IFNG and synovial sarcoma: Ectopic expressions of CXC chemokines (CXCL9, CXCL10, CXCL11, and CXCL13), interleukins (IL-1/2/4/6/10/12/17/22/23), IFN-γ, and TNF-α occur in the minor salivary glands of SS patients as compared to healthy individuals [10, 11].