Chemoradiotherapy-Integrated Tumor Cell-Derived Microparticles Mediate Tumor Eradication in Malignant Pleural Effusion. (PubMed, J Extracell Vesicles)
To further boost the tumoricidal effects of RT-MPs, we developed innovative chemoradiotherapy-integrated tumor cell-derived microparticles (CR-MPs) by loading RT-MPs with chemotherapeutic agents, including methotrexate (MTX), monomethyl auristatin E (MMAE), or doxorubicin (DOX). In murine MPE models, CR-MPs effectively suppressed tumor progression, extended survival, and demonstrated favorable biosafety. When combined with immunotherapy, this approach achieved a cure rate of up to 70%, induced durable immunological memory, and retained efficacy against chemotherapy-resistant tumors. This study establishes CR-MPs as a novel platform with robust therapeutic efficacy against MPE, highlighting their translational potential as a precision concurrent chemoradiotherapy strategy for MPE management in clinical settings.