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Effects of elastic moduli of the gels (Egel) on VEGF secretion of ASMCs. Human ASMCs were seeded on the collagen-conjugated polyacrylamide gels at a density 10,000 cells/cm2. VEGF secretion was evaluated with a human VEGF ELISA kit 72 h postseeding. TGF-β1 or TNF-α were added to stimulate VEGF secretion as indicated. Bars and error bars represent the means ± SD. *P < 0.05, statistically significant difference of values between indicated group pairs.
