1,246 results found
    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. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Symmetry breaking in reconstituted actin cortices

    Enas Abu Shah, Kinneret Keren
    A reconstituted system has been developed that self-organizes into dynamic actin cortices capable of spontaneous polarization, similar to the initial cortical polarization observed in cells during embryogenesis and development.
    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

    Aurora A depletion reveals centrosome-independent polarization mechanism in Caenorhabditis elegans

    Kerstin Klinkert et al.
    Experiments reveal mechanisms through which Caenorhabditis elegans zygotes depleted of Aurora A or lacking centrosomes spontaneously establish two posterior PAR-2 domains, one at each pole, in a curvature-dependent manner.
    1. Physics of Living Systems

    Epithelial colonies in vitro elongate through collective effects

    Jordi Comelles et al.
    Spontaneous elongation of epithelial colonies is related to the orientation of the mean nematic cell elongation field, as shown and tested with experiments and theory.
    1. Cell Biology
    2. Developmental Biology

    Early asymmetric cues triggering the dorsal/ventral gene regulatory network of the sea urchin embryo

    Vincenzo Cavalieri, Giovanni Spinelli
    During early embryogenesis of the sea urchin, asymmetrical positioning of the dorsal/ventral organizer relies upon the suppression of organizer activities in dorsal blastomeres by the Hbox12 homeodomain-containing repressor.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Spatiotemporal mosaic self-patterning of pluripotent stem cells using CRISPR interference

    Ashley RG Libby et al.
    Dynamic control of intrinsic pluripotent multicellular self-organization to yield robust symmetry breaking patterns that recapitulate morphogenic processes associated with developmental events.
    1. Cell Biology

    Cell cycle entry triggers a switch between two modes of Cdc42 activation during yeast polarization

    Kristen Witte et al.
    Optogenetic control of Cdc42 activation during polarization of budding yeast demonstrates a cell cycle regulated switch between two distinct modes of positive feedback.
    1. Biochemistry and Chemical Biology

    A non-linear system patterns Rab5 GTPase on the membrane

    Alice Cezanne et al.
    Both protein-protein and protein-lipid interactions are essential for Rab5 symmetry breaking at the early endosome.
    1. Computational and Systems Biology
    2. Developmental Biology

    A multi-scale model for hair follicles reveals heterogeneous domains driving rapid spatiotemporal hair growth patterning

    Qixuan Wang et al.
    Regional differences in activator and inhibitor signals alter hair cycle pace across mouse skin and produce unique fur renewal 'landscapes', with fastest renewal on the ventrum and slowest renewal on the ear pinnae.

Refine your results by:

Type
Research categories