Figure 9.

Colony forming unit assays after Dlk1⁺ cell depletion. CFU assays of Dlk1-negative human fetal liver-derived cells in five days preculture with Dlk1⁺ cells in direct contact (black bars), without Dlk1⁺ cells (white bars), or with Dlk1⁺ cells in inserts (grey bars). Data are given as means from n = 4 different repeats ± standard deviation. ^∗ and ^∗∗ indicate statistically significant differences (p ≤ 0.05 and ^∗∗p ≤ 0.01, respectively). Abbreviations: CFU-E: colony forming unit-erythrocyte; BFU-E: burst forming unit-erythrocyte; CFU-GM: colony forming unit-granulocyte and macrophage; CFU-GEMM: colony forming unit-granulocyte, erythrocyte, macrophage, and megakaryocyte.