The top 2,000 statistically significantly differentially expressed genes (corrected p < 0.05) for various group comparisons were analyzed, including ovarian PD-L1+ versus PD-L1− CCC, HGS metastatic versus matched HGS primary tumors, and HGS primary tumor versus normal fallopian tubes (Supplementary Dataset 2, ST2A-C). The gene discussed is CD274; the disease is neoplasm.