH HHS T32 GM008339NIH HHS P40 OD010440NIH HHS R24 OD010943NINDS NIH HHS R01 NS077929
6 · The paper itself

Abstract

The toxicity of misfolded proteins and mitochondrial dysfunction are pivotal factors that promote age-associated functional neuronal decline and neurodegenerative disease. Accordingly, neurons invest considerable cellular resources in chaperones, protein degradation, autophagy and mitophagy to maintain proteostasis and mitochondrial quality. Complicating the challenges of neuroprotection, misfolded human disease proteins and mitochondria can move into neighbouring cells via unknown mechanisms, which may promote pathological spread. Here we show that adult neurons from Caenorhabditis elegans extrude large (approximately 4 μm) membrane-surrounded vesicles called exophers that can contain protein aggregates and organelles. Inhibition of chaperone expression, autophagy or the proteasome, in addition to compromising mitochondrial quality, enhances the production of exophers. Proteotoxically stressed neurons that generate exophers subsequently function better than similarly stressed neurons that did not produce exophers. The extruded exopher transits through surrounding tissue in which some contents appear degraded, but some non-degradable materials can subsequently be found in more remote cells, suggesting secondary release. Our observations suggest that exopher-genesis is a potential response to rid cells of neurotoxic components when proteostasis and organelle function are challenged. We propose that exophers are components of a conserved mechanism that constitutes a fundamental, but formerly unrecognized, branch of neuronal proteostasis and mitochondrial quality control, which, when dysfunctional or diminished with age, might actively contribute to pathogenesis in human neurodegenerative disease and brain ageing.

Indexed as

Protein AggregatesAgingAnimalsAutophagyCaenorhabditis elegansCell-Derived MicroparticlesCytoplasmMitochondriaMolecular ChaperonesNeurodegenerative DiseasesNeuronsNeuroprotectionOxidation-ReductionProteasome Endopeptidase ComplexMolecular ChaperonesProteasome Endopeptidase ComplexProtein Aggregates

Identifiers

PMID28178240
PMCPMC5336134

What OpenQuestion holds

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Registered trials

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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.