Inhibition of ZEB2 leads to decreased proliferation of MV4-11 cells. (A) Expression of ZEB2 mRNA in MV4-11 and B-ALL1 cell lines. (B) Inhibition of ZEB2 mRNA expression in MV4-11 cell line by siRNA leads to decreased proliferation. (Inset) ZEB2 quantitative RT-PCR assay at 24 hours. (C) Treatment of B-ALL1 cell line with ZEB2 siRNA does not lead to decreased proliferation. Quantitative RT-PCR values are plotted as minimum/maximum values from triplicate assays. *P < .03. ***P < .001. Error bars for 120-hour Zeb2 siRNA time point are very small and not visible.