FIG. 4.
Reversibility between side population (SP) and non-SP embryonic stem cell (ESC) populations. (A–E) Indirect immunofluorescence microscopy analysis of SSEA1 expression in cultures derived from non-SP cells. Scale bar, 100 μm. (E–F) Representative Hoechst profile of non-SP derived culture at passages 2 and 4. (G–H) Hoechst analysis of single-cell-derived cultures. (G): SP-derived culture. (H): Non-SP-derived culture. Y-axis: Hoechst red emission; X-axis: Hoechst blue emission. SP gate is shown in each panel.
