We found that IFIT4 mRNA relative expression correlated with ANA titre in 108 SLE patients (r = 0.4783, P < 0.001; Figure 2a), and with anti-dsDNA autoantibody titre in 36 SLE patients (r = 0.3932, P < 0.05; Figure 2b), and with anti-Sm antibody titre in seven SLE patients (r = 0.9088, P < 0.01; Figure 2c). The gene discussed is IFIT3; the disease is systemic lupus erythematosus.