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Fluorescence microscope map of U251 cells. U251 cells display green fluorescence after transfection with (A1) Lenti-EGFP-EGFR-miR, (B1) Lenti-EGFP-bFGFR-miR, (C1) Lenti-EGFP-EGFR-miR+Lenti-EGFP-bFGFR-miR, or (D1) Lenti-EGFP at 60 h. (E1) Blank control (A2, B2, C2, D2 and E2): phase contrast microscope (Original magnification, ×400). EGFP, enhanced green fluorescent protein; EGFR, epithelial growth factor receptor; miR, microRNA; bFGFR, basic fibroblast growth factor receptor.
