1,042 results found
    1. Cell Biology

    A novel checkpoint pathway controls actomyosin ring constriction trigger in fission yeast

    Tomás Edreira et al.
    In fission yeast cell wall stress triggers a cytokinesis blockage specifically in the onset of actomyosin ring constriction.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Methylated cis-regulatory elements mediate KLF4-dependent gene transactivation and cell migration

    Jun Wan et al.
    A new paradigm of DNA methylation mediated gene activation and chromatin remodeling provides a general framework to dissect the biological functions of DNA methylation readers and effectors.
    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. Stem Cells and Regenerative Medicine

    De-repression of the RAC activator ELMO1 in cancer stem cells drives progression of TGFβ-deficient squamous cell carcinoma from transition zones

    Heather A McCauley et al.
    A new mechanism connects the loss of TGFβ signaling with invasion and metastasis in highly malignant transition zone tumors.
    1. Cell Biology

    Human biallelic MFN2 mutations induce mitochondrial dysfunction, upper body adipose hyperplasia, and suppression of leptin expression

    Nuno Rocha et al.
    Specific human mitofusin 2 mutations induce selective upper body obesity with suppressed leptin expression and severe adipose mitochondrial dysfunction.
    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. Chromosomes and Gene Expression

    The MAP kinase pathway coordinates crossover designation with disassembly of synaptonemal complex proteins during meiosis

    Saravanapriah Nadarajan et al.
    Coordination between crossover designation and synaptonemal complex disassembly is executed via a conserved MAP kinase pathway and is critical for accurate chromosome segregation during meiosis.
    1. Cell Biology

    The RhoGAP activity of CYK-4/MgcRacGAP functions non-canonically by promoting RhoA activation during cytokinesis

    Donglei Zhang, Michael Glotzer
    Activation of the key regulator of cytokinesis, RhoA, involves an unexpected contribution by a RhoGAP domain.
    1. Cell Biology

    Microtubule plus-ends act as physical signaling hubs to activate RhoA during cytokinesis

    Vikash Verma, Thomas J Maresca
    MT plus-end-mediated recruitment of a cortical pool of ECT2 trigger RhoA activation upon contact, which results in localized contractility during cytokinesis.
    1. Developmental Biology

    Spatiotemporal recruitment of RhoGTPase protein GRAF inhibits actomyosin ring constriction in Drosophila cellularization

    Swati Sharma, Richa Rikhy
    The RhoGTPase domain containing protein GRAF recruits to the cleavage furrow during myosin II assembly to hydrolyze Rho-GTP and restrict actomyosin contractility for regulating the time of onset of constriction during Drosophila cellularization.

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