Nat. Med. 23, 878–884 (2017); published online 19 June 2017; corrected after print 13 March 2018

In the version of this article initially published, there were several instances of duplication of confocal microscopy images presented in Figures 1e, 3i and 4c,h,j. These errors occurred during the final preparation of the figures, when representative images were selected to illustrate the results obtained from multiple independent experiments. To ensure that these errors did not affect the paper's conclusions, the authors verified all raw data used to quantify the results. The results presented in the original Figures 3j and 4d were not affected, but the quantification in Figure 4i was. This quantification was performed again, and the results supported the original conclusions of the paper. In addition, the western blot shown in Figure 3d came from a different replicate experiment than the one represented in Supplementary Figure 9g,h (which shows the raw data). The original blot has been replaced with the correct blot that matches the raw data originally provided. The conclusions of this experiment remain unchanged. All affected images have been now corrected in the HTML and PDF versions of the article.