The mMer levels on cell surfaces of CD14+ monocytes/macrophages were significantly increased in SLE patients than in healthy controls (n = 42, 27.15 ± 2.88 versus n = 25, 8.84 ± 1.35, P < 0.001) as presented in Figure 2(b). Here, CD14 is linked to systemic lupus erythematosus.