(A) Effects of TSA treatment on the relative transcript level of genes (GATA1, GATA2, NOTCH1, BMI1, HOXB4, SALL4, PU.1, PU.1, PTEN, BCL2, c-MYC, and MPO) were measured by real-time quantitative PCR. Total RNA was extracted from cells obtained after 3 days of culture in the presence of cytokines with TSA or DMSO. GAPDH was used as internal calibrator (control gene). Measurements were obtained in duplicate using at least 2 independent samples. (B) TSA treated CD34+CD90+ cells and CD34+CD90− cell were sorted and the expression levels of GATA1, GATA2, HOXB4, and SALL4 were analyzed. Measurements were obtained in duplicate using at least 2 independent samples. Error bars indicate SE; * indicates p<0.05.