Time Rules the Efficacy of Immune Checkpoint Inhibitors in Photodynamic Therapy
Abstract: Lack of adequate effector T cells infiltrated in tumor is one of the main problems in the failure of immune checkpoint blockade therapy (ICBT). Photodynamic therapy (PDT) induced acute inflammation can sensitize tumors and activate T cells, thus assisting immune checkpoint inhibitors (ICI) against tumor growth and metastasis. T cells maturation and activation lag 3 to 7 days behind PDT. However, such timing in the combination therapy of ICI and PDT is commonly ignored in designing numerous multi‐functional integrated nanomedicines. Herein, the authors illustrate that intervention timing of ICI after PDT affects the anti‐tumor efficacy. A tumor‐targeting nanomedicine is prepared by encapsulating indocyanine green into CD44 specifically binding material, a hyaluronic acid conjugated lipid poly (ethylene glycol). The PDT nanomedicine is designed to induce a robust immune response in tumor. The optimal group (Combo‐STAR), ICI gave 5 days after PDT, significantly suppresses local tumor growth and eliminates metastasis. What should be highlighted is the time point of administration because if ICI is given too early, T cells are immature, otherwise, T cells are exhausted if ICI is given too late. This work presents theoretical guidance for raising awareness of intervention timing when augmenting ICBT with immune response inducers in clinic.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Time Rules the Efficacy of Immune Checkpoint Inhibitors in Photodynamic Therapy ; day:25 ; month:04 ; year:2022 ; extent:11
Advanced science ; (25.04.2022) (gesamt 11)
- Creator
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Wu, Qinghua
Chen, Yang
Li, Qing
Chen, Junmeng
Mo, Junfeng
Jin, Ming
Yang, Qianzhan
Rizzello, Loris
Tian, Xiaohe
Luo, Lei
- DOI
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10.1002/advs.202200999
- URN
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urn:nbn:de:101:1-2022042615035130177269
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:20 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Wu, Qinghua
- Chen, Yang
- Li, Qing
- Chen, Junmeng
- Mo, Junfeng
- Jin, Ming
- Yang, Qianzhan
- Rizzello, Loris
- Tian, Xiaohe
- Luo, Lei
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