64 results found
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Stochastic modelling, Bayesian inference, and new in vivo measurements elucidate the debated mtDNA bottleneck mechanism

    Iain G Johnston et al.
    New modelling, statistics, and experiments show that cellular populations of mitochondrial DNA (mtDNA) evolve during development according to solvable stochastic dynamics involving binomial partitioning and random turnover, facilitating a predictive and quantitative theory of the mtDNA bottleneck.
    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. Neuroscience

    A dynamin 1-, dynamin 3- and clathrin-independent pathway of synaptic vesicle recycling mediated by bulk endocytosis

    Yumei Wu et al.
    Analysis of neurons that lack the two neuronal dynamins, dynamin 1 and 3, demonstrates a pathway of synaptic vesicle reformation that does not require these two dynamins or clathrin-dependent budding.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    ATM regulation of IL-8 links oxidative stress to cancer cell migration and invasion

    Wei-Ta Chen et al.
    The ATM kinase has an unanticipated role in tumor progression through the regulation of cell migration by oxidative stress.
    1. Cancer Biology

    Horizontal transfer of whole mitochondria restores tumorigenic potential in mitochondrial DNA-deficient cancer cells

    Lan-Feng Dong et al.
    A genetic approach documents that mitochondrial DNA moves from donor cells to recipient mtDNA-depleted cells in whole mitochondria and that this restores mitochondrial respiration and the capacity of the cells to form tumours.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Functional genomics of lipid metabolism in the oleaginous yeast Rhodosporidium toruloides

    Samuel T Coradetti et al.
    Using barcoded mutagenesis and a high-throughput genetic screen results in the identification of 150 genes that affect lipid accumulation in a non-model yeast system.
    1. Human Biology and Medicine
    2. Neuroscience

    Inhibition of PIP4Kγ ameliorates the pathological effects of mutant huntingtin protein

    Ismael Al-Ramahi et al.
    This work validates PIP4K gamma as pharmacological target to ameliorate Huntington's disease.
    1. Neuroscience

    Metabolic stress is a primary pathogenic event in transgenic Caenorhabditis elegans expressing pan-neuronal human amyloid beta

    Emelyne Teo et al.
    Metabolic defects following expression of Aβ1-42 in nematode neurons are partially caused by inactivation of alpha-ketoglutarate dehydrogenase and can be rescued by Metformin.
    1. Cell Biology
    2. Neuroscience

    Pregnancy-associated plasma protein-aa supports hair cell survival by regulating mitochondrial function

    Mroj Alassaf et al.
    Hair cell survival and mitochondrial function is supported by an extracellular stimulator of IGF1 signaling, the protease pregnancy-associated plasma protein-aa.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Proteasome storage granules protect proteasomes from autophagic degradation upon carbon starvation

    Richard S Marshall, Richard D Vierstra
    Proteasomes are protected from autophagic elimination upon carbon starvation by sequestration into cytoplasmic storage granules, which aid cell fitness by providing a cache of proteasomes that can be rapidly remobilized when carbon availability improves.

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