PLK1 and non-small cell lung carcinoma: In the present study, we set out to detect the expression of miR-100 in NSCLC tissues and analyze its correlation with clinicopathological factors or prognosis of NSCLC patients, and post-transcriptional regulatory relation between miR-100 and PLK1 in NSCLC cells, which will provide one day a potential molecular therapeutic target for human NSCLCs.