Fig. 2.
Ex vivo expanded hematopoietic cells are actively cycling.
The proportion of nucleated cells in G0/G1 or S/G2/M phases of the cell cycle was determined by HO staining of (A) normal murine BM, (B) Sca-1+c-kit+Lin+ cells isolated from day 1 post–5-FU BM, or (C) these cells' progeny generated after ex vivo expansion. Numbers in each panel represent the mean ± SEM of 3-9 measurements per population. The horizontal bars (C) represent the gates used for sorting expanded cells into G0/G1 or S/G2/M fractions prior to transplantation.