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Table 1 Analysis of growth factor concentration by ELISA in different PL and PI-PL preparations

From: Pathogen-free, plasma-poor platelet lysate and expansion of human mesenchymal stem cells

PL preparations PDGF-AB* (pg/ml) VEGF§ (pg/ml) bFGF° (pg/ml) TGF-beta1#(pg/ml)
PL1 42,778 ± 10,206 15,666 ± 1,257 94.6 ± 6.11 88,590 ± 3,169
PL2 32,071 ± 2,525 11,239 ± 673 111.6 ± 1.40 72,694 ± 3,245
PL3 26,272 ± 1,105 10,571 ± 514 91.3 ± 3.21 90,637 ± 533
PI-PL1 25,586 ± 1,281 11,276 ± 1,108 110 ± 10 63,512 ± 1,500
PI-PL2 35,140 ± 1,624 10,119 ± 827 118 ± 2.88 70,626 ± 2,013
PI-PL3 41,299 ± 2.041 11,187 ± 757 109 ± 3.60 90,188 ± 1.051
  1. PL platelet lysate, PI-PL pathogen inactivated platelet lysate, PDGF-AB platelet derived growth factor AB, VEGF vascular endothelial growth factor, bFGF basic fibroblast growth factor, TGF-beta1 transforming growth factor beta1; means ± standard deviations are shown of a triplicate assay performed to detect each growth factor concentration. *p = 0.937, §p = 0.119, °p = 0.009 (in favour of PI-PL), #p = 0.082 at unpaired two-tailed Student’s T test between concentrations observed in control PL and PI-PL lots.
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