131 results found
    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

    LIS1 determines cleavage plane positioning by regulating actomyosin-mediated cell membrane contractility

    Hyang Mi Moon et al.
    Novel insights into LIS1-dependent regulation of cell membrane contractility and cleavage axis specification identify a key molecular network regulating mitoses of neural progenitors and somatic cells during development.
    1. Developmental Biology
    2. Neuroscience

    Cannabinoid-induced actomyosin contractility shapes neuronal morphology and growth

    Alexandre B Roland et al.
    Cannabinoids inhibit neuronal expansion and growth through the rapid contraction of actomyosin.
    1. Developmental Biology

    Multiscale analysis of single and double maternal-zygotic Myh9 and Myh10 mutants during mouse preimplantation development

    Markus Frederik Schliffka et al.
    During mouse preimplantation development, the complete loss of actomyosin contractility abolishes cytokinesis but not apico-basal polarisation, lineage specification, or fluid accumulation, which are the critical steps to the formation of the blastocyst.
    1. Cancer Biology
    2. Cell Biology

    Rho-associated kinase (ROCK) function is essential for cell cycle progression, senescence and tumorigenesis

    Sandra Kümper et al.
    The Rho kinases ROCK1 and 2 act redundantly in regulating cell proliferation and their depletion causes cellular senescence.
    1. Cell Biology
    2. Developmental Biology

    Protein phosphatase 1 activity controls a balance between collective and single cell modes of migration

    Yujun Chen et al.
    Protein phosphatase 1 activity promotes cohesive collective cell migration by restricting actomyosin contractility to the periphery of the collective and maintaining proper cadherin–catenin complex protein levels at cell–cell junctions.
    1. Physics of Living Systems
    2. Developmental Biology

    Distinct mechanisms regulating mechanical force-induced Ca2+ signals at the plasma membrane and the ER in human MSCs

    Tae-Jin Kim et al.
    Deep penetration and transmission of mechanical force to regulate ER functions depends on not only the passive cytoskeletal support, but also the active actomyosin contractility, which is dispensable for mechanotransduction at the plasma membrane.
    1. Cell Biology
    2. Physics of Living Systems

    Distinct roles of nonmuscle myosin II isoforms for establishing tension and elasticity during cell morphodynamics

    Kai Weißenbruch et al.
    The mechanical response of adherent cells in structured environments is shown to be shaped by the intricate interplay between the three different isoforms of an essential molecular motor.
    1. Developmental Biology

    Spatiotemporal recruitment of RhoGTPase protein GRAF inhibits actomyosin ring constriction in Drosophila cellularization

    Swati Sharma, Richa Rikhy
    The RhoGTPase domain containing protein GRAF recruits to the cleavage furrow during myosin II assembly to hydrolyze Rho-GTP and restrict actomyosin contractility for regulating the time of onset of constriction during Drosophila cellularization.
    1. Cell Biology
    2. Developmental Biology

    Analysis of cellular behavior and cytoskeletal dynamics reveal a constriction mechanism driving optic cup morphogenesis

    María Nicolás-Pérez et al.
    High-resolution live imaging analysis shows a constriction mechanism that drives zebrafish optic cup morphogenesis and highlights the role of the extracellular matrix in transmitting tensions beyond the cellular level.

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