Editor's Note: Immortalization of Primary Human Prostate Epithelial Cells by c-Myc

The editors are publishing this note to alert readers to concerns about this article (1). We were informed by the authors that in Fig. 1B, the panels showing E7- and mdm2-expressing cells originated from the same picture of mdm2-expressing cells. In addition, in Fig. 2C, the Western blots showing hTERT and c-Myc expression were spliced but this was not indicated in the figure legend.