185 results found
    1. Genetics and Genomics

    miR-1 coordinately regulates lysosomal v-ATPase and biogenesis to impact proteotoxicity and muscle function during aging

    Isabelle Schiffer, Birgit Gerisch ... Adam Antebi
    Coordinate control of lysosomal v-ATPase subunits and biogenesis factor TFEB by miR-1 identifies a key regulatory axis with strong links to age-related proteotoxic disease.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The E3 ubiquitin ligase ZNRF2 is a substrate of mTORC1 and regulates its activation by amino acids

    Gerta Hoxhaj, Edward Caddye ... Carol MacKintosh
    The ZNRF2 enzyme helps the mTOR protein complex to sense amino acid levels and regulate mammalian cell growth.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The vacuolar-ATPase complex and assembly factors, TMEM199 and CCDC115, control HIF1α prolyl hydroxylation by regulating cellular iron levels

    Anna L Miles, Stephen P Burr ... James A Nathan
    An unbiased genome-wide human forward genetic screen identifies the vacuolar ATPase complex and assembly factors as regulators of HIF stability through their actions on intracellular iron metabolism.
    1. Cell Biology

    Impaired lysosomal acidification triggers iron deficiency and inflammation in vivo

    King Faisal Yambire, Christine Rostosky ... Nuno Raimundo
    Impaired lysosomal acidification results in retention of iron inside lysosomes, triggering functional iron deficiency, dysfunctional mitochondria (especially mtDNA loss), and inflammation in vivo in a mouse model of lysosomal disease.
    1. Cell Biology

    Novel mechanism for tubular injury in nephropathic cystinosis

    Swastika Sur, Maggie Kerwin ... Minnie M Sarwal
    ATP6V0A1 was identified as a key player in nephropathic cystinosis-related renal pathology, with antioxidants like ATX emerging as potential treatments to restore V0A1 expression, mitochondrial function, and balance autophagic processes.
    1. Cell Biology

    trim-21 promotes proteasomal degradation of CED-1 for apoptotic cell clearance in C. elegans

    Lei Yuan, Peiyao Li ... Hui Xiao
    The phagocytic receptor CED-1 is kept at the appropriate level by E3 ligase trim-21-mediated ubiquitination-proteasomal degradation for apoptotic cell clearance, which is independent of retromer-dependent recycling and lysosomal degradation.
    1. Cell Biology
    2. Neuroscience

    The endoplasmic reticulum, not the pH gradient, drives calcium refilling of lysosomes

    Abigail G Garrity, Wuyang Wang ... Haoxing Xu
    The endoplasmic reticulum serves as a direct and primary source of calcium ions for the lysosome.
    1. Cell Biology
    2. Neuroscience

    VCP-dependent muscle degeneration is linked to defects in a dynamic tubular lysosomal network in vivo

    Alyssa E Johnson, Huidy Shu ... Graeme W Davis
    The AAA-ATPase VCP sustains sarcoplasmic proteostasis, in part, by controlling autophagosome-lysosome fusion and the integrity of a dynamic tubular lysosomal network.
    1. Cell Biology

    Lysosome activity is modulated by multiple longevity pathways and is important for lifespan extension in C. elegans

    Yanan Sun, Meijiao Li ... Xiaochen Wang
    Cell biological and genetic studies reveal age-associated alterations of lysosomes and modulation of lysosomal activity by longevity pathways.
    1. Cell Biology

    Metformin extends C. elegans lifespan through lysosomal pathway

    Jie Chen, Yuhui Ou ... Ying Liu
    Metformin extends C. elegans lifespan through lysosome-dependent coordination of TORC1 and AMPK pathways.

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