Figure 4
From: A novel serum-free medium for the expansion of human mesenchymal stem cells
CFU-F assay of serum-free expanded human MSCs. (a) Representative images of 14-day CFU-F colonies initiated from (a) passage 2 SFM cultures (passage 7 total), (b) passage 2 SCM cultures (passage 7 total), and (c) passage 9 SFM cultures (passage 14 total). (b) Enumeration of CFU-F colonies (those ≥ 50 cells) at each respective passage. Data shown represent n = 5 technical replicates.