A Hypoxia-Activated Supramolecular Albumin Conjugate for Tumor-Selective Chemotherapy via Host-Guest Recognition and Reductive Drug Release. (PubMed, ACS Appl Mater Interfaces)
Using mitomycin C (MMC) as a model drug, we show that MAC enables precise hypoxia-triggered intracellular drug release, efficient lysosomal escape, and enhanced mitochondrial dysfunction...In vivo studies further demonstrate that MMC-MAC achieves rapid and sustained tumor accumulation, significantly suppresses tumor growth, induces robust apoptosis, alleviates tumor hypoxia, and exhibits improved systemic biosafety compared with free MMC. This work establishes a supramolecular-biological hybrid strategy that integrates host-guest chemistry, albumin-based delivery, and hypoxia-responsive activation into a single platform, providing a modular and generalizable paradigm for constructing tumor microenvironment-selective nanomedicines with enhanced therapeutic index.