Fig. 3From: DNA damage and apoptosis induced by a potent orally podophyllotoxin derivative in breast cancerEffect of XWL-1-48 on cell cycle in breast cancer. MCF-7 (a, c) or MDA-MB-231 (b, d) cells were treated with XWL-1-48 (1, 3, 10 μM) and GL331 (10 μM) for 24 h, then cells were harvested, fixed and stained with PI for flow cytometry; Data were shown as mean ± SD of three independent experimentsBack to article page