Cited by 374Neuroscience and Neuropharmacology ResearchCellular transport and secretionAmino Acid Enzymes and Metabolism

A shared vesicular carrier allows synaptic corelease of GABA and glycine

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Wojcik, Sonja M., Katsurabayashi, Shutaro, Guillemin, Isabelle, Friauf, Eckhard, Rosenmund, Christian, Brose, Nils, Rhee, Jeong-Seop·2006·Neuron

Abstract

The type of vesicular transporter expressed by a neuron is thought to determine its neurotransmitter phenotype. We show that inactivation of the vesicular inhibitory amino acid transporter (Viaat, VGAT) leads to embryonic lethality, an abdominal defect known as omphalocele, and a cleft palate. Loss of Viaat causes a drastic reduction of neurotransmitter release in both GABAergic and glycinergic neurons, indicating that glycinergic neurons do not express a separate vesicular glycine transporter. This loss of GABAergic and glycinergic synaptic transmission does not impair the development of inhibitory synapses or the expression of KCC2, the K+ -Cl- cotransporter known to be essential for the establishment of inhibitory neurotransmission. In the absence of Viaat, GABA-synthesizing enzymes are partially lost from presynaptic terminals. Since GABA and glycine compete for vesicular uptake, these data point to a close association of Viaat with GABA-synthesizing enzymes as a key factor in specifying GABAergic neuronal phenotypes.

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Crossref · 10.1016/j.neuron.2006.04.016

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Authors
Wojcik, S. M., Katsurabayashi, S., Guillemin, I., Friauf, E., Rosenmund, C., Brose, N., & Rhee, J.-S.
Affiliations
  • Max Planck Institute of Experimental Medicine (DE)
  • Baylor College of Medicine (US)
  • University of Kaiserslautern (DE)
Corresponding author
Wojcik, Sonja M.
Venue
Neuron
Publisher
Elsevier BV
Published
2006-05
Volume
50
Issue
4
Pages
575-587
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2158404383
Cited by
374
References
59
Citations by year
2026: 6 · 2025: 13 · 2024: 11 · 2023: 9 · 2022: 17 · 2021: 22 · 2020: 14 · 2019: 20 · 2018: 24 · 2017: 16 · 2016: 23 · 2015: 18 · 2014: 22 · 2013: 25 · 2012: 28
FWCI
8.84
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • GRO (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (GK 845)
  • Max-Planck-Gesellschaft
  • Brown Foundation
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
Keywords
GABA, glycine, GABAergic neurons, glycinergic neurons, embryonic lethality, omphalocele, cleft palate, KCC2, inhibitory neurotransmission, GABA synthesis, presynaptic terminals
MeSH terms
K Cl- Cotransporters, Animals, Brain, gamma-Aminobutyric Acid, Glutamate Decarboxylase, Glycine, Isoenzymes, Membrane Potentials, Synaptic Transmission, Neurons, Phenotype, Spinal Cord, Synapses, Immunoblotting, Receptors, Glycine, Receptors, GABA, Mice, Knockout, Patch-Clamp Techniques, Symporters, Vesicular Inhibitory Amino Acid Transport Proteins, Mice

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