Abstract
Photodynamic therapy (PDT) often faces challenges such as oxygen dependence and limited tumour specificity. We report a tumour-targeting photosensitizer (PS), RuCXB, which enhances uptake by cancer cells by targeting overexpressed cyclooxygenase-2 enzyme in tumours. RuCXB also reduces oxygen dependence via a type I PDT mechanism and achieves a strong therapeutic effect through the synergistic induction of ferroptosis and apoptosis. This work presents a reliable strategy for developing potent PSs with enhanced PDT efficacy, tumour selectivity, and diminished oxygen dependence.
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