Fig. 3
Addition of miR-149 contributed to sensitivity of NB cells to Dox. a–d Cell viability was analyzed in SK-N-BE(2)C and SK-N-SH cells transfected with miR-149 or miR-NC after treatment of Dox by MTT. e, f Colony formation was investigated in SK-N-BE(2)C and SK-N-SH cells transfected with miR-149 or miR-NC after treatment of Dox. g, h Cell apoptosis was measured in SK-N-BE(2)C and SK-N-SH cells transfected with miR-149 or miR-NC after treatment of Dox by flow cytometry. **P < 0.01, compared with non-Dox (miR-NC or miR-149) group