Various autoantibodies, such as anti-SS-A (Ro), anti-SS-B (La), anti-α-fodrin, anti-M3 muscarinic acetylcholine receptor (anti-M3R), anti-histone and anti-transglutamine are detected in serum or saliva fluids of patients with SS [4], [8]–[10]. This evidence concerns the gene SSB and synovial sarcoma.