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. 2023 Oct 4;14:1219785. doi: 10.3389/fimmu.2023.1219785

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Copyright © 2023 Jia, Wu, Long, Yu, He, Zhang, Wang, Ye and Tian

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Schematic illustration of PpIX-NLG@Lipo for combined PDT and IDO blockade (53). Copyright 2019, Ivyspring International. (B) Schematic illustration of the preparation procedure and the working principle of PCN-ACF-CpG@HA to integrate PDT, antihypoxic signaling, and CpG adjuvant as in situ tumor vaccine (54). Copyright 2019, John Wiley and Sons. (C) Schematic illustration of the acid-activatable micelleplexes for PD-L1 blockade-enhanced photodynamic cancer immunotherapy (55). Copyright 2016, American Chemical Society.