EZH2 mRNA levels are elevated in NKTL and cell lines. (A) Expression score for EZH2 mRNAs in NKTL GEP dataset. EZH2 gene expressions in NKTL FFPE samples were compared with that in respective normal FFPE tissue controls, as well as the NK cell lines and normal NK cells using significance analysis of microarray. (B) Correlation between EZH2 transcript levels determined by qRT-PCR and EZH2 protein levels measured by IHC for NKTL samples.