In breast cancer, a high ratio of tumour‐infiltrating intraepithelial CD8+ to FoxP3+ cells is characteristic for the medullary subtype

Abstract

In breast cancer, a predominance of tumour-infiltrating CD8+ over FoxP3+ cells was observed in MBC. Thus, the ratio of CD8+ to FoxP3+ cells rather than the absolute number of intratumoral FoxP3+ cells may be predictive for the clinical outcome of cancer.