59 results found
    1. Cell Biology

    Cardiac ryanodine receptor distribution is dynamic and changed by auxiliary proteins and post-translational modification

    Parisa Asghari et al.
    Repositioning the type II ryanodine receptors on the sarcoplasmic reticulum membrane is a potential new mechanism regulating their function, and therefore the strength of cardiac contraction.
    1. Cell Biology

    Ryanodine receptor dispersion disrupts Ca2+ release in failing cardiac myocytes

    Terje R Kolstad et al.
    Experimental and mathematical modeling approaches identify a novel mechanism of heart failure, linking disrupted calcium homeostasis and impaired contractility of cardiacmyocytes to nanoscale reorganization of calcium release channels.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Kv2.1 mediates spatial and functional coupling of L-type calcium channels and ryanodine receptors in mammalian neurons

    Nicholas C Vierra et al.
    A potassium channel, as a nonconducting function, organizes compartmentalized neuronal calcium signaling microdomains via structural and functional coupling of plasma membrane and endoplasmic reticulum calcium channels.
    1. Medicine

    Identification of drug modifiers for RYR1-related myopathy using a multi-species discovery pipeline

    Jonathan R Volpatti et al.
    A multi-species chemical screening platform reveals a conserved role for p38 inhibition in modulating ryanodine receptor-related phenotypes and is adaptable to a range of neuromuscular disorders.
    1. Cell Biology

    Potassium dependent rescue of a myopathy with core-like structures in mouse

    M Gartz Hanson et al.
    A mouse model of human muscle myopathy is used to provide mechanistic insight, identify possible biomarkers of disease, and suggest possible therapeutic strategies to alleviate muscle weakness.
    1. Neuroscience

    Maintenance of homeostatic plasticity at the Drosophila neuromuscular synapse requires continuous IP3-directed signaling

    Thomas D James et al.
    Synapses employ distinct acute and chronic signaling processes in order to maintain physiologically appropriate levels of function.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Oxidative stress induces stem cell proliferation via TRPA1/RyR-mediated Ca2+ signaling in the Drosophila midgut

    Chiwei Xu et al.
    In response to tissue damage, reactive oxygen species can be sensed by cation channels TRPA1/RyR to cause increases of cytosolic Ca2+ in intestinal stem cells, activating Ras/MAPK activity and stimulating stem cell proliferation in Drosophila.
    1. Cell Biology

    KChIP3 coupled to Ca2+ oscillations exerts a tonic brake on baseline mucin release in the colon

    Gerard Cantero-Recasens et al.
    KChIP3 localisation by intracellular calcium oscillations controls mucin release from colonic goblet cells.
    1. Cell Biology
    2. Computational and Systems Biology

    Development, calibration, and validation of a novel human ventricular myocyte model in health, disease, and drug block

    Jakub Tomek et al.
    A computer model of human cardiomyocyte was produced and validated on independent datasets, overcoming shortcomings of its predecessors, also yielding broadly relevant insights and results on major ionic currents.
    1. Neuroscience

    Spontaneous neurotransmission signals through store-driven Ca2+ transients to maintain synaptic homeostasis

    Austin L Reese, Ege T Kavalali
    Individual neurons can adjust the strength of their synapses by using spontaneous calcium influx through NMDA receptors to trigger the release of additional calcium from intracellular stores, which can in turn be used to regulate protein synthesis.

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