Retraction to: Nature Communications https://doi.org/10.1038/ncomms15207 published online 10 May 2017

The Editors have retracted this article. After publication, concerns were raised regarding some of the images in the figures and supplementary information, specifically:

  • Fig. 1b 200 ng/ml–1 IFNy d2 appears highly similar to Fig. 3d Kyn removal d6 Kyn image;

  • Fig. 1b PBS IFNy+ d6 appears highly similar to Fig. S5 PBS d4;

  • Fig. 3d d4 and d6 Kyn images appear highly similar;

  • Fig. S2b and c most d4 images appear to overlap (representing different concentrations);

  • Fig. S2e IFNy d6 SG1 and SG2 appear highly similar.

  • A number of western blots in the figures appear to be different from the raw data included in the supplementary information.

Additionally, there appears to be a figure assembly error in Fig. 2e (HE d5/d10 vs x100/x400).

The Editors therefore no longer have confidence in the presented data.

Bo Huang does not agree to this retraction. None of the other authors have responded to any correspondence from the editor or publisher about this retraction.