FCGR3A and hepatocellular carcinoma: Of the three HCC patients tested, CD16 expression was not significantly higher on KIR2DS2high NK cells compared to KIR2DL3/L2high and KIR2DL3/L2/S2- NK cells (Figures 1K, L), indicating that the enhanced ADCC of the KIR2DS2high population was not simply due to greater expression of CD16.