Recent studies demonstrated that IFN‐β has tumour‐suppressive functions in several types of carcinomas, including triple‐negative breast cancer (TNBC), human colorectal carcinoma and oral squamous cell carcinoma, by activating cytotoxic T lymphocyte in the tumour microenvironment.80, 81, 82, 83. The gene discussed is IFNB1; the disease is neoplasm.