Fig. 3From: Role of MMP-9 in epithelial-mesenchymal transition of thyroid cancerEffects of MMP-9 on the migration of TC cells. a, b After adding TGF-β1, MMP-9 shRNA, and TGF-β1+ MMP-9 shRNA to TC cell lines, the wound healing ability of TC cells was observed. *Indicated P < 0.05, and ** indicated P < 0.01Back to article page