624 results found
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Development of antibody-dependent cell cytotoxicity function in HIV-1 antibodies

    Laura E Doepker, Sonja Danon ... Julie M Overbaugh
    HIV-specific antibodies that mediate antibody-dependent cellular cytotoxicity vary in their paths to achieve function but commonly rely on mutations in multiple regions, including framework regions, to reach full potency.
    1. Cell Biology

    Apolipoprotein L-1 renal risk variants form active channels at the plasma membrane driving cytotoxicity

    Joseph A Giovinazzo, Russell P Thomson ... Ryan Schreiner
    Cytotoxicity associated with APOL1 renal-risk variants occurs through its plasma-membrane localization, where aberrant channel activity drives a sustained sodium and calcium influx leading to cell swelling and eventually cell death.
    1. Cancer Biology
    2. Cell Biology

    The anticancer natural product ophiobolin A induces cytotoxicity by covalent modification of phosphatidylethanolamine

    Christopher Chidley, Sunia A Trauger ... Erin K O'Shea
    An unbiased genetic screen in human cells shows that the molecular target of a natural product with promising anticancer activity is a membrane phospholipid.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    A high-throughput cytotoxicity screening platform reveals agr-independent mutations in bacteraemia-associated Staphylococcus aureus that promote intracellular persistence

    Abderrahman Hachani, Stefano G Giulieri ... Timothy P Stinear
    Staphylococcus aureus switches from innocuous coloniser to invasive human pathogen, the bacterial population can accumulate pathoadaptive mutations that reduce bacterial toxicity whilst allowing persistence within infected cells, potentially leading to severe human infections.
    1. Cell Biology
    2. Immunology and Inflammation

    CD56 regulates human NK cell cytotoxicity through Pyk2

    Justin T Gunesch, Amera L Dixon ... Emily M Mace
    CD56/NCAM, the prototypical marker of human natural killer cells, promotes lytic function towards susceptible target cells by signaling through protein tyrosine kinase 2 (Pyk2).
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Atomic structures of fibrillar segments of hIAPP suggest tightly mated β-sheets are important for cytotoxicity

    Pascal Krotee, Jose A Rodriguez ... David S Eisenberg
    Atomic structures of hIAPP fibrillar segments, determined using the cryo electron microscopy method MicroED, reveal that strong, stable intermolecular interactions are important features of cytotoxic amyloid proteins.
    1. Microbiology and Infectious Disease

    Longitudinal transcriptional changes reveal genes from the natural killer cell-mediated cytotoxicity pathway as critical players underlying COVID-19 progression

    Matias A Medina, Francisco Fuentes-Villalobos ... Maria Ines Barria
    Longitudinal transcriptomic analysis of unvaccinated patients reveals that early NK cell cytotoxicity activation distinguishes mild from severe COVID-19, supporting the relevance of concerted innate–adaptive immune responses against the virus.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    Transcription-associated topoisomerase 2α (TOP2A) activity is a major effector of cytotoxicity induced by G-quadruplex ligands

    Madeleine Bossaert, Angélique Pipier ... Dennis Gomez
    Topoisomerase 2α DNA breaks induced by G-quadruplex ligands are associated with a topological stress resulting from a transcription-dependent mechanism and counteracted by DNA topoisomerase 1 and factors promoting transcription elongation.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    One N-glycan regulates natural killer cell antibody-dependent cell-mediated cytotoxicity and modulates Fc γ receptor IIIa/CD16a structure

    Paul G Kremer, Elizabeth A Lampros ... Adam W Barb
    Multiple lines of evidence demonstrate that a single N-glycan on one receptor influences the strength of a cytotoxic response elicited by natural killer cells following stimulation with an antibody-coated target.
    1. Immunology and Inflammation

    Inhibition of SHP-1 activity by PKC-θ regulates NK cell activation threshold and cytotoxicity

    Aviad Ben-Shmuel, Batel Sabag ... Mira Barda-Saad
    Phosphorylation of the phosphatase SHP-1 by PKC-θ in natural killer (NK) cells induces SHP-1 inhibition, revealing a novel molecular pathway that sustains NK cell activation threshold.

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