One multicenter research reported that SLE patients with musculoskeletal activity and anti-β2 glycoprotein 1–positive patients were more likely to have anti-DFS70 antibodies, while those with anti-dsDNA, anti-SSA/Ro60, anti-SSB/La, or anti-U1-RNP antibodies were less likely to have anti-DFS70 antibodies (9). This evidence concerns the gene PSIP1 and systemic lupus erythematosus.