5,551 results found
    1. Neuroscience

    Regenerating hair cells in vestibular sensory epithelia from humans

    Ruth Rebecca Taylor, Anastasia Filia ... Andrew Forge
    Immunolabelling and morphological assessment, complemented by complete transcriptomic analysis, demonstrates that supporting cells can be induced to convert towards a hair cell-like phenotype in human vestibular sensory epithelia.
    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. Cancer Biology
    2. Physics of Living Systems

    Collective forces of tumor spheroids in three-dimensional biopolymer networks

    Christoph Mark, Thomas J Grundy ... Ben Fabry
    The forces that multicellular tumor aggregates exert on their environment lead to non-linear, scale-invariant tissue deformations far away from the tumor, which can be exploited to quantify its collective contractility.
    1. Evolutionary Biology

    How oscillating aerodynamic forces explain the timbre of the hummingbird’s hum and other animals in flapping flight

    Ben J Hightower, Patrick WA Wijnings ... David Lentink
    A first-principles acoustics model reveals how the acoustic spectrum generated by flapping wings originates from oscillating aerodynamic forces, and is validated by in vivo aerodynamic force measurements and acoustic holography.
    1. Physics of Living Systems

    Residual force enhancement is affected more by quadriceps muscle length than stretch amplitude

    Patrick Bakenecker, Tobias Weingarten ... Brent Raiteri
    Increasing muscle length, rather than increasing stretch amplitude, contributes more to residual force enhancement during submaximal voluntary contractions of the human quadriceps.
    1. Physics of Living Systems

    Muscle-specific economy of force generation and efficiency of work production during human running

    Sebastian Bohm, Falk Mersmann ... Adamantios Arampatzis
    During human running, the soleus muscle was found to operate as work generator under optimal conditions for work production (high force-length potential and enthalpy efficiency) while the vastus lateralis promoted tendon energy storage and economical force generation (high force-length-velocity potential).
    1. Cell Biology
    2. Developmental Biology

    Mechanical force regulates tendon extracellular matrix organization and tenocyte morphogenesis through TGFbeta signaling

    Arul Subramanian, Lauren Fallon Kanzaki ... Thomas Friedrich Schilling
    Perturbation of mechanical force at muscle attachments and its effects on tendon morphogenesis provides insights into the mechanisms underlying cellular responses to tensional force and resulting extracellular matrix production.
    1. Structural Biology and Molecular Biophysics

    Single molecule compression reveals intra-protein forces drive cytotoxin pore formation

    Daniel M Czajkowsky, Jielin Sun ... Zhifeng Shao
    Compressive force spectroscopy of single molecules reveals that intra-protein forces underlie the long-distance coordination of structural changes within a cytotoxin during pore formation.
    1. Developmental Biology
    2. Structural Biology and Molecular Biophysics

    Large, long range tensile forces drive convergence during Xenopus blastopore closure and body axis elongation

    David R Shook, Eric M Kasprowicz ... Raymond Keller
    Blastopore closure in Xenopus is driven by two morphogenic mechanisms that have strongly context dependent effects on tissue movement and that generate tensile force across tissues: convergent extension, as expected, and, unexpectedly, convergent thickening.
    1. Cell Biology

    Dynein–Dynactin–NuMA clusters generate cortical spindle-pulling forces as a multi-arm ensemble

    Masako Okumura, Toyoaki Natsume ... Tomomi Kiyomitsu
    Optogenetic reconstitution reveals core functional modules and architecture of the cortical force-generating machinery in human cells.

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