Relative to the three SCLC cell lines, EZH2 mRNA expression levels decreased in most NSCLC cells other than RERF‐LC‐AI and NCI‐H1975 cells, whereas those of E‐cadherin mRNA increased in most NSCLC cells other than RERF‐LC‐AI, Sq‐5 PC3, and NCI‐H1299 cells. The gene discussed is EZH2; the disease is small cell lung carcinoma.