903 results found
    1. Cell Biology

    A disassembly-driven mechanism explains F-actin-mediated chromosome transport in starfish oocytes

    Philippe Bun et al.
    On entry to meiosis, chromosomes scattered in the large oocyte nucleus of starfish are collected by an F-actin network, which contracts by an unexpected, myosin-independent mechanism based on local assembly and global disassembly of actin filaments.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Quality control in oocytes by p63 is based on a spring-loaded activation mechanism on the molecular and cellular level

    Daniel Coutandin et al.
    p63 uses an intricate network of domain-domain interactions to control its function in long-term quality maintenance of resting oocytes.
    1. Cell Biology
    2. Developmental Biology

    Dual roles for ATP in the regulation of phase separated protein aggregates in Xenopus oocyte nucleoli

    Michael H Hayes et al.
    The equilibrium between solubility and aggregation of proteins in the nucleus is controlled by co-aggregates like RNA and the action of ATP as both an energy source and a destabilizing chemical agent.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Motility precedes egress of malaria parasites from oocysts

    Dennis Klug, Friedrich Frischknecht
    A surface protein triggers intra-oocyst motility of Plasmodium sporozoites to ensure parasite egress from oocysts.
    1. Immunology and Inflammation

    Circulating T cell-monocyte complexes are markers of immune perturbations

    Julie G Burel et al.
    Human blood contains T cell-monocyte complexes which are not technical artefacts but reflect true in vivo immune cell interactions.
    1. Cell Biology
    2. Immunology and Inflammation

    Acute exposure to apolipoprotein A1 inhibits macrophage chemotaxis in vitro and monocyte recruitment in vivo

    Asif J Iqbal et al.
    Mechanistic insights show how treatment with apoA1 is anti-inflammatory by rapidly disrupting macrophage chemotaxis and monocyte recruitment.
    1. Cell Biology
    2. Evolutionary Biology

    The regulation of oocyte maturation and ovulation in the closest sister group of vertebrates

    Shin Matsubara et al.
    Oocyte maturation and ovulation in the sister group of vertebrates, Ciona intestinalis Type A, are triggered by Ci-VP, the Ciona homolog of a typical neruopeptide, vasopressin.
    1. Cell Biology

    CYK-4 functions independently of its centralspindlin partner ZEN-4 to cellularize oocytes in germline syncytia

    Kian-Yong Lee et al.
    The CYK-4 subunit of the broadly conserved intercellular bridge component centralspindlin, but not its ZEN-4 subunit, is essential for the cytokinesis-like closure of intercellular bridges that cellularizes oocytes to separate them from germline syncytia.
    1. Developmental Biology

    Identification of PNG kinase substrates uncovers interactions with the translational repressor TRAL in the oocyte-to-embryo transition

    Masatoshi Hara et al.
    The threonine kinase controls maternal mRNA translation phosphorylate components of the translational machinery, including translational repressors, which appear to inactivate to promote the oocyte-to-embryo transition.
    1. Cell Biology
    2. Developmental Biology

    bicoid mRNA localises to the Drosophila oocyte anterior by random Dynein-mediated transport and anchoring

    Vítor Trovisco et al.
    The localisation of bicoid mRNA depends on its microtubule-independent anchoring at the oocyte anterior.

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