Association between CXCL10, IFN score, and therapy. Data were analyzed as in Figure 6 except that CCL2 was substituted by CXCL10. (A) The relationship of CCL2 versus IFN score presented as a slope was analyzed in untreated (UTX, black) and treated SLE patient visits (Tx, green). Similar analyses were carried out for PDN-treated (C), MMF-treated (E), and HCQ-treated patient visits (G) as well as for high STAT1 (blue) and low STAT1 (red) for Tx (B), PDN-treated (D), MMF-treated (F), and HCQ-treated patient visits (H). CCL2, C-C motif chemokine ligand 2; CXCL10, C-X-C motif chemokine 10; HCQ, hydroxychloroquine; IFN, interferon; MMF, mycophenolate mofetil; PDN, prednisone; SLE, systemic lupus erythematosus; SLEDAI, SLE disease activity index; STAT1, signal transducer and activator of transcription 1.