299 results found
    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. Genetics and Genomics

    Utility of polygenic embryo screening for disease depends on the selection strategy

    Todd Lencz et al.
    Preimplantation screening of embryos using polygenic risk scores may substantially reduce risk for a given complex disease, but this effect depends on several quantifiable factors and raises significant ethical issues.
    1. Developmental Biology
    2. Neuroscience

    Activity-dependent modulation of synapse-regulating genes in astrocytes

    Isabella Farhy-Tselnicker et al.
    RNA sequencing and genetic mouse models reveal that transcriptional changes to astrocytes in the developing cortex are not intrinsic but influenced by their environment and determine that expression of astrocyte synapse-regulating genes and neuronal synaptogenesis is modulated by ongoing astrocyte-neuron communication.
    1. Cancer Biology

    Lipid droplets and ferritin heavy chain: a devilish liaison in human cancer cell radioresistance

    Luca Tirinato et al.
    Lipid Droplet accumulation is a fingerprint shared by different human cancer radioresistant cells and their biogenesis strongly depend on FTH1 presence.
    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. 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. Evolutionary Biology
    2. Medicine

    APOE4 is associated with elevated blood lipids and lower levels of innate immune biomarkers in a tropical Amerindian subsistence population

    Angela R Garcia et al.
    The relationship between APOE genotype and disease risks may be environmentally moderated, with APOE4 being less harmful and unlikely to increase cardiometabolic risk in a physically active, energy-limited population.
    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.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Inducible and reversible inhibition of miRNA-mediated gene repression in vivo

    Gaspare La Rocca et al.
    A new genetically engineered mouse strain is described in which miRNA activity can be acutely and reversibly inhibited, showing that in a subset of adult tissues miRNA activity is dispensable under homeostatic conditions but becomes essential during tissue regeneration.
    1. Immunology and Inflammation

    Tissue environment, not ontogeny, defines murine intestinal intraepithelial T lymphocytes

    Alejandro J Brenes et al.
    In-depth proteomic analyses of intestinal tissue-resident intraepithelial T lymphocytes reveals how these cells are adapted to the intestinal environment through increased cholesterol and lipid metabolism, tailored metabolic profiles, receptors for interacting with epithelial cells, and tightly regulated signalling pathways.

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