IFNG and systemic lupus erythematosus: It is less well appreciated that IFNγ is also increased in some SLE patients (Csiszár et al., 2000; Harigai et al., 2008; Pollard et al., 2013) and that a distinct IFNγ transcription signature can be detected in PBMCs from a portion of SLE patients (Chiche et al., 2014; Welcher et al., 2015).