pH-regulated ''ON/OFF'' glucose oxidase nanoparticles for synergistic therapy and amplification of immunogenic cell death. (PubMed, Free Radic Biol Med)
Although the combination of glucose oxidase (GOx)-based starvation therapy and chemodynamic therapy (CDT) has shown great potential, the severe systemic toxicity caused by the non-specific activity of GOx in the blood circulation and the insufficient immunogenic cell death (ICD) effect induced by doxorubicin (DOX) jointly restrict its clinical transformation...The severe oxidative stress caused by this process and DOX synergistically enhances the ICD effect, successfully triggering calreticulin (CRT) exposure, high mobility group protein B1 (HMGB1), and ATP release, thereby promoting dendritic cell maturation and cytotoxic T lymphocyte infiltration, and stimulating a strong anti-tumor immune response in the 4T1 tumor-bearing mouse model. In this study, the problems of safety and synergistic efficacy were solved simultaneously through ingenious chemical design, providing a new paradigm for the development of intelligent tumor combination therapy.