Evidence map›Paper›PMID 30880001›Full record

ArticleDevelopmental cell2019

Maturation and Clearance of Autophagosomes in Neurons Depends on a Specific Cysteine Protease Isoform, ATG-4.2.

Sarah E Kargbo-Hill, Karlina J Kauffman, Mia Krout, Janet E Richmond, Thomas J Melia, Daniel A Colón-Ramos

Open access · bronzeAbstract read
In one paragraph

Article in Developmental cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
6.9field-weighted citation impact, top 2% 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

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 citations in OpenAlex.

  1. Guideline
  2. Microglia extract neuronal proteolytic organelles via skoupocytosis.bioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Dysregulation of autophagosome-mitochondria contacts contributes to autophagy dysfunction and neurodegeneration in tauopathy.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Autophagy-lysosomal pathway in neurodegeneration.Molecular neurodegeneration advances · 2026
    Review
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  7. Article
  8. Article
  9. Review
  10. Review
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  15. Presynaptic neurons self-tune by inversely coupling neurotransmitter release with the abundance of CaV2 voltage-gated CaProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
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  19. 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

6 authors at 3 institutions in 2 countries.

Sarah E Kargbo-HillDepartment of Neuroscience, Program in Cellular Neuroscience, Neurodegeneration and Repair, Yale University School of Medicine, New Haven, CT 06510, USA; Department of Cell Biology, Yale University School of Medicine, New Haven, CT 06510, USA.
Karlina J KauffmanDepartment of Cell Biology, Yale University School of Medicine, New Haven, CT 06510, USA.
Mia KroutDepartment of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA.
Janet E RichmondDepartment of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA.
Thomas J MeliaDepartment of Cell Biology, Yale University School of Medicine, New Haven, CT 06510, USA.
Daniel A Colón-RamosDepartment of Neuroscience, Program in Cellular Neuroscience, Neurodegeneration and Repair, Yale University School of Medicine, New Haven, CT 06510, USA; Department of Cell Biology, Yale University School of Medicine, New Haven, CT 06510, USA; Instituto de Neurobiología, Recinto de Ciencias Médicas, Universidad de Puerto Rico, 201 Blvd del Valle, San Juan 00901, Puerto Rico. Electronic address: daniel.colon-ramos@yale.edu.
Yale University · USUniversity of Illinois Chicago · USUniversity of Puerto Rico System · PR

Funding

Skill Development for Diverse Scientific Careers: A New Course Predoctoral Program in Cellular and Molecular BiologyT32GM007223 · NIGMS · YALE UNIVERSITY · PI BASERGA, SUSAN J · 1985 to 2019
$31.0M
Enhancing and expanding the CGC Strain CollectionP40OD010440 · OD · UNIVERSITY OF MINNESOTA · PI Ann E. Rougvie · 2012 to 2026
$7.5M
Regulation of Autophagosome Membrane Dynamics by the AtgB Family of ProteinsR01GM100930 · NIGMS · YALE UNIVERSITY · PI MELIA, THOMAS JAMES · 2013 to 2024
$5.4M
Cellular and molecular mechanisms that temporally and spatially restrict synapticR01NS076558 · NINDS · YALE UNIVERSITY · PI COLON-RAMOS, DANIEL A · 2012 to 2022
$4.1M
NIGMS NIH HHS T32 GM007223NIH HHS P40 OD010440NINDS NIH HHS R01 NS076558
6 · The paper itself

Abstract

In neurons, defects in autophagosome clearance have been associated with neurodegenerative disease. Yet, the mechanisms that coordinate trafficking and clearance of synaptic autophagosomes are poorly understood. Here, we use genetic screens and in vivo imaging in single neurons of C. elegans to identify mechanisms necessary for clearance of synaptic autophagosomes. We observed that autophagy at the synapse can be modulated in vivo by the state of neuronal activity, that autophagosomes undergo UNC-16/JIP3-mediated retrograde transport, and that autophagosomes containing synaptic material mature in the cell body. Through forward genetic screens, we then determined that autophagosome maturation in the cell body depends on the protease ATG-4.2, but not the related ATG-4.1, and that ATG-4.2 can cleave LGG-1/Atg8/GABARAP from membranes. Our studies revealed that ATG-4.2 is specifically necessary for the maturation and clearance of autophagosomes and that defects in transport and ATG-4.2-mediated maturation genetically interact to enhance abnormal accumulation of autophagosomes in neurons.

Indexed as

Adaptor Proteins, Signal TransducingAnimalsAutophagosomesAutophagyAutophagy-Related ProteinsCaenorhabditis elegansCaenorhabditis elegans ProteinsCysteine ProteasesMicrotubule-Associated ProteinsNeurodegenerative DiseasesNeuronsPhagosomesProtein IsoformsSignal TransductionSynapsesAdaptor Proteins, Signal TransducingAutophagy-Related ProteinsCaenorhabditis elegans ProteinsCysteine ProteasesMicrotubule-Associated ProteinsProtein Isoformsunc-16 protein, C elegansactivityATG4ATG-4.2autophagyclearancedegradationmaturationsynapsetransportUNC-16/JIP3

Identifiers

PMID30880001
PMCPMC6482087
OpenAlexW2921989942

What OpenQuestion holds

Textmetadata
LicenceTDM
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.