17 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Temporal profiling of redox-dependent heterogeneity in single cells

    Meytal Radzinski et al.
    Analysis of aging yeast cells using the in-vivo roGFP2-based probe reveals redox-dependent heterogeneity, reflected in a bi-modal distribution of the oxidation status, differential growth and replication, as well as distinct proteomic and transcriptomic profiles.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Neutrophil-generated HOCl leads to non-specific thiol oxidation in phagocytized bacteria

    Adriana Degrossoli et al.
    The use of genetically encoded redox sensors in phagocytized bacteria reveals that, among the toxic cocktail of oxidants released into the neutrophil's phagolysosome, HOCl is the main component responsible for the oxidative modification of bacterial protein thiols.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    A tryparedoxin-coupled biosensor reveals a mitochondrial trypanothione metabolism in trypanosomes

    Samantha Ebersoll et al.
    African trypanosomes have a trypanothione-based mitochondrial thiol redox metabolism.
    1. Ecology
    2. Microbiology and Infectious Disease

    Light-dependent single-cell heterogeneity in the chloroplast redox state regulates cell fate in a marine diatom

    Avia Mizrachi et al.
    Single-cell analysis of the chloroplast redox response to high light and oxidative stress revealed light-dependent heterogeneity, and was linked to cell fate determination within isogenic diatom populations.
    1. Cell Biology

    Intact protein folding in the glutathione-depleted endoplasmic reticulum implicates alternative protein thiol reductants

    Satoshi Tsunoda et al.
    Adapting a cytosolic enzyme that breaks down glutathione to function in the lumen of the endoplasmic reticulum challenges the long-held view that reduced glutathione fuels disulfide rearrangements during protein folding.
    1. Neuroscience

    Early dysfunction and progressive degeneration of the subthalamic nucleus in mouse models of Huntington's disease

    Jeremy F Atherton et al.
    In mouse models of Huntington's disease, the subthalamic nucleus, which suppresses movements, also exhibits impaired glutamate homeostasis, NMDA receptor-dependent mitochondrial oxidant stress, firing disruption, and 30% neuronal loss.
    1. Cell Biology
    2. Neuroscience

    Presenilin mutations deregulate mitochondrial Ca2+ homeostasis and metabolic activity causing neurodegeneration in Caenorhabditis elegans

    Shaarika Sarasija et al.
    In C. elegans, presenilin functions, independent of its gamma-secretase proteolytic activity, to regulate mitochondrial metabolism by controlling ER-mitochondrial calcium transfer and, even in the absence of Abeta signaling, loss of this activity leads to neurodegeneration.
    1. Neuroscience

    Reactive oxygen species regulate activity-dependent neuronal plasticity in Drosophila

    Matthew CW Oswald et al.
    Reactive oxygen species, previously considered damaging agents linked to pathology, are required for normal neuronal plasticity, including adjustment of synaptic terminal size, maintenance of synaptic physiology and adaptive behavioural responses.
    1. Cell Biology

    DNA damage induces nuclear actin filament assembly by Formin-2 and Spire-1/2 that promotes efficient DNA repair

    Brittany J Belin et al.
    An efficient response to DNA damage requires the assembly of actin filaments in the nucleus.
    1. Developmental Biology
    2. Neuroscience

    The laminar organization of the Drosophila ellipsoid body is semaphorin-dependent and prevents the formation of ectopic synaptic connections

    Xiaojun Xie et al.
    The organization of layered/laminated axon projections in specific regions of the fruitfly central brain is regulated by short-range repulsive guidance and is critical for local inhibitory circuit formation and function.

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