Fig. 5From: Regulation of intracellular transition metal ion level with a pH-sensitive inorganic nanocluster to improve therapeutic angiogenesis by enriching conditioned medium retrieved from human adipose derived stem cellsEnhanced angiogenic potency of hADSCs treated with ps-TNCs. a–c Concentration-dependent angiogenic gene expression with different treatment times, quantified by qRT-PCR. (n = 4, *p < 0.05, #p < 0.01 compared to the untreated group). Concentration-dependent (d) VEGF and (e) bFGF gene expression evaluated by RT-PCR. Duration of (f) VEGF and (g) bFGF expression in hADSCs after ps-TNC treatment for 12 h (n = 3, #p < 0.01 and *p < 0.05 compared to the untreated group). h The profile of angiogenesis-related protein in conditioned medium using human angiogenesis antibody arrayBack to article page