Four-pronged reversal of chemotherapy resistance by mangiferin amphiphile. (PubMed, J Control Release)
After clarifying the promotion effects of the cancer associated fibroblasts (CAFs) in chemoresistance, and leveraging our previous elucidation of the anti-inflammatory and ferroptosis-inducing ability of mangiferin, we synthesized mangiferin amphiphile (MMF) and developed a self-assembled carrier-free nanomedicine, named MP, through the self-assembly of MMF and the representative chemotherapeutic drug paclitaxel (PTX)...Furthermore, MP effectively suppressed glutathione peroxidase 4 (GPX4) expression to induce ferroptosis, mitigated the activation of IL-6/STAT3 pathway to deactivate CAFs within the inflammatory TME, and exhibited robust anti-cancer effects against PTX-resistant breast cancer both in vitro and in vivo. This mangiferin derivative represents a promising "all-in-one" nanocarrier for delivering chemotherapeutic drugs, offering a green, safe, and convenient self-assembled carrier-free nanomedicine to effectively overcome drug resistance.