Even though the effect of ETV7 on the cytotoxic CD8+ T cells and the response to the immunotherapy remains to be studied, previous data showing the repression of IFN response in cancer and viral infections, as well as the new data demonstrated in this study strongly suggest that ETV7 may play a role in the repression of the inflammatory and immune processes in breast cancer. This evidence concerns the gene IFNA1 and breast carcinoma.