Figure 3From: Pathogen-free, plasma-poor platelet lysate and expansion of human mesenchymal stem cells Generation of regulatory T cells by MSC. Expression of CD4 + CD25+ and CD25 + FoxP3+ in PBMC 14-day cultured without (a, c) or with PI-PL3-derived MSC8 (b, d) at a ratio PBMC/MSC 5/1, showing nascent regulatory T cells at higher frequency in the presence of MSC.Back to article page