86 results found
    1. Neuroscience

    Balance between BDNF and Semaphorins gates the innervation of the mammary gland

    Hadas Sar Shalom et al.
    The innervation of the mammary gland is controlled by opposing effects of neurotrophic and repulsive factors and, once trophic signaling is inhibited the repulsive factors, may promote axonal pruning.
    1. Developmental Biology
    2. Neuroscience

    The laminar organization of the Drosophila ellipsoid body is semaphorin-dependent and prevents the formation of ectopic synaptic connections

    Xiaojun Xie et al.
    The organization of layered/laminated axon projections in specific regions of the fruitfly central brain is regulated by short-range repulsive guidance and is critical for local inhibitory circuit formation and function.
    1. Developmental Biology
    2. Neuroscience

    Glial and neuronal Semaphorin signaling instruct the development of a functional myotopic map for Drosophila walking

    Durafshan Sakeena Syed et al.
    Signaling from glia and nerves regulate the development of axonal and dendritic motor neuron architecture, needed for walking in the fruit fly species Drosophila.
    1. Neuroscience

    Semaphorin 5A inhibits synaptogenesis in early postnatal- and adult-born hippocampal dentate granule cells

    Yuntao Duan et al.
    Mice that lack the autism susceptibility gene Semaphorin 5A show excess excitatory synapse formation in dentate granule neurons and also altered social behavior, adding to evidence that a surplus of synapses contributes to the behavioral changes observed in autism spectrum disorders.
    1. Developmental Biology
    2. Neuroscience

    Neuropilin-2/Semaphorin-3F-mediated repulsion promotes inner hair cell innervation by spiral ganglion neurons

    Thomas M Coate et al.
    The development of the mammalian cochlea undergoes a period of embryonic refinement in which the outer hair cell region repels incoming type I spiral ganglion neurons, thus ensuring these neurons instead form connections with inner hair cells.
    1. Developmental Biology
    2. Neuroscience

    Phosphodiesterase 4D acts downstream of Neuropilin to control Hedgehog signal transduction and the growth of medulloblastoma

    Xuecai Ge et al.
    Neuropilin integrates with Hedgehog signal transduction by a newly identified transducer to control cerebellar neurogenesis and medulloblastoma.
    1. Developmental Biology

    GIPC proteins negatively modulate Plexind1 signaling during vascular development

    Jorge Carretero-Ortega et al.
    Zebrafish mutants and human endothelial cell experiments reveal that GIPC family endocytic adaptors bind to the Semaphorin receptor PLEXIND1, a critical regulator of vascular development, to negatively modulate its signaling.
    1. Developmental Biology
    2. Neuroscience

    Venous endothelin modulates responsiveness of cardiac sympathetic axons to arterial semaphorin

    Denise M Poltavski et al.
    Second-order guidance, a novel mechanism by which an initial guidance cue controls expression of a second guidance receptor, is required for precise refinement of axon trajectories during PNS development.
    1. Computational and Systems Biology
    2. Developmental Biology

    Temporal modulation of collective cell behavior controls vascular network topology

    Esther Kur et al.
    Tissue-specific temporal regulators impinge on the VEGF/Delta-Notch pathway to vary tip cell selection pace yielding diverse densities of vascular network.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis for activation and non-canonical catalysis of the Rap GTPase activating protein domain of plexin

    Yuxiao Wang et al.
    The crystal structures of the intracellular part of the plexin receptor in the active dimer form, and its complex with a key downstream signalling protein Rap, provide insights into how plexin initiates a signalling cascade involved in axon guidance.

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