BRD9 and endocervical adenocarcinoma: When any of the m6A readers (IGF2BP2 and IGF2BP3) or m6A writer METTL3 were mutated, BRD9 was significantly highly expressed in cervical squamous cell carcinoma and endocervical adenocarcinoma (CESC), BRCA and LUAD (Figure 5B).