title: Retraction.
abstract: This article has been retracted at the request of: Editor-in-Chief and Co-author 'COX-2 inhibitors suppress integrin α5 gene expression in human lung carcinoma cells through activation of Erk: involvement of Sp1 and AP-1 sites' by ShouWei Han and Jesse Roman The above article, published online on 11 April 2005 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the co-author, the journal Editor-in-Chief, Prof. Peter Lichter, and Wiley Periodicals, Inc. The Retraction has been agreed because serious errors related to image duplication were identified in some of the figures presented. An investigation found that the errors were performed by the first and corresponding author, ShouWei Han, without the knowledge of the co-author. ShouWei Han has not responded to requests by the journal or the co-author. Therefore, the co-author has requested the Retraction of this article and apologizes to the readers of the journal. Reference Han, S. and Roman, J. (2005), COX-2 inhibitors suppress integrin α5 expression in human lung carcinoma cells through activation of Erk: Involvement of Sp1 and AP-1 sites. Int. J. Cancer, 116: 536-546. doi: 10.1002/ijc.21125.