An Ellagic Acid Coordinated Copper-Based Nanoplatform for Efficiently Overcoming Cancer Chemoresistance by Cuproptosis and Synergistic Inhibition of Cancer Cell Stemness

Ellagic acid inhibited stemness maintenance by suppressing the hedgehog pathway, while Cu2+ further decreased stemness features of tumor cells by disrupting mitochondrial metabolism, effectively enhancing doxorubicin-mediated chemotherapy.