As a m6A reader, YTHDF3 was overexpressed and clinically correlated with breast cancer brain metastases (BCBM), suggesting that YTHDF3 overexpression was indispensable for multiple steps of BCBM through facilitating ST6GALNAC5, GJA1, EGFR, and VEGFA expressions [22]. This evidence concerns the gene GJA1 and breast carcinoma.