Human Fetal Liver: An In Vitro Model of Erythropoiesis

Figure 2

Colony formation of FL-derived erythroid cells. The colony forming ability of FL-derived erythroid cells was measured on days 3, 8, and 10 of liquid culture. Aliquots of nonadherent cells were grown in methylcellulose medium in the presence of SCF, GM-CSF, IL3, and erythropoietin. CFU-E colonies were counted on day 7 and BFU-E, CFU-GM, and CFU-mix colonies on day 14 of semisolid culture.