Augmenting Immunogenic Cell Death and Alleviating Myeloid‐Derived Suppressor Cells by Sono‐Activatable Semiconducting Polymer Nanopartners for Immunotherapy

-mediated sono-activatable immunotherapy results in growth restraints of primary and distant tumors and noteworthy precaution of tumor metastases. This study thus provides a sono-activatable immunotherapeutic strategy with high precision and safety for cancer via overcoming post-treatment hypoxia and targeting MDSCs.