IL2 and cancer: In the presence of cancer patients’ monocytes, the cytotoxic function was suppressed both in autologous and allogeneic healthy NK cells when they were treated with IL-2 alone (Figure 2A and Figure S2A), or with IL-2 + anti-CD16 mAbs (Figure 2B and Figure S2B), or with IL-2 + sAJ2 (Figure 2C and Figure S2C) when compared to that of NK cells in the absence of monocytes.