Fig. 4

(a and b) Representative fluorescence microscopic image of A549 and MDA-MB-468 cells treated with SBN and QCT alone or in combination. The image shows normal nuclei (1), fragmented and condensed nuclei (2), and dead cell nuclei (3) (×20 magnification). (c) Histogram depicting the percentage of apoptotic cells after treatment. Asterisk and number sign indicate p<0.05