Figure 5. EZH2 knockdown eliminates H3K27me3 marks in the HOX gene cluster and increases HOX gene expression.
(A) GEM analysis of MDS patients revealed higher expression of several HOXB, HOXC, and HOXD genes in patients with low EZH2 expression. (B) QRT-PCR revealed increased HOX gene expression in patients with low EZH2 expression. (C) GEM analysis of the EZH2 knockdown cells revealed higher expression of HOXA and HOXB genes. (D) QRT-PCR confirmed that elevated HOX gene cluster expression was observed in SKM-1 cells with EZH2 knockdown. Statistical significance relative to the control group is indicated: *p < 0.05; **p < 0.01; ***p < 0.001 (two-tailed, Student's t-test). Error bars show SEM.