Of the 27 genes, there were only 6 that were ASyS/Jo1-specific (CXCL8, CCL20, CCL3L3, CD28, CCL3, and CSF2), with many overexpressed genes shared with the IBM (15), DM (8), and PM/Scl (6) groups. This evidence concerns the gene CXCL8 and dermatomyositis.