4,231 results found
    1. Developmental Biology
    2. Evolutionary Biology

    Long-distance communication by specialized cellular projections during pigment pattern development and evolution

    Dae Seok Eom et al.
    Cells of the xanthophore lineage form projections that allow them to communicate with other pigment cells during adult pigment pattern formation in zebrafish, but not in the closely-related pearl danio.
    1. Developmental Biology
    2. Cell Biology

    Direct visualization of a native Wnt in vivo reveals that a long-range Wnt gradient forms by extracellular dispersal

    Ariel M Pani, Bob Goldstein
    Free, extracellular dispersal of Wnt proteins generates a long-range gradient during animal development and is required for signaling.
    1. Developmental Biology

    Hedgehog signaling patterns the oral-aboral axis of the mandibular arch

    Jingyue Xu et al.
    SHH signaling acts through FOXF1/2 transcription factors and antagonizes BMP signaling to specify oral fate and pattern the oral-aboral axis of the mandibular arch to ensure proper formation of jaws.
    1. Developmental Biology

    Cytoneme-mediated cell-cell contacts for Hedgehog reception

    Laura González-Méndez et al.
    Direct interaction between Hedgehog-sending and Hedgehog-receiving cytonemes is a fundamental mechanism for morphogen transfer and gradient establishment.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Cytotoxic T cells swarm by homotypic chemokine signalling

    Jorge Luis Galeano Niño et al.
    Killer T cells swarm around tumour targets by accelerating the recruitment of distant T cells, which upon arrival and target engagement augment the chemotactic signal in a positive feedback loop.
    1. Computational and Systems Biology
    2. Developmental Biology

    Noise modulation in retinoic acid signaling sharpens segmental boundaries of gene expression in the embryonic zebrafish hindbrain

    Julian Sosnik et al.
    Direct measurements of retinoic acid using fluorescence lifetime imaging reveal a new role for cellular retinoic acid binding proteins in noise attenuation that is critical to sharpen hindbrain rhombomere boundaries.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Global, cell non-autonomous gene regulation drives individual lifespan among isogenic C. elegans

    Holly E Kinser et al.
    Expression of almost half of a library of fluorescent reporters distinguish long- from short-lived individual Caenorhabditis elegans, suggesting that organism-wide differences in gene expression drive future lifespan.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Evolution of asymmetric gamete signaling and suppressed recombination at the mating type locus

    Zena Hadjivasiliou, Andrew Pomiankowski
    Selection for asymmetric signalling between gametes explains the very origins of sexual asymmetry as seen in mating-types with morphologically similar but self-incompatible gametes.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    Time-resolved mapping of genetic interactions to model rewiring of signaling pathways

    Florian Heigwer et al.
    Genetic interaction analysis by combinatorial genetic perturbation and high-throughput imaging maps time- and context-dependent crosstalk between signaling pathways.
    1. Neuroscience

    A longitudinal study of Caenorhabditis elegans larvae reveals a novel locomotion switch, regulated by Gαs signaling

    Stanislav Nagy et al.
    C. elegans exhibits two distinct behavioural macro-states, active and quiet wakefulness, and protein kinase A regulates switching between these two states.

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