18 results found
    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. Computational and Systems Biology

    Periodic propagating waves coordinate RhoGTPase network dynamics at the leading and trailing edges during cell migration

    Alfonso Bolado-Carrancio et al.
    Different RhoA and Rac1 dynamics at the cell front and rear are coordinated through periodic GTPase waves, which define the minimal autonomous biochemical machinery necessary and sufficient for cell migration.
    1. Developmental Biology

    Distinct mesoderm migration phenotypes in extra-embryonic and embryonic regions of the early mouse embryo

    Bechara Saykali et al.
    At gastrulation, mesoderm arises as a migratory germ layer that will participate to both foetal and placental development through region-dependant adaptation of cytoskeleton composition, cell shape and migration mode.
    1. Cancer Biology
    2. Cell Biology

    Ral GTPases promote breast cancer metastasis by controlling biogenesis and organ targeting of exosomes

    Shima Ghoroghi et al.
    A combination of animal models reveal how the molecular mechanisms of exosome secretion (RalA/B-dependent) are linked to their cargo content and their function in breast cancer pre-metastatic niche formation.
    1. Neuroscience

    Astrocyte morphogenesis is dependent on BDNF signaling via astrocytic TrkB.T1

    Leanne M Holt et al.
    Brain-derived neurotrophic factor (BDNF)/TrkB.T1 signaling contributes to astrocyte morphological maturation, with implications for neuronal synaptogenesis and function and astrocyte functional maturation.
    1. Developmental Biology
    2. Neuroscience

    The adhesion-GPCR BAI1 shapes dendritic arbors via Bcr-mediated RhoA activation causing late growth arrest

    Joseph G Duman et al.
    The adhesion-GPCR BAI1 shapes dendritic arbors in the hippocampus by associating with Bcr late in development and stimulating its RhoA-GEF activity, resulting in dendritic growth arrest.
    1. Cancer Biology
    2. Cell Biology

    GPCR signaling inhibits mTORC1 via PKA phosphorylation of Raptor

    Jenna L Jewell et al.
    Protein kinase A (PKA) phosphorylates Raptor and inhibits mammalian target of rapamycin complex 1 (mTORC1) activity.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Cell Signaling: Uncovering the secret life of Rho GTPases

    Jenna A Perry, Amy Shaub Maddox
    New methods to directly visualize Rho GTPases reveal how a protein called RhoGDI regulates the activity of these 'molecular switches' at the plasma membrane.
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    1. Cell Biology

    A Rho signaling network links microtubules to PKD controlled carrier transport to focal adhesions

    Stephan A Eisler et al.
    The small GTPase Rho connects GPCR signaling with PKD activity at TGN membranes and consequently anterograde trafficking to focal adhesions.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Shigella entry unveils a calcium/calpain-dependent mechanism for inhibiting sumoylation

    Pierre Lapaquette et al.
    Shigella infection induces a calpain-mediated loss of SUMO conjugates that promotes bacterial entry.

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