993 results found
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Epithelial geometry regulates spindle orientation and progenitor fate during formation of the mammalian epidermis

    Kimberly Box et al.
    Early in mammalian epidermal development, basal epidermal progenitor cells utilize packing and three-dimensional geometry, rather than cortical polarity cues, to inform division orientation and progenitor cell fate.
    1. Neuroscience
    2. Physics of Living Systems

    A geometric attractor mechanism for self-organization of entorhinal grid modules

    Louis Kang, Vijay Balasubramanian
    The hierarchy of entorhinal grid cell modules with constant scale ratios can self-organize through a new geometrically organized attractor mechanism.
    1. Cell Biology
    2. Developmental Biology

    Cytoskeletal tension and Bazooka tune interface geometry to ensure fusion fidelity and sheet integrity during dorsal closure

    Piyal Taru Das Gupta, Maithreyi Narasimha
    Restoration of molecular and morphological symmetry and mechanical integrity following epithelial fusion relies on adaptive changes that are mediated by cytoskeletal tension and Bazooka dependent modulation of fusing interface geometry.
    1. Neuroscience

    Reconceiving the hippocampal map as a topological template

    Yuri Dabaghian et al.
    Empirical evidence suggests that the hippocampus constructs maps of spatial environments based on the relative locations of places (i.e., topology), rather than absolute distances and coordinates (i.e., geometry).
    1. Developmental Biology
    2. Physics of Living Systems

    Gene-free methodology for cell fate dynamics during development

    Francis Corson, Eric D Siggia
    Mathematical methods based on geometry that directly embody the developmental concepts of competency, commitment, and determination provide succinct descriptions of morphogenesis and allow quantitative predictions from fits to sparse genetic data in Caenorhabditis elegans.
    1. Structural Biology and Molecular Biophysics

    Geometry of antiparallel microtubule bundles regulates relative sliding and stalling by PRC1 and Kif4A

    Sithara Wijeratne, Radhika Subramanian
    Geometrical features of microtubule arrays regulate the collective activity of motor and non-motor proteins.
    1. Cell Biology

    Insights into centriole geometry revealed by cryotomography of doublet and triplet centrioles

    Garrett A Greenan et al.
    Cryo-electron tomography of mammalian and fly centrioles shows that the ninefold symmetry of centrioles is set by species-specific microtubule linkers.
    1. Neuroscience

    State-dependent geometry of population activity in rat auditory cortex

    Dmitry Kobak et al.
    Representation of sound lateralisation and intensity by neural population in the rat auditory cortex strongly depends on the brain state suggesting that the neural tuning to lateralisation is not hard-wired.
    1. Physics of Living Systems

    Somatosensory neurons integrate the geometry of skin deformation and mechanotransduction channels to shape touch sensing

    Alessandro Sanzeni et al.
    Nonlinear elasticity of skin tissues and somatosensory neural responses are combined to predict and test C. elegans processing of touch stimuli and modifications due to changes in the body mechanics.
    1. Cell Biology
    2. Developmental Biology

    Patterned cortical tension mediated by N-cadherin controls cell geometric order in the Drosophila eye

    Eunice HoYee Chan et al.
    N-cadherin at heterotypic contacts controls the level and asymmetric localisation of Myosin-II motor, thereby influencing cell shapes and cell packing.

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