Fig. 2
From: Anticancer effects induced by artichoke extract in oral squamous carcinoma cell lines
Annexin V/PI double-staining assay of control SCC-25 (a) and SCC-25 cell lines treated with artichoke extract at 48 h. The Y-axis represents the PI-labeled population, whereas the X-axis represents the labeled annexin-V FITC-positive cells. The lower left portion of the fluoro-cytogram (An-, PI-) shows viable cells, whereas the lower right portion (An+, PI-) shows early apoptotic cells. The upper right portion (An+, PI+) shows late apoptotic cells, while the upper left portion (An-/PI+) demonstrates the percentage of necrotic cells