AKR1C1 and nasopharyngeal carcinoma: To investigate the effect of AKR1C1 knock‐down on cisplatin‐induced cell apoptosis, si‐ctrl and si‐AKR1C1 transfected NPC cells (CNE1 & CNE2) were treated with cisplatin for 48 hours and then assayed by flow cytometry for calculating apoptotic cells (Figure 5A and 5B).