In addition, the analysis of Clinical Proteomic Tumor Analysis Consortium (CPTAC) clinical database on UALCAN website showed that the protein level of BTN3A3 in ovarian cancer was significantly lower than that in normal ovarian tissue (P = 0.0013) (Figure 1B), including 25 normal ovarian samples and 100 ovarian cancer samples. Here, BTN3A3 is linked to ovarian cancer.