Concept

Cycle glutathion-ascorbate

Publications associées (29)

HaloTag-Based Tools for Live-Cell Imaging and Elucidation of Organellar Redox Biology

Redox homeostasis is a key factor in maintaining cellular function and health. The main determinant of the intracellular redox potential is ubiquitous glutathione (GSH) together with its oxidized dimer (GSSG). Importantly, both redox equilibrium and GSH ho ...

EPFL2024

A locally activatable sensor for robust quantification of organellar glutathione

Pablo Rivera Fuentes, Sarah Emmert, Gianluca Quargnali

Glutathione (GSH) is the main determinant of intracellular redox potential and participates in multiple cellular signalling pathways. Achieving a detailed understanding of intracellular GSH homeostasis depends on the development of tools to map GSH compart ...

NATURE PORTFOLIO2023

Disruption of mitochondrial redox homeostasis by enzymatic activation of a trialkylphosphine probe

Pablo Rivera Fuentes, Jade Noémie Nam Nguyen

Redox homeostasis is essential for cell function and its disruption is associated with multiple pathologies. Redox balance is largely regulated by the relative concentrations of reduced and oxidized glutathione. In eukaryotic cells, this ratio is different ...

ROYAL SOC CHEMISTRY2021

Therapeutic potential of glutathione-enhancers in stress-related psychopathologies

Maria del Carmen Sandi Perez, Sarah Catherine Sonnay, Fiona Hollis, Pascal Steiner, Ioannis Zalachoras, Eva Ramos Fernandez, Laia Morato Fornaguera

The mammalian brain has high energy demands, which may become higher in response to environmental challenges such as psychogenic stress exposure. Therefore, efficient neutralization of reactive oxygen species that are produced as a by-product of ATP synthe ...

2020

Disruption of redox homeostasis by enzymatic activation of a triakylphosphine probe in mitochondria

Pablo Rivera Fuentes, Jade Noémie Nam Nguyen

Redox homeostasis is essential for cell function and its disruption is assocd. with cancer, metabolic and neurodegenerative diseases. Redox balance is largely regulated by the relative concns. of reduced and oxidized glutathione. In eukaryotes, this ratio ...

2019

Redox dysregulation as a link between childhood trauma and psychopathological and neurocognitive profile in patients with early psychosis

Alessandra Griffa, Patric Hagmann, Kim Do

Exposure to childhood trauma (CT) increases the risk for psychosis and affects the development of brain structures, possibly through oxidative stress. As oxidative stress is also linked to psychosis, it may interact with CT, leading to a more severe clinic ...

National Academy of Sciences2018

Genetic Polymorphism Associated Prefrontal Glutathione and Its Coupling With Brain Glutamate and Peripheral Redox Status in Early Psychosis

Rolf Gruetter, Lijing Xin, Kim Do, Benoît Schaller, Huanxiang Lu

BACKGROUND: Oxidative stress and glutathione (GSH) metabolism dysregulation has been implicated in the pathophysiology of schizophrenia. GAG-trinucleotide repeat (TNR) polymorphisms in the glutamate-cysteine ligase catalytic gene (GCLC), the rate-limiting ...

Oxford University Press2016

Differential coral bleaching—Contrasting the activity and response of enzymatic antioxidants in symbiotic partners under thermal stress

Thomas Krüger

Mass coral bleaching due to thermal stress represents a major threat to the integrity and functioning of coral reefs. Thermal thresholds vary, however, between corals, partly as a result of the specific type of endosymbiotic dinoflagellate (Symbiodinium sp ...

Elsevier2015

Transcriptomic characterization of the enzymatic antioxidants FeSOD, MnSOD, APX and KatG in the dinoflagellate genus Symbiodinium

Thomas Krüger

Background The diversity of the symbiotic dinoflagellate Symbiodinium sp., as assessed by genetic markers, is well established. To what extent this diversity is reflected on the amino acid level of functional genes such as enzymatic antioxidants that play ...

BioMed Central2015

Antioxidant responses to heat and light stress differ with habitat in a common reef coral

Thomas Krüger

Coral bleaching—the stress-induced collapse of the coral–Symbiodinium symbiosis—is a significant driver of worldwide coral reef degradation. Yet, not all corals are equally susceptible to bleaching, and we lack a clear understanding of the mechanisms under ...

Springer Verlag2015

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