POU5F1 and breast cancer: FACS analysis showed significantly increased levels of OCT4- (26.5-fold, p ≤ 0.001) in HCC70 (Figure 4(b)) and SOX2 (4.3-fold, p ≤ 0.01) -positive population of HCC1806 cells (Figure 4(c)) in NIC-treated breast cancer cells incubated with SAT compared to the cells plus SAT group.