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Let-7b suppresses the invasion of osteosarcoma cells in vitro. (A) Representative images and (B) quantitative data of the invasion of U2OS cells following transfection with NC or Let-7b mimic. Non-transfected cells were used as a control. (C) Representative images and (D) quantitative data of the invasion of SAOS-2 cells following transfection with NC or Let-7b mimic. Non-transfected cells were used as a control. *P<0.05 vs. control. Magnification, ×20. NC, negative control.
