TIMP1, TIMP2, and batimastat were from Sigma-Aldrich. Rabbit anti-MMP14 (hinge region) and mouse anti–integrin β1 antibodies were from Abcam (Cambridge, MA). Mouse anti-cortactin antibody was from Millipore (Billerica, MA). Rabbit anti–p-c-Src (Tyr-419) antibody and Src family kinase inhibitors Dasatinib and SU6656 were from Santa Cruz Biotechnology (Santa Cruz, CA). DQ collagen, Oregon Green 488–conjugated gelatin, mouse anti–cadherin-11, mouse anti–α-catenin, and mouse anti–β-catenin antibodies, Alexa Fluor–conjugated anti-mouse, anti-rat, and anti-rabbit secondary antibodies, and Alexa Fluor–conjugated phalloidin were from Invitrogen. Mouse anti–p120-catenin antibody was from BD Biosciences (San Jose, CA). Mouse anti–cadherin-11 (3H10) was previously raised in this laboratory (Valencia et al., 2004 (link)). DRAQ5 was from Cell Signaling (Danvers, MA). Human phosphokinase antibody array was from R&D Systems (Minneapolis, MN).