Indeed, in the current study, our results revealed elevated levels of Th1 type cytokines, namely IL-2, IFN-γ, IL-12, and IP10, and Th2 type cytokine IL-4, in the tear fluid of pSS patients, when compared to both non-SS sicca subjects and healthy individuals. The gene discussed is CXCL10; the disease is synovial sarcoma.