Cited by 256Cellular transport and secretionNeuroscience and Neuropharmacology ResearchExtracellular vesicles in disease

Calcium Dependence of Exo- and Endocytotic Coupling at a Glutamatergic Synapse

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Hosoi, Nobutake, Holt, Matthew, Sakaba, Takeshi·2009·Neuron

Abstract

The mechanism coupling exocytosis and endocytosis remains to be elucidated at central synapses. Here, we show that the mechanism linking these two processes is dependent on microdomain-[Ca2+](i) similar to that which triggers exocytosis, as well as the exocytotic protein synaptobrevin/VAMP. Furthermore, block of endocytosis has a limited, retrograde action on exocytosis, delaying recruitment of release-ready vesicles and enhancing short-term depression. This effect sets in so rapidly that it cannot be explained by the nonavailability of recycled vesicles. Rather, we postulate that perturbation of a step linking exocytosis and endocytosis temporarily prevents new vesicles from docking at specialized sites for exocytosis.

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Crossref · 10.1016/j.neuron.2009.06.010

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  • Several previous studies suggest that endocytosis becomes slower when neurons are treated with the high-affinity calcium chelator EGTA, which abolishes asynchronous release.

    “Consistent with this notion, several previous studies suggest that endocytosis becomes slower when neurons are treated with the high-affinity calcium chelator EGTA, which abolishes asynchronous release77–81.”

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Authors
Hosoi, N., Holt, M., & Sakaba, T.
Affiliations
  • Max Planck Institute for Biophysical Chemistry (DE)
  • Max Planck Society (DE)
Corresponding author
Sakaba, Takeshi
Venue
Neuron
Publisher
Elsevier BV
Published
2009-07
Volume
63
Issue
2
Pages
216-229
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2063618791
Cited by
256
References
1
Citations by year
2026: 3 · 2025: 3 · 2024: 7 · 2023: 15 · 2022: 17 · 2021: 7 · 2020: 15 · 2019: 14 · 2018: 16 · 2017: 22 · 2016: 16 · 2015: 20 · 2014: 20 · 2013: 18 · 2012: 22
FWCI
9.31
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • Lirias (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
Keywords
exocytosis, endocytosis, synaptic vesicle recycling, calcium microdomains, glutamatergic synapses, short-term depression, vesicle docking
MeSH terms
Animals, Brain Stem, Calcium, Endocytosis, Exocytosis, Synaptic Transmission, Neurons, Organ Culture Techniques, Synapses, Rats, Wistar, Presynaptic Terminals, Glutamic Acid, Excitatory Postsynaptic Potentials, Calcium Signaling, Dynamins, R-SNARE Proteins, Rats

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