Epidermal homeostasis involves the intricate regulation and balance between proliferation of basal cells and theircommitmenttoterminallydifferentiate.Notchsignaling[18– 20] and AP-2a/AP-2c [21] have essential roles in epidermal developmentandpostnatalepidermaldifferentiation. C/EBPaandC/EBPbhavebeenshown...