130 results found
    1. Biochemistry and Chemical Biology

    Flux analysis of cholesterol biosynthesis in vivo reveals multiple tissue and cell-type specific pathways

    Matthew A Mitsche et al.
    Cells use two interdigitated biosynthetic pathways that can be regulated independently to produce diverse bioactive sterols.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Release of cholesterol-rich particles from the macrophage plasma membrane during movement of filopodia and lamellipodia

    Xuchen Hu et al.
    Macrophages release 30-nm vesicular particles enriched in accessible cholesterol during cellular locomotion, a discovery that is likely relevant to cholesterol disposal by these cells.
    1. Structural Biology and Molecular Biophysics

    Structure of human Frizzled5 by fiducial-assisted cryo-EM supports a heterodimeric mechanism of canonical Wnt signaling

    Naotaka Tsutsumi et al.
    Cryo-EM structure of monomeric human Frizzled5 was determined with a universal fiducial antibody at 3.7 Å overall resolution, which supports a simple Fzd/LRP6 heterodimerization mechanism of canonical Wnt/β-catenin signaling.
    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

    A critical role of VMP1 in lipoprotein secretion

    Hideaki Morishita et al.
    The ER transmembrane protein VMP1 is important for release of lipoproteins from the ER membrane into the ER lumen for secretion.
    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. Cell Biology

    Accelerated phosphatidylcholine turnover in macrophages promotes adipose tissue inflammation in obesity

    Kasparas Petkevicius et al.
    Obesity leads to increased phosphatidylcholine turnover in adipose tissue macrophages that makes them susceptible to saturated fatty acid-induced inflammation.

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