DLX4 and non-small cell lung carcinoma: Using multiple in vitro assays, such as CCK-8 and colony formation and FCM assays, our results demonstrated that DLX4 knockdown suppressed cell viability and stimulated the cell cycle arrest of two types of NSCLC cells, including NCI--H2170 and A549 cells, suggesting that DLX4 could affect the progression of NSCLC.