Fig. 1

a qRT-PCR analysis of seven angiogenic genes: VEGF, HGF, SDF-1, Ang-1, IL-6, IL-8 and TGF-β1 in six batches of phBMMSCs. Relative fold expression was depicted after normalization to the housekeeping gene β-Actin as an internal standard and subsequent normalization using human foreskin fibroblast (HFF) cells for the same genes. b Secretome analysis of control medium and phBMMSC CM using 41 growth factor antibody arrays detected by chemiluminescence; a few detected growth factors marked in boxes. c Quantification of seven selected angiogenic growth factors/cytokines using human-specific ELISAs in same six batches of phBMMSCs. d Quantification of VEGF by ELISA in CM from five batches of phBMMSCs from P4 to P7; one-way ANOVA revealed no significant difference in VEGF levels between P4 and P7, p = 0.699. Data presented as mean ± SEM. SEMs shown as error bars. phBMMSC pooled human bone marrow derived mesenchymal stromal cell, Ang-1 angiopoietin-1, SDF-1 stromal-derived factor-1, bFGF basic fibroblast growth factor, HGF hepatocyte growth factor, IL interleukin, TGFβ1 transforming growth factor beta-1, VEGF vascular endothelial growth factor