IHC staining data from 50 clinical samples in our hospital indicated that both of the expression scores of SLC31A1 and GTSE1 in ovarian malignant tumors were significantly higher than those in normal ovarian tissues (all p < 0.0001, Fig. 7c, d), they were positively correlated (R = 0.53, P < 0.001, Fig. 7e). Here, SLC31A1 is linked to ovarian cancer.