Fig. 4From: Functional capacity of natural killer cells in HTLV-1 associated myelopathy/tropical spastic paraparesis (HAM/TSP) patientsRepresentative flow plots for cytokine staining and cytotoxic molecules of NK cells. Lymphocyte gate (A). Selected NK cells (CD3−CD56+) (B). Representative flow plots showing expression of IFN-γ (C), (CD107a (D), granzyme B (E) and perforin (F) by NK cells from one representative individual with HAM/TSP, an asymptomatic HTLV-1-infected individual (AS) and one uninfected control (CTR), cultured in the presence of K562 for 6 h. Pink dot plots represent specific–stained population and blue dot plots represent background fluorescence observed with matched isotype control. Results reflect one representative experiment out of six independent experiments performedBack to article page