748 results found
    1. Neuroscience

    Presynaptic stochasticity improves energy efficiency and helps alleviate the stability-plasticity dilemma

    Simon Schug, Frederik Benzing, Angelika Steger
    Presynaptic plasticity in simulated neural networks with a simple biologically plausible learning rule improves metabolic efficiency and lifelong learning capabilities.
    1. Neuroscience

    Associative learning drives longitudinally graded presynaptic plasticity of neurotransmitter release along axonal compartments

    Aaron Stahl, Nathaniel C Noyes ... Seth M Tomchik
    Experience alters neurotransmitter release from different axonal compartments in different ways, allowing a set of neurons to coherently modulate behavior through diverse actions on multiple downstream circuits.
    1. Neuroscience

    An antagonism between Spinophilin and Syd-1 operates upstream of memory-promoting presynaptic long-term plasticity

    Niraja Ramesh, Marc Escher ... Stephan J Sigrist
    An antagonism between Spinophilin and Syd-1 converge on presynaptic actin to control presynaptic plasticity and memory consolidation in the Drosophila mushroom body.
    1. Neuroscience

    Homeostatic plasticity fails at the intersection of autism-gene mutations and a novel class of common genetic modifiers

    Özgür Genç, Joon-Yong An ... Graeme W Davis
    Forward genetic screens define a novel genetic landscape by which diverse, unrelated autism risk genes may converge to commonly affect the robustness of synaptic transmission.
    1. Neuroscience

    RETRACTED: Protein kinase C is a calcium sensor for presynaptic short-term plasticity

    Diasynou Fioravante, YunXiang Chu ... Wade G Regehr
    Genetic and electrophysiology experiments provide the first direct evidence that protein kinase C is a calcium-sensing protein in post-tetanic potentiation, a form of synaptic plasticity that supports short-term memory.
    1. Neuroscience

    Retinoic acid-gated BDNF synthesis in neuronal dendrites drives presynaptic homeostatic plasticity

    Shruti Thapliyal, Kristin L Arendt ... Lu Chen
    Synaptic silencing-induced homeostatic enhancement of presynaptic glutamate release is mediated by the postsynaptic retinoic acid-dependent brain-derived neurotrophic factor (BDNF) synthesis from dendritically targeted BDNF transcripts, leading to retrograde activation of presynaptic tropomyosin receptor kinase B receptors.
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    1. Cell Biology
    2. Neuroscience

    Action potential-coupled Rho GTPase signaling drives presynaptic plasticity

    Shataakshi Dube O'Neil, Bence Rácz ... Scott H Soderling
    Proteomic and genetic analysis discovers a new cytoskeletal mechanism of presynaptic short-term plasticity common across neuronal cell types.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Mechanistic insights into neurotransmitter release and presynaptic plasticity from the crystal structure of Munc13-1 C1C2BMUN

    Junjie Xu, Marcial Camacho ... Josep Rizo
    The crystal structure of a large C-terminal fragment of Munc13-1 provides a key framework to understand how Munc13-1 mediates neurotransmitter release and presynaptic plasticity.
    1. Neuroscience

    A postsynaptic PI3K-cII dependent signaling controller for presynaptic homeostatic plasticity

    Anna G Hauswirth, Kevin J Ford ... Graeme W Davis
    A screen encompassing all kinases and phosphatases reveals that PI3K-cII, PI3K-cIII and Rab11-dependent recycling endosomes comprise a novel, postsynaptic 'signaling controller' that is part of an integrated, trans-synaptic signaling system necessary for presynaptic homeostatic plasticity.
    1. Neuroscience

    Molecular mechanisms that stabilize short term synaptic plasticity during presynaptic homeostatic plasticity

    Jennifer M Ortega, Özgür Genç, Graeme W Davis
    Genetic and electrophysiological experiments define how homeostatic signaling stabilizes both the gain and short-term dynamic properties of neurotransmitter release, ensuring that synaptic information transfer remains robust to external perturbation.

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