Fig. 5

Fluorescence microscopic images of control U937 (a), K562 (c), GNP-NKCT1 treated U937 (b), treated K562 (d) cell line. The control cells gave bright green fluorescence for their intact nuclei whereas both treated cell line red fluorescence showing signs of apoptosis. Confocal microscopic images of control U937 (e and i), K562 (g and k) and GNP-NKCT1 treated U937 (f and j), treated K562 (h and l) cell lines. The treated cells indicated apoptotic changes like nuclear disintegration, membrane disruption. e–h Cells stained with propium iodide and i to l are cells stained with DAPI