Figure 3From: The effect of nilotinib plus arsenic trioxide on the proliferation and differentiation of primary leukemic cells from patients with chronic myoloid leukemia in blast crisis Effects of ATO and nilotinib on hemoglobin content. Cells were treated with 1 μM ATO and 5 nM nilotinib alone or in combination for 72 h. Then, cell samples were stained with benzidine. (A) The percentage of benzidine-positive cells was calculated. **P < 0.01 vs. control. (B) Representative data of benzidine staining (x200 magnification).Back to article page