Figure 2. CSCs in Msi-1 knockdown BCCs. MDA-MB-231 with stable pOct4a-GFP was knockdown for Msi 1 (A) and then analyzed for Oct4ahi cells (B). The mean±SD percentages of Oct4ahi cells in the knockdown and vector (with scramble shRNA) transfected BCCs are presented for four different experiments (C). * p<0.05 vs. vector alone. The mean±SD percentages of tumorspheres for the Msi 1 knockdown and vector controls are presented for three different experiments (D). * p<0.05 vs. Msi 1 shRNA.