773 results found
    1. Human Biology and Medicine

    Expression of SREBP-1c Requires SREBP-2-mediated Generation of a Sterol Ligand for LXR in Livers of Mice

    Shunxing Rong et al.
    SREBP-2 directly regulates genes involved in cholesterol homeostasis and indirectly regulates fatty acid synthesis through the production of a ligand responsible for the activation of LXR and SREBP-1c.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    LXRs link metabolism to inflammation through Abca1-dependent regulation of membrane composition and TLR signaling

    Ayaka Ito et al.
    The cholesterol-sensing nuclear receptor LXR regulates inflammatory responses by altering the lipid composition of cell membranes.
    1. Neuroscience

    Loss of the liver X receptor LXRα/β in peripheral sensory neurons modifies energy expenditure

    Virginie Mansuy-Aubert et al.
    In sensory neurons, the receptors LXRα and LXRβ sense dietary-derived molecules to regulate whole body energy expenditure, and present a possible target for new anti-obesity agents.
    1. Cell Biology
    2. Human Biology and Medicine

    BHLHE40, a third transcription factor required for insulin induction of SREBP-1c mRNA in rodent liver

    Jing Tian et al.
    Biochemical and genetic studies reveal a third transcription factor, BHLHE40, that together with LXR and C/EBPβ mediates insulin induction of SREBP-1c, which in turn leads to triglyceride accumulation in liver.
    1. Cell Biology

    Inhibition of cholesterol biosynthesis through RNF145-dependent ubiquitination of SCAP

    Li Zhang et al.
    The E3 ubiquitin ligase RNF145 is shown to contribute to crosstalk between the LXR and SREBP-2 pathways in the regulation of cholesterol homeostasis.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Molecular mechanism to target the endosomal Mon1-Ccz1 GEF complex to the pre-autophagosomal structure

    Jieqiong Gao et al.
    The endosomal GEF Mon1-Ccz1 binds to Atg8 on autophagosomes, and recruits its substrate, the Rab7-like Ypt7, which then mediates fusion of the autophagosomes with the lysosome.
    1. Cell Biology
    2. Developmental Biology

    R-spondins can potentiate WNT signaling without LGRs

    Andres M Lebensohn, Rajat Rohatgi
    R-spondins 2 and 3 can potentiate WNT signaling in the absence of LGRs through interactions with ZNRF3/RNF43 E3 ubiquitin ligases and heparan sulfate proteoglycans, defining two alternative modes of R-spondin-mediated signaling.
    1. Neuroscience

    Light reintroduction after dark exposure reactivates plasticity in adults via perisynaptic activation of MMP-9

    Sachiko Murase et al.
    Light reintroduction (LRx) after dark exposure reactivates structural and functional plasticity in the adult mouse visual cortex by increasing the activity of MMP-9 at thalamo-cortical synapses.
    1. Developmental Biology
    2. Neuroscience

    TIAM-1/GEF can shape somatosensory dendrites independently of its GEF activity by regulating F-actin localization

    Leo TH Tang et al.
    The DMA-1/LRR-TM cell surface receptor signals through partially redundant pathways to cell-autonomously pattern dendrites, including by directly forming a complex with both the TIAM-1/GEF and ACT-4/Actin.
    1. Microbiology and Infectious Disease

    A broadly distributed toxin family mediates contact-dependent antagonism between gram-positive bacteria

    John C Whitney et al.
    Diverse LXG toxins delivered by the Esx pathway function as mediators of contact-dependent interbacterial antagonism within and between Gram-positive bacterial species.

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