RETRACTION: S. O. Lee, J. Y. Chun, N. Nadiminty, W. Lou, S. Feng, and A. C. Gao, “Interleukin‐4 Activates Androgen Receptor Through CBP/p300,” The Prostate 69, no. 2 (2009): 126–132, https://doi.org/10.1002/pros.20865 . The above article, published online on 25 September 2008 in Wiley Online Library ( http://onlinelibrary.wiley.com/ ), has been retracted by agreement between the journal Editor‐in‐Chief, Dr. Samuel Denmeade; and Wiley Periodicals LLC. The publisher received a report from a third party which indicated that the Pol II bands had been duplicated between Figures 1A and 1B. This image duplication was confirmed by the publisher. The report also indicated that images had been reused between Figure 1 in this article and Figure 3 in the following article by some of the same authors: (Chun et al. 2006 [ 10.1158/1535‐7163.MCT‐05‐0389 ]). Both articles describe different experimental conditions. The authors responded to an inquiry by the publisher but reported that the original data were no longer available and did not provide an explanation for the evidence of image duplications. The retraction has been agreed to because the evidence of image duplications both in this article and with other published research fundamentally compromises the results described in this article. The authors did not respond to our notice regarding the retraction.