Furthermore, RT‐qPCR depicted that circDHTKD1 exhibited upregulation in H1299 and A549 cells under EIF4A3 knockdown whereas exhibited downregulation under EIF4A3 overexpression, meanwhile, DHTKD1 showed no level change in NSCLC cells (Figure 2F,G), suggesting that EIF4A3 exerts a positive regulation on circDHTKD1 rather than DHTKD1. Here, EIF4A3 is linked to non-small cell lung carcinoma.