1,392 results found
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Chromosome mis-segregation and cytokinesis failure in trisomic human cells

    Joshua M Nicholson et al.
    Aneuploidy can cause chromosome mis-segregation and specific cellular phenotypes driven by expression of genes on the extra chromosome.
    1. Cell Biology

    Centrosome age regulates kinetochore–microtubule stability and biases chromosome mis-segregation

    Ivana Gasic et al.
    The presence of cenexin at the old centrosome imposes a functional asymmetry on the mitotic spindle that impacts chromosome alignment and segregation.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Meiosis I chromosome segregation is established through regulation of microtubule–kinetochore interactions

    Matthew P Miller et al.
    Preventing premature interactions between microtubules and protein-based structures called kinetochores ensures that chromosomes are segregated by meiosis rather than mitosis in reproductive cells.
    1. Cancer Biology
    2. Stem Cells and Regenerative Medicine

    The asymmetrically segregating lncRNA cherub is required for transforming stem cells into malignant cells

    Lisa Landskron et al.
    Genetic analyses uncovered that the asymmetrically long non-coding RNA cherub is required for brain tumor growth.
    1. Cell Biology

    Probing the catalytic functions of Bub1 kinase using the small molecule inhibitors BAY-320 and BAY-524

    Anna P Baron et al.
    Chemical inhibition of Bub1 shows that the catalytic activity is not required for normal mitotic progression, but it makes chromosome segregation and cell proliferation more sensitive to the effects of the anti-cancer drug Paclitaxel.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    EGFR signaling promotes self-renewal through the establishment of cell polarity in Drosophila follicle stem cells

    Angela Castanieto et al.
    The specification of cell polarity is essential for self-renewal and the segregation of stem-cell and daughter-cell fates in an epithelial stem cell lineage.
    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. Developmental Biology
    2. Human Biology and Medicine

    Prolonged ovarian storage of mature Drosophila oocytes dramatically increases meiotic spindle instability

    Ethan J Greenblatt et al.
    Meiotic chromosome segregation in mature Drosophila oocytes is sensitive to prolonged quiescence, suggesting that human oocyte instability may result from storage of mature rather than primordial oocytes and be modifiable.
    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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A conserved histidine modulates HSPB5 structure to trigger chaperone activity in response to stress-related acidosis

    Ponni Rajagopal et al.
    Small decreases in pH associated with cellular stress conditions unleash a cryptic mode of client binding in a ubiquitously expressed human small heat shock protein that is more effective at delaying client aggregation.

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