Figure 2From: Differential effects of arsenic trioxide on chemosensitization in human hepatic tumor and stellate cell lines ATO induces apoptosis of LX2 cells. HepG2 and LX2 cells were untreated or incubated in the presence of 5 μM or 25 μM ATO for 24 hrs. Apoptotic cells were determined by propidium iodide staining and FACS analysis. The red arrow indicates the sub –G1 peak which represents an early apoptotic cell population. A representative example of three independent experiments is shown.Back to article page