All proteins in the DM IFN-associated cluster were upregulated in DM patients compared to their matched healthy controls, while in the JDM cluster, B2M, CXCL9, CXCL10, GDF15, and TNFSF13 were upregulated compared to matched healthy controls (Supplementary Table 1). This evidence concerns the gene TNFSF13 and dermatomyositis.