METTL3 and neoplasm: TCGA database analysis showed that METTL3 in tumor tissue was significantly higher than that in normal tissue in both unpaired (Figure 1A left) and paired (Figure 1A right) sample comparisons and consistent with UALCAN (http://ualcan.path.uab.edu/cgi-bin/ualcan-res.pl accessed on 20 September 2021) website analysis results (Figure 1B).