IFNA1 and synovial sarcoma: Notably, some genes that were repressed under normal circumstances in SS patients, especially those associated with IFN signaling, were up-regulated following CL097 stimulation, such as the cytokines IL-12A, IFNA1, IFNB1, IFN-γ and the IFN-γ-inducible chemokine CXCL10.