Interestingly, FOXM1 knockdown did not lead to changes in the expression of pyruvate dehydrogenase in either HONE‐1 or C666‐1 NPC cells (Figure 3M), strongly supporting that diminished pyruvate dehydrogenase E1‐α phosphorylation was driven by the previously observed effect of FOXM1 knockdown on PDK1 expression. This evidence concerns the gene DHTKD1 and nasopharyngeal carcinoma.