RT‐qPCR identified a higher MEG3 expression and lower miR‐21 expression in xenograft tumours from nude mice injected with the oe‐MEG3‐transfected NPC cells, as compared to nude mice with the oe‐NC‐transfected NPC cells (P < .05) (Figure 6C). Here, MEG3 is linked to nasopharyngeal carcinoma.