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    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Genetically engineered mesenchymal stem cells as a nitric oxide reservoir for acute kidney injury therapy

    Haoyan Huang, Meng Qian ... Zongjin Li
    Engineered mesenchymal stem cells (MSCs) could produce mutant β-galactosidase and trigger nitric oxide (NO) release when the NO prodrug is systemically administered, which can achieve NO release in a precise spatiotemporal manner and augment the therapeutic efficiency of MSCs.
    1. Biochemistry and Chemical Biology

    Cytosolic aspartate aminotransferase moonlights as a ribosome-binding modulator of Gcn2 activity during oxidative stress

    Robert A Crawford, Mark P Ashe ... Graham D Pavitt
    Using mass spectrometry to study protein composition of translating ribosomes under unstressed or stress conditions, aspartate aminotransferase 2 (Aat2) is identified as a metabolic enzyme with a moonlighting function in the yeast integrated stress-response pathway.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Proteomic mapping of cytosol-facing outer mitochondrial and ER membranes in living human cells by proximity biotinylation

    Victoria Hung, Stephanie S Lam ... Alice Y Ting
    One minute biotinylation with APEX2 peroxidase in living cells identifies established and new components of mitochondrial and ER membranes; dataset intersection and overexpression screen identifies SYNJ2BP overexpression as inducing mitochondria-rough ER contacts.
    1. Immunology and Inflammation
    2. Neuroscience

    Glia-mediated gut-brain cytokine signaling couples sleep to intestinal inflammation

    Alina Malita, Olga Kubrak ... Kim Rewitz
    Not revised
    Reviewed Preprint v1
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    • Solid
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Free spermidine evokes superoxide radicals that manifest toxicity

    Vineet Kumar, Rajesh Kumar Mishra ... Dipak Dutta
    Spermidine-mediated superoxide generation affects iron homeostasis in Escherichia coli.
    1. Cell Biology
    2. Computational and Systems Biology

    DetecDiv, a generalist deep-learning platform for automated cell division tracking and survival analysis

    Théo Aspert, Didier Hentsch, Gilles Charvin
    A deep learning-based image classification pipeline unleashes automated division counting and replicative lifespan analyses of single cells growing in microfluidic cellular traps.
    1. Microbiology and Infectious Disease

    Biosensor-integrated transposon mutagenesis reveals rv0158 as a coordinator of redox homeostasis in Mycobacterium tuberculosis

    Somnath Shee, Reshma T Veetil ... Amit Singh
    Genome-scale integration of transposon mutagenesis with a redox biosensor identified a hypothetical transcription factor- Rv0158 required to calibrate the growth, cytoplasmic redox potential, and respiration of Mycobacterium tuberculosis in response to metabolic switching from glucose to fatty acids.
    1. Microbiology and Infectious Disease

    Altering the redox status of Chlamydia trachomatis directly impacts its developmental cycle progression

    Vandana Singh, Scot P Ouellette
    Differentiation of the pathogenic bacterium, Chlamydia trachomatis, from its non-infectious to infectious form is linked to the redox state of the organism.
    1. Stem Cells and Regenerative Medicine

    Mesenchymal stromal cell aging impairs the self-organizing capacity of lung alveolar epithelial stem cells

    Diptiman Chanda, Mohammad Rehan ... Victor J Thannickal
    Lung stem cell niche aging is associated with altered bioenergetics, metabolic dysfunction, and senescence of mesenchymal stromal cells that restricts 3D organoid, or alveolosphere formation, potentially accounting for reduced regenerative capacity with aging.