173 results found
    1. Cell Biology

    Curvature-induced expulsion of actomyosin bundles during cytokinetic ring contraction

    Junqi Huang et al.
    Cytokinetic actomyosin ring disassembly occurs through a novel mechanism in which the increased ring curvature, generated through contraction, itself promotes the disassembly process.
    1. Physics of Living Systems

    Active torque generation by the actomyosin cell cortex drives left–right symmetry breaking

    Sundar Ram Naganathan et al.
    The actomyosin cytoskeleton generates active chiral torques that lead to left-right asymmetry in C. elegans embryos.
    1. Cell Biology

    Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments

    Felix Spira et al.
    Asymmetric tension increase along the cell equator promotes self-organization of actomyosin into a partially aligned network during cytokinetic cleavage furrow ingression of vertebrate cells.
    1. Cell Biology
    2. Physics of Living Systems

    Centering and symmetry breaking in confined contracting actomyosin networks

    Niv Ierushalmi et al.
    Novel mechanisms for cellular centering and symmetry breaking involving persistent contractile actomyosin flows and their hydrodynamic interactions with the fluid cytosol are presented and studied using a minimal, reconstituted system.
    1. Physics of Living Systems

    Controlling contractile instabilities in the actomyosin cortex

    Masatoshi Nishikawa et al.
    Combining quantitative biological experiment and physical description of actomyosin cortex reveals a contractile instability in the cortex of C. elegans embryo, and its biochemical control in order to robustly drive morphogenetic events.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Assembly and positioning of actomyosin rings by contractility and planar cell polarity

    Ivonne M Sehring et al.
    Contractility wins over the polarity pathway in a tug-of-war to position a cytokinesis-like actomyosin ring at the equator of notochord cells.
    1. Developmental Biology
    2. Physics of Living Systems

    Cell lineage-dependent chiral actomyosin flows drive cellular rearrangements in early Caenorhabditis elegans development

    Lokesh G Pimpale et al.
    Developmentally controlled chiral counter-rotating actomyosin flows drive cell-lineage spindle skews and cell rearrangements during cytokinesis in early nematode development.
    1. Developmental Biology

    Actomyosin regulation by Eph receptor signaling couples boundary cell formation to border sharpness

    Jordi Cayuso et al.
    Boundary cell identity and sharpening of borders are coupled in hindbrain development since both are regulated by mechanical tension.
    1. Cell Biology
    2. Physics of Living Systems

    Morphogenetic degeneracies in the actomyosin cortex

    Sundar Ram Naganathan et al.
    Distinct molecular functions contribute to the same material property at larger scales leading to degenerate functionality.
    1. Cell Biology
    2. Developmental Biology

    Anisotropic organization of circumferential actomyosin characterizes hematopoietic stem cells emergence in the zebrafish

    Mylene Lancino et al.
    Emergence of hematopoietic stem cells from an aortic component is a unique phenomenon of cell extrusion, with no equivalent in cell biology, and which is adapted to environmental constraints exerted by endothelial cells and hemodynamics forces.

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