IL2 and colorectal carcinoma: To investigate the impact of the IL2, PC, and G2 adjuvants on NK cells in normal and CRC PBMC, NK cells surface markers (CD3-, CD16+, CD56+, and NKG2D+) were measured in the PBMC, PBMC+IL2, PBMC+PC, PBMC+G2 groups (Figure 1).