EAU was induced as described previously (Luger et al., 2008 (link)), with 150 µg IRBP emulsified in an equal volume of CFA containing 2.5 mg/ml Mycobacterium tuberculosis strain 37RA (Sigma-Aldrich) and 0.5 µg of Bordetella pertussis toxin. Some mice were treated with 0.5 mg of anti–IL-27 antibody (provided by J. Van Snick and C. Uyttenhoeve, Ludwig Institute for Cancer Research, Brussels, Belgium) or with isotype control antibody on days 0, 7, and 14. For depletion of NK cells and CD8+ cells, 0.2 mg of anti-NK1.1 antibody (PK136; Bioxcell) or 1 mg of anti-CD8 antibody (YTS169; Harlan), respectively, (or corresponding isotype controls) were injected on day 0, 3, and 6. Disease was evaluated by fundus examination on a scale of 0–4 based on the number, type, and size of lesions and extent of inflammation (Agarwal et al., 2012 (link)).