577 results found
    1. Cancer Biology

    Horizontal transfer of whole mitochondria restores tumorigenic potential in mitochondrial DNA-deficient cancer cells

    Lan-Feng Dong et al.
    A genetic approach documents that mitochondrial DNA moves from donor cells to recipient mtDNA-depleted cells in whole mitochondria and that this restores mitochondrial respiration and the capacity of the cells to form tumours.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.
    1. Neuroscience

    Autoresuscitation: The central role of serotonin

    Gary C Mouradian, Matthew R Hodges
    The neurotransmitter serotonin helps to co-ordinate the respiratory and cardiovascular responses of newborns to oxygen deprivation.
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  1. Point of View: The sustainable professor

    Elizabeth S Haswell
    Responsible agricultural practices provide a useful lens through which to consider the lives and careers of researchers.
    1. Ecology
    2. Evolutionary Biology

    Point of View: Managing a sustainable deep-sea ‘blue economy’ requires knowledge of what actually lives there

    Adrian G Glover et al.
    High-throughput, integrative taxonomy has a crucial role to play in ensuring that the resources in our oceans are managed and developed in a sustainable manner.
    1. Immunology and Inflammation
    2. Neuroscience

    CSF1R blockade induces macrophage ablation and results in mouse choroidal vascular atrophy and RPE disorganization

    Xiao Yang et al.
    Vascular degeneration of the choroid and RPE disorganization were associated with pharmacological macrophage ablation, indicating that insufficiency of macrophage function may be a mechanism underlying age- and AMD-associated pathology.
    1. Cell Biology
    2. Neuroscience

    Neurotrophins induce fission of mitochondria along embryonic sensory axons

    Lorena Armijo-Weingart et al.
    Induction of the fission of mitochondria-populating sensory axons is shown to be a novel biological action of neurotrophins.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Metabolic and non-metabolic liver zonation is established non-synchronously and requires sinusoidal Wnts

    Ruihua Ma et al.
    Mouse genetic approaches show that multiple Wnt endothelial sources orchestrate the spatiotemporal distribution of hepatocyte functions during liver maturation and respecify metabolic zonation during liver repair.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A Fyn biosensor reveals pulsatile, spatially localized kinase activity and signaling crosstalk in live mammalian cells

    Ananya Mukherjee et al.
    Unique biosensor design and protein-engineering enables direct visualization of the active form of Fyn kinase with high specificity, minimal perturbation and shows cellular signaling to be compartmentalized and pulsatile.
    1. Developmental Biology
    2. Neuroscience

    Purinergic signaling in cochlear supporting cells reduces hair cell excitability by increasing the extracellular space

    Travis A Babola et al.
    Supporting cells in the cochlea change their shape in response to purinergic receptor activation, which influences hair cell excitability by altering potassium redistribution in the extracellular space.

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