Addendum to: Nature Medicine https://doi.org/10.1038/nm.3667, published online 31 August 2014.

The editors would like to alert the readers that concerns have been raised regarding some of the data presented in the figures of this article. Specifically, in Figure 4c, lanes pAKT S473 and pS6 appear highly similar.

Due to the age of the article, the original data are no longer available for validation. Readers are therefore advised to interpret these results with caution.

The corresponding author has confirmed that Christine M. Lovly, Nerina T. McDonald, Heidi Chen, Sandra Ortiz-Cuaran, Lukas C. Heukamp, Yingjun Yan, Alexandra Florin, Luka Ozretić, Diana Lim, Lu Wang, Zhao Chen, Xi Chen, Paul K. Paik, Ronglai Shen, Hailing Jin, Reinhard Buettner, Sascha Ansén, Sven Perner, Michael Brockmann, Marc Bos, Jürgen Wolf, Masyar Gardizi, Gavin M. Wright, Benjamin Solomon, Prudence A. Russell, Toni-Maree Rogers, Yoshiyuki Suehara, Monica Red-Brewer, Rudy Tieu, Elisa de Stanchina, Qingguo Wang, Zhongming Zhao, David H. Johnson, Leora Horn, Kwok-Kin Wong, Roman K. Thomas, Marc Ladanyi and William Pao agree to this Editorial Expression of Concern. Pengcheng Lu could not be contacted regarding this Editorial Expression of Concern.