Monocytes, stimulated with breast cancer supernatant, showed increased expression of IL-10, IL-8, and chemokines CCL17 and CCL22, which are associated with an alternatively activated phenotype (aaMΦ); aaMΦ inhibits T cell proliferation [101] and their presence in breast carcinomas correlates with poor prognosis in patients [102]. This evidence concerns the gene CCL17 and breast carcinoma.