» Articles » PMID: 19648934

Redox-sensitive Cysteines Bridge P300/CBP-mediated Acetylation and FoxO4 Activity

Abstract

Cellular damage invoked by reactive oxygen species plays a key role in the pathobiology of cancer and aging. Forkhead box class O (FoxO) transcription factors are involved in various cellular processes including cell cycle regulation, apoptosis and resistance to reactive oxygen species, and studies in animal models have shown that these transcription factors are of vital importance in tumor suppression, stem cell maintenance and lifespan extension. Here we report that the activity of FoxO in human cells is directly regulated by the cellular redox state through a unique mechanism in signal transduction. We show that reactive oxygen species induce the formation of cysteine-thiol disulfide-dependent complexes of FoxO and the p300/CBP acetyltransferase, and that modulation of FoxO biological activity by p300/CBP-mediated acetylation is fully dependent on the formation of this redox-dependent complex. These findings directly link cellular redox status to the activity of the longevity protein FoxO.

Citing Articles

The Biomarkers in Extreme Longevity: Insights Gained from Metabolomics and Proteomics.

Qiu X, Lu Y, Mu C, Tang P, Liu Y, Huang Y Int J Med Sci. 2024; 21(14):2725-2744.

PMID: 39512690 PMC: 11539388. DOI: 10.7150/ijms.98778.


Dietary phytochemical index and its relationship with diabetic sensorimotor polyneuropathy: a case-control study.

Asadi S, Shiva F, Mohtashamian A, Fallah M, Nourimajd S, Aminianfar A Sci Rep. 2024; 14(1):21688.

PMID: 39289442 PMC: 11408522. DOI: 10.1038/s41598-024-72602-w.


Epigenetic control of skeletal muscle atrophy.

Liang W, Xu F, Li L, Peng C, Sun H, Qiu J Cell Mol Biol Lett. 2024; 29(1):99.

PMID: 38978023 PMC: 11229277. DOI: 10.1186/s11658-024-00618-1.


Molecular and therapeutic advancements in Capicua ()-rearranged sarcoma.

Kriska M Ponce R, Luck C, Okimoto R Front Cell Dev Biol. 2024; 12:1416697.

PMID: 38882060 PMC: 11176417. DOI: 10.3389/fcell.2024.1416697.


Forkhead box O proteins: steering the course of stem cell fate.

Cheng M, Nie Y, Song M, Chen F, Yu Y Cell Regen. 2024; 13(1):7.

PMID: 38466341 PMC: 10928065. DOI: 10.1186/s13619-024-00190-1.


References
1.
Davies K . Protein damage and degradation by oxygen radicals. I. general aspects. J Biol Chem. 1987; 262(20):9895-901. View

2.
Obsilova V, Vecer J, Herman P, Pabianova A, Sulc M, Teisinger J . 14-3-3 Protein interacts with nuclear localization sequence of forkhead transcription factor FoxO4. Biochemistry. 2005; 44(34):11608-17. DOI: 10.1021/bi050618r. View

3.
Accili D, Arden K . FoxOs at the crossroads of cellular metabolism, differentiation, and transformation. Cell. 2004; 117(4):421-6. DOI: 10.1016/s0092-8674(04)00452-0. View

4.
Tothova Z, Kollipara R, Huntly B, Lee B, Castrillon D, Cullen D . FoxOs are critical mediators of hematopoietic stem cell resistance to physiologic oxidative stress. Cell. 2007; 128(2):325-39. DOI: 10.1016/j.cell.2007.01.003. View

5.
Kenyon C, Chang J, Gensch E, Rudner A, Tabtiang R . A C. elegans mutant that lives twice as long as wild type. Nature. 1993; 366(6454):461-4. DOI: 10.1038/366461a0. View