Anionic Hofmeister Effect Differentiated Subcellular Distributions of pH‐Responsive Metal–Organic Cages for Tumor Photodynamic Immunotherapy

burst while systemically activating T cell-dependent adaptive immunity to concurrently suppress tumor progression and inhibit lung metastasis. This work highlights the potential of anion-mediated biological behaviors of MOCs, providing a way to advance nanocage biomedicine for future precision theranostic applications.