Fig. 6From: Influence of platelet storage time on human platelet lysates and platelet lysate-expanded mesenchymal stromal cells for bone tissue engineeringMorphology and proliferation kinetics of BMSCs in HPL from PCs stored for 0–4 months (m). a Morphology of BMSCs at passage 2 (representative images from one donor), scale bar 100 μm. b Proliferation kinetics over three serial passages (P1–3) and DNA content after 7 and 14 days (d). Data represent means ± SD (n = ≥ 4 donors). PD, population doubling rate; CPD, cumulative population doublings; PDT, population doubling timeBack to article page