CCL5 and breast cancer: Enlarged inguinal lymph nodes in proximity of the mammary tumors were observed in 2/8 (25%) of control mice, and in 3/6 (50%), 1/6 (16%) and 5/6 (83%) of mice injected with MCF-7IL6, MCF-7RANTES or MCF-7IL6+RANTES cells, respectively.