Abstract
Prostate-derived Ets factor (PDEF) is a relatively recently described member of the Ets family of transcription factors. It differs from other family members in its restricted and epithelial-specific expression in normal tissues and its unique DNA-binding motif that together may impart interesting specificity to its function. This communication reviews our current understanding of the expression characteristics of PDEF in normal prostate and in prostate cancer. Also, the biochemical and genetic evidence relating to the role of this transcription factor in prostate cancer is reviewed. Most evidence is consistent with an oncogenic role for PDEF in prostate cancer. Specific observations about the loss of PDEF expression in prostate tumors and its apparent role as a prostate tumor suppressor are also discussed. PDEF is one of the few transcription factors with potential to have a significant impact on the management of prostate cancer. A better understanding of its biology and its role in prostate cancer is urgently needed.
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