109 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Lamellipodin promotes actin assembly by clustering Ena/VASP proteins and tethering them to actin filaments

    Scott D Hansen, R Dyche Mullins
    Lamellipodin, an important regulator of cytoskeletal and assembly cell migration, enhances the activity of Ena/VASP family actin polymerases by clustering them on leading-edge membranes and tethering them to actin filaments.
    1. Cell Biology

    Loss of Ena/VASP interferes with lamellipodium architecture, motility and integrin-dependent adhesion

    Julia Damiano-Guercio et al.
    Ena/VASP proteins act as positive regulators of cell motility and are required for the formation of microspikes, as opposed to filopodia that can arise from distinct molecular mechanisms.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Release of cholesterol-rich particles from the macrophage plasma membrane during movement of filopodia and lamellipodia

    Xuchen Hu et al.
    Macrophages release 30-nm vesicular particles enriched in accessible cholesterol during cellular locomotion, a discovery that is likely relevant to cholesterol disposal by these cells.
    1. Cell Biology
    2. Developmental Biology

    Zebrafish Posterior Lateral Line primordium migration requires interactions between a superficial sheath of motile cells and the skin

    Damian E Dalle Nogare et al.
    Epithelial cells utilize a covering sheath of motile cells to migrate in confinement.
    1. Cell Biology
    2. Immunology and Inflammation

    Calcium influx through CRAC channels controls actin organization and dynamics at the immune synapse

    Catherine A Hartzell et al.
    By restricting actin polymerization to the perimeter of the immune synapse and promoting depolymerization, calcium influx drives centripetal actin flow, which confines CRAC channels and the endoplasmic reticulum to the synapse center.
    1. Cell Biology

    Actin-based protrusions of migrating neutrophils are intrinsically lamellar and facilitate direction changes

    Lillian K Fritz-Laylin et al.
    Neutrophil pseudopods are composed of multiple sheets that are inherently flat, protrude in three dimensions, and whose assembly correlates with cell turning.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Kindlin-2 cooperates with talin to activate integrins and induces cell spreading by directly binding paxillin

    Marina Theodosiou et al.
    Kindlin-2 co-operates with talin to activate fibronectin-binding integrins on fibroblasts and subsequently induces cell spreading by recruiting paxillin to small, peripheral nascent adhesions.
    1. Cell Biology
    2. Computational and Systems Biology

    An analysis toolbox to explore mesenchymal migration heterogeneity reveals adaptive switching between distinct modes

    Hamdah Shafqat-Abbasi et al.
    “Discontinuous” and “Continuous” migration modes are divergent mesenchymal migration strategies that arise spontaneously in parallel in an equilibrium modulated by cell-matrix attachment and actomyosin contractility.
    1. Cell Biology
    2. Developmental Biology

    YAP and TAZ regulate adherens junction dynamics and endothelial cell distribution during vascular development

    Filipa Neto et al.
    Endothelial YAP/TAZ shape the developing vasculature by orchestrating mechanical inputs with BMP signalling to promote junctional VE-Cadherin turnover and cellular rearrangements.
    1. Cell Biology
    2. Immunology and Inflammation

    Actin foci facilitate activation of the phospholipase C-γ in primary T lymphocytes via the WASP pathway

    Sudha Kumari et al.
    T cell receptor signaling is regulated by newly polymerized F-actin foci at the immunological synapse.

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