PML and systemic lupus erythematosus: From our results, on one hand, the mRNA levels of STAT1, OAS1, OASL, and PML were both differentially expressed in IDC and SLE (Fig. 5A) by three bioinformatics tools including GEO2R (Fig. 2), the limma R package (Fig. 3), and WGCNA (Fig. 4).