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MCF-7 cells transduced by lentivirus after puromycin selection (×200). (a), (c), and (e) Light microscopy of Lv-miR-451a NC, Lv-miR-451a, and Lv-miR-451a sponge; (b), (d), and (f) fluorescent microscopy of Lv-miR-451a NC, Lv-miR-451a, and Lv-miR-451a sponge. All the cells with ZsGreen expression and the stable cell lines were obtained (note: NC means negative control; Lv means lentivirus).
