1,360 results found
    1. Medicine

    Clearance of senescent decidual cells by uterine natural killer cells in cycling human endometrium

    Paul J Brighton et al.
    While acute senescence of decidualizing cells drives the inflammatory response underpinning uterine receptivity, subsequent clearance by activated natural killer cells transiently rejuvenates the cycling endometrium, enabling transition into a gestational tissue upon embryo implantation.
    1. Computational and Systems Biology

    Phenotypic diversity and temporal variability in a bacterial signaling network revealed by single-cell FRET

    Johannes M Keegstra et al.
    Noise in a signaling network comprising thousands of molecules shapes diversity across cell populations and generates giant temporal fluctuations at the single-cell level.
    1. Cell Biology
    2. Developmental Biology

    Caenorhabditis elegans PIEZO channel coordinates multiple reproductive tissues to govern ovulation

    Xiaofei Bai et al.
    Depletion of the mechanosensitive ion channel PEZO-1 in C. elegans disrupts the sheath and spermathecae cells to disrupt oocyte ovulation, resulting in crushed oocytes.
    1. Chromosomes and Gene Expression

    A tudor domain protein, SIMR-1, promotes siRNA production at piRNA-targeted mRNAs in C. elegans

    Kevin I Manage et al.
    SIMR-1 acts downstream of the piRNA pathway to promote siRNA amplification by the Mutator complex and localizes to perinuclear foci distinct from Mutator foci, P granules and Z granules.
    1. Chromosomes and Gene Expression

    Live-cell imaging reveals enhancer-dependent Sox2 transcription in the absence of enhancer proximity

    Jeffrey M Alexander et al.
    Sox2 transcription is not correlated with spatial proximity of its essential regulatory enhancer in embryonic stem cells, suggesting gene transcription is not limited to periods of direct enhancer-promoter contact.
    1. Immunology and Inflammation

    Tissue-resident natural killer (NK) cells are cell lineages distinct from thymic and conventional splenic NK cells

    Dorothy K Sojka et al.
    Natural killer cells that were commonly thought to circulate around the body can actually reside in distinct tissues, such as in the liver, skin or uterus, and do not re-circulate.
    1. Cell Biology

    Polo-like kinase acts as a molecular timer that safeguards the asymmetric fate of spindle microtubule-organizing centers

    Laura Matellán et al.
    Molecular and cell biology analyses reveal novel roles of Polo-like kinases in establishing non-random segregation patterns of spindle-associated microtubule-organizing centers during mitosis, a phenomenon linked with replicative cell aging.
    1. Neuroscience

    Activity dynamics of amygdala GABAergic neurons during cataplexy of narcolepsy

    Ying Sun et al.
    Deep brain calcium imaging reveals the abnormal neuronal activity patterns of the amygdala GABAergic neurons in an animal model of human sleep disorder narcolepsy.
    1. Structural Biology and Molecular Biophysics

    Helix breaking transition in the S4 of HCN channel is critical for hyperpolarization-dependent gating

    Marina A Kasimova et al.
    The gating polarity of a voltage-gated ion channel is primarily determined by turn propensity of residues at a critical position in the middle of the S4 voltage-sensing helix.
    1. Ecology
    2. Evolutionary Biology

    Convergence between the microcosms of Southeast Asian and North American pitcher plants

    Leonora S Bittleston et al.
    Host characteristics drive the assembly of similar communities within the convergently evolved and geographically distant pitcher ecosystems of carnivorous pitcher plants.

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