EXPRESSION OF CONCERN : Selective Upregulation of Interleukin‐8 by Human Rhabdomyosarcomas in Response to Hypoxia: Therapeutic Implications

EXPRESSION OF CONCERN: M. Wysoczynski, D.-M. Shin, M. Kucia, and M. Z. Ratajczak, "Selective Upregulation of Interleukin-8 by Human Rhabdomyosarcomas in Response to Hypoxia: Therapeutic Implications," International Journal of Cancer 126, no. 2 (2010): 371-381, https://doi.org/10.1002/ijc.24732. This Expression of Concern is for the above article, published online on 8 July 2009 and available in Wiley Online Library (wileyonlinelibrary.com), and has been published by agreement between the journal Editor-in-Chief, Prof. Christoph Plass; the Union for International Cancer Control; and John Wiley & Sons Ltd. The Expression of Concern was agreed due to concerns raised by a third party after publication regarding an overlap between the "RH30" and "RH30 scrambled" panels in Figure 5d. The corresponding author confirmed the overlap in Figure 5 but could not provide the original data given the time that had elapsed. An investigation by the University of Louisville concluded that there was no evidence of misconduct and that the overlap likely resulted from an inadvertent error during manuscript preparation. However, the journal is issuing this Expression of Concern because the concerns regarding the integrity of the data and the results presented cannot be resolved. The authors M. Z. Ratajczak and M. Wysoczynski agree to this Expression of Concern. D.-M. Shin and M. Kucia were not reachable.