In order to understand the expression level of BTN3A3 in different ovarian cancer cells, Western blot (Figure 1C) were used to detect the protein level of BTN3A3 in six ovarian cancer cell lines (ES-2, 3AO, HO-8910, HO-8910PM, NIH : OVCAR-3 and SK-OV-3). The gene discussed is BTN3A3; the disease is ovarian cancer.