Figure 5. Oct4 is instrumental in propelling differentiation.
A. confirms Oct4 downregulation in Oct4 knockdown cells. The results of flow cytometric analysis of paraformaldehyde fixed cells are expressed as mean fluorescence of the entire population. B. 6 h after RA treatment a significantly greater number of cells (P<0.05) expressed CD38. C. Oxidative metabolism is enhanced in Oct4 knockdowns (p= 0.03). Flow cytometric assay of live cells was performed setting the logical gate to exclude 95% of the untreated cells (B. and C.) D. Oct4 downregulation increases the percentage of cells in G0 -with no treatment p =0.01 (c vs. d) or with RA treatment p=0.015 (a vs. b) at 48h. In RA treated cells, S is significantly lower in Oct4 knockdowns. (flow cytometry of PI labeled nuclei).