DLX6 and endometrial cancer: Subsequently, RT‐qPCR was performed to determine the DLX6‐AS1 expression in endometrial cancer cell lines, results of which revealed significantly higher DLX6‐AS1 expression in endometrial cancer cell lines (RL‐952, HEC‐1‐B, HEC‐1‐A, HHUA and HEC‐251) when compared with endometrial cells (PA), of which RL‐952 cell line exhibited the highest DLX6‐AS1 expression and HHUA cell line had the lowest expression (P < 0.05; Figure 1C).