MT1-MMP transcript levels after BSP stimulation. MDA, MCF7, T47D, or HT1080 cells were seeded on native BSP (blue bars) or poly-L-Lysine (grey bars) coated on an ELISA plate. Total RNA was reverse transcribed and subjected to qPCR analysis using specific primers for MT1-MMP. Results were normalized as fold increase over cells seeded on poly-L-Lysine and expressed as mean ± SEM (n = 3). From the comparison no significant differences (p > 0.2) in the MT1-MMP transcript level were observed between cells grown on BSP and cells grown on poly-L-Lysine.