Editorial Expression of Concern to: Oncogene https://doi.org/10.1038/onc.2015.522, published online 25 January 2016

The Editors-in-Chief would like to alert the readers that an internal investigation by the H. Lee Moffitt Cancer Center has identified that Fig. 3a and b appear to have the same b-actin blots (stretched horizontally in b) representing different groups. Readers are therefore advised to interpret these results with caution.

M. Lauriola, D. Kim, M. Francesconi, G. D’Uva, D. Shibata, M. P. Malafa, T. J. Yeatman, D. Coppola and R. Solmi agree to this Editorial Expression of Concern. The publisher has not been able to obtain current email addresses for Y. Li and J. Q. Cheng.