A powerful organic photosensitizer for effective treatment of malignant tumor via activating antitumor immune response.

Photodynamic therapy (PDT) has emerged as an innovative approach in cancer treatment, effectively inducing tumor cell death through light-triggered reactive oxygen species (ROS) generation. Additionally, PDT can also trigger antitumor immune responses, thereby reducing the risk of postoperative tumor recurrence. However, the development of highly efficient photosensitizers aimed at activating immune responses for comprehensive tumor eradication remains at an early stage.