102 results found
    1. Structural Biology and Molecular Biophysics

    Cystic fibrosis drug ivacaftor stimulates CFTR channels at picomolar concentrations

    László Csanády, Beáta Töröcsik
    Aqueous solubility of cystic fibrosis drug ivacaftor is ~200-fold lower, whereas the potency of its stimulatory effect on the CFTR channel is >100-fold higher, than reported, and is fully reversible.
    1. Human Biology and Medicine
    2. Immunology and Inflammation

    ENaC-mediated sodium influx exacerbates NLRP3-dependent inflammation in cystic fibrosis

    Thomas Scambler et al.
    Dysfunction and overexpression of ENaC-mediated sodium influx exacerbates activation of NLRP3-inflammasome mediated inflammation in cells with CF-associated mutations and is modulated by inhibition of these amiloride-sensitive sodium (Na+) channels.
    1. Computational and Systems Biology
    2. Human Biology and Medicine

    Unravelling druggable signalling networks that control F508del-CFTR proteostasis

    Ramanath Narayana Hegde et al.
    Analysis of the mechanism of action of cystic fibrosis corrector drugs reveals signalling pathways potently controlling the proteostasis of the main disease-relevant CFTR mutant.
    1. Structural Biology and Molecular Biophysics

    Asymmetry of movements in CFTR's two ATP sites during pore opening serves their distinct functions

    Ben Sorum et al.
    In the CFTR chloride channel, ATP bound in the catalytic site promotes pore opening, whereas ATP bound in the non-catalytic site supports unidirectional conformational cycling by preventing pore closure without ATP hydrolysis in the catalytic site.
    1. Cell Biology

    Counteracting suppression of CFTR and voltage-gated K+ channels by a bacterial pathogenic factor with the natural product tannic acid

    Yajamana Ramu et al.
    Tannic acid acts as an ‘antidote’ against the negative effects of a bacterial enzyme, which can both aggravate cystic fibrosis and enable the anthrax bacteria to evade the immune responses elicited by a typical live vaccine.
  1. Living Science: The humanity of science

    Indira M Raman
    Science can provide cures and improve health, and it can also make us more humane.
    1. Biochemistry and Chemical Biology

    Enzyme Mechanisms: Wedging open a catalytic site

    Annie Beuve
    The activation mechanism of the nitric oxide receptor has been revealed by cryo-electron microscopy.
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    1. Microbiology and Infectious Disease

    An orphan cbb3-type cytochrome oxidase subunit supports Pseudomonas aeruginosa biofilm growth and virulence

    Jeanyoung Jo et al.
    During growth in biofilms and host infection, the opportunistic pathogen Pseudomonas aeruginosa employs respiratory heterocomplexes that support extracellular electron shuttling and pathogenicity.
    1. Cell Biology

    High lumenal chloride in the lysosome is critical for lysosome function

    Kasturi Chakraborty et al.
    Lysosomes are highly enriched in chloride, which is essential for their degradative function.
    1. Cell Biology
    2. Immunology and Inflammation

    Diverse stimuli engage different neutrophil extracellular trap pathways

    Elaine F Kenny et al.
    NETs induction, a central component of the innate immune response, utilises assorted signalling pathways as demonstrated through the analysis of healthy and patient neutrophils treated with five distinct stimuli.

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