Retraction Note to: British Journal of Cancer https://doi.org/10.1038/bjc.2015.177, published online 19 May 2015

The Editor-in-Chief has retracted this article. After publication, concerns were raised regarding irregularities and highly similar patterns in Fig. 1A. Further checks by the Publisher found similar irregularities in Fig. 1C and supplementary Fig. S5D.

Due to the extent of these irregularities, the Editor-in-Chief no longer has confidence in the presented data.

E Karamitopoulou disagrees with this retraction. None of the other authors have responded to any correspondence from the Publisher about this retraction.