期刊
IUBMB LIFE
卷 74, 期 1, 页码 53-61出版社
WILEY
DOI: 10.1002/iub.2542
关键词
antioxidant strategies; C; elegans; stress signaling; Nrf2; diethyl maleate; glutathione; hormesis
资金
- Deutsche Forschungsgemeinschaft [RTG 2155]
FOXO family proteins are crucial transcriptional regulators that modulate cellular metabolism and antioxidant defense strategies. They regulate the expression of antioxidant genes to contribute to cellular response to oxidative stress.
Forkhead box, class O (FOXO) family proteins are widely expressed and highly conserved transcriptional regulators that modulate cellular fuel metabolism, stress resistance and cell death. FOXO target genes include genes encoding antioxidant proteins, thus likely contributing to the key role FOXOs play in the cellular response to oxidative stress and supporting the cellular strategies of antioxidant defense, that is, prevention (of the formation of reactive oxygen species), interception (of reactive species prior to their reaction with cellular components), repair (of damaged biomolecules), and adaptation (i.e., the stimulation of signaling pathways allowing for the expression of protective proteins). FOXOs themselves are regulated by redox processes at several levels, including expression of FOXO genes and enzymatic as well as nonenzymatic posttranslational modifications of FOXO proteins. The latter include modifications of FOXO cysteine residues. Here, an overview is provided on (i) the contribution of FOXO target genes to cellular antioxidative strategies, and (ii) on the impact of thiol homeostasis and thiol modification on FOXO activity.
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