The expression level of HDAC7 mRNA in DLBCL tissues (n = 444) was significantly higher than that in adjacent normal tissues (n = 47) (4.283 ± 1.082 vs 6.180 ± 0.765, P < .001), as shown in Figure 2A. These results indicate that mRNA of HDAC7 expression is higher in DLBCL tissues. The gene discussed is HDAC7; the disease is diffuse large B-cell lymphoma.