678 results found
    1. Physics of Living Systems

    Cell-sized confinement controls generation and stability of a protein wave for spatiotemporal regulation in cells

    Shunshi Kohyama et al.
    A cell-sized fully confined space significantly controls the emergence and stability of a protein wave, resulting in intracellular spatiotemporal regulation driven by a reaction-diffusion mechanism.
    1. Cell Biology

    Spatiotemporal regulation of autophagy during Caenorhabditis elegans aging

    Jessica T Chang et al.
    Autophagic flux assays in the nematode Caenorhabditis elegans suggest that autophagy decreases during normal aging, whereas long-lived daf-2 and glp-1 mutants maintain autophagic capacity in distinct spatiotemporal-specific manners to extend lifespan.
    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. Biochemistry and Chemical Biology
    2. Cell Biology

    Light-regulated allosteric switch enables temporal and subcellular control of enzyme activity

    Mark Shaaya et al.
    Light-sensitive allosteric switch module, a broadly applicable protein engineering method, is used for the regulation of protein activity with tight temporal control and spatial precision.
    1. Cell Biology
    2. Neuroscience

    Miro1-dependent mitochondrial dynamics in parvalbumin interneurons

    Georgina Kontou et al.
    Cell imaging and electrophysiology in the mouse hippocampus reveal a crucial role for the spatiotemporal regulation of mitochondrial dynamics in PV+ interneurons on cell morphology, network activity, and behavior.
    1. Developmental Biology

    Notch signalling maintains Hedgehog responsiveness via a Gli-dependent mechanism during spinal cord patterning in zebrafish

    Craig T Jacobs, Peng Huang
    Genetic analyses combining photoconvertible cell signalling reporters with gain- and loss-of function manipulations reveal a novel role for Notch signalling in controlling Hedgehog response in neural progenitor cells.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Extraction of active RhoGTPases by RhoGDI regulates spatiotemporal patterning of RhoGTPases

    Adriana E Golding et al.
    Through visualization of directly-labeled RhoGTPase both in vitro and in vivo, RhoGDI is found to spatiotemporally regulate RhoGTPase activity through the extraction of active RhoGTPase.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Dynamic subcellular localization of a respiratory complex controls bacterial respiration

    François Alberge et al.
    The localization of respiratory complexes in the cell membrane emerges as a critical factor for controlling respiration in bacteria.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Signaling diversity enabled by Rap1-regulated plasma membrane ERK with distinct temporal dynamics

    Jeremiah Keyes et al.
    An individual extracellular signal regulates multiple cellular actions through differences in the temporal dynamics of spatially distinct populations of the central signaling enzyme, extracellular-signal regulated kinase.
    1. Neuroscience

    TrpML-mediated astrocyte microdomain Ca2+ transients regulate astrocyte–tracheal interactions

    Zhiguo Ma, Marc R Freeman
    Astrocyte microdomain calcium transients are mediated by TrpML, stimulated by ROS and tyramine, and mediate astrocyte–tracheal interactions in CNS gas exchange.

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