IL17A and autoimmune disease: In addition, the high expression of the exosomes-carried lnc-MDK-4:2 and lnc-FAM32A-2:1 (Figures 6(b) and 7) in both case populations probably implicates linking QDC to PQDS, because of their potential roles in regulating biosynthesis and metabolism in the recipient cells all over the body, especially the IL17-mediated signaling and autophagy initiation which contributed to host defense and pathogenesis of various autoimmune diseases.