Forkhead box O3A (FOXO3A) is a member of the forkhead family of transcription factors (FOXO), which play an important role in cellular proliferation, metabolism, stress tolerance, and aging. FOXO transcription factors have a characteristic forkhead domain and are located in the cytoplasm. Upon oxidative stress, FOXO3A translocates to the nucleus where binding to the DNA sequence 5鈥