Fig. 4

Calcitriol reduces tumor growth in mice xenografted with human breast cancer cells. HCC1806 cells (triangles) and IDC cells (circles) were subcutaneously injected in athymic mice, which were treated without (black) or with 12.5 μg/kg calcitriol (white) during three weeks. Relative tumor volume is shown as the mean ± SEM. N ≥ 5