Oxidative stress stimulates testicular orphan receptor 4 through forkhead transcription factor forkhead box O3a.
2008
phatidylinositol 3-kinase inhibitor induced TR4 expression; in contrast, suppression of FOXO3a by small interfering RNA can reduce oxidative stress-induced TR4 expression. The biological consequence of the FOXO3a-induced TR4 by oxidative stress is to protect against stress-induced cell death in which cells with reduced FOXO3a are less resistant to oxidative stress, and addition of functional TR4 can increase stress resistance. These results suggest that this new identified oxidative stress-FOXO3a-TR4 pathway is a fundamentally important mechanism regulating stress resistance and cell survival. (Endocrinology 149: 3490–3499, 2008)
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