Moreover, as epithelial‐mesenchymal transition (EMT) is essential for fueling invasion,23 we then examined the expression of EMT‐related proteins and found that MMP2 and Slug were downregulated, whereas E‐cadherin was upregulated in DDX24 knockdown NSCLC cells (Figure 2E). This evidence concerns the gene MMP2 and non-small cell lung carcinoma.