The PLK1 pathway has previously been shown in a large number of studies to be closely related to a variety of cancers, including BRCA (Mao et al., 2021; Shi et al., 2016), and plays a role in multiple biological processes such as BRCA cell proliferation, drug resistance, and metastasis (Chiappa et al., 2022; Qian et al., 2011; Wang et al., 2021). Here, PLK1 is linked to cancer.