Fig. 24

A. H&E stained bone marrow stem cell smears prepared from a chemoablated mice (5-FU, 150 mg/Kg) after treatment on Days 4 & 5 with FSH (5 IU) and sacrificed on Day 6. One could see various types of cell divisions including ACD (blue circle), SCD (red circle) and clonal expansion. Insert shows that the cells enriched by 5-FU in the bone marrow express OCT-4 [57]. Scale: 20 μm