Fig. 4. (A) MCF-7 and MCF-10A cells cultured with the Cy5-Apt (or non-Apt)/Dz catenanes and (B) subcellular localization analysis of MCF-7 cells cultured with the Cy5-Apt/Dz catenanes. The lysosomes and nuclei were, respectively, stained by Lysotracker (green) and Hoechst 33342 (blue).