Salivary gland epithelial cells (SGECs) in SS play active roles in the autoimmune and inflammatory responses by virtue of the constitutive or inducible expression of diverse immunoactive factors, such as BAFF, several Toll-like receptors (TLRs), and autoantigenic ribonucleoproteins (RNPs) [71, 72]. The gene discussed is TNFSF13B; the disease is synovial sarcoma.