EZH1 and breast cancer: Although the potential relevance between EZH1 and the other three targets has not been revealed, their upregulated expression levels and pro-tumor roles have been elucidated in BC or even TNBC (Ben-Hamo et al., 2020; Deng et al., 2020; Hong et al., 2021; Liu et al., 2020; Qi et al., 2019).