Retraction

The following article from Cancer Science: Kanno R, Janakiraman H, Kanno M. Epigenetic regulator polycomb group protein complexes control cell fate and cancer, Cancer Science 2008; 99: 1077–1084, (doi: 10.1111/j.1349‐7006.2008.00797.x), published online on 14 April 2008 on Blackwell Synergy (http://www.blackwell‐synergy.com), now Wiley Interscience (http://www.interscience.wiley.com), has been retracted by agreement between the authors, the journal Editor in Chief, Takashi Tsuruo, and Blackwell Publishing. All authors wish to retract this paper because the authors copied extensive amounts of texts, tables, and figures from other articles.