Temporal coordination of the transcription factor response to H2O2 stress

Elizabeth Jose, Woody March-Steinman, Bryce A. Wilson, Lisa Shanks, Chance Parkinson, Isabel Alvarado-Cruz, Joann B. Sweasy and Andrew L. Paek ()
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Elizabeth Jose: University of Arizona
Woody March-Steinman: University of Arizona
Bryce A. Wilson: University of Arizona
Lisa Shanks: University of Arizona
Chance Parkinson: University of Arizona
Isabel Alvarado-Cruz: University of Arizona College of Medicine
Joann B. Sweasy: University of Arizona College of Medicine
Andrew L. Paek: University of Arizona

Nature Communications, 2024, vol. 15, issue 1, 1-17

Abstract: Abstract Oxidative stress from excess H2O2 activates transcription factors that restore redox balance and repair oxidative damage. Although many transcription factors are activated by H2O2, it is unclear whether they are activated at the same H2O2 concentration, or time. Dose-dependent activation is likely as oxidative stress is not a singular state and exhibits dose-dependent outcomes including cell-cycle arrest and cell death. Here, we show that transcription factor activation is both dose-dependent and coordinated over time. Low levels of H2O2 activate p53, NRF2 and JUN. Yet under high H2O2, these transcription factors are repressed, and FOXO1, NF-κB, and NFAT1 are activated. Time-lapse imaging revealed that the order in which these two groups of transcription factors are activated depends on whether H2O2 is administered acutely by bolus addition, or continuously through the glucose oxidase enzyme. Finally, we provide evidence that 2-Cys peroxiredoxins control which group of transcription factors are activated.

Date: 2024
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DOI: 10.1038/s41467-024-47837-w

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