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Cell migration velocities on E-cadherin substrata (BSA backfill). The velocities of parental 231 cells (filled squares) and 231-Tet cells induced with 1 µg/ml and 100 µg/ml doxycycline (filled triangles and filled circles, respectively) were determined as a function of the E-cadherin surface density. As a control, 1 µg/ml induced 231-Tet cells were incubated with E-cadherin antibodies for 30 minutes prior to seeding (open triangles).
