4,073 results found
    1. Neuroscience

    Myosin V functions as a vesicle tether at the plasma membrane to control neurotransmitter release in central synapses

    Dario Maschi et al.
    Synaptic vesicles undergo reversible tethering at the plasma membrane which is activity- and myosin V- dependent.
    1. Neuroscience

    The readily-releasable pool dynamically regulates multivesicular release

    Jada H Vaden et al.
    The number of neurotransmitter vesicles released into the synaptic cleft is regulated by the size of the readily-releasable pool upstream of release probability.
    1. Cell Biology
    2. Neuroscience

    Fast retrieval and autonomous regulation of single spontaneously recycling synaptic vesicles

    Jeremy Leitz, Ege T Kavalali
    Spontaneous fusion of vesicles at synapses is regulated independently of fusion triggered by action potentials, adding to evidence that the two types of fusion have distinct functions.
    1. Neuroscience

    Ultrafast endocytosis at Caenorhabditis elegans neuromuscular junctions

    Shigeki Watanabe et al.
    Optogenetics has revealed that synaptic vesicles can be recycled extremely rapidly in nematodes, indicating that existing models for how synapses 'reload' may need to be revised.
    1. Neuroscience

    Optical detection of three modes of endocytosis at hippocampal synapses

    Natali L Chanaday, Ege T Kavalali
    Single synaptic vesicle imaging shows that kinetically distinct endocytic pathways are differentially regulated by calcium and temperature, and influence the fidelity of synaptic vesicle protein retrieval.
    1. Microbiology and Infectious Disease

    NSF-mediated disassembly of on- and off-pathway SNARE complexes and inhibition by complexin

    Ucheor B Choi et al.
    NSF is part of a membrane trafficking quality control system that disassembles both properly formed and off-pathway SNARE complexes, and the disassembly activity may be regulated by complexin.
    1. Developmental Biology
    2. Neuroscience

    Robo2 regulates synaptic oxytocin content by affecting actin dynamics

    Savani Anbalagan et al.
    Real-time monitoring of oxytocin-loaded vesicles and synaptic actin dynamics in zebrafish reveal that Slit3-Robo2-Cdc42 signalling maintains steady-state levels of mature oxytocin neuropeptide readily primed to be secreted upon physiological demand.
    1. Neuroscience

    Spatiotemporal dynamics of multi-vesicular release is determined by heterogeneity of release sites within central synapses

    Dario Maschi, Vitaly A Klyachko
    Release site heterogeneity represents a previously unknown level of structural and functional organization within individual active zones in central synapses, which determines the spatiotemporal dynamics of multi-vesicular release.
    1. Neuroscience

    Synapse-specific and compartmentalized expression of presynaptic homeostatic potentiation

    Xiling Li et al.
    Genetic and electrophysiological analyses reveal that the mechanisms orchestrating the induction and expression of homeostatic plasticity are compartmentalized and operate with exquisite specificity on both sides of the synapse.
    1. Neuroscience

    Frequency-dependent mobilization of heterogeneous pools of synaptic vesicles shapes presynaptic plasticity

    Frédéric Doussau et al.
    The mobilization or silencing of two heterogeneous pools of synaptic vesicles via different frequencies probably enables granule cell to Purkinje cell synapses to better discriminate between the high-rate code of sensory information and background noise.

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