ANXA4 and synovial sarcoma: The same study found multiple other deregulated proteins in the saliva or tears of SS patients that were either directly homolog or highly similar to significant proteins in our study as well (upregulated DnaJC3, Hspa1a, Annexin A1, Annexin A4 in SS patient EVs from whole saliva and Annexins A4, A6, A9 and Hsp74 in SS patient tear fluid).