“…Ovarian cancer is often accompanied by ascites, which shows a highly variable molecular composition between EOC patients (128). Numerous immunosuppressive factors have been identified in ascites, including IL-10 (129-132), Fas ligand (133)(134)(135)(136)(137)(138)(139)(140), TNF-a (35,141,142), TGFb (130,132,143,144), VEGF (20-22, 35, 145, 146), B7-H1/PD-L1 (29,31,147), B7-H4 (60,(148)(149)(150), SDF-1 (151), EBAG9/RCAS1 (152)(153)(154), and soluble IL-2 receptor (155)(156)(157). Thus, the contribution of various immunoregulatory factors to the composition and function of TILs is a complex issue.…”