4,428 results found
    1. Chromosomes and Gene Expression

    Distinct modes of SMAD2 chromatin binding and remodeling shape the transcriptional response to NODAL/Activin signaling

    Davide M Coda et al.
    NODAL/Activin-induced SMAD2 binding directly drives remodeling of both open and closed chromatin and does not directly correlate with temporal patterns of gene expression upon prolonged signaling.
    1. Developmental Biology
    2. Neuroscience

    Retrograde fibroblast growth factor 22 (FGF22) signaling regulates insulin-like growth factor 2 (IGF2) expression for activity-dependent synapse stabilization in the mammalian brain

    Akiko Terauchi et al.
    Feedback signaling between the synapse and nucleus via FGF22 and IGF2 directs the activity-dependent stabilization of presynaptic terminals in the mouse hippocampus.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A composition-dependent molecular clutch between T cell signaling condensates and actin

    Jonathon A Ditlev et al.
    Compositional changes alter actin binding by phase separated T cell signaling clusters, enabling cluster movement by distinct actin networks.
    1. Stem Cells and Regenerative Medicine

    Tissue absence initiates regeneration through Follistatin-mediated inhibition of Activin signaling

    Michael A Gaviño et al.
    Flatworm regeneration of lost tissue relies on a mechanism distinct from that used for routine tissue turnover.
    1. Plant Biology

    Homeostasis of branched-chain amino acids is critical for the activity of TOR signaling in Arabidopsis

    Pengfei Cao et al.
    Despite BCAAs being de novo-synthesized in chloroplasts, TOR activation by BCAAs is conserved in plants and triggers a re-organization of actin and actin-associated endomembranes.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A Fyn biosensor reveals pulsatile, spatially localized kinase activity and signaling crosstalk in live mammalian cells

    Ananya Mukherjee et al.
    Unique biosensor design and protein-engineering enables direct visualization of the active form of Fyn kinase with high specificity, minimal perturbation and shows cellular signaling to be compartmentalized and pulsatile.
    1. Developmental Biology
    2. Neuroscience

    Synapse maintenance is impacted by ATAT-2 tubulin acetyltransferase activity and the RPM-1 signaling hub

    Melissa A Borgen et al.
    Genetic, developmental and pharmacological analysis in Caenorhabditis elegans demonstrate that ATAT-2 tubulin acetyltransferase activity regulates synapse maintenance by acting within the RPM-1 signaling network, but independent of the DLK-1 MAP3K.
    1. Immunology and Inflammation

    High mTOR activity is a hallmark of reactive natural killer cells and amplifies early signaling through activating receptors

    Antoine Marçais et al.
    Chronic engagement of Natural killer cell inhibitory receptors by MHC-I molecules maintains a high activity of the mTOR pathway allowing subsequent amplification of signaling through activating receptors upon acute stimulation.
    1. Neuroscience

    Microglial calcium signaling is attuned to neuronal activity in awake mice

    Anthony D Umpierre et al.
    Microglial processes engage calcium signaling in response to hyper- or hypo-active shifts in neuronal activity.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    WNT signaling memory is required for ACTIVIN to function as a morphogen in human gastruloids

    Anna Yoney et al.
    The requirement for WNT signaling in mesendoderm differentiation is temporally separate from that of ACTIVIN signaling and acts to switch the output of ACTIVIN/SMAD2 from pluripotency maintenance to mesendoderm patterning.

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