"Data confirm that C1D is not directly involved in repair of UV-damaged DNA; C1D appears to protects cells from oxidative stress (induced by UV irradiation or hydrogen peroxide oxidation) by regulating expression of DNA repair/transcription enzymes such as APEX1 or DDIT3. (C1D = nuclear receptor corepressor C1D; APEX1 = apurinic/apyrimidinic endodeoxyribonuclease-1; DDIT3 = DNA damage inducible transcript-3)"xsd:string