BTN3A2 is associated with the prognosis of breast cancer (BRCA) and ovarian cancer (OV), and immunoinfiltration in triple-negative breast cancer (TNBC) and OV is highly associated with BTN3A2 (Le Page et al., 2012; Cai et al., 2020). This evidence concerns the gene BTN3A2 and invasive breast carcinoma.