19 results found
    1. Structural Biology and Molecular Biophysics
    2. Cancer Biology

    A bulky glycocalyx fosters metastasis formation by promoting G1 cell cycle progression

    Elliot C Woods et al.
    Mucins, long associated with cancer aggression, remodel the cancer glycocalyx in a way that promotes proliferation in the metastatic site by enhancing integrin-mediated adhesion and thus driving cell cycle progression.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Lysosomal membrane glycoproteins bind cholesterol and contribute to lysosomal cholesterol export

    Jian Li, Suzanne R Pfeffer
    LAMP proteins, the major glycoproteins of the lysosome membrane, bind cholesterol directly and specifically, and interact with NPC1 and NPC2 proteins as part of the lysosomal cholesterol export process.
    1. Biochemistry and Chemical Biology

    Lipid polarity gradient formed by ω-hydroxy lipids in tear film prevents dry eye disease

    Masatoshi Miyamoto et al.
    (O-Acyl)-ω-hydroxy fatty acids and their derivatives, produced by the fatty acid ω-hydroxylase Cyp4f39, form a lipid polarity gradient in the lipid layer of the tear film and prevent dry eye.
    1. Neuroscience

    Apolipoprotein M-bound sphingosine-1-phosphate regulates blood–brain barrier paracellular permeability and transcytosis

    Mette Mathiesen Janiurek et al.
    Shortage of blood-borne apolipoprotein-M–bound sphingosine-1-phosphate, which accompanies various brain disorders, causes paracellular leak and increase in transcytosis at the blood–brain barrier, which can be reversed, thus is of clinical relevance.
    1. Cell Biology
    2. Neuroscience

    The interactome of the copper transporter ATP7A belongs to a network of neurodevelopmental and neurodegeneration factors

    Heather S Comstra et al.
    The ATP7A interactome is the first comprehensive view of putative Menkes disease neurodegeneration mechanisms.
    1. Cell Biology

    The transcription factors TFE3 and TFEB amplify p53 dependent transcriptional programs in response to DNA damage

    Owen A Brady et al.
    Disruption of TFEB and TFE3 results in diminished p53 signaling capacity and altered cell cycle regulation under genotoxic stress conditions.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Predicted glycosyltransferases promote development and prevent spurious cell clumping in the choanoflagellate S. rosetta

    Laura A Wetzel et al.
    A genetic screen reveals that two predicted glycosyltransferases promote rosette development and prevent cell clumping in one of the closest living relatives of animals, the choanoflagellate S. rosetta.
    1. Developmental Biology

    A multi-layered and dynamic apical extracellular matrix shapes the vulva lumen in Caenorhabditis elegans

    Jennifer D Cohen et al.
    Confocal imaging, electron microscopy, and genetic perturbations provide an unprecedented view of a complex and dynamic luminal matrix that determines tube shape during morphogenesis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Inter-domain dynamics drive cholesterol transport by NPC1 and NPC1L1 proteins

    Piyali Saha et al.
    Molecular analysis of cholesterol transport by NPC1 and NPC1L1 proteins reveals that cholesterol likely moves through these transporters, and ezetimibe blocks NPC1L1 by binding at the interface between multiple domains.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Intracellular cholesterol trafficking is dependent upon NPC2 interaction with lysobisphosphatidic acid

    Leslie A McCauliff et al.
    Sterol kinetics and cell-based assays reveal a heretofore unknown step in cholesterol trafficking through the endolysosomal compartment, involving a direct functional interaction between NPC2 and lysosbisphosphatidic acid.

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