Fig. 1

Platelet lysate lot testing. a MSCs growth assay with different platelet lysate lots. Two MSCs cell lines for each source (BM, UCT, AT) were used to test the growth promotion ability and variability of eight different PL lots (PL1–PL8). MSCs proliferation was evaluated at passage 1 (P1) and passage 2 (P2). b Coefficient of variation percentage related to the eight different PL lots (PL1–PL8) in BM-MSCs, UCT-MSCs, and AT-MSCs cultures at P1 and P2. Results are expressed as mean ± SD (standard deviation). (F = 0.479 and p = 0.847 at ANOVA and p > 0.900 for any post hoc comparison at Scheffe test) AT adipose tissue, BM bone marrow, MSCs mesenchymal stromal cells, UCT umbilical cord tissue