352 results found
    1. Cell Biology
    2. Developmental Biology

    Human embryo polarization requires PLC signaling to mediate trophectoderm specification

    Meng Zhu et al.
    Functional analyses of in vitro fertilized, preimplanation human embryos reveal that the first lineage segregation depends on cell polarization signaling that is regulated by Phospholipase C (PLC) activity.
    1. Developmental Biology

    Y chromosome functions in mammalian spermatogenesis

    Jeremie Subrini, James Turner
    The mammalian Y chromosome has become specialised for male fertility, but exact functions of individual Y genes remain poorly understood, a knowledge gap that new approaches can bridge.
    1. Medicine
    2. Stem Cells and Regenerative Medicine

    Adult stem cell-derived complete lung organoid models emulate lung disease in COVID-19

    Courtney Tindle et al.
    An integrated stem cell-based disease modeling and computational approach demonstrates how proximal airway epithelium is critical for SARS-CoV-2 infectivity and distal alveolar cells are critical for simulating the host responses.
    1. Neuroscience

    Urocortin-3 neurons in the mouse perifornical area promote infant-directed neglect and aggression

    Anita E Autry et al.
    Genetic and functional manipulations uncover urocortin-3-expressing neurons in the perifornical area of the hypothalamus as a dedicated circuit component for the expression of infant-directed neglect and aggression in mice.
    1. Cell Biology
    2. Genetics and Genomics

    Analysis of meiosis in Pristionchus pacificus reveals plasticity in homolog pairing and synapsis in the nematode lineage

    Regina Rillo-Bohn et al.
    Investigation of meiosis in the nematode Pristionchus pacificus has illuminated evolutionary variation in this essential aspect of reproduction and established a new model for future study.
    1. Neuroscience

    Sex-specific pubertal and metabolic regulation of Kiss1 neurons via Nhlh2

    Silvia Leon et al.
    The transcription factor Nhlh2 is a marker of arcuate Kiss1 neurons in adulthood that activates the promotor activity of Kiss1 and Tac3 genes and controls puberty onset and the response of KNDy neurons to leptin in male mice.
    1. Chromosomes and Gene Expression

    Linker histone H1.8 inhibits chromatin binding of condensins and DNA topoisomerase II to tune chromosome length and individualization

    Pavan Choppakatla et al.
    Linker histone H1.8 shapes mitotic chromosomes by tuning the number and size of condensin-dependent DNA loops and suppressing condensin and DNA topoisomerase II-dependent individualization.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Uniparental nuclear inheritance following bisexual mating in fungi

    Vikas Yadav et al.
    Discovery of a novel mode of sexual reproduction, termed pseudosexual reproduction, in fungi where both parents are required for mating but only one contributes to the meiotic progeny, similar to hybridogenesis in animals.
    1. Chromosomes and Gene Expression

    Combinations of maternal-specific repressive epigenetic marks in the endosperm control seed dormancy

    Hikaru Sato et al.
    Analyses of cell type-specific data show that the maternal alleles of genes related to establishing and breaking seed dormancy are suppressed by different combinations of epigenetic marks in the endosperm of Arabidopsis.
    1. Cell Biology
    2. Developmental Biology

    Augmin deficiency in neural stem cells causes p53-dependent apoptosis and aborts brain development

    Ricardo Viais et al.
    Non-centrosomal microtubule nucleation mediated by augmin is essential for neural progenitor mitosis and survival, and thus brain development.

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