Recent studies have found that a higher expression of BTN3A2 in ovarian cancer and triple negative breast cancer is positively correlated with increased T cell infiltration and a better prognosis (22, 23), but other studies have reported that BTN3A2 is associated with poor prognosis in gastric cancer and pancreatic ductal adenocarcinoma (PDAC) (22, 24). Here, BTN3A2 is linked to triple-negative breast carcinoma.