107 results found
    1. Biochemistry and Chemical Biology

    Variability of cholesterol accessibility in human red blood cells measured using a bacterial cholesterol-binding toxin

    Rima S Chakrabarti et al.
    Accessible cholesterol levels in human red blood cells were found to be stable within individuals but vary >10-fold among individuals and this variability may contribute to differences in cholesterol trafficking among tissues.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Continuous transport of a small fraction of plasma membrane cholesterol to endoplasmic reticulum regulates total cellular cholesterol

    Rodney Elwood Infante, Arun Radhakrishnan
    A post-lysosomal cholesterol transport inhibitor reveals how the endoplasmic reticulum membrane regulates total cellular cholesterol by constantly monitoring a critical pool of cholesterol in the plasma membrane.
    1. Developmental Biology
    2. Immunology and Inflammation

    Symbiosis: Protection from within

    Florent Masson, Bruno Lemaitre
    The development of the tsetse fly immune system relies on a cue from an endosymbiotic bacterium called Wigglesworthia.
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    1. Ecology
    2. Evolutionary Biology
    C. elegans illustration

    The Natural History of Model Organisms: C. elegans outside the Petri dish

    Lise Frézal, Marie-Anne Félix
    To leverage the tools, resources and knowledge that exist for C. elegans so that we can study ecology, evolution and other aspects of biology, we need to understand the natural history of this important model organism.
    1. Microbiology and Infectious Disease

    Vibrio deploys type 2 secreted lipase to esterify cholesterol with host fatty acids and mediate cell egress

    Suneeta Chimalapati et al.
    Considering the course of a pathogen's evolution, there appears to be interplay between secretion systems, providing unique, synergistic mechanisms to support a successful lifestyle for possibly pathogenesis, symbiosis and/or parasitosis.
    1. Cell Biology

    Super-resolution microscopy reveals majorly mono- and dimeric presenilin1/γ-secretase at the cell surface

    Abril Angélica Escamilla-Ayala et al.
    Super-resolution microscopy sets a new strategy to comprehend the membrane organization of γ-secretase at single complex resolution identifying nanodomain associations and its diffusion in situ in the living membrane.
    1. Computational and Systems Biology
    2. Neuroscience

    Mouse brain transcriptome responses to inhaled nanoparticulate matter differed by sex and APOE in Nrf2-Nfkb interactions

    Amin Haghani et al.
    Transcriptome analysis of mouse brain revealed that the APOE4 allele and sex can alter air pollution neurotoxicity in adults.
    1. Cancer Biology
    2. Immunology and Inflammation

    The tumor microenvironment as a metabolic barrier to effector T cells and immunotherapy

    Aaron R Lim et al.
    Diverse components of the tumor microenvironment affect T cell metabolism in ways that are crucial to improving immunotherapy.
    1. Cell Biology
    2. Developmental Biology

    Cholesterol accessibility at the ciliary membrane controls hedgehog signaling

    Maia Kinnebrew et al.
    The patched hedgehog receptor inhibits the transmembrane transducer smoothened by reducing the accessibility of cholesterol locally at the membrane of the primary cilium.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    Mouse TRPA1 function and membrane localization are modulated by direct interactions with cholesterol

    Justyna B Startek et al.
    The activation and membrane localization of the broadly-tuned noxious chemosensory cation channel TRPA1 are regulated by direct interactions with cholesterol via CRAC motifs in transmembane segments 2 and 4.

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