492 results found
    1. Cell Biology

    Exploring the role of macromolecular crowding and TNFR1 in cell volume control

    Parijat Biswas, Priyanka Roy ... Deepak Kumar Sinha
    Cells adapt to extracellular hypertonicities using regulatory volume increase (RVI), and TNFR1-mediated NFkB activation is indispensable for RVI, but the increased cytoplasmic macromolecular crowding can inhibit TNFR1 signaling and prevent RVI at severe hypertonicities.
    1. Neuroscience

    A Statistical Framework for Analysis of Trial-Level Temporal Dynamics in Fiber Photometry Experiments

    Gabriel Loewinger, Erjia Cui ... Francisco Pereira
    Revised
    Reviewed Preprint v2
    Updated
    • Important
    • Convincing
    1. Neuroscience

    More homogeneous capillary flow and oxygenation in deeper cortical layers correlate with increased oxygen extraction

    Baoqiang Li, Tatiana V Esipova ... Sava Sakadžić
    Resting-state capillary blood flow and oxygenation are more homogeneous in the deeper cortical layers, underpinning an important mechanism by which the microvascular network adapts to an increased local oxidative metabolism.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    HP1α is a chromatin crosslinker that controls nuclear and mitotic chromosome mechanics

    Amy R Strom, Ronald J Biggs ... Andrew D Stephens
    Micromanipulation experiments demonstrate that HP1α strengthens interphase and mitotic chromosome mechanics and maintains nuclear shape by chromatin crosslinking, separate from histone methylation.
    1. Cell Biology
    2. Physics of Living Systems

    Flagellar energetics from high-resolution imaging of beating patterns in tethered mouse sperm

    Ashwin Nandagiri, Avinash Satish Gaikwad ... Ranganathan Prabhakar
    Calculations of flagellar energetics from beating patterns in sperm reveal that internal dissipation by dynein motors and other passive structures within the flagellum significantly exceeds external hydrodynamic dissipation.
    1. Immunology and Inflammation

    Ascorbic acid supports ex vivo generation of plasmacytoid dendritic cells from circulating hematopoietic stem cells

    Anders Laustsen, Renée M van der Sluis ... Rasmus O Bak
    Probing of various culture conditions leads to fundamental advances in ex vivo production of plasmacytoid dendritic cells for use in immunotherapy.
    1. Computational and Systems Biology
    2. Neuroscience

    Basolateral amygdala oscillations enable fear learning in a biophysical model

    Anna Cattani, Don B Arnold ... Nancy Kopell
    Computational modeling suggests that the BLA is capable of producing the recorded LFP rhythms via interactions of interneuron subtypes, and that those rhythms may be necessary for associative learning.
    1. Structural Biology and Molecular Biophysics

    RNA tertiary structure and conformational dynamics revealed by BASH MaP

    Maxim Oleynikov, Samie R Jaffrey
    BASH MaP quantitatively reveals alternative RNA tertiary structures by enabling dimethyl sulfate to probe the presence of nucleobase interactions on the Watson-Crick and Hoogsteen faces of single RNA molecules.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A composition-dependent molecular clutch between T cell signaling condensates and actin

    Jonathon A Ditlev, Anthony R Vega ... Michael K Rosen
    Compositional changes alter actin binding by phase separated T cell signaling clusters, enabling cluster movement by distinct actin networks.

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