EEF1A2 and cancer: Furthermore, the STn antigens on mucins overexpressed in cancer cells create an immunosuppressive environment in which sialic acid-binding immunoglobulin (Ig)-like lectins (i.e., SIGLECs) on most of innate immune cells and NK cells bind to the STn antigen, leading to immunosuppression and evasion of immunosurveillance (Figure 2) [29,30,31,126,127,128].