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Nature Cell Biology 10, 125–126 (1 February 2008) | doi:10.1038/ncb0208-125

ERK and MDM2 prey on FOXO3a

Wensheng Yang , Nathan G. Dolloff & Wafik S. El-Deiry

Twenty years ago, spontaneously transformed mouse cells were shown to overexpress murine double minute gene (mdm2), a finding that led to further studies examining the role of the MDM2 protein in tumorigenesis. Today, MDM2 is regarded as a critical oncoprotein that regulates expression and activity of tumour-suppressor proteins, such as the gatekeeper of the genome, p53 (Refs 1, 2).