WTAP and neoplasm: m6A RNA modification is a hotspot in the field of regulation in recent years, involving multiple cellular processes such as mRNA maturation, protein translation and molecular structure transformation.15 There is growing evidence that m6A dysregulation has a profound impact on the pathogenesis of many diseases, including GC.16 We examined the expression of WTAP in GC samples and found that WTAP expression in tumour tissues was higher than that in adjacent tissues.