Retraction Note to: British Journal of Cancer https://doi.org/10.1038/bjc.2016.451, published online 12 January 2017

The authors have retracted this article due to concerns regarding image overlap identified in several figures. Specifically, there is partial overlap in the Western blot bands of MMP2 and control β-actin between BGC-823 and MGC-803 cells in Figure 6A, as well as partial overlap in the siRNA apoptosis images of GES-1 and HGC-27 in Supplementary Figure 2. Further review confirmed that an apoptotic image of HGC-27-siRNA was mistakenly duplicated for GES-1-siRNA.

All authors agree with this retraction.