633 results found
    1. Evolutionary Biology
    2. Physics of Living Systems

    Evolution of irreversible somatic differentiation

    Yuanxiao Gao et al.
    Irreversible differentiation into somatic cells is evolutionarily optimal if changing cell phenotype is costly, a few somatic cells already improve the organism's performance, and the organism is large enough.
    1. Developmental Biology

    End-of-life targeted degradation of DAF-2 insulin/IGF-1 receptor promotes longevity free from growth-related pathologies

    Richard Venz et al.
    Inducible degradation of the insulin/insulin-like growth factor-1 receptor shows that a doubling in lifespan is possible even at extremely old ages in an organism.
    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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Visualizing formation of the active site in the mitochondrial ribosome

    Viswanathan Chandrasekaran et al.
    GTPBP7, NSUN4, and MTERF4 facilitate maturation of the peptidyl transferase center of the mitochondrial ribosome.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    TMEM120A contains a specific coenzyme A-binding site and might not mediate poking- or stretch-induced channel activities in cells

    Yao Rong et al.
    Electrophysiological and structural characterizations reveal that a previously proposed ion channel responsible for sensing mechanical pain is insensitive to poking or stretching stimuli for conducting ions and may serve as a coenzyme A-binding protein instead.
    1. Developmental Biology

    Apical contacts stemming from incomplete delamination guide progenitor cell allocation through a dragging mechanism

    Eduardo Pulgar et al.
    Incomplete delamination serves as a cellular platform for coordinated tissue movements during development, guiding newly formed progenitor cell groups to the differentiation site.
    1. Genetics and Genomics

    NHR-8 and P-glycoproteins uncouple xenobiotic resistance from longevity in chemosensory C. elegans mutants

    Gabriel A Guerrero et al.
    Separate genetic pathways mediate longevity, pathogen resistance, and cell-nonautonomous regulation of xenobiotic detoxification in chemosensory defective Caenorhabditis elegans mutants.
    1. Biochemistry and Chemical Biology

    Cytosolic aggregation of mitochondrial proteins disrupts cellular homeostasis by stimulating the aggregation of other proteins

    Urszula Nowicka et al.
    Defective mitochondrial protein import results in protein aggregation and a specific chaperone response in the cytosol, causatively linking mitochondrial function and cellular protein homeostasis disturbances observed in neurodegeneration.
    1. Cell Biology
    2. Genetics and Genomics

    Analysis of meiosis in Pristionchus pacificus reveals plasticity in homolog pairing and synapsis in the nematode lineage

    Regina Rillo-Bohn et al.
    Investigation of meiosis in the nematode Pristionchus pacificus has illuminated evolutionary variation in this essential aspect of reproduction and established a new model for future study.

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