EXPRESSION OF CONCERN: Involvement of VILIP‐1 (Visinin‐Like Protein) and Opposite Roles of Cyclic AMP and GMP Signaling in In Vitro Cell Migration of Murine Skin Squamous Cell Carcinoma

EXPRESSION OF CONCERN: K. Schönrath, W. Pan, A. J. Klein-Szanto, and K.-H. Braunewell, “Involvement of VILIP-1 (Visinin-Like Protein) and Opposite Roles of Cyclic AMP and GMP Signaling in In Vitro Cell Migration of Murine Skin Squamous Cell Carcinoma,” Molecular Carcinogenesis 50, no. 5 (2011): 319–333, https://doi.org/10.1002/mc.20707. This Expression of Concern is for the above article, published online on 10 December 2010 in Wiley Online Library (wileyonlinelibrary.com), and has been issued by Wiley Periodicals LLC. The Expression of Concern has been agreed upon following concerns raised by a third party. An investigation identified duplication between the +1 μM KT5823 image included in Figure 6D and an image published subsequently in another journal by the same author group. Evidence of splicing was also identified in several western blots. The author acknowledged that the image in Figure 6D had been duplicated, but due to the length of time that has passed, was unable to provide the original data or explain with certainty how the duplication occurred. The authors also stated that several of the western blots in the study had been spliced without delineating the splice sites, a practice that was acceptable under the journal's standards at the time of publication. The journal has decided to issue an Expression of Concern to inform readers.