Cited by 211Autophagy in Disease and TherapyCellular transport and secretionGenetics, Aging, and Longevity in Model Organisms

KIF1A/UNC-104 Transports ATG-9 to Regulate Neurodevelopment and Autophagy at Synapses

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Stavoe, Andrea K.H., Kargbo-Hill, Sarah E., Hall, David H., Colón-Ramos, Daniel A.·2016·Developmental Cell

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Abstract

Autophagy is a cellular degradation process important for neuronal development and survival. Neurons are highly polarized cells in which autophagosome biogenesis is spatially compartmentalized. The mechanisms and physiological importance of this spatial compartmentalization of autophagy in the neuronal development of living animals are not well understood. Here we determine that, in Caenorhabditis elegans neurons, autophagosomes form near synapses and are required for neurodevelopment. We first determine, through unbiased genetic screens and systematic genetic analyses, that autophagy is required cell autonomously for presynaptic assembly and for axon outgrowth dynamics in specific neurons. We observe autophagosome biogenesis in the axon near synapses, and this localization depends on the synaptic vesicle kinesin, KIF1A/UNC-104. KIF1A/UNC-104 coordinates localized autophagosome formation by regulating the transport of the integral membrane autophagy protein, ATG-9. Our findings indicate that autophagy is spatially regulated in neurons through the transport of ATG-9 by KIF1A/UNC-104 to regulate neurodevelopment.

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Crossref · 10.1016/j.devcel.2016.06.012

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  • Axonal autophagy is dependent on specialized enzymatic apparatuses, including the PINK1-PRKN complex for localized mitophagy, KIF1A/UNC-104 for autophagosome formation at the synapse, and the HTT-HAP1 complex and MAPK8IP1/JIP1 for retrograde transport of autophagosomes.

    “Axonal autophagy is dependent on specialized enzymatic apparatuses, including the PINK1-PRKN complex for localized mitophagy [24], KIF1A/UNC-104 for autophagosome formation at the synapse [22,25], and the HTT-HAP1 complex and MAPK8IP1/JIP1 for retrograde transport of autophagosomes [23,26].”

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Authors
Stavoe, A. K. H., Kargbo-Hill, S. E., Hall, D. H., & Colón-Ramos, D. A.
Affiliations
  • Yale University (US)
  • Albert Einstein College of Medicine (US)
Venue
Developmental Cell
Publisher
Elsevier BV
Published
2016-07
Volume
38
Issue
2
Pages
171-185
ISSN
1534-5807 (ISSN-L)
OpenAlex
W2462707751
Cited by
211
References
132
Citations by year
2026: 19 · 2025: 20 · 2024: 19 · 2023: 14 · 2022: 28 · 2021: 27 · 2020: 27 · 2019: 25 · 2018: 18 · 2017: 11 · 2016: 3
FWCI
17.82
Type
journal article
Language
en
Open access
Locations
  • Developmental Cell (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Science Foundation (DGE-1122492)
  • National Institutes of Health (OD 010943, R01NS076558, R24OD016474, T32-GM007223, U01HD075602)
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
autophagy, autophagosome formation, brain development, axon growth, Caenorhabditis elegans neurons
MeSH terms
Autophagy-Related Proteins, Animals, Autophagy, Axons, Membrane Proteins, Nerve Tissue Proteins, Neurons, Synapses, Cell Polarity, Caenorhabditis elegans, Caenorhabditis elegans Proteins, Animals, Genetically Modified, Neurogenesis

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