576 results found
    1. Cell Biology
    2. Neuroscience

    A proline-rich motif on VGLUT1 reduces synaptic vesicle super-pool and spontaneous release frequency

    Xiao Min Zhang, Urielle François ... Etienne Herzog
    In mammals, the vesicular glutamate transporter 1 acquired a proline-rich sequence that negatively regulates the spontaneous release of glutamate by reducing the exchange of synaptic vesicles along the axon.
    1. Neuroscience

    Vglut2-based glutamatergic signaling in central noradrenergic neurons is dispensable for normal breathing and chemosensory reflexes

    Yuan Chang, Savannah Lusk ... Russell S Ray
    Vglut2-based glutamatergic signaling in central noradrenergic neurons is dispensable for baseline breathing and hypercapnic, hypoxic chemosensory reflexes, which challenges the current understanding of central noradrenergic neurons in breathing control.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    The dual role of chloride in synaptic vesicle glutamate transport

    Roger Chang, Jacob Eriksen, Robert H Edwards
    Whole endosome recording shows that chloride interacts with vesicular glutamate transporters as both allosteric activator and permeant ion, and although the mode of permeation differs, chloride and glutamate use a related conduction pathway.
    1. Neuroscience

    Paradoxical network excitation by glutamate release from VGluT3+ GABAergic interneurons

    Kenneth A Pelkey, Daniela Calvigioni ... Chris J McBain
    Glutamate cotransmission from a subset of cortical GABAergic interneurons can promote network hyperexcitability.
    1. Cell Biology
    2. Neuroscience

    Presynaptic morphology and vesicular composition determine vesicle dynamics in mouse central synapses

    Laurent Guillaud, Dimitar Dimitrov, Tomoyuki Takahashi
    In central synapses, the mobility and supply of synaptic vesicles are determined by two independent biological factors: the morphological and structural organization of nerve terminals and the molecular signature of vesicles.
    1. Neuroscience

    An essential role of acetylcholine-glutamate synergy at habenular synapses in nicotine dependence

    Silke Frahm, Beatriz Antolin-Fontes ... Ines Ibañez-Tallon
    Local elimination of acetylcholine synthesis in habenular neurons demonstrates a key role for vesicular synergy and neurotransmitter co-release in nicotine dependence.
    1. Cell Biology
    2. Neuroscience

    Astrocytes refine cortical connectivity at dendritic spines

    W Christopher Risher, Sagar Patel ... Cagla Eroglu
    Spines with multiple excitatory contacts are potential sites for competition between thalamic and cortical axons, which is regulated by the astrocytes through the secreted synaptogenic protein hevin.
    1. Neuroscience

    Local processing in neurites of VGluT3-expressing amacrine cells differentially organizes visual information

    Jen-Chun Hsiang, Keith P Johnson ... Daniel Kerschensteiner
    Neurite arbors of VGluT3-expressing amacrine cells (VG3-ACs) process visual information locally uniformly detecting object motion while varying in contrast preferences; and in spite of extensive overlap between arbors of neighboring cells population activity in the VG3-AC plexus encodes stimulus positions with subcellular precision.
    1. Neuroscience

    Behavioral role of PACAP signaling reflects its selective distribution in glutamatergic and GABAergic neuronal subpopulations

    Limei Zhang, Vito S Hernandez ... Lee E Eiden
    Placing the PACAP/PAC1 signaling within glutamate/GABA cell type and subregional contexts in mouse brain reveals its conspicuous role for sensorimotor circuit interaction through modulating neuronal plasticity.
    1. Neuroscience

    Defined neuronal populations drive fatal phenotype in a mouse model of Leigh syndrome

    Irene Bolea, Alejandro Gella ... Albert Quintana
    Glutamatergic brainstem neurons drive motor and respiratory deficits, and GABAergic basal ganglia neurons cause hypothermia and fatal epileptic events, in a model of mitochondrial disease.

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