5'-Nucleotidase Antigens, CD Apyrase Ascites; CD39 antigen CTLA-4 Antigen CTLA4 protein, human Cytokines EC 3.1.3.5 EC 3.6.1.5 FOXP3 protein, human Forkhead Transcription Factors GPI-Linked Proteins Immune suppression Journal Article LRRC32 protein, human Membrane Proteins NT5E protein, human Ovarian cancer; Receptors, Tumor Necrosis Factor, Type II Regulatory T cells; TNF receptor 2;