Figure 2.

Overexpression of miR-142-3p inhibits in vitro growth of NSCLC cells. A. NCI-H23 and NCI-H838 cells were transfected with miR-142-3p or miR-controls, respectively. qRT-PCR was used to measure the miR-142-3p expression after transfection. B, C. At 48 h after transfection, MTT assay was performed to determine the proliferation of NCI-H23 and NCI-H838 cells. Data represent the mean ± s.d. from three independent experiments. D. Representative results of colony formation of NCI-H23 and NCI-H838 cells transfected with miR-142-3p or miR-control. The results were reproducible in three independent experiments.