161 results found
    1. Neuroscience

    Filopodial dynamics and growth cone stabilization in Drosophila visual circuit development

    Mehmet Neset Özel et al.
    Long-term live imaging in intact developing Drosophila brains reveals a role for N-Cadherin-mediated fast filopodial dynamics and growth cone stabilization during neural circuit assembly.
    1. Cell Biology

    Dynamic recruitment of the curvature-sensitive protein ArhGAP44 to nanoscale membrane deformations limits exploratory filopodia initiation in neurons

    Milos Galic et al.
    Local inward plasma membrane deformations caused by actomyosin-dependent contraction trigger the dynamic recruitment of a curvature-sensitive actin-regulatory protein, which represents a receptor-independent auto-regulatory mechanism to control local actin polymerization dynamics at the plasma membrane.
    1. Developmental Biology

    Dynamic filopodia are required for chemokine-dependent intracellular polarization during guided cell migration in vivo

    Dana Meyen et al.
    Functional analysis of filopodia by specific interference with their formation and distribution reveals a critical role in conferring intracellular polarity and in controlling the dynamic properties of chemokine-guided cell migration in vivo.
    1. Neuroscience

    Neurexin and Neuroligin-based adhesion complexes drive axonal arborisation growth independent of synaptic activity

    William D Constance et al.
    Axonal arborisation growth is regulated by dynamic, focal localisations of Neurexin and Neuroligin that provide stability for filopodia, enabling a 'stick and grow'-based mechanism, wholly independent of synapse formation.
    1. Cell Biology
    2. Developmental Biology

    Mouse retinal cell behaviour in space and time using light sheet fluorescence microscopy

    Claudia Prahst et al.
    Improved 3D and 4D imaging of neurovascular processes across scales reveals new insights into eye disease mouse models and shows retinal vessels are significantly distorted using standard flat-mount confocal imaging.
    1. Developmental Biology
    2. Cell Biology

    Wnt/PCP controls spreading of Wnt/β-catenin signals by cytonemes in vertebrates

    Benjamin Mattes et al.
    Wnt signaling regulates its effective signaling range by controlling Wnt ligand transport on signaling filopodia within vertebrate tissues.
    1. Neuroscience

    Regulation of branching dynamics by axon-intrinsic asymmetries in Tyrosine Kinase Receptor signaling

    Marlen Zschätzsch et al.
    Asymmetric localization of the receptor EGFR within branches of axons is required to establish the precise wiring of neuronal networks within the Drosophila brain.
    1. Developmental Biology

    Cytoneme-mediated cell-cell contacts for Hedgehog reception

    Laura González-Méndez et al.
    Direct interaction between Hedgehog-sending and Hedgehog-receiving cytonemes is a fundamental mechanism for morphogen transfer and gradient establishment.
    1. Developmental Biology
    2. Neuroscience

    Retrograde Ret signaling controls sensory pioneer axon outgrowth

    Adam Tuttle et al.
    Long-range Ret receptor signaling promotes axon outgrowth and regulates growth cone dynamics in pioneer neurons by inducing transcriptional changes in Myosin-X expression.
    1. Cell Biology
    2. Neuroscience

    Neurotrophins induce fission of mitochondria along embryonic sensory axons

    Lorena Armijo-Weingart et al.
    Induction of the fission of mitochondria-populating sensory axons is shown to be a novel biological action of neurotrophins.

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