2,668 results found
    1. Immunology and Inflammation

    The activation of IgM- or isotype-switched IgG- and IgE-BCR exhibits distinct mechanical force sensitivity and threshold

    Zhengpeng Wan, Xiangjun Chen ... Wanli Liu
    The B cell receptors of naïve B cells need higher levels of mechanical force to be fully activated than those of memory B cells.
    1. Physics of Living Systems

    Increasing evidence of mechanical force as a functional regulator in smooth muscle myosin light chain kinase

    Fabian Baumann, Magnus Sebastian Bauer ... Hermann Eduard Gaub
    Atomic force microscopy based single-molecule force spectroscopy of smooth muscle myosin light chain kinase strongly indicates the existence of a mechanically triggerable activation pathway analogous to its well-established biochemical regulation pathway via calcium-loaded calmodulin.
    1. Cell Biology
    2. Physics of Living Systems

    Force propagation between epithelial cells depends on active coupling and mechano-structural polarization

    Artur Ruppel, Dennis Wörthmüller ... Martial Balland
    Combining micropatterning, traction force microscopy, and optogenetics, it is shown that epithelial cells actively respond to mechanical signals from neighboring cells.
    1. Cell Biology

    Caveolae couple mechanical stress to integrin recycling and activation

    Fidel-Nicolás Lolo, Dácil María Pavón ... Miguel A del Pozo
    Caveolae regulate integrin mechanosensing by establishing a force threshold for activation and recycling.
    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, Alfonso Bueno-Orovio ... Blanca Rodriguez
    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
    2. Physics of Living Systems

    Tuning of feedforward control enables stable muscle force-length dynamics after loss of autogenic proprioceptive feedback

    Joanne C Gordon, Natalie C Holt ... Monica A Daley
    Running guinea fowl maintain stable running after loss of the stretch reflex in a major ankle extensor muscle, by increasing feedforward muscle activation to maintain ankle stiffness and work output.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Mechanical force induces mitochondrial fission

    Sebastian Carsten Johannes Helle, Qian Feng ... Benoît Kornmann
    Mechanically stimulating mitochondria causes them to divide via the recruitment of the mitochondrial fission machinery to the mechanically strained site, showing that intracellular organelles can be mechanoresponsive.
    1. Cell Biology

    Shear stress activates ADAM10 sheddase to regulate Notch1 via the Piezo1 force sensor in endothelial cells

    Vincenza Caolo, Marjolaine Debant ... David J Beech
    Cell protease and cell fate decisions are regulated by a bone fide force-sensor, the Piezo1 channel, and by this means achieve integration with the mechanical environment.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Myosin-based regulation of twitch and tetanic contractions in mammalian skeletal muscle

    Cameron Hill, Elisabetta Brunello ... Malcolm Irving
    The physiological contraction of skeletal muscle is controlled by structural changes in the thick filaments, establishing a new paradigm for developing potential treatments for muscle weakness.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Mechanosensitive pore opening of a prokaryotic voltage-gated sodium channel

    Peter R Strege, Luke M Cowan ... Arthur Beyder
    Force applied to the cell membrane reversibly changes a voltage-insensitive gating step of a prokaryotic voltage-gated sodium channel.

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