The bulk m6A RNA methylation and METTL3 expression are increased in DLBCL. (A) The bulk m6A RNA methylation in 18 DLBCL tissues and 18 inflammatory lymph glands. ∗P < 0.05. (B) The bulk m6A RNA methylation in DLBCL cell lines (SU-DHL4, OCILy10, Farage, U2932, HBL1) and Human B lymphocyte (GM12878). ∗∗P < 0.01. (C) mRNA expression of METTL3 in 18 DLBCL tissues and 18 inflammatory lymph glands was analyzed by qRT-PCR. ∗∗P < 0.01. (D) METTL3 expression in TCGA database between DLBCL tissues and normal counterparts. ∗P < 0.05. (E) qRT-PCR was used to analyze mRNA expression of METTL3 in DLBCL cell lines (SU-DHL4, OCILy10, Farage, U2932, HBL1) and Human B lymphocyte (GM12878). ∗∗P < 0.01. (F) METTL3 expression in 4 DLBCL tissues and 4 inflammatory lymph glands was analyzed by western blotting. ∗∗P < 0.01. (G) mRNA expression of METTL14 in 18 DLBCL tissues and 18 inflammatory lymph glands was analyzed by qRT-PCR. ∗∗P < 0.01. (H) qRT-PCR was used to analyze mRNA expression of METTL14 in DLBCL cell lines (SU-DHL4, OCILy10, Farage, U2932, HBL1) and Human B lymphocyte (GM12878). ∗∗P < 0.01. (I) METTL14 expression in TCGA database between DLBCL tissues and normal counterparts. ∗P < 0.05. (J) mRNA expression of WTAP in 18 DLBCL tissues and 18 inflammatory lymph glands was analyzed by qRT-PCR. ∗P < 0.05. (K) qRT-PCR was used to analyze mRNA expression of WTAP in DLBCL cell lines (SU-DHL4, OCILy10, Farage, U2932, HBL1) and Human B lymphocyte (GM12878). ∗P < 0.05. (L) WATP expression in TCGA database between DLBCL tissues and normal counterparts. ∗P < 0.05.