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Effect of 500 nM to 50 µM of synthetic ancorinoside B (2; AncB) on the secretion of MMP-9 (A), the secretion of MMP-2 (B), and the expression of MMP-2 (C) in 518A2 melanoma cells; large error bars in C are due to blurry electrophoresis bands. DMSO (0 µM) served as a control.
