Inactivation of PI(3)K p110δ breaks regulatory T-cell-mediated immune tolerance to cancer (vol 510, pg 407, 2014)

Nature 510, 407–411 (2014); doi:10.1038/nature13444 Queen Mary University London notified Nature and University College London that there is reason to question the provenance of the data for Fig. 5b, d, e of this Letter (Fig. 5a, c data are unaffected). Ongoing studies are investigating the reportedeffect of p110δ inhibition in the pancreatic cancer mouse model.