2,681 results found
    1. Microbiology and Infectious Disease

    Pathogen clonal expansion underlies multiorgan dissemination and organ-specific outcomes during murine systemic infection

    Karthik Hullahalli, Matthew K Waldor
    During Escherichia coli systemic infection, the replication of a minuscule fraction of the inoculum drives organ-specific clearance failures, systemic dissemination, and stochastic infection outcomes.
    1. Cell Biology

    Impaired mRNA splicing and proteostasis in preadipocytes in obesity-related metabolic disease

    Julia Sánchez-Ceinos et al.
    Alternative splicing and the endoplasmic reticulum (ER)-associated protein degradation (ERAD) system represent essential, fat depot-specific components of the adipogenesis that are altered in preadipocytes from obese individuals with metabolic disease.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    The Lon protease temporally restricts polar cell differentiation events during the Caulobacter cell cycle

    Deike J Omnus et al.
    A proteomics-based approach identifies novel substrate proteins of the Lon protease in Caulobacter crescentus and reveals a critical role of Lon in regulating flagella assembly and stalk biogenesis during the cell cycle.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Adult stem cells and niche cells segregate gradually from common precursors that build the adult Drosophila ovary during pupal development

    Amy Reilein et al.
    Somatic stem and niche cells in the Drosophila ovary develop from common precursors through regulated proliferative expansion, followed by acquisition of position-specific behaviors, rather than through rigid early specification events.
    1. Microbiology and Infectious Disease

    Total parasite biomass but not peripheral parasitaemia is associated with endothelial and haematological perturbations in Plasmodium vivax patients

    João L Silva-Filho et al.
    Data exploring host and parasite signatures in the peripheral blood indicate that total parasite biomass is a better predictor of P. vivax-induced host responses and pathogenesis than peripheral parasitemia.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    First-principles model of optimal translation factors stoichiometry

    Jean-Benoît Lalanne, Gene-Wei Li
    A parsimonious biophysical model correctly predicts the conserved expression stoichiometry of core bacterial mRNA translation factors, providing intuitive and quantitative design principles for in vivo pathway construction.
    1. Cell Biology
    2. Neuroscience

    HIF1α stabilization in hypoxia is not oxidant-initiated

    Amit Kumar et al.
    The current findings address the redox regulation of hypoxia inducible factor 1α (HIF1α) stability in hypoxia by showing that cytosolic, mitochondrial or lipid ROS are not necessary for HIF1α stabilization in hypoxia.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Conformational changes in twitchin kinase in vivo revealed by FRET imaging of freely moving C. elegans

    Daniel Porto et al.
    Quantitative FRET imaging in moving C. elegans shows that stretch-unfolding of twitchin kinase occurs in the active muscle, whereby mechanical activity titrates the signaling pathway of this cytoskeletal kinase.
    1. Immunology and Inflammation

    Microglia and CD206+ border-associated mouse macrophages maintain their embryonic origin during Alzheimer’s disease

    Xiaoting Wu et al.
    Inducible fate-mapping analysis demonstrates that neither microglia, CD11c+ activated microglia nor border-associated macrophages are replenished by bone marrow-derived cells in Alzheimer’s disease.
    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.

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