Fig. 2.
In vitro functional assays of MPB CD34+cells isolated in G0 or in G1 phase of the cell cycle. (A) Progenitor cell assay. Numbers of hematopoietic colonies are given per 100 cells plated. Data shown are the mean ± SEM of four experiments performed in duplicate. Total indicates total number of hematopoietic colonies; BFU-E, burst-forming unit-erythroid; CFU-GM, colony-forming unit-granulocyte/macrophage; CFU-MIX, CFU-Mixed. (B) Frequencies of LTC-IC among G0 and G1CD34+ cells. Frequencies per 100 cells are reported as the mean ± SEM, n = 4. *P < .05 versus G1CD34+ cells, paired t-tests.