CD47 expression on B and T cells did not differ between SLE patients and HCs; however, CD47 expression on SLE monocytes was higher than that on HC monocytes (mean fluorescence intensity (MFI) ± SD: 815.9 ± 269.4 vs. 511.5 ± 199.4, respectively; p < 0.001) (Figure 1B). This evidence concerns the gene CD47 and systemic lupus erythematosus.