Among SLE patients, circulating sMICA concentrations were higher in patients positive for anti-SSB (Table 3, p <0.01, two-tailed Mann Whitney test) or anti-RNP (Table 4, p <0.05, two-tailed Mann Whitney test) antibodies than SLE patients negative for these antibodies. Here, RNPC3 is linked to systemic lupus erythematosus.