PSMB9 and sarcoidosis: Reanalysis of a sarcoidosis scRNA-seq dataset revealed that, similar to NL and NXG, sarcoidosis lesional fibroblasts expressed high levels of MHC (e.g., HLA-B and HLA-DRA), CD74, PLOD2, STAT1, TNC, PRSS23, PSMB9, and CXCL9 (Supplemental Figure 7B).