β-Elemene could also inhibit the growth of C666-1 and HNE2 cells (nasopharyngeal carcinoma cells) associated with the inactivation of signal transducer and activator of transcription 3 (Stat3) and the reduced expression of DNMT1 and enhancer of zeste homolog 2 (EZH2) [21]. Here, STAT3 is linked to nasopharyngeal carcinoma.