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Effect of BSE on A549 and H661 cell migration by wound healing assay. A549 and H661 were seeded into culture dishes and grown to 90% confluence in 6 cm dishes. The cells were scratched with a sterile tip, BSE (0, 10 and 20 μg/mL) were added and the wounded area were photographed at 0, 12, 18 and 24 h. The inhibitory effect on cell migration is expressed as the level of wound closure. A significant difference from the vehicle was indicated as *** p < 0.001 (Student’s t-test).
