In gastric cancer, MeRIP-seq has been instrumental in revealing that METTL3- and METTL14-mediated m6A methylation regulates oncogenic lncRNA, such as PSMA3-AS1 and MIR22HG, whose site-specific m6A modifications enhance transcript stability and promote proliferation and stemness while suppressing apoptosis in GCSCs but were limited in resolution (~100–200 nt) [41,158]. Here, PSMA3 is linked to gastric cancer.