388 results found
    1. Cell Biology

    pYtags enable spatiotemporal measurements of receptor tyrosine kinase signaling in living cells

    Payam E Farahani, Xiaoyu Yang ... Jared E Toettcher
    pYtags are novel biosensors that can be used to measure the activity of a receptor tyrosine kinase of interest in live cells with high spatiotemporal resolution and are applied to reveal rapid activity dynamics of EGFR/ErbB2 signaling.
    1. Developmental Biology

    Oriented clonal cell dynamics enables accurate growth and shaping of vertebrate cartilage

    Marketa Kaucka, Tomas Zikmund ... Igor Adameyko
    The clonal oriented cell dynamics enables directional expansion and accurate scaling of sheet-like or rod-like cartilaginous elements and uncouples the mechanisms of elongation from thickness or diameter control.
    1. Computational and Systems Biology
    2. Immunology and Inflammation

    Competitive binding of STATs to receptor phospho-Tyr motifs accounts for altered cytokine responses

    Stephan Wilmes, Polly-Anne Jeffrey ... Ignacio Moraga
    IL-27 exerts differential activation of STAT1 and STAT3 via IL-27Ra and GP130, respectively, leading to a kinetic decoupling of its gene expression program, which contributes to tune its immuno-modulatory activities.
    1. Physics of Living Systems

    Self-organized canals enable long-range directed material transport in bacterial communities

    Ye Li, Shiqi Liu ... Yilin Wu
    Mechanochemical coupling between interfacial force and biosurfactant kinetics can coordinate large-scale material transport in primitive life forms, suggesting a new principle to engineer self-organized microbial communities.
    1. Computational and Systems Biology

    Inferring characteristics of bacterial swimming in biofilm matrix from time-lapse confocal laser scanning microscopy

    Guillaume Ravel, Michel Bergmann ... Simon Labarthe
    A new mathematical method has been developed, implemented and validated for the analysis of time-lapse confocal laser scanning microscopy images to characterize the swimming behavior of bacterial swimmers moving in the exogenous matrix of pathogenic biofilms.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Cell-wall remodeling drives engulfment during Bacillus subtilis sporulation

    Nikola Ojkic, Javier López-Garrido ... Robert G Endres
    Imaging experiments and simulations reveal that the biophysical mechanism for force generation needed to engulf a forespore is based on coordinated cell wall synthesis and degradation.
    1. Genetics and Genomics
    2. Physics of Living Systems

    Coarsening dynamics can explain meiotic crossover patterning in both the presence and absence of the synaptonemal complex

    John A Fozard, Chris Morgan, Martin Howard
    Mathematical modelling, together with super-resolution imaging in Arabidopsis, demonstrates that a recently proposed coarsening model for meiotic crossover interference can explain the dynamic patterning of crossovers in many contexts, including in zyp1 and pch2 chromosome structure mutants.
    1. Cell Biology
    2. Physics of Living Systems

    Fluid mechanics of luminal transport in actively contracting endoplasmic reticulum

    Pyae Hein Htet, Edward Avezov, Eric Lauga
    The viscous hydraulics of contracting endoplasmic reticulum networks challenge common solute transport theories, suggesting the contraction of peripheral sheets as a plausible driving mechanism.
    1. Computational and Systems Biology
    2. Epidemiology and Global Health

    Emerging dynamics from high-resolution spatial numerical epidemics

    Olivier Thomine, Samuel Alizon ... Mircea Sofonea
    Countrywide agent-based simulations with building-level resolution reveal the importance of demographic repartition and population density on epidemic dynamics of respiratory infections.
    1. Neuroscience

    Efficient value synthesis in the orbitofrontal cortex explains how loss aversion adapts to the ranges of gain and loss prospects

    Jules Brochard, Jean Daunizeau
    Computational modeling shows how neural mechanisms for mitigating biological constraints (such as neurons’ limited firing range) may eventually result in complex though predictable irrational behavior.

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