Cancer cell membrane cloaked fluorescent liposomes loaded with metal-phenolic complex nanoparticles for combinatorial therapy against breast cancer

Abstract

The development of innovative strategies for effective cancer treatment remains a critical research focus. In this study, we present a novel approach by designing cancer cell membrane-cloaked fluorescent liposomes loaded with metal-phenolic complex nanoparticles for combinatorial therapy against breast cancer. This multifaceted therapeutic system leverages the unique properties of cancer cell membranes, fluorescent liposomes, and metal-phenolic complexes to create a highly targeted and versatile treatment platform. Cancer cell membranes serve as natural camouflage, allowing these nanoparticles to evade the immune system and specifically target breast cancer cells. The inclusion of fluorescent liposomes not only aids in real-time imaging of treatment progress but also enhances the therapeutic effect by providing photodynamic therapy. Metal-phenolic complexes provide a multifunctional payload, offering both thermally assisted cytotoxicity and the ability to modulate cellular pathways critical in cancer progression. The enhanced internalization found in 4T1 cell lines demonstrates the targeted efficiency of our nanosystem. We also observed a significant increase in intracellular reactive oxygen species (ROS), increased cell death, and a significant decrease in colony formation treated with the synthesized nanoparticles. Alteration in mitochondrial membrane potential indicated the onset of cellular apoptosis, which eventually resulted in cell death. The biomimetic CSpFeTA NPs exhibited remarkable deep tumor tissue penetration and apoptotic cell death assisted by NIR irradiation. The development of such a sophisticated nanosystem represents a significant advancement in cancer therapy, opening new avenues for personalized and effective breast cancer treatment.