420 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, Pierre Recho ... Di Jiang
    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. Genetics and Genomics

    Mitochondrial MICOS complex genes, implicated in hypoplastic left heart syndrome, maintain cardiac contractility and actomyosin integrity

    Katja Birker, Shuchao Ge ... Rolf Bodmer
    Genes of the MICOS complex are a major candidate pathway to be potentially linked to defects in cardiomyocyte growth and differentiation in Hypoplastic left heart syndrome (HLHS), and relevant for elucidating the polygenic nature of HLHS and other CHDs.
    1. Computational and Systems Biology

    A tug of war between filament treadmilling and myosin induced contractility generates actin rings

    Qin Ni, Kaustubh Wagh ... Garegin A Papoian
    Actin networks form clusters under myosin-induced contractility, while high actin filament treadmilling speed can reshape actin networks into ring-like structures with lower mechanical energy.
    1. Cell Biology

    The DWORF micropeptide enhances contractility and prevents heart failure in a mouse model of dilated cardiomyopathy

    Catherine A Makarewich, Amir Z Munir ... Eric N Olson
    Cardiac-specific overexpression of a recently discovered micropeptide, DWORF, enhances calcium cycling and contractility in the heart and rescues the heart failure phenotype of a genetic mouse model of dilated cardiomyopathy.
    1. Physics of Living Systems

    Condensation tendency and planar isotropic actin gradient induce radial alignment in confined monolayers

    Tianfa Xie, Sarah R St Pierre ... Yubing Sun
    Radial alignment in confined cell monolayers with isotropic actin network is found to be mediated by the condensation tendency and tissue-scale actin gradient.
    1. Developmental Biology

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

    Hyang Mi Moon, Simon Hippenmeyer ... Anthony Wynshaw-Boris
    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. Structural Biology and Molecular Biophysics

    STIM1-dependent peripheral coupling governs the contractility of vascular smooth muscle cells

    Vivek Krishnan, Sher Ali ... Scott Earley
    STIM1 regulates the contractility of blood vessels and blood pressure by organizing membrane contact sites and ion channel activity in vascular smooth muscle cells in a manner that is independent of its canonical function in store-operated Ca2+entry.
    1. Developmental Biology
    2. Neuroscience

    Cannabinoid-induced actomyosin contractility shapes neuronal morphology and growth

    Alexandre B Roland, Ana Ricobaraza ... Zsolt Lenkei
    Cannabinoids inhibit neuronal expansion and growth through the rapid contraction of actomyosin.
    1. Cell Biology
    2. Developmental Biology

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

    Eunice HoYee Chan, Pruthvi Chavadimane Shivakumar ... Pierre-François Lenne
    N-cadherin at heterotypic contacts controls the level and asymmetric localisation of Myosin-II motor, thereby influencing cell shapes and cell packing.
    1. Cell Biology

    A disassembly-driven mechanism explains F-actin-mediated chromosome transport in starfish oocytes

    Philippe Bun, Serge Dmitrieff ... Péter Lénárt
    On entry to meiosis, chromosomes scattered in the large oocyte nucleus of starfish are collected by an F-actin network, which contracts by an unexpected, myosin-independent mechanism based on local assembly and global disassembly of actin filaments.

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