2,294 results found
    1. Cell Biology

    Collagen polarization promotes epithelial elongation by stimulating locoregional cell proliferation

    Hiroko Katsuno-Kambe et al.
    Integrin- and ERK signaling stimulates mammary epithelial cell proliferation when extracellular collagen condenses, causing asymmetric growth of multicellular aggregates that is necessary for elongation during branching morphogenesis.
    1. Biochemistry and Chemical Biology
    2. Medicine

    Early prediction of in-hospital death of COVID-19 patients: a machine-learning model based on age, blood analyses, and chest x-ray score

    Emirena Garrafa et al.
    An early-warning model able to predict in-hospital mortality in patients affected by COVID-19 was developed and validated using common and economic tools.
    1. Cell Biology
    2. Neuroscience

    Pathogenic LRRK2 control of primary cilia and Hedgehog signaling in neurons and astrocytes of mouse brain

    Shahzad S Khan et al.
    Striatal cholinergic interneurons and astrocytes lose cilia and show dysregulation of Hedgehog signaling in mice with a Parkinson's disease-associated, G2019S LRRK2 mutation or upon loss of PPM1H phosphatase specific for LRRK2-phosphorylated Rab GTPases.
    1. Cell Biology
    2. Developmental Biology

    Fascin limits Myosin activity within Drosophila border cells to control substrate stiffness and promote migration

    Maureen C Lamb et al.
    Collectively migrating cells control their stiffness by Fascin-dependent control of Myosin activity, and this migratory cell stiffness regulates Myosin activity and stiffness within the cellular substrate to ultimately promote migration.
    1. Plant Biology

    A novel bivalent chromatin associates with rapid induction of camalexin biosynthesis genes in response to a pathogen signal in Arabidopsis

    Kangmei Zhao et al.
    A previously uncharacterized type of bivalent chromatin plays an important role controlling the timely induction of genes involved in making a potent defense metabolite upon a pathogen signal in Arabidopsis.
    1. Medicine
    2. Microbiology and Infectious Disease

    An open label randomized controlled trial of tamoxifen combined with amphotericin B and fluconazole for cryptococcal meningitis

    Nguyen Thi Thuy Ngan et al.
    Despite evidence of significant anti-cryptococcal activity in vitro and animal models, including synergy with other antifungal agents, high-dose tamoxifen has no impact on cerebrospinal fluid sterilization in cryptococcal meningitis.
    1. Medicine

    Infrared molecular fingerprinting of blood-based liquid biopsies for the detection of cancer

    Marinus Huber et al.
    The combination of molecular infrared fingerprinting and machine learning enables the detection of breast, bladder, prostate, and lung cancer based on liquid blood serum and plasma, providing a general framework for the minimally invasive investigation of oncological conditions.
    1. Ecology

    Echolocating toothed whales use ultra-fast echo-kinetic responses to track evasive prey

    Heather Vance et al.
    Echolocating toothed whales can detect and react to sudden prey movements during close approaches with speeds similar to ultra-fast tracking responses in human vision.
    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. Structural Biology and Molecular Biophysics

    Transcription initiation at a consensus bacterial promoter proceeds via a ‘bind-unwind-load-and-lock’ mechanism

    Abhishek Mazumder et al.
    Single-molecule fluorescence experiments reveal transcription initiation proceeds via a 'bind-unwind-load-and-lock' mechanism where promoter DNA unwinds outside the RNA polymerase (RNAP) cleft, the unwound template-DNA loads into the cleft, and RNAP 'locks' the template-DNA by closing the RNAP clamp module.

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