525 results found
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Bacterial flagella grow through an injection-diffusion mechanism

    Thibaud T Renault et al.
    Single cell, fluorescent microscopy and mathematical modeling reveal how bacterial flagella dynamically assemble outside the cell.
    1. Cell Biology

    The fibronectin synergy site re-enforces cell adhesion and mediates a crosstalk between integrin classes

    Maria Benito-Jardón et al.
    The fibronectin synergy site is only required in vivo when forces exceed or αvβ3 integrin levels fall below certain thresholds.
    1. Cell Biology
    2. Developmental Biology

    Distinct cellular and molecular mechanisms for β3 adrenergic receptor-induced beige adipocyte formation

    Yuwei Jiang et al.
    The activation of beige adipocyte thermogenesis by cold temperatures and β3-adrenergic receptor agonists induce beige adipocyte formation, function and perdurance.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Cellular localization of the cell cycle inhibitor Cdkn1c controls growth arrest of adult skeletal muscle stem cells

    Despoina Mademtzoglou et al.
    Ablation of the Cdkn1c cell cycle inhibitor leads to defective muscle stem cell dynamics and myogenic potential, while progressive cytoplasmic to nuclear cellular localization of the Cdkn1c protein regulates growth arrest.
    1. Neuroscience

    Arcuate nucleus and lateral hypothalamic CART neurons in the mouse brain exert opposing effects on energy expenditure

    Aitak Farzi et al.
    CART exerts differential metabolic effects in response to activation of neurons of the Arc, where CART suppresses energy expenditure, while it enforces the reward characteristics of the LHA.
    1. Neuroscience

    Functional limb muscle innervation prior to cholinergic transmitter specification during early metamorphosis in Xenopus

    Francois M Lambert et al.
    Molecular labeling, electrophysiology and calcium imaging have revealed a novel switching of neurotransmitter at the frog neuromuscular junction where motoneurons transiently release glutamate before acetylcholine at synapses on developing hindlimb muscles at the onset of metamorphosis.
    1. Neuroscience

    Live calcium and mitochondrial imaging in the enteric nervous system of Parkinson patients and controls

    An-Sofie Desmet et al.
    In contrast to previous post-mortem or fixed tissue histochemical reports, live calcium and mitochondrial imaging data suggest that the enteric nervous system is not generally affected in Parkinson's disease patients.
    1. Developmental Biology
    2. Neuroscience

    Pioneer neurog1 expressing cells ingress into the otic epithelium and instruct neuronal specification

    Esteban Hoijman et al.
    Quantitative 4D image analysis identifies a group of cells which enter into the otic primordium during morphogenesis and instructs neuronal specification.
    1. Developmental Biology

    A lncRNA fine tunes the dynamics of a cell state transition involving Lin28, let-7 and de novo DNA methylation

    Meng Amy Li et al.
    A novel lncRNA (Ephemeron) is connected to known post-transcriptional and epigenetic regulators as part of an integrated machinery, which controls the timely exit from the naïve state of mouse embryonic stem cells.
    1. Stem Cells and Regenerative Medicine
    2. Human Biology and Medicine

    Human embryonic lung epithelial tips are multipotent progenitors that can be expanded in vitro as long-term self-renewing organoids

    Marko Z Nikolić et al.
    Improved characterisation of human embryonic lung development highlights human-mouse differences and facilitates the development of defined culture conditions for the expansion of self-renewing, multipotent human lung epithelial progenitor cells.

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