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HPgV does not inhibit NK cell degranulation. PBMCs from HPgV positive or negative subjects were studied for K562 target cell-induced CD107a surface expression (a marker of degranulation) by flow cytometry. Representative gating for CD3−/CD56+/CD107a+ surface expression on NK cells is shown in panel A, and results from representative HPgV infected (B) and uninfected (C) subjects are shown.
