Figure 7From: Pathogen-free, plasma-poor platelet lysate and expansion of human mesenchymal stem cells Cryopreserved MCS expansion by Pl or PI-PL. Re-expansion of cryopreserved MSC11,12,170,180 and 082 by control PL1, PL18 and PI-PL1, PI-PL18 expressed as doubling time (DT) observed between passage 3 (P3) and 4 (P4). Two-tailed paired Student’s T test performed between PL1 versus PI-PL1 and PL18 versus PI-PL18 lots shows no significant differences.Back to article page