595 results found
    1. Cell Biology

    Metformin alleviates stress-induced cellular senescence of aging human adipose stromal cells and the ensuing adipocyte dysfunction

    Laura Le Pelletier et al.
    Aging is associated with stress-induced senescence of adipose stromal cells, leading to impaired adipogenesis, oxidative stress, mitochondrial dysfunction, and insulin resistance, all being alleviated by metformin treatment of adipose stromal cells.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Quantitative proteomics reveals the selectivity of ubiquitin-binding autophagy receptors in the turnover of damaged lysosomes by lysophagy

    Vinay V Eapen et al.
    A combination of spatial proteomic and autophagic flux approaches was used to reveal the landscape of turnover of damaged lysosomes, demonstrating a key role for the autophagy receptor TAX1BP1 and its associated kinase TBK1 in both HeLa cells and iNeurons.
    1. Cell Biology
    2. Developmental Biology

    Par3 cooperates with Sanpodo for the assembly of Notch clusters following asymmetric division of Drosophila sensory organ precursor cells

    Elise Houssin et al.
    Baz/Par3 and Sanpdo are required for clustering and activation of Notch receptors to allow intra-lineage private communication following asymmetric division of Drosophila epithelial cells.
    1. Cell Biology
    2. Neuroscience

    The LRRK2 G2019S mutation alters astrocyte-to-neuron communication via extracellular vesicles and induces neuron atrophy in a human iPSC-derived model of Parkinson’s disease

    Aurelie de Rus Jacquet et al.
    Extracellular vesicles are proposed as novel, non-cell-autonomous mediators of neuronal atrophy in Parkinson's disease.
    1. Cell Biology

    A PX-BAR protein Mvp1/SNX8 and a dynamin-like GTPase Vps1 drive endosomal recycling

    Sho W Suzuki et al.
    PX-BAR Mvp1 and dynamin-like GTPase Vps1 drive retromer-independent endosomal recycling.
    1. Cell Biology

    Ectocytosis prevents accumulation of ciliary cargo in C. elegans sensory neurons

    Adria Razzauti, Patrick Laurent
    Disposal of ciliary proteins via ectosomes budding from cilia tip or cilia base acts as a safeguard mechanism when cilia trafficking functions are impaired.
    1. Cell Biology

    Endoplasmic reticulum tubules limit the size of misfolded protein condensates

    Smriti Parashar et al.
    The endoplasmic reticulum (ER) uses ER tubules and specific ER autophagy machinery to prevent toxic, dominant-interfering, disease-causing, mutant proteins from entering the secretory pathway.
    1. Developmental Biology

    Differentiation of mouse fetal lung alveolar progenitors in serum-free organotypic cultures

    Konstantinos Gkatzis et al.
    A serum-free organotypic culture model of mouse lung epithelial progenitors was developed and used to screen WNT modulators for regulators of epithelial differentiation.
    1. Cell Biology
    2. Physics of Living Systems

    Autonomous clocks that regulate organelle biogenesis, cytoskeletal organization, and intracellular dynamics

    Mohammad Mofatteh et al.
    Latest advances in biological timing studies substantiate an emerging concept of autonomous clocks that are normally entrained by the cell cycle and/or the circadian clock to run in synchrony, but have evolved to run independently to regulate different cellular events.
    1. Genetics and Genomics

    Human genetic analyses of organelles highlight the nucleus in age-related trait heritability

    Rahul Gupta et al.
    Although cellular organelles show a functional deterioration in aging, genetic loci associated with common age-associated disease instead nominate nuclear transcription factors across several age-related diseases.

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