Research Article

Vernolactone Promotes Apoptosis and Autophagy in Human Teratocarcinomal (NTERA-2) Cancer Stem-Like Cells

Figure 8

Phase contrast light microscopic images captured at different time intervals—morphological changes of (a) untreated control, (b) vernolactone (2 μg/mL), (c) vernolactone (4 μg/mL), and (d) retinoic acid (ATRA) (3 μg/mL) (magnification 400x).