3,276 results found
    1. Developmental Biology
    2. Plant Biology

    Mechanical stress contributes to the expression of the STM homeobox gene in Arabidopsis shoot meristems

    Benoît Landrein et al.
    Mechanical stress promotes the expression of the homeobox gene and meristem master regulator STM, synergistically and independently from auxin depletion.
    1. Cell Biology
    2. Plant Biology

    Subcellular and supracellular mechanical stress prescribes cytoskeleton behavior in Arabidopsis cotyledon pavement cells

    Arun Sampathkumar et al.
    In the Arabidopsis epidermis, the internal mechanical stress of a cell competes with the external stress to control microtubule behavior, providing a framework to understand the mechanical feedbacks that underlie plant morphogenesis.
    1. Medicine

    Coronary plaque composition influences biomechanical stress and predicts plaque rupture in a morpho-mechanic OCT analysis

    Andrea Milzi et al.
    Assessing plaque biomechanics by optical coherence tomography highlights the importance of the disrupting effects of plaque stress, bringing stress concentrations as the prime movers of plaque rupture back into clinical practice.
    1. Physics of Living Systems

    Extracellular matrix in multicellular aggregates acts as a pressure sensor controlling cell proliferation and motility

    Monika E Dolega et al.
    Theoretical predictions and experiments on multicellular aggregates indicate that the extracellular matrix acts as a mechanical sensor, which regulates cell proliferation and migration in a three-dimensional environment.
    1. Computational and Systems Biology
    2. Developmental Biology

    Why plants make puzzle cells, and how their shape emerges

    Aleksandra Sapala et al.
    Puzzle-shape cells in the epidermis of many plants form due to a development constraint based on mechanical forces.
    1. Plant Biology

    A tension-adhesion feedback loop in plant epidermis

    Stéphane Verger et al.
    Tensile stress patterns in tissues are revealed by cell-cell adhesion defects; in turn, cell responses to supracellular tension require cell-cell adhesion.
    1. Cell Biology
    2. Developmental Biology

    Fibronectin is a smart adhesive that both influences and responds to the mechanics of early spinal column development

    Emilie Guillon et al.
    A fibronectin matrix constantly remodels to the area of highest mechanical stress, and the resulting fibronectin-mediated inter-tissue adhesion impedes neural tube convergence.
    1. Developmental Biology

    Spatial patterning of liver progenitor cell differentiation mediated by cellular contractility and Notch signaling

    Kerim B Kaylan et al.
    Mechanical stress plays a cooperative role with Notch in biliary differentiation of liver progenitors, supporting a model of liver development in which biomechanical cues are key inducers of cell fate.
    1. Cell Biology
    2. Neuroscience

    Genetic defects in β-spectrin and tau sensitize C. elegans axons to movement-induced damage via torque-tension coupling

    Michael Krieg et al.
    A conceptual framework and physical model shows how actin-spectrin networks and microtubule bundles can protect axons from mechanical stress.
    1. Cell Biology
    2. Physics of Living Systems

    Interplay of cell dynamics and epithelial tension during morphogenesis of the Drosophila pupal wing

    Raphaël Etournay et al.
    Autonomous patterns of cell contraction in the context of localized apical extracellular matrix constraints specify tissue stresses that reshape the wing epithelium.

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