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) and exosome inhibitor (GW4869). The PFG MPNs elicited superior near-infrared II fluorescence/photoacoustic imaging tracking performance for a precise photothermal therapy (PTT). PTT-augmented immunogenic cell death relieved exosomal silencing on DC maturation. GW4869 mediated PD-L1 based exosomal inhibition revitalized T cells and enhanced the ferroptosis. This novel synergy of PTT with antiexosomal PD-L1 enhanced ferroptosis evoked potent antitumor immunity in B16F10 tumors and immunological memory against metastatic tumors in lymph nodes.
Xie et al. (Wed,) studied this question.