WT1 and ovarian cancer: Previous studies have also shown that there are no differences in WT1 staining intensity between normal tissues and ovarian epithelial tumors (Jiang et al., 2014), and the overexpression of WT1 is closely associated with poor prognosis of ovarian cancer (Taube et al., 2016; Carter et al., 2018; Lu et al., 2018; Han et al., 2020).