Cytolytic activity mediated by TAP2^−/− NK cells against a panel of allogeneic PHA blasts.

Polyclonal NK cells derived from E.M.O. or from a healthy donor (C.B.) were assessed for cytolytic activity against PHA blasts derived from different donors in the absence (white bars) or in the presence (black bars) of anti-HLA class I mAb. The E:T ratio was 10:1.