The combined treatment Pt12 (10 μM) with anti-MUC1 (10 μg mL−1) reduced [3H]thymidine incorporation into DNA in breast cancer MCF-7 after 24 h to 21.0 % in MCF-7 cells and 22.0 % in MDA-MB-231 cells (Fig. 5). Here, MUC1 is linked to breast cancer.